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$91+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 Tuesday

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 June 12, 2025.

Round-trip from

$246
(Southwest)

One-way from

$91
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$439

Good round-trip deal

$367 or less

Good one-way deal

$218 or less
From Pittsburgh to Seattle/Tacoma Intl
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One-way flight from Pittsburgh to Seattle/Tacoma Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Pittsburgh to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Pittsburgh to Seattle/Tacoma Intl.
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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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 9/123:06 pmPIT - SEA
1 stop7h 53mAmerican Airlines
Mon 9/156:42 amSEA - PIT
1 stop7h 55mAmerican Airlines
Deal found 6/11$246
This Southwest deal was found by Cheapflights users on 6/10. 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 7/295:50 pmPIT - SEA
1 stop9h 40mSouthwest
Wed 8/611:10 pmSEA - PIT
2 stops10h 00mSouthwest
Deal found 6/10$251
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 9/97:42 pmPIT - SEA
Nonstop5h 12mAlaska Airlines
Tue 9/911:10 pmSEA - PIT
Nonstop4h 38mAlaska Airlines
Deal found 6/10$252
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:42 pmPIT - SEA
Nonstop5h 12mHawaiian Airlines
Tue 8/2611:06 amSEA - PIT
Nonstop4h 36mHawaiian Airlines
Deal found 6/10$257
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:13 pmPIT - SEA
1 stop7h 21mDelta
Wed 12/36:05 amSEA - PIT
1 stop9h 25mDelta
Deal found 6/10$258
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/128:05 pmPIT - SEA
1 stop7h 51mUnited Airlines
Mon 7/2111:20 pmSEA - PIT
1 stop7h 18mUnited Airlines
Deal found 6/10$262
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/76:38 pmPIT - SEA
1 stop23h 25mSpirit Airlines
Wed 7/95:30 pmSEA - PIT
1 stop21h 40mSpirit Airlines
Deal found 6/12$292
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/85:40 pmPIT - SEA
1 stop9h 54mFrontier
Sun 8/177:48 pmSEA - PIT
1 stop17h 57mFrontier
Deal found 6/12$340
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:15 pmPIT - SEA
1 stop24h 10mMultiple Airlines
Sun 8/177:48 pmSEA - PIT
1 stop17h 57mMultiple Airlines
Deal found 6/12$350

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 June 12, 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

Fri 8/1

7:10 pm-12:30 am

1 stop8h 20m

Seattle/Tacoma Intl

Wed 8/6

1:10 pm-10:45 pm

1 stop6h 35m

$246

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 8/21

7:40 pm-12:54 am

1 stop8h 14m

Seattle/Tacoma Intl

Sat 8/23

5:35 am-4:04 pm

1 stop7h 29m

$248

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 9/9

7:42 pm-9:54 pm

Nonstop5h 12m

Seattle/Tacoma Intl

Tue 9/9

11:10 pm-6:48 am

Nonstop4h 38m

$252

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 8/23

7:42 pm-9:54 pm

Nonstop5h 12m

Seattle/Tacoma Intl

Tue 8/26

11:06 am-6:42 pm

Nonstop4h 36m

$257

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 7/1

5:18 pm-11:19 pm

1 stop9h 01m

Seattle/Tacoma Intl

Thu 7/10

5:30 am-4:24 pm

1 stop7h 54m

$258

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 7/12

8:05 pm-12:56 am

1 stop7h 51m

Seattle/Tacoma Intl

Mon 7/21

11:20 pm-9:38 am

1 stop7h 18m

$262

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Mon 7/7

6:38 pm-3:03 pm

1 stop23h 25m

Seattle/Tacoma Intl

Wed 7/9

5:30 pm-6:10 pm

1 stop21h 40m

$292

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Fri 8/8

5:40 pm-12:34 am

1 stop9h 54m

Seattle/Tacoma Intl

Sun 8/17

7:48 pm-4:45 pm

1 stop17h 57m

$340

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 8/7

7:15 pm-4:25 pm

1 stop24h 10m

Seattle/Tacoma Intl

Sun 8/17

7:48 pm-4:45 pm

1 stop17h 57m

$350

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 8/13

5:08 pm-11:40 pm

1 stop9h 32m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 19 results
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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 June 9, 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 July is currently the most expensive (average of $391). 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 June 12, 2025.

It’s typically best to fly out from Pittsburgh to Seattle at noon. Doing so could potentially save you 33% 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 June 8, 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 June 12, 2025.

The most flights from PIT to SEA are scheduled on a Thursday (5 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Pittsburgh to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 10m for a nonstop flight. There are 2 flights from Pittsburgh to Seattle per day from 8 airlines.

  • How popular is this Pittsburgh to Seattle flight route?

    This flight path from Pittsburgh to Seattle/Tacoma Intl was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Southwest ($246), American Airlines ($248), and Alaska Airlines ($252) offers the cheapest pricing from Pittsburgh to Seattle. Southwest is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Pittsburgh to Seattle one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $91. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Pittsburgh to Seattle for a low price.

  • 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 (100%), Alaska Airlines (80%) or Hawaiian Airlines (80%) 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 $148. While the most popular route (Pittsburgh - Seattle/Tacoma Intl) can be booked for $186 on average our data indicates $1,262 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 July is currently the most expensive (average of $391). 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 Pittsburgh?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pittsburgh to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Pittsburgh to Seattle

Discover the top 8 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$218FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$164Average$199FlexibilityNo cancel feeOn-time65%
DeltaCheapest$209Average$301FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$215Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$348FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$237Average$434FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$246Average$415FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$256Average$421FlexibilityNo cancel feeOn-time75%

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