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Aer Lingus vs United Airlines Business Class Comparison

Aer Lingus United Airlines
Rating 7/10 7/10
Seat type Lie-flat Polaris lie-flat
Lie-flat Yes Yes
Seat width 21 inches 22 inches
Alliance Star Alliance
IATA EI UA
Hubs Dublin (DUB) Newark (EWR), San Francisco (SFO), Chicago O'Hare (ORD), Houston (IAH)

Aer Lingus — Pros & Cons

  • + US pre-clearance in Dublin saves time at arrival
  • + Competitive transatlantic pricing
  • + Good connectivity to Europe
  • Only A330 for long-haul
  • No alliance (partner of IAG)
  • Lounge at Dublin basic

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

Both Aer Lingus and United Airlines earn a 7/10 rating, making this a close call. Aer Lingus offers Lie-flat while United Airlines features Polaris lie-flat. Your decision should come down to route availability, alliance loyalty, and which seat product appeals more to you.

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