Cheap flights from Portland to Seattle

Portland
PDX
Seattle-Tacoma
SEA

Flight deals from Portland to Seattle

Below you can see the best deals on flights Portland — Seattle for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 5 October, from $97.

Top 10 cheap flights from Portland to Seattle

AS
AS
$ 126

Portland — Seattle

14:42—21:40
12 Sep 2026
6 h 58 m
1 stop
AS
AS
$ 126

Portland — Seattle

10:37—17:39
12 Sep 2026
7 h 2 m
1 stop
AS
AS
$ 126

Portland — Seattle

14:40—22:00
12 Sep 2026
7 h 20 m
1 stop
AS
AS
$ 126

Portland — Seattle

10:37—15:58
15 Sep 2026
5 h 21 m
1 stop
AS
AS
$ 126

Portland — Seattle

14:42—20:32
15 Sep 2026
5 h 50 m
1 stop
AS
AS
$ 126

Portland — Seattle

07:03—12:51
15 Sep 2026
5 h 48 m
1 stop
AS
AS
$ 126

Portland — Seattle

14:42—21:40
15 Sep 2026
6 h 58 m
1 stop
AS
AS
$ 126

Portland — Seattle

10:37—17:39
15 Sep 2026
7 h 2 m
1 stop
AS
AS
$ 126

Portland — Seattle

14:40—22:00
15 Sep 2026
7 h 20 m
1 stop
DL
$ 128

Portland — Seattle

09:51—11:03
15 Sep 2026
1 h 12 m
Direct flight

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Portland — Seattle flight

Looking for cheap flights from Portland to Seattle? Compare fares from different airlines, check the flight schedule and travel time — and book your Portland — Seattle ticket online at the best price.

The route has direct flights — around 375 flights per week, flights are operated by Alaska Airlines, Delta, British Airways, Icelandair and 2 more airlines, a nonstop flight takes about 53 min, the distance between the cities is around 234 km.

Planning your trip? You may find our Seattle travel guide, how to get from the airport into town and Seattle weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $97Min. price
OctoberCheapest
AugustPeak season
YesDirect flights
234 kmDistance
53 minTravel time
6Airlines
375 / wkFlights

Flight schedule from Portland to Seattle

The table shows direct flights from Portland to Seattle on the selected date. The flight takes approximately 53 min. Regular flights are operated by Alaska Airlines, Delta, British Airways and Icelandair. Departures from Portland International Airport airports, arrivals at Seattle-Tacoma International Airport and Paine Field.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 16 Aug 2026

Flight ticket prices by day: Portland — Seattle

Below is a calendar of the lowest flight ticket prices for Portland — Seattle by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $97 in October, and the most expensive are around $205 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Portland to Seattle by month. Tickets are usually cheapest in January (around $79) and priciest in July (about $116) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$79lowMay$98mediumSep$102medium
Feb$84lowJun$112highOct$107high
Mar$98mediumJul$116highNov$98medium
Apr$84lowAug$112highDec$88medium

Some values are estimated based on seasonality.

When to fly

Weather in Seattle: it is warmest in August (up to 25 °C on average) and coolest in December (around 8 °C). The driest month is July.

Tickets are usually cheapest in October and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Seattle

Dry and wet days · Seattle

Wind speed and direction · Seattle

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How to get the best deal on a Portland — Seattle ticket

  • Book ahead: fares for Portland — Seattle are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Seattle is usually October — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Portland — Seattle route are operated by 6 airlines; Alaska Airlines runs the most flights (around 69% of all flights). Compare carriers, flight shares and schedules below.

  • Alaska AirlinesAS
    86x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight PDX → SEA77x/week
      Duration
      1h
      Days
      MTWTFSS
    • Direct flight PDX → PAE9x/week
      Duration
      59m
      Days
      MTWTFSS
    68.8%Open →
  • DeltaDL
    27x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight PDX → SEA27x/week
      Duration
      1h 10m
      Days
      MTWTFSS
    21.3%Open →
  • British AirwaysBA
    6x/week
    WebsiteFleet: 29243M pax/year
    • Direct flight PDX → SEA6x/week
      Duration
      59m
      Days
      MTWTFSS
    5.1%Open →
  • IcelandairFI
    3x/week
    WebsiteFleet: 524.7M pax/year
    • Direct flight PDX → SEA3x/week
    2.7%Open →
  • Korean AirKE
    2x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight PDX → SEA2x/week
      Duration
      1h 16m
      Days
      MTWTFSS
    1.3%Open →
  • CondorDE
    1x/week
    WebsiteFleet: 508.5M pax/year
    • Direct flight PDX → SEA1x/week
      Duration
      1h 1m
      Days
      MTWTFSS
    0.8%Open →

Cities and airports on the Portland — Seattle route

Flights Portland — Seattle depart from Portland International Airport and arrive at Seattle-Tacoma International Airport and Paine Field. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Portland

PDX
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Portland — Seattle flight

How long is the flight from Portland to Seattle?

A nonstop Portland — Seattle flight takes about 53 min — the distance between the cities is around 234 km.

How far is it from Portland to Seattle?

The distance from Portland to Seattle is about 234 km, which a nonstop flight covers in around 53 min.

Are there direct flights from Portland to Seattle?

Yes, there are nonstop flights Portland — Seattle — around 375 flights per week.

Which airlines fly from Portland to Seattle?

Airlines operating Portland — Seattle include Alaska Airlines, Delta, British Airways, Icelandair, Korean Air. See the full list with schedules in the "Airlines" section on this page.

Which airports do Portland — Seattle flights use?

Flights from Portland depart from Portland International Airport, and arrive at Seattle-Tacoma International Airport, Paine Field. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Portland to Seattle?

The price of a Portland — Seattle ticket depends on your travel date, season and demand: it is usually cheapest to fly in October, and most expensive in August. Tickets typically cost between $97 and $205. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Portland — Seattle?

Flights Portland — Seattle are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is October. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Portland to Seattle?

To catch a low fare Portland — Seattle, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually October.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Portland

See all
Los AngelesSan FranciscoDenverSalt Lake CityChicagoSan JoseNew York CitySan DiegoPhoenixAnchorageLas VegasBoiseVancouverMinneapolisSanta AnaSpokaneSacramentoRedmondSanta RosaHonoluluMedfordDallasAtlantaFresnoOaklandEugeneBurbankBostonRenoPascoWashington, D.C.HoustonAustinPhiladelphiaMissoulaCharlotteBozemanFairbanksPalm SpringsCalgary

Where else you can fly from Seattle

See all
Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokaneSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoBurbankAustinFairbanksEugeneJuneauNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlandoVictoria

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