$183+ Cheap flights from Seattle to Portland, ME (SEA - PWM)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PWM
Aug 28 — Sep 41
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Portland with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Seattle to PortlandExplore the most affordable flight options available from Seattle to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
Explore the most affordable flight options available from Seattle to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:47 pm
SEA
- PWM
1 stop9h 16m
American Airlines
Sat 10/247:00 am
PWM
- SEA
1 stop10h 13m
American Airlines
Deal found 7/24![American Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:31 am
SEA
- PWM
1 stop10h 09m
American Airlines
Wed 10/146:00 am
PWM
- SEA
1 stop9h 09m
American Airlines
Deal found 7/25![American Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:50 pm
SEA
- PWM
1 stop8h 00m
Delta
Tue 11/34:15 pm
PWM
- SEA
1 stop9h 49m
Delta
Deal found 7/26![Delta logo]()
$380
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:10 pm
SEA
- PWM
1 stop9h 47m
Delta
Mon 11/24:47 pm
PWM
- SEA
1 stop8h 18m
Delta
Deal found 7/26![Delta logo]()
$385
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:25 pm
SEA
- PWM
2 stops11h 30m
Southwest
Tue 9/15:45 am
PWM
- SEA
2 stops12h 15m
Southwest
Deal found 7/25![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:05 am
SEA
- PWM
2 stops11h 54m
United Airlines
Sat 9/126:00 am
PWM
- SEA
1 stop8h 32m
United Airlines
Deal found 7/24![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:10 am
SEA
- PWM
2 stops11h 05m
Southwest
Tue 9/155:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Deal found 7/24![Southwest logo]()
$399
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:20 am
SEA
- PWM
1 stop13h 50m
Southwest
Mon 9/285:55 am
PWM
- SEA
2 stops10h 20m
Southwest
Deal found 7/24![Southwest logo]()
$405
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:15 am
SEA
- PWM
2 stops13h 41m
Delta
Tue 10/134:15 pm
PWM
- SEA
1 stop9h 49m
Delta
Deal found 7/27![Delta logo]()
$406
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:58 pm
SEA
- PWM
1 stop9h 33m
American Airlines
Tue 9/83:06 pm
PWM
- SEA
1 stop10h 50m
American Airlines
Deal found 7/26![American Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:50 pm
SEA
- PWM
1 stop8h 00m
Delta
Wed 11/44:47 pm
PWM
- SEA
1 stop8h 18m
Delta
Deal found 7/26![Delta logo]()
$415
Best flights from Seattle to PortlandDiscover carefully curated flight deals from Seattle to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from Seattle to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:25 pm
SEA
- PWM
2 stops11h 30m
Southwest
Tue 9/15:45 am
PWM
- SEA
2 stops12h 15m
Southwest
Deal found 7/25![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 am
SEA
- PWM
1 stop7h 42m
United Airlines
Mon 8/246:03 am
PWM
- SEA
1 stop8h 29m
United Airlines
Deal found 7/25![United Airlines logo]()
$502
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:20 am
SEA
- PWM
1 stop13h 50m
Southwest
Mon 9/285:55 am
PWM
- SEA
2 stops10h 20m
Southwest
Deal found 7/24![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:05 pm
SEA
- PWM
2 stops9h 40m
Southwest
Mon 9/285:55 am
PWM
- SEA
2 stops10h 20m
Southwest
Deal found 7/28![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:10 am
SEA
- PWM
2 stops10h 00m
Southwest
Sat 10/2412:45 pm
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 7/24![Southwest logo]()
$430
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am
SEA
- PWM
1 stop10h 22m
United Airlines
Fri 10/96:00 am
PWM
- SEA
2 stops12h 51m
United Airlines
Deal found 7/27![United Airlines logo]()
$530
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:35 pm
SEA
- PWM
2 stops12h 20m
Southwest
Tue 9/82:50 pm
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 7/28![Southwest logo]()
$445
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:30 pm
SEA
- PWM
1 stop8h 25m
Southwest
Thu 8/207:40 am
PWM
- SEA
1 stop13h 40m
Southwest
Deal found 7/28![Southwest logo]()
$445
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 pm
SEA
- PWM
1 stop8h 20m
Southwest
Sun 8/306:10 am
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 7/27![Southwest logo]()
$456
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:40 am
SEA
- PWM
2 stops11h 35m
Southwest
Sun 9/276:10 am
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 7/27![Southwest logo]()
$461
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:30 pm
SEA
- PWM
1 stop8h 25m
Southwest
Sun 9/276:10 am
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 7/24![Southwest logo]()
$507
Last-minute flights from Seattle to PortlandDiscover last-minute flight deals from Seattle to Portland. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Portland. Data last updated July 29, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:30 pm
SEA
- PWM
1 stop8h 25m
Southwest
Wed 8/265:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Deal found 7/28![Southwest logo]()
$435
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:19 am
SEA
- PWM
1 stop9h 29m
American Airlines
Wed 8/263:06 pm
PWM
- SEA
1 stop10h 50m
American Airlines
Deal found 7/26![American Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:30 pm
SEA
- PWM
1 stop8h 25m
Southwest
Tue 9/15:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Deal found 7/25![Southwest logo]()
$380
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:30 pm
SEA
- PWM
1 stop8h 25m
Southwest
Thu 8/277:40 am
PWM
- SEA
1 stop13h 40m
Southwest
Deal found 7/25![Southwest logo]()
$425
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:50 pm
SEA
- PWM
1 stop7h 51m
American Airlines
Sun 8/305:30 am
PWM
- SEA
1 stop9h 20m
American Airlines
Deal found 7/27![American Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:25 am
SEA
- PWM
1 stop8h 16m
American Airlines
Tue 9/11:25 pm
PWM
- SEA
1 stop11h 34m
American Airlines
Deal found 7/24![American Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:00 pm
SEA
- PWM
2 stops10h 45m
Southwest
Tue 9/15:45 am
PWM
- SEA
2 stops12h 15m
Southwest
Deal found 7/24![Southwest logo]()
$430
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:15 am
SEA
- PWM
1 stop10h 12m
American Airlines
Wed 9/23:06 pm
PWM
- SEA
1 stop10h 50m
American Airlines
Deal found 7/24![American Airlines logo]()
$419
One-way flights from Seattle to PortlandSearch for one-way flight options from Seattle to Portland. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from Seattle to Portland. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:24 am
SEA
- PWM
1 stop10h 49m
American Airlines
Deal found 7/24![American Airlines logo]()
$183
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:59 pm
SEA
- PWM
1 stop7h 46m
Delta
Deal found 7/24![Delta logo]()
$188
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:59 am
SEA
- PWM
1 stop9h 48m
American Airlines
Deal found 7/28![American Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:35 pm
SEA
- PWM
2 stops12h 20m
Southwest
Deal found 7/24![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:25 pm
SEA
- PWM
2 stops11h 30m
Southwest
Deal found 7/25![Southwest logo]()
$212
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:10 am
SEA
- PWM
1 stop11h 03m
Delta
Deal found 7/27![Delta logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:34 am
SEA
- PWM
3 stops46h 07m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$230
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:00 am
SEA
- PWM
1 stop10h 52m
American Airlines
Deal found 7/24![American Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:57 am
SEA
- PWM
3 stops26h 37m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$234
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3011:05 pm
SEA
- PWM
2 stops10h 20m
Southwest
Deal found 7/27![Southwest logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:37 pm
SEA
- PWM
3 stops44h 32m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$238
Find flight deals from Seattle to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (Delta) |
One-way from | $183 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $563 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
Use the filters below to find and compare flights from Seattle to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Mon 8/24
7:25 pm-9:55 am
2 stops11h 30m
Portland
Tue 9/1
5:45 am-3:00 pm
2 stops12h 15m
$390
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Tue 9/22
5:20 am-10:10 pm
1 stop13h 50m
Portland
Mon 9/28
5:55 am-1:15 pm
2 stops10h 20m
$405
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Fri 9/25
11:05 pm-11:45 am
2 stops9h 40m
Portland
Mon 9/28
5:55 am-1:15 pm
2 stops10h 20m
$430
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Sat 10/10
9:10 am-10:10 pm
2 stops10h 00m
Portland
Sat 10/24
12:45 pm-9:35 pm
2 stops11h 50m
$430
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Tue 9/1
6:35 pm-9:55 am
2 stops12h 20m
Portland
Tue 9/8
2:50 pm-11:40 pm
2 stops11h 50m
$445
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Tue 8/18
10:30 pm-9:55 am
1 stop8h 25m
Portland
Thu 8/20
7:40 am-6:20 pm
1 stop13h 40m
$445
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Thu 8/27
10:30 pm-9:50 am
1 stop8h 20m
Portland
Sun 8/30
6:10 am-3:00 pm
2 stops11h 50m
$456
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Wed 9/23
6:40 am-9:15 pm
2 stops11h 35m
Portland
Sun 9/27
6:10 am-3:00 pm
2 stops11h 50m
$461
Quickest round-trip
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Mon 8/17
7:00 am-5:42 pm
1 stop7h 42m
Portland
Mon 8/24
6:03 am-11:32 am
1 stop8h 29m
$502
SeattlePortland
SEA - PWM
SEAPWM
Seattle/Tacoma Intl
Fri 9/25
10:30 pm-9:55 am
1 stop8h 25m
Portland
Sun 9/27
6:10 am-3:00 pm
2 stops11h 50m
$507
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Portland in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Seattle with our price prediction graph.
SEA-PWM
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Portland
How far ahead should I book a flight from Seattle to Portland, Maine?
The best time to book flights from Seattle to Portland, Maine is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $320). Flying from Seattle to Portland, Maine in December is currently the most expensive (average of $863). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Portland, Maine?
Airfare is below average for this route at the moment.
Seattle to Portland, Maine flights typically cost between $438 and $678 in October.The cheapest round-trip price found within the last 5 days was $375 on American Airlines (Oct 7-Oct 14).
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated July 29, 2026.
Read through reviews of airlines operating flights from Seattle to Portland, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Seattle to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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Find flights from Seattle to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Portland flights
Browse other Seattle and Portland flight options. Last updated on July 29, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2026.
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Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2026.
Top 5 airlines flying from Seattle to Portland
Discover the top 5 airlines that operate flights from Seattle to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$221 | Average$532 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$284 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$274 | Average$506 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$280 | Average$503 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$390 | Average$621 | FlexibilityNo cancel fee | On-time63% |