PWM - SEA

$165 Find Cheap Flights from Portland to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$329
Typical prices: $358-$606
American Airlines
Sat 12/8Fri 12/14
PWM - SEA • 1 stop
Cheapest one-way
$165
Typical prices: $196-$397
United Airlines
Mon 11/26
PWM - SEA • 1 stop
Nonstop 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 travelers 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 $399 (round-trip)
Denver Intl (DEN)
Shortest trip • 8h 16m (one-way)
Insights
Insights
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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, Dec 8 - Mon, Dec 14
American Airlines Logo
12:15 pm - 8:31 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
11:39 pm - 11:42 amSEA  Seattle/Tacoma Intl-PWM Portland
9h 03m1 stop Chicago O'Hare Intl
$329American Airlines
Tue, Dec 8 - Mon, Dec 14
Delta Logo
6:00 am - 2:36 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 36m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:15 pm - 11:57 amSEA  Seattle/Tacoma Intl-PWM Portland
9h 42m1 stop Detroit Metropolitan Wayne County
$329Delta
Thu, Nov 26 - Thu, Dec 3
Delta Logo
6:00 am - 2:30 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 30m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:55 am - 12:21 amSEA  Seattle/Tacoma Intl-PWM Portland
9h 26m1 stop New York John F Kennedy Intl
$329Delta
Thu, Nov 26 - Thu, Dec 3
Southwest Logo
5:15 am - 4:50 pmPWM  Portland-SEA Seattle/Tacoma Intl
14h 35m2 stops Baltimore/Washington Sacramento Intl
Southwest Logo
6:30 pm - 9:50 amSEA  Seattle/Tacoma Intl-PWM Portland
12h 20m2 stops San Diego Baltimore/Washington
$389Southwest
Tue, Dec 8 - Sun, Dec 13
Southwest Logo
12:45 pm - 11:35 pmPWM  Portland-SEA Seattle/Tacoma Intl
13h 50m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
9:10 am - 11:55 pmSEA  Seattle/Tacoma Intl-PWM Portland
11h 45m2 stops Denver Intl Baltimore/Washington
$395Southwest
Tue, Dec 8 - Mon, Dec 14
American Airlines Logo
12:15 pm - 8:31 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
11:39 pm - 11:42 amSEA  Seattle/Tacoma Intl-PWM Portland
9h 03m1 stop Chicago O'Hare Intl
$397American Airlines
Tue, Dec 8 - Sun, Dec 13
United Airlines Logo
9:51 am - 6:46 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 am - 7:25 pmSEA  Seattle/Tacoma Intl-PWM Portland
9h 25m1 stop Newark
$434United Airlines
Wed, Mar 31 - Mon, Apr 5
United Airlines Logo
4:48 pm - 10:29 pmPWM  Portland-SEA Seattle/Tacoma Intl
8h 41m1 stop Chicago O'Hare Intl
United Airlines Logo
7:10 pm - 8:19 amSEA  Seattle/Tacoma Intl-PWM Portland
10h 09m2 stops Denver Intl Newark
$444United Airlines
Mon, Dec 7 - Sun, Dec 13
Alaska Airlines Logo
5:00 am - 4:32 pmPWM  Portland-SEA Seattle/Tacoma Intl
14h 32m2 stops Washington, D.C. Reagan-National Los Angeles
Alaska Airlines Logo
8:00 am - 11:31 pmSEA  Seattle/Tacoma Intl-PWM Portland
12h 31m2 stops Los Angeles Washington, D.C. Reagan-National
$795Alaska Airlines
Wed, Nov 11 - Sat, Nov 14
Alaska Airlines Logo
12:13 pm - 8:13 pmPWM  Portland-SEA Seattle/Tacoma Intl
11h 00m1 stop Washington, D.C. Reagan-National
Alaska Airlines Logo
8:00 am - 9:39 pmSEA  Seattle/Tacoma Intl-PWM Portland
10h 39m1 stop Washington, D.C. Reagan-National
$829Alaska Airlines
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 $358 to $606. The lowest price found in the past 5 days was $329, on American Airlines.

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’s the cheapest month to fly from Portland to Seattle?

•May and November are the cheapest months to fly from Portland to Seattle at $375 round-trip.
•June ($681) and August ($645) 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

$165
Beat the crowds with an average 62% drop in travelers.
The most popular month to fly with an average 67% increase in travelers.
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.

  • What cabin classes can I book on flights from Portland to Seattle?

    Two cabin classes are available on flights from Portland to Seattle:

    • Economy Class
    • First Class

  • How long is a flight from Portland to Seattle?

    A nonstop flight from Portland to Seattle takes 00m, covering 2,481 miles.

  • 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 a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

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

    Round-trip flights from Portland to Seattle range from $358 to $606, with an average of $451 over the past 12 months. Anything below $358 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 $451 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 $329 to $1,221. 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 $239, which is 17% 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 $61 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 $364 round-trip on average, while Sunday is the most expensive at $663, a difference of $299.

    KAYAK's flexible dates feature shows options up to 3 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 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.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. 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 $364, about $299 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 $375 round-trip in that month - typically $306 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