Cheap Flights from Istanbul to Bellevue

View €474 flight on Mon, 17 Nov 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 €474 for one-way flights and €527 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Sun, 23 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€527 Return, found 4 days ago
€527
Return
found 4 days ago
Select KLM flight, departing Sun, 23 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €527 found 4 days ago
Air France
Sun, 23 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€543 Return, found 4 days ago
€543
Return
found 4 days ago
Select Air France flight, departing Sun, 23 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €543 found 4 days ago
British Airways
Sat, 20 Sep - Tue, 30 Sep
IST
Istanbul
SEA
Seattle
€552 Return, found 1 day ago
€552
Return
found 1 day ago
Select British Airways flight, departing Sat, 20 Sep from Istanbul to Seattle, returning Tue, 30 Sep, priced at €552 found 1 day ago
Lufthansa
Sat, 20 Sep - Tue, 30 Sep
IST
Istanbul
SEA
Seattle
€558 Return, found 1 day ago
€558
Return
found 1 day ago
Select Lufthansa flight, departing Sat, 20 Sep from Istanbul to Seattle, returning Tue, 30 Sep, priced at €558 found 1 day ago
Air Canada
Sun, 23 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€582 Return, found 4 days ago
€582
Return
found 4 days ago
Select Air Canada flight, departing Sun, 23 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €582 found 4 days ago
American Airlines
Sun, 23 Nov - Sat, 29 Nov
IST
Istanbul
SEA
Seattle
€583 Return, found 4 days ago
€583
Return
found 4 days ago
Select American Airlines flight, departing Sun, 23 Nov from Istanbul to Seattle, returning Sat, 29 Nov, priced at €583 found 4 days ago

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

February is typically the cheapest month to fly

From €414 - €1,047 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.