The contributors of Flight-Report published 2 reviews on 2 airlines on the route Seattle - Seattle Tacoma (SEA) → London - Heathrow (LHR). The airline with the best average rating is Virgin Atlantic with 8.2/10. The average flight time is 8 hours and 52 minutes.
Airlines on this route are:
Frequent travelers recommend "British Airways Terraces" at SEA for comfort and services.