$108+ Cheap flights from Portland to Seattle (PDX - 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEA
Jun 2 — Jun 91
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Seattle with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Portland to Seattle/Tacoma Intl are usually found in January or December, booked 55 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
Cheap flight deals from Portland to Seattle
Cheapest
Best
Last-minute
One-way
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 May 3, 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 May 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/235:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Tue 5/267:05 am
SEA
- PDX
Nonstop0h 57m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 4/29. 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 5/237:05 am
PDX
- SEA
Nonstop1h 15m
Delta
Sat 5/308:15 pm
SEA
- PDX
Nonstop1h 03m
Delta
Deal found 4/29![Delta logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Thu 5/215:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Sat 5/238:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:44 am
PDX
- SEA
Nonstop0h 58m
Alaska Airlines
Fri 5/298:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Fri 5/225:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Mon 5/257:05 am
SEA
- PDX
Nonstop0h 57m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$216
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Thu 5/283:50 pm
SEA
- PDX
Nonstop1h 00m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Wed 5/205:50 pm
PDX
- SEA
Nonstop1h 08m
Alaska Airlines
Wed 5/278:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$221
This Delta deal was found by Cheapflights users on 5/1. 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 5/307:05 am
PDX
- SEA
Nonstop1h 15m
Delta
Wed 6/107:30 am
SEA
- PDX
Nonstop1h 09m
Delta
Deal found 5/1![Delta logo]()
$222
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:20 am
PDX
- SEA
Nonstop1h 18m
Delta
Sun 5/249:30 am
SEA
- PDX
Nonstop1h 10m
Delta
Deal found 4/28![Delta logo]()
$227
This Delta deal was found by Cheapflights users on 4/29. 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 6/812:23 pm
PDX
- SEA
Nonstop1h 11m
Delta
Mon 6/228:59 pm
SEA
- PDX
Nonstop1h 03m
Delta
Deal found 4/29![Delta logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Wed 5/278:45 am
SEA
- PDX
Nonstop1h 02m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$237
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 May 3, 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 May 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Mon 6/223:55 pm
SEA
- PDX
Nonstop1h 00m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1412:23 pm
PDX
- SEA
Nonstop1h 11m
Delta
Mon 10/52:00 pm
SEA
- PDX
Nonstop1h 06m
Delta
Deal found 4/28![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 5/1. 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 7/1812:23 pm
PDX
- SEA
Nonstop1h 11m
Delta
Sat 7/2510:35 am
SEA
- PDX
Nonstop1h 06m
Delta
Deal found 5/1![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 5/2. 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 6/125:50 pm
PDX
- SEA
Nonstop1h 15m
Delta
Sat 6/209:30 am
SEA
- PDX
Nonstop1h 09m
Delta
Deal found 5/2![Delta logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:44 pm
PDX
- SEA
1 stop4h 45m
Alaska Airlines
Wed 5/277:00 am
SEA
- PDX
1 stop6h 50m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 4/29. 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 6/139:30 am
PDX
- SEA
Nonstop1h 25m
Delta
Sat 6/2010:35 am
SEA
- PDX
Nonstop1h 07m
Delta
Deal found 4/29![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 4/30. 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 5/197:05 am
PDX
- SEA
Nonstop1h 15m
Delta
Sat 5/237:30 am
SEA
- PDX
Nonstop1h 07m
Delta
Deal found 4/30![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/302:30 pm
PDX
- SEA
1 stop6h 05m
Alaska Airlines
Thu 7/3011:26 pm
SEA
- PDX
Nonstop0h 56m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$336
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:19 am
PDX
- SEA
Nonstop0h 55m
Alaska Airlines
Tue 7/2111:37 am
SEA
- PDX
1 stop5h 14m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:19 am
PDX
- SEA
Nonstop0h 55m
Alaska Airlines
Thu 7/2311:37 am
SEA
- PDX
1 stop5h 14m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$340
Last-minute flights from Portland to SeattleDiscover last-minute flight deals from Portland to Seattle. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Seattle. Data last updated May 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Wed 5/205:50 pm
PDX
- SEA
Nonstop1h 08m
Alaska Airlines
Wed 5/278:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Thu 5/215:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Wed 5/278:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Mon 5/258:45 am
SEA
- PDX
Nonstop1h 02m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Fri 5/225:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Mon 5/257:05 am
SEA
- PDX
Nonstop0h 57m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/235:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Tue 5/267:05 am
SEA
- PDX
Nonstop0h 57m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 4/29. 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 5/237:05 am
PDX
- SEA
Nonstop1h 15m
Delta
Sat 5/308:15 pm
SEA
- PDX
Nonstop1h 03m
Delta
Deal found 4/29![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:44 am
PDX
- SEA
Nonstop0h 58m
Alaska Airlines
Fri 5/298:30 pm
SEA
- PDX
Nonstop0h 58m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:20 am
PDX
- SEA
Nonstop1h 18m
Delta
Sun 5/249:30 am
SEA
- PDX
Nonstop1h 10m
Delta
Deal found 4/28![Delta logo]()
$227
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:44 am
PDX
- SEA
Nonstop0h 56m
Alaska Airlines
Sat 5/307:25 pm
SEA
- PDX
Nonstop0h 56m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Wed 5/278:45 am
SEA
- PDX
Nonstop1h 02m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 5/1. 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 5/307:05 am
PDX
- SEA
Nonstop1h 15m
Delta
Wed 6/107:30 am
SEA
- PDX
Nonstop1h 09m
Delta
Deal found 5/1![Delta logo]()
$222
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 May 3, 2026.
Search for one-way flight options from Portland to Seattle. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 5/2812:35 pm
PDX
- SEA
1 stop21h 31m
Frontier
Deal found 4/27![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/612:35 pm
PDX
- SEA
1 stop21h 31m
Frontier
Deal found 4/30![Frontier logo]()
$111
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
PDX
- SEA
Nonstop1h 02m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 5/295:31 pm
PDX
- SEA
1 stop25h 04m
Frontier
Deal found 5/1![Frontier logo]()
$121
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:20 pm
PDX
- SEA
Nonstop1h 05m
Delta
Deal found 4/28![Delta logo]()
$129
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:20 pm
PDX
- SEA
Nonstop1h 05m
Delta
Deal found 4/28![Delta logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:51 pm
PDX
- SEA
1 stop5h 08m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Sun 6/288:42 pm
PDX
- SEA
1 stop13h 53m
Frontier
Deal found 4/30![Frontier logo]()
$146
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:44 pm
PDX
- SEA
1 stop4h 45m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Mon 5/118:46 pm
PDX
- SEA
2 stops37h 03m
Frontier
Deal found 4/28![Frontier logo]()
$149
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/178:15 am
PDX
- SEA
1 stop14h 24m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$152
Find flight deals from Portland to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 May 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $195 (Kiwi.com) |
One-way from | $108 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $222 |
Good round-trip deal | $445 or less |
Good one-way deal | $192 or less |
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 May 3, 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
PDX - SEA
PDXSEA
Portland
Mon 6/8
5:00 am-6:02 am
Nonstop1h 02m
Seattle/Tacoma Intl
Mon 6/22
3:55 pm-4:55 pm
Nonstop1h 00m
$232
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Sun 6/14
12:23 pm-1:34 pm
Nonstop1h 11m
Seattle/Tacoma Intl
Mon 10/5
2:00 pm-3:06 pm
Nonstop1h 06m
$247
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Sat 7/18
12:23 pm-1:34 pm
Nonstop1h 11m
Seattle/Tacoma Intl
Sat 7/25
10:35 am-11:41 am
Nonstop1h 06m
$247
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Fri 6/12
5:50 pm-7:05 pm
Nonstop1h 15m
Seattle/Tacoma Intl
Sat 6/20
9:30 am-10:39 am
Nonstop1h 09m
$247
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Sat 6/13
9:30 am-10:55 am
Nonstop1h 25m
Seattle/Tacoma Intl
Sat 6/20
10:35 am-11:42 am
Nonstop1h 07m
$247
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Tue 5/19
7:05 am-8:20 am
Nonstop1h 15m
Seattle/Tacoma Intl
Sat 5/23
7:30 am-8:37 am
Nonstop1h 07m
$257
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Tue 5/26
5:44 pm-10:29 pm
1 stop4h 45m
Seattle/Tacoma Intl
Wed 5/27
7:00 am-1:50 pm
1 stop6h 50m
$288
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Thu 7/30
2:30 pm-8:35 pm
1 stop6h 05m
Seattle/Tacoma Intl
Thu 7/30
11:26 pm-12:22 am
Nonstop0h 56m
$336
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Tue 7/7
8:19 am-9:14 am
Nonstop0h 55m
Seattle/Tacoma Intl
Tue 7/21
11:37 am-4:51 pm
1 stop5h 14m
$340
PortlandSeattle
PDX - SEA
PDXSEA
Portland
Wed 7/1
8:19 am-9:14 am
Nonstop0h 55m
Seattle/Tacoma Intl
Thu 7/23
11:37 am-4:51 pm
1 stop5h 14m
$340
Showing 1-10 of 22 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 May.
| 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 | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-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-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.
PDX-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
Prices
Airlines
How far ahead should I book a flight from Portland to Seattle?
The price you pay for your flight from Portland to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 43 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 to Seattle?
Currently, January is the cheapest month in which you can book a flight from Portland to Seattle (average of $139). Flying from Portland to Seattle in March is currently the most expensive (average of $309). 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.
What is the cheapest time of day to fly from PDX to SEA?
Find hourly flight availability from Portland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 3, 2026.
When flying from Portland to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight at noon.
What is the cheapest day to fly from Portland to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Portland to Seattle. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Portland to Seattle flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Portland to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Portland to Seattle trip
Our travel experts
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 May 3, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andHawaiian Airlines from Portland to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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 locationsSeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
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Portland and Seattle flights
Browse other Portland and Seattle flight options. Last updated on May 3, 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 May 3, 2026.
Popular flight searches
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 May 3, 2026.
Top 3 airlines flying from Portland to Seattle
Discover the top 3 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 May 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$176 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$99 | Average$230 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$108 | Average$262 | FlexibilityNo cancel fee | On-time85% |