Featured airlines
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 15% on select hotels after you book a flight*
Plan, book, fly with confidence
Cheap flights from Everett to Londonderry (SEA-BFS)
Prices were available within the past 7 days and start at €413 for one-way flights and €881 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Fri, 13 Dec - Sun, 29 Dec
SEA
Seattle
BHD
Belfast
€881 Return, found 6 days ago
€881
Return
found 6 days ago
Fri, 13 Dec - Sun, 29 Dec
SEA
Seattle
BHD
Belfast
€962 Return, found 6 days ago
€962
Return
found 6 days ago
Fri, 13 Dec - Sun, 29 Dec
SEA
Seattle
BHD
Belfast
€970 Return, found 6 days ago
€970
Return
found 6 days ago
Fri, 13 Dec - Sun, 29 Dec
SEA
Seattle
BHD
Belfast
€1,010 Return, found 6 days ago
€1,010
Return
found 6 days ago
Fri, 11 Oct - Sun, 13 Oct
SEA
Seattle
BHD
Belfast
€1,011 Return, found 6 days ago
€1,011
Return
found 6 days ago
Fri, 11 Oct - Sun, 13 Oct
SEA
Seattle
BHD
Belfast
€1,064 Return, found 6 days ago
€1,064
Return
found 6 days ago
Nearby Cities
Expedia's Latest Trends
Hotels
Flights
Packages
*Available to Expedia members.