The contributors of Flight-Report published 2 reviews on 1 airlines on the route Frankfurt - Frankfurt am Main (FRA) → Seattle - Seattle Tacoma (SEA). The airline with the best average rating is Lufthansa with 7.3/10. The average flight time is 10 hours and 15 minutes.
Airlines on this route are:
Frequent travelers recommend "Lufthansa Senator Lounge Z50" at FRA for comfort and entertainment/wifi.