Portland (PDX) to Seattle (SEA) flights
2 airlines fly nonstop from Portland (PDX) to Seattle (SEA): Alaska Airlines and Delta Air Lines. The two airports are 129 miles (207 km) apart. Alaska Airlines is in oneworld and Delta Air Lines is in SkyTeam. There are also 13 ways to fly it with one stop, through Wenatchee, Bellingham and Eugene and more.
Airlines flying nonstop from PDX to SEA
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
Book PDX to SEA with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines
- Air France-KLM Flying BlueBooks Delta Air Lines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- China Eastern Eastern MilesBooks Delta Air Lines
- Delta SkyMilesBooks Delta Air Lines
- Finnair PlusBooks Alaska Airlines
- Garuda Indonesia GarudaMilesBooks Delta Air Lines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- Korean Air SKYPASSBooks Delta Air Lines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- SAS EuroBonusBooks Delta Air Lines
- Virgin Atlantic Flying ClubBooks Delta Air Lines
PDX to SEA with one stop
13 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Wenatchee (EAT)Alaska Airlines the whole way
- Via Bellingham (BLI)Alaska Airlines the whole way
- Via Eugene (EUG)Alaska Airlines the whole way
- Via Redmond (RDM)Alaska Airlines the whole way
- Via Pasco (PSC)Alaska Airlines the whole way
- Via Vancouver (YVR)Air Canada and Alaska Airlines the whole way
- Via Spokane (GEG)Alaska Airlines the whole way
- Via Medford (MFR)Alaska Airlines the whole way
- Via Boise (BOI)Alaska Airlines the whole way
- Via Missoula (MSO)Alaska Airlines the whole way
- Via Kalispell (FCA)Alaska Airlines the whole way
- Via Calgary (YYC)WestJet the whole way
- Via Reno (RNO)Alaska Airlines the whole way
PDX to SEA: common questions
Which airlines fly nonstop from PDX to SEA?
Alaska Airlines (oneworld) and Delta Air Lines (SkyTeam) fly nonstop from Portland (PDX) to Seattle (SEA).
How far is Portland from Seattle by plane?
Portland (PDX) and Seattle (SEA) are 129 miles (207 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book PDX to SEA award flights?
17 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air France-KLM Flying Blue, Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, China Eastern Eastern Miles, Delta SkyMiles and 9 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does PDX 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 PDX to SEA with taxes and fees.
Where can I connect between Portland and Seattle?
The most direct connections are through Wenatchee (EAT), Bellingham (BLI), Eugene (EUG), Redmond (RDM) and Pasco (PSC). On 13 of them the same airline flies both flights, for example Alaska Airlines through Wenatchee.
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.