Cheap Flights from Istanbul to Bellevue

View €471 flight on Fri, 5 Dec 2025Opens in a new window

Popular airlines from Istanbul to Bellevue

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Cheap flights from Istanbul to Bellevue (IST-SEA)

Prices were available within the past 7 days and start at €471 for one-way flights and €421 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 21 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€421 Return, found 19 hours ago
€421
Return
found 19 hours ago
Select Icelandair flight, departing Fri, 21 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €421 found 19 hours ago
American Airlines
Fri, 21 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€462 Return, found 19 hours ago
€462
Return
found 19 hours ago
Select American Airlines flight, departing Fri, 21 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €462 found 19 hours ago
British Airways
Fri, 21 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€464 Return, found 19 hours ago
€464
Return
found 19 hours ago
Select British Airways flight, departing Fri, 21 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €464 found 19 hours ago
KLM
Fri, 21 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€522 Return, found 19 hours ago
€522
Return
found 19 hours ago
Select KLM flight, departing Fri, 21 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €522 found 19 hours ago
Lufthansa
Fri, 21 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€560 Return, found 19 hours ago
€560
Return
found 19 hours ago
Select Lufthansa flight, departing Fri, 21 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €560 found 19 hours ago
Delta
Fri, 26 Sep - Fri, 24 Oct
IST
Istanbul
SEA
Seattle
€565 Return, found 3 days ago
€565
Return
found 3 days ago
Select Delta flight, departing Fri, 26 Sep from Istanbul to Seattle, returning Fri, 24 Oct, priced at €565 found 3 days ago

Find the cheapest month to fly from Istanbul (IST) to Seattle (SEA)

February is typically the cheapest month to fly

From €421 - €1,064 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.