Delta Air Lines vs United Airlines
type: WebPage
description: Delta operates a larger fleet (900+ aircraft vs 800+) and maintains higher on-time performance (82.5% vs 79.8%), while United offers more international routes (340+ destinations) and competitive pricing on long-haul flights. Both are major U.S. carriers with distinct operational strengths.
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date published: 2026-07-08T00:30:23.786Z
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date modified: 2026-07-08T00:30:23.837Z
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caption: Delta Air Lines vs United Airlines — Side-by-side comparison on A Versus B

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Delta Air Lines vs United Airlines
type: Article
type: TechArticle
abstract: Delta operates a larger fleet (900+ aircraft vs 800+) and maintains higher on-time performance (82.5% vs 79.8%), while United offers more international routes (340+ destinations) and competitive pricing on long-haul flights. Both are major U.S. carriers with distinct operational strengths.
description: Delta operates a larger fleet (900+ aircraft vs 800+) and maintains higher on-time performance (82.5% vs 79.8%), while United offers more international routes (340+ destinations) and competitive pricing on long-haul flights. Both are major U.S. carriers with distinct operational strengths.
language: en-US
main entity of page: Delta Air Lines vs United Airlines
content reference time: 2026-07-08T00:30:23.837Z
author: A Versus B
publisher: A Versus B
date published: 2026-07-08T00:30:23.786Z
date created: 2026-07-08T00:30:23.786Z
date modified: 2026-07-08T00:30:23.837Z
text: Choose Delta if you prioritize reliability, on-time performance (2.7% better), and higher customer satisfaction scores — ideal for business travelers who value consistency. Choose United if you need extensive international coverage, competitive pricing on long-haul routes, or fly frequently to destinations outside Delta's network; their 340+ global destinations provide greater flexibility for international business and leisure travel.
genre: Travel
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  object: Delta Air Lines
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about: Delta Air Lines
about: United Airlines
mentions: On-Time Performance (2024)
mentions: Fleet Size
mentions: International Destinations
mentions: Baggage Fee (1st checked bag)
mentions: Frequent Flyer Program: Annual Elite Miles Threshold
mentions: Average Ticket Price (domestic round-trip, 2024)
mentions: Customer Satisfaction Score (J.D. Power 2024)
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related link: https://www.aversusb.net/compare/delta-vs-united-airlines-comparison-2026
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related link: https://www.aversusb.net/compare/united-vs-delta-2026
related link: https://www.aversusb.net/compare/delta-airlines-vs-united
citation: Delta Air Lines — Wikipedia
citation: United Airlines — Wikipedia
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significant link: https://www.aversusb.net/entity/united-airlines
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A Versus B
type: Organization

Delta Air Lines
type: Organization
description: Major U.S. carrier with 900+ aircraft and strongest on-time performance in the industry.
alternate name: DAL
language: en-US
image: ImageObject
  caption: Delta Air Lines
subject of: Delta Air Lines vs United Airlines

United Airlines
type: Organization
description: Major U.S. carrier with 800+ aircraft and most extensive international route network.
alternate name: UA
language: en-US
image: ImageObject
  caption: United Airlines
subject of: Delta Air Lines vs United Airlines

Delta Air Lines vs United Airlines — Comparison Data
type: Dataset
description: Structured comparison data for Delta Air Lines vs United Airlines with 162 attributes.
language: en-US
license: https://creativecommons.org/licenses/by/4.0/
creator: A Versus B
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variable measured: Business Class Seat Screen Size
variable measured: Ultra-Long-Range Aircraft Orders

Delta Air Lines vs United Airlines — Attribute Category Vocabulary
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description: Taxonomy of attribute categories used to classify comparison data for Delta Air Lines vs United Airlines.
has defined term: Fleet Operations
has defined term: Modern Narrowbody Fleet
has defined term: Legacy Narrowbody Fleet
has defined term: Long-Haul Capacity
has defined term: Strategy
has defined term: Business Model
has defined term: Future Fleet
has defined term: Legacy Aircraft
has defined term: Loyalty
has defined term: Route Network
has defined term: Fleet Composition
has defined term: Fleet Modernization
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has defined term: Cabin Classes
has defined term: Financial
has defined term: Cabin Amenities
has defined term: Operations
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has defined term: Competitive Position
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has defined term: Routes
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has defined term: Strategic Focus
has defined term: Financial Performance
has defined term: Revenue Growth
has defined term: External Impact
has defined term: Product Innovation
has defined term: Aircraft Technology
has defined term: Operations & Reliability
has defined term: Pricing
has defined term: Loyalty Program
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has defined term: Customer Service
has defined term: Network
has defined term: Comfort
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has defined term: Product
has defined term: Performance
has defined term: Loyalty Programs
has defined term: Customer Service & Reliability
has defined term: Operational Excellence
has defined term: Reliability
has defined term: Aircraft
has defined term: Scale
has defined term: Fleet
has defined term: Coverage
has defined term: Premium Cabin
has defined term: Network Size
has defined term: Customer Loyalty
has defined term: Expansion
has defined term: International
has defined term: Global Coverage
has defined term: Network Strategy
has defined term: Community
has defined term: Rewards

Fleet Operations
type: DefinedTerm
term code: fleet-operations
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Modern Narrowbody Fleet
type: DefinedTerm
term code: modern-narrowbody-fleet
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Legacy Narrowbody Fleet
type: DefinedTerm
term code: legacy-narrowbody-fleet
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Long-Haul Capacity
type: DefinedTerm
term code: long-haul-capacity
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Strategy
type: DefinedTerm
term code: strategy
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Business Model
type: DefinedTerm
term code: business-model
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Future Fleet
type: DefinedTerm
term code: future-fleet
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Legacy Aircraft
type: DefinedTerm
term code: legacy-aircraft
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Loyalty
type: DefinedTerm
term code: loyalty
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Route Network
type: DefinedTerm
term code: route-network
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Fleet Composition
type: DefinedTerm
term code: fleet-composition
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Fleet Modernization
type: DefinedTerm
term code: fleet-modernization
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Service Quality
type: DefinedTerm
term code: service-quality
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Customer Experience
type: DefinedTerm
term code: customer-experience
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Business Strategy
type: DefinedTerm
term code: business-strategy
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Passenger Experience
type: DefinedTerm
term code: passenger-experience
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Premium Amenities
type: DefinedTerm
term code: premium-amenities
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Fleet Strategy
type: DefinedTerm
term code: fleet-strategy
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Cabin Technology
type: DefinedTerm
term code: cabin-technology
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Cabin Classes
type: DefinedTerm
term code: cabin-classes
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Financial
type: DefinedTerm
term code: financial
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Cabin Amenities
type: DefinedTerm
term code: cabin-amenities
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Operations
type: DefinedTerm
term code: operations
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Premium Service
type: DefinedTerm
term code: premium-service
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Passenger Amenities
type: DefinedTerm
term code: passenger-amenities
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Competitive Position
type: DefinedTerm
term code: competitive-position
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Amenities
type: DefinedTerm
term code: amenities
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Routes
type: DefinedTerm
term code: routes
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Premium Services
type: DefinedTerm
term code: premium-services
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Strategic Focus
type: DefinedTerm
term code: strategic-focus
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Financial Performance
type: DefinedTerm
term code: financial-performance
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Revenue Growth
type: DefinedTerm
term code: revenue-growth
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

External Impact
type: DefinedTerm
term code: external-impact
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Product Innovation
type: DefinedTerm
term code: product-innovation
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Aircraft Technology
type: DefinedTerm
term code: aircraft-technology
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Operations & Reliability
type: DefinedTerm
term code: operations-&-reliability
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Pricing
type: DefinedTerm
term code: pricing
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Loyalty Program
type: DefinedTerm
term code: loyalty-program
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Network Reach
type: DefinedTerm
term code: network-reach
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Product Quality
type: DefinedTerm
term code: product-quality
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Customer Service
type: DefinedTerm
term code: customer-service
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Network
type: DefinedTerm
term code: network
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Comfort
type: DefinedTerm
term code: comfort
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Rewards Program
type: DefinedTerm
term code: rewards-program
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Product
type: DefinedTerm
term code: product
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Performance
type: DefinedTerm
term code: performance
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Loyalty Programs
type: DefinedTerm
term code: loyalty-programs
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Customer Service & Reliability
type: DefinedTerm
term code: customer-service-&-reliability
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Operational Excellence
type: DefinedTerm
term code: operational-excellence
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Reliability
type: DefinedTerm
term code: reliability
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Aircraft
type: DefinedTerm
term code: aircraft
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Scale
type: DefinedTerm
term code: scale
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Fleet
type: DefinedTerm
term code: fleet
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Coverage
type: DefinedTerm
term code: coverage
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Premium Cabin
type: DefinedTerm
term code: premium-cabin
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Network Size
type: DefinedTerm
term code: network-size
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Customer Loyalty
type: DefinedTerm
term code: customer-loyalty
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Expansion
type: DefinedTerm
term code: expansion
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

International
type: DefinedTerm
term code: international
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Global Coverage
type: DefinedTerm
term code: global-coverage
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Network Strategy
type: DefinedTerm
term code: network-strategy
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Community
type: DefinedTerm
term code: community
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

Rewards
type: DefinedTerm
term code: rewards
in defined term set: Delta Air Lines vs United Airlines — Attribute Category Vocabulary

faq
type: FAQPage
language: en-US
is accessible for free: true
conditions of access: Free
date modified: 2026-07-08T00:30:23.837Z
author: A Versus B
publisher: A Versus B
is part of: Delta Air Lines vs United Airlines
main entity: Which airline has better on-time performance?
  type: Question
  accepted answer: Answer
    text: Delta Air Lines leads with 82.5% on-time arrivals vs United's 79.8% (DOT 2024 data). This 2.7% difference translates to approximately 10 additional delayed flights per 1,000 flights for United. Delta's superior logistics and fleet management contribute to this advantage.
    language: en-US
main entity: Which airline is cheaper?
  type: Question
  accepted answer: Answer
    text: United Airlines offers lower average domestic ticket prices at $378 vs Delta's $385 round-trip (2024 data). However, both charge identical baggage fees ($35 first bag). Long-haul and premium cabin pricing varies by route; United's extensive international network sometimes enables competitive pricing on transoceanic routes.
    language: en-US
main entity: Which airline has more international routes?
  type: Question
  accepted answer: Answer
    text: United Airlines serves 340+ destinations globally vs Delta's 300+, giving United a 40-destination advantage. United has stronger presence in Latin America and Asia-Pacific, while Delta dominates domestic U.S. routes with better frequency on popular corridors.
    language: en-US
main entity: Which loyalty program is better?
  type: Question
  accepted answer: Answer
    text: Both SkyMiles (Delta) and MileagePlus (United) require 25,000 miles for entry-level elite status. Delta offers 15% bonus miles on elite redemptions; United provides free checked bags for premium cardholders. Program value depends on your travel patterns—Delta rewards frequent flyers, United rewards credit card holders.
    language: en-US
main entity: Which airline has higher customer satisfaction?
  type: Question
  accepted answer: Answer
    text: Delta scored 78/100 vs United's 74/100 on J.D. Power's 2024 North American Airline Satisfaction Study. Delta's higher score reflects better on-time performance, fewer complaint incidents, and improved cabin experience. United is working to improve through fleet modernization and customer service initiatives.
    language: en-US

Q4 2025 Revenue Growth Rate
type: PropertyValue
value reference: Revenue Growth

Primary Narrowbody Aircraft
type: PropertyValue
value reference: Fleet Composition

Widebody Fleet Modernization
type: PropertyValue
value reference: Fleet Strategy

New Aircraft Deliveries Status
type: PropertyValue
value reference: Fleet Modernization

Revenue Diversification Programs
type: PropertyValue
value reference: Business Strategy

Aircraft Fleet Diversity Index
type: PropertyValue
value reference: Fleet Operations

Fleet Age Modernization Progress
type: PropertyValue
value reference: Fleet Strategy

Fleet Size Advantage
type: PropertyValue
value reference: Competitive Position

Business Class Seat Screen Size
type: PropertyValue
value reference: Premium Amenities

Ultra-Long-Range Aircraft Orders
type: PropertyValue
value reference: Fleet Strategy

Next-Generation Narrowbody Integration
type: PropertyValue
value reference: Fleet Modernization

Premium Cabin Redesign Timeline
type: PropertyValue
value reference: Product Innovation

A350-1000 Wing Size vs A321XLR Range
type: PropertyValue
value reference: Aircraft Technology

Business Class Display Screen Size
type: PropertyValue
value reference: Cabin Amenities

Global Destination Leadership 2026
type: PropertyValue
value reference: Route Network

Engine Technology - Long-haul Aircraft
type: PropertyValue
value reference: Aircraft Technology

Wireless Charging in Business Class
type: PropertyValue
value reference: Cabin Technology

Aircraft Fleet Modernization Scope
type: PropertyValue
value reference: Fleet Strategy

Stock Performance Trajectory 2026
type: PropertyValue
value reference: Financial Performance

On-Time Arrival Rate (2025)
type: PropertyValue
value reference: Operations & Reliability

Average Domestic Ticket Price
type: PropertyValue
value reference: Pricing

Customer Satisfaction Score (J.D. Power 2025)
type: PropertyValue
value reference: Customer Experience

Frequent Flyer Elite Status Threshold
type: PropertyValue
value reference: Loyalty Program

Involuntary Overbooking Rate
type: PropertyValue
value reference: Operations & Reliability

Global Destinations
type: PropertyValue
value reference: Network Reach

First-Class Seat Pitch (Long-Haul)
type: PropertyValue
value reference: Product Quality

On-Time Performance
type: PropertyValue
value reference: Operations

Annual Passengers
type: PropertyValue
value reference: Operations

Customer Satisfaction (ACSI Score)
type: PropertyValue
value reference: Customer Service

First Checked Baggage Fee
type: PropertyValue
value reference: Pricing

Frequent Flyer Program Members
type: PropertyValue
value reference: Loyalty

DOT Complaints per 100k Passengers
type: PropertyValue
value reference: Service Quality

International Destinations
type: PropertyValue
value reference: Network

Fleet Size
type: PropertyValue
value reference: Operations

Customer Satisfaction (J.D. Power 2024)
type: PropertyValue
value reference: Customer Experience

Economy Seat Pitch
type: PropertyValue
value reference: Comfort

Premium Economy Seat Pitch
type: PropertyValue
value reference: Comfort

Daily Domestic Flights
type: PropertyValue
value reference: Network

Frequent Flyer Base Earning Rate
type: PropertyValue
value reference: Rewards Program

Customer Satisfaction Score
type: PropertyValue
value reference: Customer Experience

Average Annual Revenue
type: PropertyValue
value reference: Financial

Customer Satisfaction (J.D. Power 2025)
type: PropertyValue
value reference: Customer Experience

Average Domestic One-Way Base Fare
type: PropertyValue
value reference: Pricing

Premium Cabin Seat Pitch (Business/Polaris)
type: PropertyValue
value reference: Amenities

Customer Satisfaction Rating
type: PropertyValue
value reference: Customer Service

International Destinations Served
type: PropertyValue
value reference: Network

Average Domestic Round-Trip Ticket Price
type: PropertyValue
value reference: Pricing

Main Hub Count and Size
type: PropertyValue
value reference: Network

Premium Economy Legroom Benefit
type: PropertyValue
value reference: Product

Total Aircraft Fleet
type: PropertyValue
value reference: Operations

On-Time Arrival Rate (2024)
type: PropertyValue
value reference: Performance

Daily Flights Operated
type: PropertyValue
value reference: Operations

Customer Satisfaction Score (J.D. Power 2024)
type: PropertyValue
value reference: Customer Service

Annual Frequent Flyer Miles Devaluation
type: PropertyValue
value reference: Loyalty Programs

Widebody Aircraft (787/777/350)
type: PropertyValue
value reference: Fleet Composition

DOT Complaints Per 100,000 Passengers (2024)
type: PropertyValue
value reference: Customer Service & Reliability

On-Time Arrival Performance (2024)
type: PropertyValue
value reference: Operational Excellence

Total Fleet Size
type: PropertyValue
value reference: Operations

First Checked Baggage Fee (Economy)
type: PropertyValue
value reference: Pricing

J.D. Power Customer Satisfaction Score (2024)
type: PropertyValue
value reference: Customer Experience

Average Economy Seat Pitch
type: PropertyValue
value reference: Comfort

Domestic Hub Cities
type: PropertyValue
value reference: Route Network

On-Time Arrival Performance
type: PropertyValue
value reference: Reliability

Average Fleet Age
type: PropertyValue
value reference: Aircraft

DOT Complaint Rate
type: PropertyValue
value reference: Service Quality

Revenue Passenger Miles (Annual)
type: PropertyValue
value reference: Scale

Mishandled Baggage Rate
type: PropertyValue
value reference: Operations

Modern Aircraft (787/737MAX) Percentage
type: PropertyValue
value reference: Fleet

Complaint Ratio
type: PropertyValue
value reference: Customer Experience

Total Aircraft Fleet Size
type: PropertyValue
value reference: Operations

On-Time Arrival Rate
type: PropertyValue
value reference: Performance

Global Destinations Served
type: PropertyValue
value reference: Coverage

Average Domestic Round-Trip Ticket
type: PropertyValue
value reference: Pricing

Elite Frequent Flyer Entry Threshold
type: PropertyValue
value reference: Loyalty Program

Annual Revenue (2024)
type: PropertyValue
value reference: Financial Performance

Annual Revenue
type: PropertyValue
value reference: Financial

Destinations
type: PropertyValue
value reference: Network

Alliance
type: PropertyValue
value reference: Network

Business Class Lie-Flat Seats (Long-Haul)
type: PropertyValue
value reference: Premium Cabin

Premium Cabin Privacy Feature
type: PropertyValue
value reference: Premium Cabin

New Aircraft Deliveries (2026)
type: PropertyValue
value reference: Fleet Modernization

Business Class Experience Consistency
type: PropertyValue
value reference: Premium Service

Premium Lounge Access
type: PropertyValue
value reference: Amenities

Overall Flight Count
type: PropertyValue
value reference: Network Size

Transatlantic Business Class Quality
type: PropertyValue
value reference: Premium Service

Loyalty Program Updates
type: PropertyValue
value reference: Customer Loyalty

Onboard Experience Improvements
type: PropertyValue
value reference: Customer Service

New Destinations Launched (2026)
type: PropertyValue
value reference: Expansion

Long-Haul Route Innovation
type: PropertyValue
value reference: International

Customer Service Complaint Trend
type: PropertyValue
value reference: Reliability

Flight Delay/Cancellation Rate
type: PropertyValue
value reference: Reliability

International Network Reach
type: PropertyValue
value reference: Global Coverage

Regional Hub Focus
type: PropertyValue
value reference: Network Strategy

Widebody Fleet Strategy
type: PropertyValue
value reference: Fleet

Corporate Social Responsibility
type: PropertyValue
value reference: Community

Fleet Size
type: PropertyValue
value reference: Operations

Domestic Destinations
type: PropertyValue
value reference: Network

International Destinations
type: PropertyValue
value reference: Network

Free Checked Baggage
type: PropertyValue
value reference: Amenities

Average Domestic Ticket Price
type: PropertyValue
value reference: Pricing

On-Time Performance
type: PropertyValue
value reference: Operations

Customer Satisfaction Rating
type: PropertyValue
value reference: Service Quality

Loyalty Program Earning Rate
type: PropertyValue
value reference: Rewards