United Airlines vs Delta Business Class
United Airlines
Major U.S. carrier expanding to most destinations globally with redesigned Polaris business class in 2026
Travelers seeking network breadth, frequent flyers seeking route options, and those preferring modern aircraft on new deliveries
VS
DA
Delta Air Lines Business Class
Premium cabin product featuring enclosed Delta One suites with private doors and sliding seats
Business travelers prioritizing privacy and consistency, frequent international flyers, and those valuing premium cabin sophistication
Short Answer
United Airlines is a full-service carrier with 982 aircraft operating comprehensive domestic and international routes, while Delta Business Class refers specifically to Delta's premium cabin experience across their 924-aircraft fleet. Both offer competitive lie-flat business class products, though Delta One features enclosed suites while United's Polaris offers enhanced comfort with varying configurations.
Our Verdict
United Airlines operates a slightly larger mainline fleet of 982 aircraft compared to Delta's 924, providing extensive route coverage across North America and internationally. However, Delta's Business Class product (Delta One) offers a more premium and consistent experience with enclosed suites, while United's Polaris business class is competitive but varies more by aircraft. Both airlines provide excellent premium cabin experiences, with the choice depending on whether you prioritize network coverage or cabin sophistication.
United Airlines10
5Delta Air Lines Business Class
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Key Differences at a Glance
📏
Fleet Size: United Airlines wins (982 mainline aircraft vs 924 mainline aircraft)
🔹
Business Class Seat Type: Delta Air Lines Business Class wins (Delta One enclosed suites with sliding doors vs Polaris lie-flat (16-28 seats per aircraft))
📅
Average Fleet Age: 15 years vs 15 years
Key Facts & Figures
| Metric | United Airlines | Delta Air Lines Business Class | Diff |
|---|---|---|---|
| Annual Revenue(USD) | $54 Billion | — | — |
| Destinations | 340+ | — | — |
| Mainline Fleet Size(aircraft) | 982 | 924 aircraft | +6% |
| Boeing 737-800/900ER Aircraft(aircraft) | 254 (127 each variant) |
Key Differences
United Airlines
Attribute
Delta Air Lines Business Class
982 mainline aircraft🏆
Fleet Size
924 mainline aircraft
Polaris lie-flat (16-28 seats per aircraft)
Business Class Seat Type
Delta One enclosed suites with sliding doors🏆
15 years
Average Fleet Age
15 years
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Last updated: March 28, 2026AI generated
