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Delta Air Lines vs United Airlines Business Class Comparison

Delta Air Lines United Airlines
Rating 8/10 7/10
Seat type Delta One Suite with Privacy Door Polaris lie-flat
Lie-flat Yes Yes
Seat width 22 inches 22 inches
Alliance SkyTeam Star Alliance
IATA DL UA
Hubs Hartsfield-Jackson Atlanta (ATL), John F. Kennedy International (JFK), Los Angeles International (LAX) Newark (EWR), San Francisco (SFO), Chicago O'Hare (ORD), Houston (IAH)

Delta Air Lines — Pros & Cons

  • + Delta One Suite has a closing door — rare for US carriers
  • + Strong domestic connectivity from multiple hubs
  • + Consistent service quality for a US airline
  • Delta One Suite only on A350 and A330-900; older 767 lacks door
  • Wine and dining trail top international carriers

United Airlines — Pros & Cons

  • + Polaris seats with excellent bedding
  • + Dedicated Polaris lounges at hubs
  • + Massive global route network
  • Inconsistent product across fleet
  • Older 767s lack direct aisle access

The verdict

Delta Air Lines takes the edge with a 8/10 rating compared to 7/10 for United Airlines. Delta Air Lines stands out with its Delta One Suite with Privacy Door, while United Airlines offers Polaris lie-flat. Both airlines provide lie-flat business class seats, so the best choice depends on your route, schedule, and personal preferences.

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