$134+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — SEA
Sep 6 — Sep 131
Round-trip
1 adult, Economy
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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 January, booked 84 days in advance, depart on a Wednesday or Thursday and return on a Tuesday
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 August 7, 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 August 7, 2026.
This American Airlines deal was found by Cheapflights users on 8/5. 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.
Wed 9/1610:16 am -
1 stop7h 35m
Sun 9/2010:45 pm -
1 stop8h 43m
Deal found 8/5![American Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 8/5. 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 9/166:55 pm -
1 stop7h 45m
Wed 9/2311:05 pm -
2 stops10h 30m
Deal found 8/5![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 8/4. 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 8/251:25 pm -
2 stops9h 50m
Wed 9/911:05 pm -
2 stops10h 30m
Deal found 8/4![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:50 pm -
2 stops13h 05m
Sun 9/65:10 am -
2 stops12h 30m
Deal found 8/2![Southwest logo]()
$283
This Southwest deal was found by Cheapflights users on 8/5. 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 10/286:50 am -
2 stops10h 30m
Sat 10/316:15 am -
1 stop7h 55m
Deal found 8/5![Southwest logo]()
$290
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:50 pm -
2 stops13h 05m
Thu 8/2711:05 pm -
2 stops10h 05m
Deal found 8/2![Southwest logo]()
$296
This American Airlines deal was found by Cheapflights users on 8/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:25 pm -
1 stop10h 34m
Sun 8/305:15 am -
1 stop8h 22m
Deal found 8/2![American Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/4. 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 10/85:11 am -
1 stop7h 25m
Mon 10/1211:13 pm -
1 stop6h 25m
Deal found 8/4![United Airlines logo]()
$300
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:00 pm -
2 stops10h 15m
Mon 9/146:15 am -
2 stops12h 55m
Deal found 8/3![Southwest logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/186:09 pm -
1 stop7h 34m
Mon 8/245:20 pm -
1 stop9h 15m
Deal found 8/4![United Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 8/4. 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 8/2812:50 pm -
2 stops13h 05m
Fri 9/116:15 am -
1 stop13h 05m
Deal found 8/4![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/35:48 pm -
1 stop8h 38m
Thu 9/107:00 am -
1 stop7h 14m
Deal found 8/6![United Airlines logo]()
$313
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 August 7, 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 August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:25 pm -
2 stops9h 50m
Tue 9/111:05 pm -
2 stops10h 00m
Deal found 8/1![Southwest logo]()
$278
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Mon 8/245:48 pm -
1 stop8h 38m
Fri 8/2810:55 am -
2 stops10h 15m
Deal found 8/6![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 8/287:02 am -
Nonstop5h 12m
Sat 9/59:43 pm -
Nonstop4h 41m
Deal found 8/4![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:25 pm -
2 stops9h 55m
Tue 9/155:20 am -
2 stops9h 15m
Deal found 8/1![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:11 pm -
1 stop7h 56m
Tue 9/15:20 pm -
2 stops13h 29m
Deal found 8/1![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:55 pm -
2 stops11h 55m
Sun 9/65:10 am -
2 stops12h 30m
Deal found 8/2![Southwest logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 9/57:02 am -
Nonstop5h 12m
Sun 9/69:43 am -
Nonstop4h 42m
Deal found 8/3![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:00 pm -
2 stops11h 41m
Mon 8/315:20 pm -
1 stop9h 15m
Deal found 8/1![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 8/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:02 am -
Nonstop5h 12m
Tue 9/159:44 pm -
Nonstop4h 41m
Deal found 8/5![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:55 pm -
2 stops10h 35m
Sat 9/55:00 am -
1 stop7h 30m
Deal found 8/1![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:20 pm -
1 stop8h 25m
Mon 8/317:35 pm -
2 stops11h 14m
Deal found 8/1![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/306:30 am -
2 stops12h 35m
Sat 10/37:25 pm -
2 stops10h 13m
Deal found 8/3![United Airlines logo]()
$387
Last-minute flights from Pittsburgh to SeattleDiscover last-minute flight deals from Pittsburgh to Seattle. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Seattle. Data last updated August 7, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/3. 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 8/107:30 pm -
1 stop7h 25m
Mon 8/2411:05 pm -
1 stop9h 15m
Deal found 8/3![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/186:09 pm -
1 stop7h 34m
Mon 8/245:20 pm -
1 stop9h 15m
Deal found 8/4![United Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 8/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:25 pm -
1 stop10h 34m
Sun 8/305:15 am -
1 stop8h 22m
Deal found 8/2![American Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 8/3. 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 8/226:10 am -
1 stop7h 35m
Mon 8/3111:05 pm -
1 stop9h 15m
Deal found 8/3![Southwest logo]()
$316
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:50 pm -
2 stops13h 05m
Thu 8/2711:05 pm -
2 stops10h 05m
Deal found 8/2![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 8/4. 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 8/251:25 pm -
2 stops9h 50m
Wed 9/911:05 pm -
2 stops10h 30m
Deal found 8/4![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 8/4. 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 8/2812:50 pm -
2 stops13h 05m
Fri 9/116:15 am -
1 stop13h 05m
Deal found 8/4![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:50 pm -
2 stops13h 05m
Sun 9/65:10 am -
2 stops12h 30m
Deal found 8/2![Southwest logo]()
$283
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/35:48 pm -
1 stop8h 38m
Thu 9/107:00 am -
1 stop7h 14m
Deal found 8/6![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:00 pm -
2 stops10h 15m
Mon 9/146:15 am -
2 stops12h 55m
Deal found 8/3![Southwest logo]()
$301
This American Airlines deal was found by Cheapflights users on 8/5. 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.
Wed 9/1610:16 am -
1 stop7h 35m
Sun 9/2010:45 pm -
1 stop8h 43m
Deal found 8/5![American Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 8/5. 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 9/166:55 pm -
1 stop7h 45m
Wed 9/2311:05 pm -
2 stops10h 30m
Deal found 8/5![Southwest logo]()
$272
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 August 7, 2026.
Search for one-way flight options from Pittsburgh to Seattle. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This American Airlines deal was found by Cheapflights users on 8/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
1 stop10h 51m
Deal found 8/2![American Airlines logo]()
$134
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:25 pm -
2 stops9h 50m
Deal found 8/2![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:35 am -
1 stop11h 16m
Deal found 8/3![Multiple Airlines logo]()
$155
This Southwest deal was found by Cheapflights users on 8/5. 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.
Tue 10/63:45 pm -
2 stops9h 55m
Deal found 8/5![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 8/5. 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.
Fri 8/146:50 am -
1 stop9h 00m
Deal found 8/5![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Sun 11/112:53 pm -
2 stops47h 58m
Deal found 8/1![Multiple Airlines logo]()
$168
This Southwest deal was found by Cheapflights users on 8/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:50 pm -
2 stops13h 05m
Deal found 8/2![Southwest logo]()
$169
This KAYAK deal was found by Cheapflights users on 8/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:06 pm -
1 stop7h 46m
Deal found 8/3![American Airlines logo]()
$174
This American Airlines deal was found by Cheapflights users on 8/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:21 am -
1 stop9h 29m
Deal found 8/2![American Airlines logo]()
$183
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:30 am -
2 stops11h 00m
Deal found 8/4![Southwest logo]()
$188
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/15:18 pm -
1 stop10h 57m
Deal found 8/3![United Airlines logo]()
$189
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 August 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $267 (American Airlines) |
One-way from | $134 (American Airlines) |
Popular in | July |
Cheapest in | February |
Average price | $404 |
Good round-trip deal | $451 or less |
Good one-way deal | $303 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 August 7, 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 Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Wed 8/26
1:25 pm-8:15 pm
2 stops9h 50m
Seattle/Tacoma Intl
Tue 9/1
11:05 pm-12:05 pm
2 stops10h 00m
$278
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Wed 9/9
1:25 pm-8:20 pm
2 stops9h 55m
Seattle/Tacoma Intl
Tue 9/15
5:20 am-5:35 pm
2 stops9h 15m
$296
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Sun 8/30
3:55 pm-12:50 am
2 stops11h 55m
Seattle/Tacoma Intl
Sun 9/6
5:10 am-8:40 pm
2 stops12h 30m
$358
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Sat 8/29
1:55 pm-9:30 pm
2 stops10h 35m
Seattle/Tacoma Intl
Sat 9/5
5:00 am-3:30 pm
1 stop7h 30m
$375
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Mon 8/24
5:48 pm-11:26 pm
1 stop8h 38m
Seattle/Tacoma Intl
Fri 8/28
10:55 am-12:10 am
2 stops10h 15m
$382
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Mon 8/24
2:11 pm-7:07 pm
1 stop7h 56m
Seattle/Tacoma Intl
Tue 9/1
5:20 pm-9:49 am
2 stops13h 29m
$382
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Fri 8/28
1:00 pm-9:41 pm
2 stops11h 41m
Seattle/Tacoma Intl
Mon 8/31
5:20 pm-5:35 am
1 stop9h 15m
$382
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Sat 8/22
3:20 pm-8:45 pm
1 stop8h 25m
Seattle/Tacoma Intl
Mon 8/31
7:35 pm-9:49 am
2 stops11h 14m
$382
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Wed 9/30
6:30 am-4:05 pm
2 stops12h 35m
Seattle/Tacoma Intl
Sat 10/3
7:25 pm-8:38 am
2 stops10h 13m
$387
Quickest round-trip
PittsburghSeattle
PIT Pittsburgh - SEA Seattle/Tacoma Intl
PITSEA
Pittsburgh
Fri 8/28
7:02 am-9:14 am
Nonstop5h 12m
Seattle/Tacoma Intl
Sat 9/5
9:43 pm-5:24 am
Nonstop4h 41m
$397
Showing 1-10 of 22 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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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
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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 83 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 $218). Flying from Pittsburgh to Seattle in July is currently the most expensive (average of $520). 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 August 7, 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 (ORD) – 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 (ORD) is the most affordable 1-stop option, with an average round-trip price of $370.
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 (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 55m.
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 (MDW) offer the fastest connection on this route, with an average layover time of 1h 33m.
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 August 7, 2026.
Read through reviews of airlines operating flights from Pittsburgh to Seattle, such as Southwest,Alaska Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from 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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo
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Pittsburgh and Seattle flights
Browse other Pittsburgh and Seattle flight options. Last updated on August 7, 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 August 7, 2026.
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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 August 7, 2026.
Top 6 airlines flying from Pittsburgh to Seattle
Discover the top 6 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 August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$339 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$168 | Average$319 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$171 | Average$241 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$397 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$421 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$234 | Average$347 | FlexibilityNo cancel fee | On-time69% |