PWM - SEA

C$ 231 Find Cheap Flights from Portland to Seattle – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 460
Typical prices: C$ 501-C$ 847
Delta
Sat 8/12Fri 14/12
PWM - SEA • 1 stop
Cheapest one-way flights
C$ 231
Typical prices: C$ 275-C$ 555
United Airlines
Mon 26/11
PWM - SEA • 1 stop
Direct flights
Not available
There are currently no direct flights between Portland and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
25 weeks
in advance
Our data shows that travellers who book at least 25 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 17% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg C$ 557 (round-trip)
Denver Intl (DEN)
Shortest trip • 8h 16m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Seattle (PWM-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Seattle

Tue, 8 Dec - Mon, 14 Dec
Delta Logo
6:00 a.m. - 2:36 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
11h 36m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:15 p.m. - 11:57 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 42m1 stop Detroit Metropolitan Wayne County
C$ 460Delta
Tue, 8 Dec - Mon, 14 Dec
Delta Logo
6:12 a.m. - 3:03 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
11h 51m2 stops New York LaGuardia Detroit Metropolitan Wayne County
Delta Logo
11:15 p.m. - 11:57 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 42m1 stop Detroit Metropolitan Wayne County
C$ 467Delta
Sun, 6 Dec - Tue, 8 Dec
Delta Logo
4:00 p.m. - 11:09 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
10h 09m1 stop New York John F Kennedy Intl
Delta Logo
11:15 p.m. - 11:57 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 42m1 stop Detroit Metropolitan Wayne County
C$ 537Delta
Thu, 26 Nov - Thu, 3 Dec
Southwest Logo
5:15 a.m. - 4:50 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
14h 35m2 stops Baltimore/Washington Sacramento Intl
Southwest Logo
6:30 p.m. - 9:50 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
12h 20m2 stops San Diego Baltimore/Washington
C$ 544Southwest
Tue, 8 Dec - Tue, 15 Dec
Delta Logo
12:49 p.m. - 6:43 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
8h 54m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:55 a.m. - 12:21 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 26m1 stop New York John F Kennedy Intl
C$ 552Delta
Mon, 7 Dec - Sat, 12 Dec
Delta Logo
4:53 p.m. - 10:03 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:55 a.m. - 12:21 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 26m1 stop New York John F Kennedy Intl
C$ 555Delta
Wed, 9 Dec - Wed, 16 Dec
Delta Logo
6:00 a.m. - 4:55 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
13h 55m2 stops New York John F Kennedy Intl Salt Lake City
Delta Logo
11:55 a.m. - 12:21 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 26m1 stop New York John F Kennedy Intl
C$ 559Delta
Sun, 6 Dec - Tue, 8 Dec
Southwest Logo
1:40 p.m. - 11:05 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
12h 25m2 stops Baltimore/Washington Denver Intl
Southwest Logo
6:30 p.m. - 9:50 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
12h 20m2 stops San Diego Baltimore/Washington
C$ 561Southwest
Tue, 8 Dec - Mon, 14 Dec
Delta Logo
6:12 a.m. - 3:03 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
11h 51m2 stops New York LaGuardia Detroit Metropolitan Wayne County
Delta Logo
11:15 p.m. - 11:57 a.m.SEA  Seattle/Tacoma Intl-PWM Portland
9h 42m1 stop Detroit Metropolitan Wayne County
C$ 562Delta
Mon, 7 Dec - Mon, 14 Dec
Delta Logo
4:53 p.m. - 10:03 p.m.PWM  Portland-SEA Seattle/Tacoma Intl
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:37 p.m. - 4:11 p.m.SEA  Seattle/Tacoma Intl-PWM Portland
13h 34m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County
C$ 565Delta
Booking Insights

Price, demand, and travel trends for Portland to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Portland to Seattle?

Round-trip flights from Portland to Seattle typically range from C$ 501 to C$ 847. The lowest price found in the past 5 days was C$ 460, on Delta.

What's the cheapest day of the week to fly from Portland to Seattle?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Portland to Seattle. It's 20% cheaper than the average day, while Sunday is the most expensive, with prices 47% higher.

What is the cheapest month to fly from Portland to Seattle?

•May and November are the cheapest months to fly from Portland to Seattle at C$ 524 round-trip.
•June (C$ 952) and August (C$ 902) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 81% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Portland to Seattle the cheapest?

Flights from Portland to Seattle are cheapest 25 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Portland to Seattle flights

Low season

February

Cheapest flight

C$ 231
Beat the crowds with an average 62% drop in traveller numbers.
The most popular month to fly with an average 67% increase in traveller numbers.
One-way flight from Portland to Seattle

When to book flights from Portland to Seattle

Are your dates flexible? Find out the best times to travel from Portland to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Portland to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long does a flight from Portland to Seattle take?

    A direct flight from Portland to Seattle takes 00m, covering 6,425 km.

  • Do I need a passport to fly from Portland to Seattle?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driver's licence.

  • How much should I expect to pay for a Portland to Seattle flight?

    Round-trip flights from Portland to Seattle range from C$ 501 to C$ 847, with an average of C$ 630 over the past 12 months. Anything below C$ 501 counts as a good deal.

  • How expensive are last-minute Portland to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 3% above the C$ 630 route average. Book 25 weeks before departure for the lowest fares.

  • Have flight prices from Portland to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 460 to C$ 1,725. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Portland to Seattle looking right now?

    One-way fares from Portland to Seattle are currently lower than usual. Average one-way flight prices are about C$ 303, which is 24% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Portland to Seattle?

    Flights from Portland to Seattle usually depart from Portland (PWM) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Portland to Seattle pass through?

    One-stop flights from Portland to Seattle most commonly connect through:

    • Chicago O'Hare Intl (ORD) – 27% of one-stop connections
    • Philadelphia (PHL) – 23% of one-stop connections
    • New York John F Kennedy Intl (JFK) – 10% of one-stop connections
    • Charlotte Douglas (CLT) – 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Portland to Seattle?

    Yes. Flexible dates can save you up to 46% on flights from Portland to Seattle. Tuesday is the cheapest departure day at C$ 509 round-trip on average, while Sunday is the most expensive at C$ 927, a difference of C$ 418.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport when travelling from Portland to Seattle?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 8h 16m, compared with 8h 17m via Washington, D.C. Dulles Intl (IAD) and 8h 19m via Detroit Metropolitan Wayne County (DTW).

  • What is the time difference between Portland and Seattle?

    Seattle is 3 hours behind Portland (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Portland to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average C$ 509, about C$ 418 less than Sunday fares (45% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Portland to Seattle trip for May. Fares historically average C$ 524 round-trip in that month – typically C$ 428 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Portland to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle