Istanbul (IST) to Seattle (SEA) flights
One airline flies nonstop from Istanbul (IST) to Seattle (SEA): Turkish Airlines. The two airports are 6,057 miles (9,747 km) apart. Turkish Airlines is in Star Alliance. There are also 37 ways to fly it with one stop, through Copenhagen, Vancouver and Helsinki and more.
Airlines flying nonstop from IST to SEA
- Turkish AirlinesStar Alliance · bookable with 11 programsWho books it
Book IST to SEA with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks Turkish Airlines
- Air New Zealand AirpointsBooks Turkish Airlines
- ANA Mileage ClubBooks Turkish Airlines
- Avianca LifeMilesBooks Turkish Airlines
- EVA Air Infinity MileageLandsBooks Turkish Airlines
- Lufthansa Miles & MoreBooks Turkish Airlines
- Singapore Airlines KrisFlyerBooks Turkish Airlines
- TAP Miles&GoBooks Turkish Airlines
- Thai Royal Orchid PlusBooks Turkish Airlines
- Turkish Airlines Miles&SmilesBooks Turkish Airlines
- United MileagePlusBooks Turkish Airlines
IST to SEA with one stop
37 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Copenhagen (CPH)Turkish Airlines, then Scandinavian Airlines
- Via Vancouver (YVR)Turkish Airlines, then Air Canada, Alaska Airlines and 1 more
- Via Helsinki (HEL)Turkish Airlines, then Finnair
- Via Amsterdam (AMS)KLM and Turkish Airlines, then Delta Air Lines
- Via Munich (MUC)Lufthansa the whole way
- Via Frankfurt (FRA)Lufthansa the whole way
- Via London (LHR)British Airways the whole way
+1 - Via Dublin (DUB)Turkish Airlines, then Aer Lingus
- Via Paris (CDG)Air France the whole way
- Via Athens (ATH)Aegean Airlines, Turkish Airlines and 1 more, then Alaska Airlines
GQ - Via Rome (FCO)Turkish Airlines, then Delta Air Lines and Alaska Airlines
- Via Barcelona (BCN)Turkish Airlines and Vueling, then Delta Air Lines
- Via Montreal (YUL)Turkish Airlines and Air Transat, then Air Canada
- Via Toronto (YYZ)Turkish Airlines and Air Transat, then Air Canada and Alaska Airlines
- Via Denver (DEN)Turkish Airlines, then Alaska Airlines, Delta Air Lines and 4 more+3
IST to SEA: common questions
Which airlines fly nonstop from IST to SEA?
Turkish Airlines (Star Alliance) flies nonstop from Istanbul (IST) to Seattle (SEA).
How far is Istanbul from Seattle by plane?
Istanbul (IST) and Seattle (SEA) are 6,057 miles (9,747 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IST to SEA award flights?
11 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer, TAP Miles&Go and 3 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IST to SEA cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IST to SEA with taxes and fees.
Where can I connect between Istanbul and Seattle?
The most direct connections are through Copenhagen (CPH), Vancouver (YVR), Helsinki (HEL), Amsterdam (AMS) and Munich (MUC). On 8 of them the same airline flies both flights, for example Lufthansa through Munich.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.