{"slug":"delta-vs-united","question":"Delta Air Lines vs United Airlines","answer":"United Airlines is expanding to serve more global destinations in 2026, while Delta is modernizing its long-haul fleet with new aircraft like the Airbus A350-1000. Both carriers offer premium cabin upgrades, but United's Polaris business class redesign and A321XLR introduction represent more aggressive near-term improvements.","answer_curated":true,"verdict":"Choose Delta if you prioritize modern long-haul aircraft with advanced engines and transcontinental comfort on premium routes. Choose United if you value expanding global destination access, innovative business class technology with wireless charging, and increased frequency on new routes in 2026.","keyDifferences":[{"label":"Global Route Expansion 2026","winner":"b","entityAValue":"Focused modernization strategy","entityBValue":"Most destinations of any U.S. carrier"},{"label":"New Long-Haul Aircraft","winner":"a","entityAValue":"Airbus A350-1000 with Rolls-Royce Trent XWB-97 engines","entityBValue":"Airbus A321XLR introduction"},{"label":"Business Class Seat Screen Size","winner":"b","entityAValue":"Standard premium displays","entityBValue":"16-inch 4K OLED with Bluetooth"},{"label":"Polaris Business Class","winner":"b","entityAValue":"Current configuration","entityBValue":"Redesigned for 2026"},{"label":"Stock Performance 2026","winner":"tie","entityAValue":"Strong performance noted","entityBValue":"Strong performance noted"}],"winner":{"slug":"delta-air-lines","name":"Delta Air Lines"},"confidence":"high","entities":[{"name":"Delta Air Lines","slug":"delta-air-lines","url":"https://www.aversusb.net/entity/delta-air-lines","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/delta-air-lines"},{"name":"United Airlines","slug":"united-airlines","url":"https://www.aversusb.net/entity/united-airlines","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/united-airlines"}],"faqs":[{"question":"Is Delta or United a better airline?","answer":"Delta consistently ranks above United in customer satisfaction (J.D. Power, DOT consumer metrics) and on-time performance. Delta's investment in operations post-COVID has made it particularly reliable. United has improved significantly and now matches Delta on many routes. Choose Delta for: domestic US (especially South/East), transatlantic via Paris/Amsterdam, reliable operations. Choose United for: transpacific flights (US-Japan, US-Asia), Star Alliance benefits, and if Chase/United MileagePlus is your loyalty program."},{"question":"Which has better business class, Delta One or United Polaris?","answer":"Both Delta One and United Polaris are strong international business class products on new widebody aircraft, offering lie-flat seats with direct aisle access. Delta One Suite (on select 767/A350 routes) has full closing doors and is widely considered the best US airline business class available. United Polaris is excellent but on older aircraft (especially 777s), the product can vary. For the best cabin experience on specific routes: check which aircraft Delta vs United is operating — the plane matters more than the brand."},{"question":"Is Delta SkyMiles or United MileagePlus better?","answer":"United MileagePlus is generally considered the better loyalty program. MileagePlus miles don't expire; redemption options include broad Star Alliance partner awards; Chase Ultimate Rewards transfer 1:1 to MileagePlus. Delta SkyMiles is criticized for dynamic award pricing (less predictable redemption values) and not being transferable from many non-Amex points. However, Delta Amex co-branded cards are more widely used, so if you're an Amex cardholder, SkyMiles earning can be strong. For pure award flexibility: MileagePlus."}],"attribution":{"source":"A Versus B","url":"https://www.aversusb.net/compare/delta-vs-united","license":"CC BY 4.0","citationFormat":"According to A Versus B (https://www.aversusb.net/compare/delta-vs-united), United Airlines is expanding to serve more global destinations in 2026, while Delta is modernizing its long-haul fleet with new aircraft like the Airbus A350-1000. Both carriers offer premium cabin up","dateModified":"2026-08-18T09:00:24.004Z"},"relatedQuestionsUrl":"https://www.aversusb.net/api/faq/delta-vs-united","relatedComparisonsUrl":"https://www.aversusb.net/api/v1/related/delta-vs-united","knowledgeGraphUrl":"https://www.aversusb.net/api/knowledge-graph/delta-vs-united","claimReviewSchema":{"@context":"https://schema.org","@type":"ClaimReview","@id":"https://www.aversusb.net/compare/delta-vs-united#claimreview","url":"https://www.aversusb.net/compare/delta-vs-united","inLanguage":"en-US","isAccessibleForFree":true,"conditionsOfAccess":"Free","claimReviewed":"Delta Air Lines is better than United Airlines for most use cases","reviewBody":"United Airlines is expanding to serve more global destinations in 2026, while Delta is modernizing its long-haul fleet with new aircraft like the Airbus A350-1000. Both carriers offer premium cabin upgrades, but United's Polaris business class redesign and A321XLR introduction represent more aggressive near-term improvements.","datePublished":"2025-06-01T00:00:00.000Z","dateModified":"2026-08-18T09:00:24.004Z","reviewRating":{"@type":"Rating","ratingValue":"TRUE","bestRating":"TRUE","worstRating":"FALSE","alternateName":"Delta Air Lines wins","ratingExplanation":"Verified verdict based on structured attribute comparison, community votes, and expert analysis"},"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B","url":"https://www.aversusb.net"},"publisher":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B","url":"https://www.aversusb.net"},"itemReviewed":{"@type":"Claim","@id":"https://www.aversusb.net/compare/delta-vs-united#claim","inLanguage":"en-US","name":"Delta Air Lines is better than United Airlines for most use cases","text":"United Airlines is expanding to serve more global destinations in 2026, while Delta is modernizing its long-haul fleet with new aircraft like the Airbus A350-1000. Both carriers offer premium cabin upgrades, but United's Polaris business class redesign and A321XLR introduction represent more aggressive near-term improvements.","author":{"@type":"Thing","name":"Internet consensus"},"appearance":{"@type":"WebPage","@id":"https://www.aversusb.net/compare/delta-vs-united","url":"https://www.aversusb.net/compare/delta-vs-united","name":"Delta Air Lines vs United Airlines","inLanguage":"en-US"},"firstAppearance":{"@type":"WebPage","@id":"https://www.aversusb.net/compare/delta-vs-united","url":"https://www.aversusb.net/compare/delta-vs-united","name":"Delta Air Lines vs United Airlines"}},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".claim-review-answer","#short-answer","#verdict"]}}}