Seattle

$80+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — SEA
Aug 21 — Aug 281
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 January or February, booked 86 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap 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 16, 2025.

Round-trip from

$208
(American Airlines)

One-way from

$80
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$395

Good round-trip deal

$329 or less

Good one-way deal

$214 or less
From Pittsburgh to Seattle/Tacoma Intl
One-way flight from Pittsburgh to Seattle/Tacoma Intl
Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Pittsburgh to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Pittsburgh to Seattle/Tacoma Intl.

Find flight deals from Pittsburgh to Seattle

Cheapest flights from Pittsburgh to Seattle
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 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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 8/263:35 pmPIT - SEA
1 stop7h 27mAmerican Airlines
Tue 9/911:05 pmSEA - PIT
1 stop7h 33mAmerican Airlines
Deal found 8/13$208
This Southwest deal was found by Cheapflights users on 8/15. 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 9/166:00 amPIT - SEA
1 stop8h 15mSouthwest
Sat 9/205:55 amSEA - PIT
1 stop11h 35mSouthwest
Deal found 8/15$209
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/105:13 pmPIT - SEA
1 stop8h 16mAmerican Airlines
Tue 9/1611:38 pmSEA - PIT
1 stop7h 41mAmerican Airlines
Deal found 8/13$213
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:30 pmPIT - SEA
1 stop7h 40mSouthwest
Sat 9/65:00 amSEA - PIT
1 stop6h 45mSouthwest
Deal found 8/14$216
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:23 pmPIT - SEA
1 stop9h 36mDelta
Sat 9/205:30 amSEA - PIT
1 stop7h 55mDelta
Deal found 8/15$218
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:00 pmPIT - SEA
2 stops12h 45mSouthwest
Tue 10/285:50 amSEA - PIT
1 stop6h 50mSouthwest
Deal found 8/14$219
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:00 pmPIT - SEA
1 stop8h 05mSouthwest
Fri 9/126:30 amSEA - PIT
1 stop14h 10mSouthwest
Deal found 8/14$220
This Delta deal was found by Cheapflights users on 8/14. 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.
Mon 8/256:00 amPIT - SEA
1 stop9h 04mDelta
Mon 9/1511:40 pmSEA - PIT
1 stop7h 40mDelta
Deal found 8/14$222
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 12/168:11 amPIT - SEA
1 stop7h 23mAmerican Airlines
Wed 12/241:22 amSEA - PIT
1 stop6h 13mAmerican Airlines
Deal found 8/15$226
This American Airlines deal was found by Cheapflights users on 8/15. 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 12/158:11 amPIT - SEA
1 stop7h 23mAmerican Airlines
Fri 1/912:27 amSEA - PIT
1 stop7h 18mAmerican Airlines
Deal found 8/15$227
This Delta deal was found by Cheapflights users on 8/14. 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 8/214:31 pmPIT - SEA
1 stop10h 28mDelta
Sat 8/305:30 amSEA - PIT
1 stop8h 05mDelta
Deal found 8/14$233
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 10/43:06 pmPIT - SEA
1 stop7h 59mAmerican Airlines
Sun 10/512:34 amSEA - PIT
1 stop8h 26mAmerican Airlines
Deal found 8/16$234

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 16, 2025.
Use the filters below to find and compare flights from Pittsburgh to Seattle that are best for you.

Fly from

Pittsburgh

Fly to

Seattle

Route

Depart

Return

Price

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 8/26

3:35 pm-8:02 pm

1 stop7h 27m

Seattle/Tacoma Intl

Tue 9/9

11:05 pm-9:38 am

1 stop7h 33m

$208

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 9/16

6:00 am-11:15 am

1 stop8h 15m

Seattle/Tacoma Intl

Sat 9/20

5:55 am-8:30 pm

1 stop11h 35m

$209

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 10/30

6:15 am-11:30 am

1 stop8h 15m

Seattle/Tacoma Intl

Fri 11/7

10:52 pm-9:33 am

1 stop7h 41m

$209

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Fri 10/24

3:12 pm-8:46 pm

1 stop8h 34m

Seattle/Tacoma Intl

Sun 10/26

12:34 am-11:56 am

1 stop8h 22m

$209

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 9/10

5:13 pm-10:29 pm

1 stop8h 16m

Seattle/Tacoma Intl

Tue 9/16

11:38 pm-10:19 am

1 stop7h 41m

$213

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 9/3

6:30 pm-11:10 pm

1 stop7h 40m

Seattle/Tacoma Intl

Sat 9/6

5:00 am-2:45 pm

1 stop6h 45m

$216

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 9/18

5:23 pm-11:59 pm

1 stop9h 36m

Seattle/Tacoma Intl

Tue 9/23

9:45 pm-8:55 am

1 stop8h 10m

$218

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/13

5:23 pm-9:58 pm

1 stop7h 35m

Seattle/Tacoma Intl

Sat 9/20

5:30 am-4:25 pm

1 stop7h 55m

$218

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 9/17

7:40 pm-11:43 pm

1 stop7h 03m

Seattle/Tacoma Intl

Sat 9/20

5:30 am-4:25 pm

1 stop7h 55m

$218

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Fri 10/31

10:02 am-4:27 pm

1 stop9h 25m

Seattle/Tacoma Intl

Sun 11/2

11:15 pm-9:34 am

1 stop7h 19m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 results
1
2
3

The best insider tips for Pittsburgh to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Seattle trip
Airports
PIT

Arrive early at PIT due to construction and potential security delays. Check the live security time tracker for shorter wait times.

Read more about PITby John Walton
SEA

Take the Link light rail from SEA to downtown Seattle for an affordable and convenient option. It runs every 10 minutes and takes less than 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
John Walton

John Walton

Expert on PIT

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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.
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

How far ahead should I book a flight from Pittsburgh to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to Seattle. Price data was last updated on August 8, 2025.

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 76 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, January is the cheapest month in which you can book a flight from Pittsburgh to Seattle (average of $238). Flying from Pittsburgh to Seattle in June is currently the most expensive (average of $389). 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 16, 2025.

It’s typically best to fly out from Pittsburgh to Seattle at noon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Pittsburgh to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Pittsburgh to Seattle. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Pittsburgh to Seattle flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Pittsburgh to Seattle

Explore weekly flight availability from Pittsburgh to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 16, 2025.

The most flights from PIT to SEA are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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 50% 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 $157.

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 44m.

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 1h 03m.

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 16, 2025.
Read through reviews of airlines operating flights from Pittsburgh to Seattle, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
8.0
Very good

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Overall

8.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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.
  • What airports do I use to fly from Pittsburgh to Seattle?

    If you book a flight from Pittsburgh to Seattle, you will be flying from Pittsburgh to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Pittsburgh (PIT) take 5h 12m for a nonstop flight. There are 3 flights from Pittsburgh to Seattle per day from 7 airlines.

  • How popular is this Pittsburgh to Seattle flight route?

  • What are the cheapest airlines flying from Pittsburgh to Seattle round-trip?

    According to our current data, Frontier ($99), Southwest ($194), and Delta ($196) offers the cheapest pricing from Pittsburgh to Seattle. Frontier is priced at 73% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Pittsburgh to Seattle?

    No one likes to see their flight delayed. When booking a flight from Pittsburgh to Seattle consider choosing Finnair (68%), Alaska Airlines (60%) or Hawaiian Airlines (55%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Pittsburgh to Seattle?

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Pittsburgh - Seattle/Tacoma Intl) can be booked for $159 on average our data indicates $383 when flying from Pittsburgh to Seattle.

  • Can I find deals for flights from Pittsburgh to Seattle that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Seattle.

  • Can I find deals for business class flights from Pittsburgh to Seattle?

    Yes. Cheapflights offers flight deals from Pittsburgh to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Pittsburgh to Seattle (average of $238). Flying from Pittsburgh to Seattle in June is currently the most expensive (average of $389). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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 for Pittsburgh to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$218FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$194Average$390FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$289FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$214Average$329FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$345FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$236Average$422FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$254Average$420FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.