Hello, The question of whether is united or delta better superior usually runs down to individual preferences and travel requirements. Delta is recognized for its dependent customer service and cleaner cabins, frequently achieving higher passenger satisfaction rankings. United excels due to its worldwide presence and robust collaborations within the Star Alliance, making it perfect for international travelers. It can be more difficult to make the most of Delta's SkyMiles because of dynamic pricing, whereas United's MileagePlus provides greater flexibility. Delta may be the better choice if you prioritize consistency and service, but for international routes and lounge access, United has the advantage.