$131+ Cheap flights from Portland, ME to Seattle (PWM - SEA)
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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SEA
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Seattle
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Best
Last-minute
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Cheapest flights from Portland to SeattleExplore the most affordable flight options available from Portland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
Explore the most affordable flight options available from Portland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 5/14:50 pm
PWM
- SEA
1 stop10h 09m
United Airlines
Mon 5/410:53 pm
SEA
- PWM
1 stop8h 30m
United Airlines
Deal found 3/6![United Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 3/9. 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 5/12:51 pm
PWM
- SEA
1 stop10h 40m
Delta
Mon 5/411:59 pm
SEA
- PWM
2 stops12h 58m
Delta
Deal found 3/9![Delta logo]()
$266
This American Airlines deal was found by Cheapflights users on 3/6. 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 5/96:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Tue 5/191:19 pm
SEA
- PWM
1 stop7h 58m
American Airlines
Deal found 3/6![American Airlines logo]()
$273
This American Airlines deal was found by Cheapflights users on 3/8. 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 5/86:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Tue 5/191:19 pm
SEA
- PWM
1 stop7h 58m
American Airlines
Deal found 3/8![American Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 3/8. 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 5/23:40 pm
PWM
- SEA
2 stops11h 56m
American Airlines
Sat 5/910:47 pm
SEA
- PWM
1 stop8h 31m
American Airlines
Deal found 3/8![American Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/146:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Sat 4/1811:16 am
SEA
- PWM
1 stop9h 11m
American Airlines
Deal found 3/9![American Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 3/6. 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 5/136:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Tue 5/191:19 pm
SEA
- PWM
1 stop7h 58m
American Airlines
Deal found 3/6![American Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/287:07 am
PWM
- SEA
1 stop10h 20m
American Airlines
Sun 5/310:47 pm
SEA
- PWM
1 stop8h 36m
American Airlines
Deal found 3/7![American Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/153:39 pm
PWM
- SEA
2 stops11h 57m
American Airlines
Mon 4/2012:34 pm
SEA
- PWM
1 stop7h 53m
American Airlines
Deal found 3/8![American Airlines logo]()
$289
Best flights from Portland to SeattleDiscover carefully curated flight deals from Portland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from Portland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This United Airlines deal was found by Cheapflights users on 3/5. 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.
Sat 5/29:40 am
PWM
- SEA
2 stops11h 50m
United Airlines
Sat 5/910:41 pm
SEA
- PWM
1 stop8h 37m
United Airlines
Deal found 3/5![United Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 3/6. 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 5/14:43 pm
PWM
- SEA
2 stops10h 11m
Delta
Mon 5/411:59 pm
SEA
- PWM
2 stops12h 58m
Delta
Deal found 3/6![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Sat 5/305:15 am
PWM
- SEA
2 stops16h 32m
United Airlines
Wed 6/31:00 pm
SEA
- PWM
1 stop7h 51m
United Airlines
Deal found 3/8![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 4/246:33 pm
PWM
- SEA
1 stop9h 01m
United Airlines
Mon 4/277:37 pm
SEA
- PWM
2 stops11h 45m
United Airlines
Deal found 3/6![United Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 3/5. 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.
Thu 4/95:23 am
PWM
- SEA
2 stops16h 03m
Delta
Tue 4/1411:14 pm
SEA
- PWM
2 stops11h 57m
Delta
Deal found 3/5![Delta logo]()
$420
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Thu 4/302:08 pm
PWM
- SEA
2 stops14h 04m
United Airlines
Tue 5/510:52 am
SEA
- PWM
2 stops10h 07m
United Airlines
Deal found 3/6![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 3/5. 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 9/15:15 am
PWM
- SEA
2 stops13h 21m
United Airlines
Sat 9/126:00 pm
SEA
- PWM
2 stops12h 22m
United Airlines
Deal found 3/5![United Airlines logo]()
$373
Last-minute flights from Portland to SeattleDiscover last-minute flight deals from Portland to Seattle. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Seattle. Data last updated March 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Thu 3/124:23 pm
PWM
- SEA
1 stop9h 22m
United Airlines
Mon 3/1611:59 pm
SEA
- PWM
1 stop7h 50m
United Airlines
Deal found 3/6![United Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 3/9. 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 4/72:30 pm
PWM
- SEA
1 stop10h 54m
Delta
Mon 4/1311:59 pm
SEA
- PWM
2 stops12h 58m
Delta
Deal found 3/9![Delta logo]()
$266
This Delta deal was found by Cheapflights users on 3/9. 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 4/74:48 pm
PWM
- SEA
2 stops10h 15m
Delta
Tue 4/1411:14 pm
SEA
- PWM
2 stops11h 57m
Delta
Deal found 3/9![Delta logo]()
$271
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/96:00 am
PWM
- SEA
1 stop8h 34m
American Airlines
Tue 4/1410:29 pm
SEA
- PWM
1 stop9h 46m
American Airlines
Deal found 3/6![American Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/146:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Sat 4/1811:16 am
SEA
- PWM
1 stop9h 11m
American Airlines
Deal found 3/9![American Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/153:39 pm
PWM
- SEA
2 stops11h 57m
American Airlines
Mon 4/2012:34 pm
SEA
- PWM
1 stop7h 53m
American Airlines
Deal found 3/8![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 3/5. 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 4/216:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Tue 4/2812:34 pm
SEA
- PWM
1 stop7h 53m
American Airlines
Deal found 3/5![American Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/256:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Sat 5/210:47 pm
SEA
- PWM
1 stop8h 36m
American Airlines
Deal found 3/9![American Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/287:07 am
PWM
- SEA
1 stop10h 20m
American Airlines
Sun 5/310:47 pm
SEA
- PWM
1 stop8h 36m
American Airlines
Deal found 3/7![American Airlines logo]()
$288
One-way flights from Portland to SeattleSearch for one-way flight options from Portland to Seattle. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from Portland to Seattle. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This American Airlines deal was found by Cheapflights users on 3/5. 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 3/205:40 pm
PWM
- SEA
1 stop9h 44m
American Airlines
Deal found 3/5![American Airlines logo]()
$131
This Delta deal was found by Cheapflights users on 3/9. 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.
Sat 5/912:55 pm
PWM
- SEA
2 stops12h 01m
Delta
Deal found 3/9![Delta logo]()
$136
This American Airlines deal was found by Cheapflights users on 3/7. 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 5/96:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Deal found 3/7![American Airlines logo]()
$146
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Wed 4/153:22 pm
PWM
- SEA
1 stop11h 24m
United Airlines
Deal found 3/6![United Airlines logo]()
$181
This American Airlines deal was found by Cheapflights users on 3/9. 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 8/306:50 pm
PWM
- SEA
1 stop9h 11m
American Airlines
Deal found 3/9![American Airlines logo]()
$186
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 5/99:40 am
PWM
- SEA
3 stops16h 49m
United Airlines
Deal found 3/9![United Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 3/9. 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 8/306:10 am
PWM
- SEA
2 stops11h 50m
Southwest
Deal found 3/9![Southwest logo]()
$205
This American Airlines deal was found by Cheapflights users on 3/6. 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 8/66:50 pm
PWM
- SEA
1 stop9h 11m
American Airlines
Deal found 3/6![American Airlines logo]()
$213
This Southwest deal was found by Cheapflights users on 3/5. 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 8/55:45 am
PWM
- SEA
2 stops12h 15m
Southwest
Deal found 3/5![Southwest logo]()
$215
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/166:01 pm
PWM
- SEA
1 stop9h 35m
American Airlines
Deal found 3/6![American Airlines logo]()
$221
Find flight deals from Portland to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Seattle (SEA). 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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (United Airlines) |
One-way from | $131 (American Airlines) |
Popular in | March |
Cheapest in | April |
Average price | $665 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Seattle 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 March 10, 2026.
Use the filters below to find and compare flights from Portland to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 5/2
9:40 am-6:30 pm
2 stops11h 50m
Seattle/Tacoma Intl
Sat 5/9
10:41 pm-10:18 am
1 stop8h 37m
$266
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Fri 5/1
4:43 pm-11:54 pm
2 stops10h 11m
Seattle/Tacoma Intl
Mon 5/4
11:59 pm-3:57 pm
2 stops12h 58m
$271
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 5/30
5:15 am-6:47 pm
2 stops16h 32m
Seattle/Tacoma Intl
Wed 6/3
1:00 pm-11:51 pm
1 stop7h 51m
$366
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Fri 4/24
6:33 pm-12:34 am
1 stop9h 01m
Seattle/Tacoma Intl
Mon 4/27
7:37 pm-10:22 am
2 stops11h 45m
$366
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Thu 4/30
2:08 pm-1:12 am
2 stops14h 04m
Seattle/Tacoma Intl
Tue 5/5
10:52 am-11:59 pm
2 stops10h 07m
$372
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Tue 9/1
5:15 am-3:36 pm
2 stops13h 21m
Seattle/Tacoma Intl
Sat 9/12
6:00 pm-9:22 am
2 stops12h 22m
$373
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Thu 4/9
5:23 am-6:26 pm
2 stops16h 03m
Seattle/Tacoma Intl
Tue 4/14
11:14 pm-2:11 pm
2 stops11h 57m
$420
Cheapest one-way
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 5/9
2:05 pm-9:56 pm
1 stop10h 51m
$131
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 5/9
9:40 am-11:29 pm
3 stops16h 49m
$191
Quickest one-way
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Thu 8/6
6:50 pm-1:01 am
1 stop9h 11m
$213
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Portland to Seattle
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 Portland to Seattle in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Seattle 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 Portland, Maine-Seattle 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 Portland to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Portland with our price prediction graph.
PWM-SEA
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 Portland to Seattle
How far ahead should I book a flight from Portland, Maine to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Portland to Seattle. Price data was last updated on March 6, 2026.
The price you pay for your flight from Portland, Maine to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Portland, Maine to Seattle?
Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Seattle (average of $118). Flying from Portland, Maine to Seattle in January is currently the most expensive (average of $247). 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.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated March 10, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Portland to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Portland to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsTacoma
SeaTac
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Shoreline
Marysville
Centralia
Federal Way
Chehalis
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Alternative routes for Portland to Seattle
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Portland and Seattle flights
Browse other Portland and Seattle flight options. Last updated on March 10, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
Top 6 airlines flying from Portland to Seattle
Discover the top 6 airlines that operate flights from Portland to Seattle. 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$395 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$207 | Average$308 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$242 | Average$420 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$275 | Average$473 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$468 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$394 | Average$552 | FlexibilityNo cancel fee | On-time63% |