$125+ Cheap flights from Pittsburgh to Seattle (PIT - 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — SEA
Jun 19 — Jun 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Pittsburgh 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 Pittsburgh to Seattle/Tacoma Intl are usually found in February or October, booked 76 days in advance, depart on a Wednesday or Thursday and return on a Friday
Cheap flight deals from Pittsburgh to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Pittsburgh to SeattleExplore the most affordable flight options available from Pittsburgh to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
Explore the most affordable flight options available from Pittsburgh to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
This Southwest deal was found by Cheapflights users on 5/16. 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 8/183:25 pm
PIT
- SEA
2 stops10h 40m
Southwest
Tue 8/255:20 am
SEA
- PIT
1 stop6h 50m
Southwest
Deal found 5/16![Southwest logo]()
$272
This American Airlines deal was found by Cheapflights users on 5/18. 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 9/156:08 pm
PIT
- SEA
1 stop7h 48m
American Airlines
Thu 9/2410:35 pm
SEA
- PIT
1 stop10h 29m
American Airlines
Deal found 5/18![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 5/16. 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 9/166:08 pm
PIT
- SEA
1 stop7h 48m
American Airlines
Sat 9/1911:32 am
SEA
- PIT
1 stop6h 49m
American Airlines
Deal found 5/16![American Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 5/15. 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 6/15:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Mon 6/811:58 pm
SEA
- PIT
1 stop9h 35m
American Airlines
Deal found 5/15![American Airlines logo]()
$284
This Southwest deal was found by Cheapflights users on 5/16. 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 8/106:35 pm
PIT
- SEA
1 stop7h 20m
Southwest
Tue 8/1810:30 pm
SEA
- PIT
1 stop10h 35m
Southwest
Deal found 5/16![Southwest logo]()
$285
This Southwest deal was found by Cheapflights users on 5/18. 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 7/283:55 pm
PIT
- SEA
2 stops10h 35m
Southwest
Tue 8/1111:05 pm
SEA
- PIT
1 stop9h 15m
Southwest
Deal found 5/18![Southwest logo]()
$290
This Southwest deal was found by Cheapflights users on 5/18. 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 8/291:55 pm
PIT
- SEA
2 stops10h 35m
Southwest
Tue 9/111:00 pm
SEA
- PIT
1 stop10h 45m
Southwest
Deal found 5/18![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 5/19. 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 9/46:10 pm
PIT
- SEA
1 stop7h 35m
United Airlines
Mon 9/1411:00 pm
SEA
- PIT
1 stop7h 49m
United Airlines
Deal found 5/19![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 5/15. 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 8/48:40 am
PIT
- SEA
1 stop12h 55m
Southwest
Tue 8/411:00 pm
SEA
- PIT
1 stop10h 45m
Southwest
Deal found 5/15![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 5/19. 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 8/66:30 pm
PIT
- SEA
1 stop9h 10m
Southwest
Tue 8/1111:05 pm
SEA
- PIT
1 stop9h 15m
Southwest
Deal found 5/19![Southwest logo]()
$298
This American Airlines deal was found by Cheapflights users on 5/18. 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 7/155:05 pm
PIT
- SEA
1 stop8h 51m
American Airlines
Wed 7/225:05 am
SEA
- PIT
1 stop10h 39m
American Airlines
Deal found 5/18![American Airlines logo]()
$302
Best flights from Pittsburgh to SeattleDiscover carefully curated flight deals from Pittsburgh to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
Discover carefully curated flight deals from Pittsburgh to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
This Southwest deal was found by Cheapflights users on 5/18. 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 7/106:40 pm
PIT
- SEA
2 stops10h 00m
Southwest
Thu 7/166:30 am
SEA
- PIT
1 stop14h 25m
Southwest
Deal found 5/18![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/32:13 pm
PIT
- SEA
1 stop7h 52m
United Airlines
Thu 6/1111:20 pm
SEA
- PIT
1 stop7h 20m
United Airlines
Deal found 5/15![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 5/14. 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 7/165:40 pm
PIT
- SEA
1 stop9h 19m
Delta
Tue 7/2111:59 pm
SEA
- PIT
1 stop7h 34m
Delta
Deal found 5/14![Delta logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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.
Fri 7/36:10 pm
PIT
- SEA
Nonstop5h 20m
Alaska Airlines
Wed 7/810:37 pm
SEA
- PIT
Nonstop4h 33m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$422
This Southwest deal was found by Cheapflights users on 5/15. 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 8/121:25 pm
PIT
- SEA
2 stops9h 50m
Southwest
Thu 8/276:15 am
SEA
- PIT
2 stops12h 35m
Southwest
Deal found 5/15![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 5/15. 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 5/305:31 pm
PIT
- SEA
1 stop10h 42m
United Airlines
Fri 6/510:40 pm
SEA
- PIT
2 stops12h 25m
United Airlines
Deal found 5/15![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 5/17. 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 7/113:30 pm
PIT
- SEA
2 stops11h 40m
Southwest
Mon 7/206:30 am
SEA
- PIT
1 stop14h 25m
Southwest
Deal found 5/17![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 5/19. 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 8/106:30 pm
PIT
- SEA
1 stop9h 10m
Southwest
Fri 8/1411:05 pm
SEA
- PIT
1 stop8h 00m
Southwest
Deal found 5/19![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 5/16. 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 5/292:05 pm
PIT
- SEA
2 stops12h 27m
United Airlines
Mon 6/83:33 pm
SEA
- PIT
1 stop10h 46m
United Airlines
Deal found 5/16![United Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 5/19. 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 8/136:30 pm
PIT
- SEA
1 stop9h 10m
Southwest
Mon 8/176:15 am
SEA
- PIT
2 stops13h 55m
Southwest
Deal found 5/19![Southwest logo]()
$399
This Southwest deal was found by Cheapflights users on 5/16. 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 6/88:10 pm
PIT
- SEA
1 stop7h 20m
Southwest
Mon 6/159:25 pm
SEA
- PIT
1 stop11h 40m
Southwest
Deal found 5/16![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 5/17. 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 6/256:40 pm
PIT
- SEA
2 stops10h 00m
Southwest
Mon 6/296:30 am
SEA
- PIT
1 stop14h 25m
Southwest
Deal found 5/17![Southwest logo]()
$432
Last-minute flights from Pittsburgh to SeattleDiscover last-minute flight deals from Pittsburgh to Seattle. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Seattle. Data last updated May 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/17. 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 5/245:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Sun 5/3111:58 pm
SEA
- PIT
1 stop9h 34m
American Airlines
Deal found 5/17![American Airlines logo]()
$381
This Southwest deal was found by Cheapflights users on 5/19. 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 5/283:55 pm
PIT
- SEA
1 stop12h 00m
Southwest
Mon 6/811:05 pm
SEA
- PIT
1 stop8h 15m
Southwest
Deal found 5/19![Southwest logo]()
$386
This Southwest deal was found by Cheapflights users on 5/15. 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 5/283:55 pm
PIT
- SEA
1 stop12h 00m
Southwest
Tue 6/166:15 am
SEA
- PIT
1 stop9h 00m
Southwest
Deal found 5/15![Southwest logo]()
$414
This American Airlines deal was found by Cheapflights users on 5/15. 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 5/283:56 pm
PIT
- SEA
1 stop7h 37m
American Airlines
Tue 6/1610:35 pm
SEA
- PIT
1 stop10h 33m
American Airlines
Deal found 5/15![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 5/15. 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 5/295:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Tue 6/910:35 pm
SEA
- PIT
1 stop8h 37m
American Airlines
Deal found 5/15![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 5/15. 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 5/293:56 pm
PIT
- SEA
1 stop7h 37m
American Airlines
Mon 6/110:35 pm
SEA
- PIT
1 stop8h 37m
American Airlines
Deal found 5/15![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 5/15. 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 5/293:56 pm
PIT
- SEA
1 stop7h 37m
American Airlines
Fri 7/2410:35 pm
SEA
- PIT
1 stop8h 39m
American Airlines
Deal found 5/15![American Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 5/18. 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 5/293:55 pm
PIT
- SEA
2 stops11h 45m
Southwest
Tue 6/95:15 am
SEA
- PIT
1 stop7h 20m
Southwest
Deal found 5/18![Southwest logo]()
$406
One-way flights from Pittsburgh to SeattleSearch for one-way flight options from Pittsburgh to Seattle. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
Search for one-way flight options from Pittsburgh to Seattle. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/95:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Deal found 5/18![American Airlines logo]()
$125
This Southwest deal was found by Cheapflights users on 5/19. 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 6/95:30 pm
PIT
- SEA
1 stop10h 10m
Southwest
Deal found 5/19![Southwest logo]()
$143
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/15:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Deal found 5/18![American Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 5/18. 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 8/76:30 pm
PIT
- SEA
1 stop9h 10m
Southwest
Deal found 5/18![Southwest logo]()
$160
This Southwest deal was found by Cheapflights users on 5/19. 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 7/113:30 pm
PIT
- SEA
2 stops11h 40m
Southwest
Deal found 5/19![Southwest logo]()
$165
This United Airlines deal was found by Cheapflights users on 5/15. 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 8/106:16 pm
PIT
- SEA
1 stop7h 40m
United Airlines
Deal found 5/15![United Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 5/18. 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 8/173:46 pm
PIT
- SEA
1 stop9h 05m
United Airlines
Deal found 5/18![United Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/158:00 am
PIT
- SEA
2 stops29h 35m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$182
This American Airlines deal was found by Cheapflights users on 5/16. 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 8/116:00 am
PIT
- SEA
2 stops13h 32m
American Airlines
Deal found 5/16![American Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 8/38:00 am
PIT
- SEA
2 stops33h 19m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 5/18. 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 8/113:25 pm
PIT
- SEA
2 stops10h 40m
Southwest
Deal found 5/18![Southwest logo]()
$193
Find flight deals from Pittsburgh to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) 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 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $272 (Southwest) |
One-way from | $125 (American Airlines) |
Popular in | July |
Cheapest in | February |
Average price | $348 |
Good round-trip deal | $452 or less |
Good one-way deal | $287 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pittsburgh 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 20, 2026.
Use the filters below to find and compare flights from Pittsburgh to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Fri 7/10
6:40 pm-1:40 am
2 stops10h 00m
Seattle/Tacoma Intl
Thu 7/16
6:30 am-11:55 pm
1 stop14h 25m
$330
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Wed 6/3
2:13 pm-7:05 pm
1 stop7h 52m
Seattle/Tacoma Intl
Thu 6/11
11:20 pm-9:40 am
1 stop7h 20m
$359
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Wed 8/12
1:25 pm-8:15 pm
2 stops9h 50m
Seattle/Tacoma Intl
Thu 8/27
6:15 am-9:50 pm
2 stops12h 35m
$359
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Sat 7/11
3:30 pm-12:10 am
2 stops11h 40m
Seattle/Tacoma Intl
Mon 7/20
6:30 am-11:55 pm
1 stop14h 25m
$370
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Mon 8/10
6:30 pm-12:40 am
1 stop9h 10m
Seattle/Tacoma Intl
Fri 8/14
11:05 pm-10:05 am
1 stop8h 00m
$394
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Sat 5/30
5:31 pm-1:13 am
1 stop10h 42m
Seattle/Tacoma Intl
Fri 6/5
10:40 pm-2:05 pm
2 stops12h 25m
$399
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Thu 8/13
6:30 pm-12:40 am
1 stop9h 10m
Seattle/Tacoma Intl
Mon 8/17
6:15 am-11:10 pm
2 stops13h 55m
$399
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Thu 7/16
5:40 pm-11:59 pm
1 stop9h 19m
Seattle/Tacoma Intl
Tue 7/21
11:59 pm-10:33 am
1 stop7h 34m
$407
Quickest round-trip
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Fri 7/3
6:10 pm-8:30 pm
Nonstop5h 20m
Seattle/Tacoma Intl
Wed 7/8
10:37 pm-6:10 am
Nonstop4h 33m
$422
PittsburghSeattle
PIT - SEA
PITSEA
Pittsburgh
Mon 6/8
8:10 pm-12:30 am
1 stop7h 20m
Seattle/Tacoma Intl
Mon 6/15
9:25 pm-12:05 pm
1 stop11h 40m
$426
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Pittsburgh 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 Pittsburgh 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 |
- Most accurate provider: When it comes to deals on Pittsburgh-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pittsburgh-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pittsburgh-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Pittsburgh-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 Pittsburgh-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 Pittsburgh to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Pittsburgh with our price prediction graph.
PIT-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 Pittsburgh to Seattle
Prices
More
How far ahead should I book a flight from Pittsburgh to Seattle?
The price you pay for your flight from Pittsburgh to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 75 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 Pittsburgh to Seattle?
Currently, February is the cheapest month in which you can book a flight from Pittsburgh to Seattle (average of $217). Flying from Pittsburgh to Seattle in July is currently the most expensive (average of $398). 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 PIT to SEA?
Find hourly flight availability from Pittsburgh 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 20, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pittsburgh to Seattle as you normally would.
What’s the top layover airport for flights from Pittsburgh to Seattle?
Share of 1-stop round-trip flights from Pittsburgh to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (MDW) – chosen by Cheapflights users on 67% of 1-stop itineraries from Pittsburgh to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Pittsburgh to Seattle?
Average round-trip fare for 1-stop flights from Pittsburgh to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (MDW) is the most affordable 1-stop option, with an average round-trip price of $324.
What’s the fastest layover option from Pittsburgh to Seattle?
Shortest average travel time for 1-stop one-way flights from Pittsburgh to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 29m.
Which airport typically offers the quickest layover for flights from Pittsburgh to Seattle?
Average layover duration for 1-stop one-way flights from Pittsburgh to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 0h 56m.
The best insider tips for Pittsburgh 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 Pittsburgh 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 20, 2026.
Read through reviews of airlines operating flights from Pittsburgh to Seattle, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Pittsburgh 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
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Pittsburgh
Popular flights
Seattle flight routes
Alternative routes for Pittsburgh to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pittsburgh to Seattle by cabin class
Find flights from Pittsburgh to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pittsburgh and Seattle flights
Browse other Pittsburgh and Seattle flight options. Last updated on May 20, 2026.
Other flights from Pittsburgh
Browse through other flights departing from Pittsburgh. Flights are based on user searches made on Cheapflights and were last updated on May 20, 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 20, 2026.
Top 7 airlines flying from Pittsburgh to Seattle
Discover the top 7 airlines that operate flights from Pittsburgh 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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$161 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$237 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$166 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$178 | Average$295 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$400 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$197 | Average$385 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$231 | Average$346 | FlexibilityNo cancel fee | On-time69% |