What is the cheapest airline that flies from Pittsburgh to Seattle/Tacoma Intl?

Southwest, American Airlines, and Delta are the most popular carriers operating from Pittsburgh to Seattle/Tacoma Intl

Which airport is the most popular layover for flights between Pittsburgh and Seattle?

Salt Lake City (SLC) was the most common stop: 45% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Pittsburgh to Seattle on average per day?

The number of flights available between Pittsburgh and Seattle is 2 per day as of September 2025. The most frequent departure time is 7:00PM, with 58% of daily flights leaving at noon.

Which layover airport has the shortest connection time from Pittsburgh to Seattle?

Minneapolis (MSP) has the shortest average layover time for this route: 0h 43m.

How many flights depart from Pittsburgh to Seattle on average per week?

As of September 2025, there are 17 flights per week flying from Pittsburgh to Seattle. The most common day of the week flights depart is Mon, with 29% of flights taking off on this day.

Which layover airport offers the lowest fares from Pittsburgh to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $255.

What airlines fly to Seattle?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Seattle from Pittsburgh according to our data. Alaska Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Pittsburgh to Seattle?

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 7h 19m.

When did momondo last update prices for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

As of September 2025, there are 7 operators available to choose from for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pittsburgh Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$90 Cheap Flights from Pittsburgh to Seattle (PIT-SEA) in 2025

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Find the cheapest flights from Pittsburgh to Seattle (PIT-SEA)

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:18 pm - 11:07 pmPIT-SEA

8h 49m1 stop

1:35 am - 1:33 pmSEA-PIT

8h 58m1 stop

$215American Airlines

Find Deal

Thu, Feb 26 - Sun, Mar 1

5:58 pm - 11:54 pmPIT-SEA

8h 56m1 stop

11:15 pm - 9:33 amSEA-PIT

7h 18m1 stop

$217Delta

Find Deal

Sat, Sep 27 - Tue, Oct 7

6:00 am - 11:40 amPIT-SEA

8h 40m1 stop

12:59 am - 3:53 pmSEA-PIT

11h 54m2 stops

$220American Airlines

Find Deal

Mon, Nov 24 - Wed, Nov 26

8:05 pm - 12:35 amPIT-SEA

7h 30m1 stop

5:35 am - 6:25 pmSEA-PIT

9h 50m2 stops

$224Southwest

Find Deal

Thu, Nov 6 - Sun, Nov 9

5:23 pm - 9:58 pmPIT-SEA

7h 35m1 stop

11:40 pm - 10:23 amSEA-PIT

7h 43m1 stop

$228Delta

Find Deal

Sat, Sep 20 - Fri, Sep 26

7:42 pm - 9:54 pmPIT-SEA

5h 12mnonstop

11:08 pm - 6:48 amSEA-PIT

4h 40mnonstop

$237Alaska Airlines

Find Deal

Tue, Sep 23 - Tue, Sep 30

7:42 pm - 9:54 pmPIT-SEA

5h 12mnonstop

11:08 pm - 6:48 amSEA-PIT

4h 40mnonstop

$247Alaska Airlines

Find Deal

Wed, Sep 24 - Fri, Oct 3

7:59 pm - 10:22 pmPIT-SEA

5h 23mnonstop

11:03 am - 6:56 pmSEA-PIT

4h 53mnonstop

$254Hawaiian Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 22

10:35 am - 3:53 pmPIT-SEA

8h 18m1 stop

5:02 am - 3:10 pmSEA-PIT

7h 08m1 stop

$262United Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

4:10 pm - 10:20 pmPIT-SEA

9h 10m1 stop

5:02 am - 3:10 pmSEA-PIT

7h 08m1 stop

$267United Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

American Airlines flights from Pittsburgh to Seattle

Our best American Airlines deals on Pittsburgh to Seattle flight tickets

American Airlines

Sep 16

PIT11:56 amPittsburgh

10h 13m

1 stop

SEA7:09 pmSeattle/Tacoma Intl

Sep 17

SEA10:57 amSeattle/Tacoma Intl

8h 58m

1 stop

PIT10:55 pmPittsburgh

$211

Find similar

American Airlines

Feb 26

PIT5:18 pmPittsburgh

8h 49m

1 stop

SEA11:07 pmSeattle/Tacoma Intl

Mar 1

SEA1:35 amSeattle/Tacoma Intl

8h 58m

1 stop

PIT1:33 pmPittsburgh

$215

Find similar

American Airlines

Nov 24

PIT6:00 amPittsburgh

8h 40m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 26

SEA12:59 amSeattle/Tacoma Intl

11h 54m

2 stops

PIT3:53 pmPittsburgh

$220

Find similar

Delta flights from Pittsburgh to Seattle

Our best Delta deals on Pittsburgh to Seattle flight tickets

Delta

Sep 27

PIT5:58 pmPittsburgh

8h 56m

1 stop

SEA11:54 pmSeattle/Tacoma Intl

Oct 7

SEA11:15 pmSeattle/Tacoma Intl

7h 18m

1 stop

PIT9:33 amPittsburgh

$217

Find similar

Delta

Sep 20

PIT5:23 pmPittsburgh

7h 35m

1 stop

SEA9:58 pmSeattle/Tacoma Intl

Sep 26

SEA11:40 pmSeattle/Tacoma Intl

7h 43m

1 stop

PIT10:23 amPittsburgh

$228

Find similar

Delta

Feb 14

PIT5:30 pmPittsburgh

8h 46m

1 stop

SEA11:16 pmSeattle/Tacoma Intl

Feb 23

SEA11:05 pmSeattle/Tacoma Intl

7h 36m

1 stop

PIT9:41 amPittsburgh

$238

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 2/26

5:18 pm-11:07 pm

1 stop8h 49m

Seattle/Tacoma Intl

Sun 3/1

1:35 am-1:33 pm

1 stop8h 58m

$215

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/27

5:58 pm-11:54 pm

1 stop8h 56m

Seattle/Tacoma Intl

Tue 10/7

11:15 pm-9:33 am

1 stop7h 18m

$217

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Mon 11/24

6:00 am-11:40 am

1 stop8h 40m

Seattle/Tacoma Intl

Wed 11/26

12:59 am-3:53 pm

2 stops11h 54m

$220

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Thu 11/6

8:05 pm-12:35 am

1 stop7h 30m

Seattle/Tacoma Intl

Sun 11/9

5:35 am-6:25 pm

2 stops9h 50m

$224

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/20

5:23 pm-9:58 pm

1 stop7h 35m

Seattle/Tacoma Intl

Fri 9/26

11:40 pm-10:23 am

1 stop7h 43m

$228

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 9/23

7:42 pm-9:54 pm

Nonstop5h 12m

Seattle/Tacoma Intl

Tue 9/30

11:08 pm-6:48 am

Nonstop4h 40m

$237

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 9/24

7:42 pm-9:54 pm

Nonstop5h 12m

Seattle/Tacoma Intl

Fri 10/3

11:08 pm-6:48 am

Nonstop4h 40m

$247

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 10/15

7:59 pm-10:22 pm

Nonstop5h 23m

Seattle/Tacoma Intl

Wed 10/22

11:03 am-6:56 pm

Nonstop4h 53m

$254

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/13

10:35 am-3:53 pm

1 stop8h 18m

Seattle/Tacoma Intl

Sat 9/20

5:02 am-3:10 pm

1 stop7h 08m

$262

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/13

4:10 pm-10:20 pm

1 stop9h 10m

Seattle/Tacoma Intl

Sat 9/20

5:02 am-3:10 pm

1 stop7h 08m

$267

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Pittsburgh to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Pittsburgh to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you don’t want to visit Seattle in January, then you should wait until February to fly from Pittsburgh, when ticket prices are also cheap, with an average price of $302.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Pittsburgh is on a Thursday. momondo users have found tickets for Thursday departures for as low as $455. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Pittsburgh because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $555.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Pittsburgh at noon is the least expensive time of day to depart. momondo users have found prices as low as $362 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $525. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Pittsburgh to Seattle/Tacoma Intl flight route?

Fly from Pittsburgh to Seattle/Tacoma Intl for the best Pittsburgh - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Pittsburgh when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $369 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Pittsburgh for as low as $331 on momondo.

What cabin class options are available on Pittsburgh to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Pittsburgh to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pittsburgh to Seattle flights?

You could potentially save up to 20% on your flight if you consider stops on a Pittsburgh to Seattle flight.

How have Pittsburgh to Seattle flight prices changed over time?

As of September 2025, prices for Pittsburgh to Seattle flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Pittsburgh to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Pittsburgh to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Pittsburgh to Seattle (PIT to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pittsburgh to Seattle

Best Price Found	$178
Fastest flight time	5h 12m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Pittsburgh in the past 72 hours is $178. The best round-trip flight deal from Pittsburgh to Seattle found on momondo in the last 72 hours is $314.

The fastest flight from Pittsburgh to Seattle takes 5h 12m

Direct flights go from Pittsburgh to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Pittsburgh to Seattle/Tacoma Intl by plane?
Pittsburgh and Seattle/Tacoma Intl are 2131.5 mi apart from one another. Flights usually cover this in 5h 12m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?
As of September 2025, there are 7 operators available to choose from for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Pittsburgh Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pittsburgh Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Pittsburgh to Seattle?
Based on momondo bookings for flights between Pittsburgh and Seattle, the leading plane model is Boeing 737 MAX 9, making up 74.73% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 5.52%, Boeing 737 MAX 8 with 5.31%, and Boeing 737 with 4.46%.
What is the most popular airline from Pittsburgh to Seattle?
Based on momondo bookings for flights between Pittsburgh and Seattle, the leading airline is Alaska Airlines, making up 54% of the total bookings. Other popular airlines include Delta with 14%, American Airlines with 10%, and Hawaiian Airlines with 9%.

Best airlines flying from Pittsburgh to Seattle

Compare and see reviews for airlines that fly from Pittsburgh to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $99	Free Cancellation	Rating 5.8 3,198 reviews	Search Frontier flights
Southwest	PriceFrom $194	Free Cancellation	Rating 8.0 4,239 reviews	Search Southwest flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 7,974 reviews	Search Delta flights
American Airlines	PriceFrom $200	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $236	Free Cancellation	Rating 7.8 2,701 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $254	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Alaska Airlines Flights From Pittsburgh to Seattle
Alaska Airlines flight deals from Pittsburgh to Seattle start from $254 round-trip. Over the 2 Alaska Airlines flights for this route in a normal week, average airfare is usually $420 round-trip - but some users have found much cheaper deals with momondo.
Hawaiian Airlines Flights From Pittsburgh to Seattle
Across 2,701 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from Pittsburgh to Seattle about 11 times each week, with ticket deals ranging from $236 to $420. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from Pittsburgh to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pittsburgh to Seattle for you.

Can I find flights from Pittsburgh to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Pittsburgh to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Pittsburgh to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pittsburgh to Seattle.

I’m not ready to book a flight from Pittsburgh to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Pittsburgh and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Pittsburgh to Seattle from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to Seattle departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Pittsburgh to Seattle (PIT-SEA)

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American Airlines flights from Pittsburgh to Seattle

Our best American Airlines deals on Pittsburgh to Seattle flight tickets

Delta flights from Pittsburgh to Seattle

Our best Delta deals on Pittsburgh to Seattle flight tickets

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Pittsburgh to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Pittsburgh to Seattle/Tacoma Intl flight route?

Fly from Pittsburgh to Seattle/Tacoma Intl for the best Pittsburgh - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Pittsburgh to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Pittsburgh to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pittsburgh to Seattle flights?

You could potentially save up to 20% on your flight if you consider stops on a Pittsburgh to Seattle flight.

How have Pittsburgh to Seattle flight prices changed over time?

As of September 2025, prices for Pittsburgh to Seattle flights are approximately 0% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Pittsburgh to Seattle/Tacoma Intl?

Southwest, American Airlines, and Delta are the most popular carriers operating from Pittsburgh to Seattle/Tacoma Intl

What airlines fly to Seattle?

Which airport is the most popular layover for flights between Pittsburgh and Seattle?

Salt Lake City (SLC) was the most common stop: 45% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Pittsburgh to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $255.

Which layover airport has the shortest travel time from Pittsburgh to Seattle?

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 7h 19m.

Which layover airport has the shortest connection time from Pittsburgh to Seattle?

Minneapolis (MSP) has the shortest average layover time for this route: 0h 43m.

How many flights depart from Pittsburgh to Seattle on average per day?

The number of flights available between Pittsburgh and Seattle is 2 per day as of September 2025. The most frequent departure time is 7:00PM, with 58% of daily flights leaving at noon.

How many flights depart from Pittsburgh to Seattle on average per week?

As of September 2025, there are 17 flights per week flying from Pittsburgh to Seattle. The most common day of the week flights depart is Mon, with 29% of flights taking off on this day.

When to book flights from Pittsburgh to Seattle

Cheap Pittsburgh to Seattle (PIT to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pittsburgh to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

How far is Pittsburgh to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Pittsburgh Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Pittsburgh to Seattle?

What is the most popular airline from Pittsburgh to Seattle?

Best airlines flying from Pittsburgh to Seattle

Compare and see reviews for airlines that fly from Pittsburgh to Seattle with momondo

Alaska Airlines Flights From Pittsburgh to Seattle

Hawaiian Airlines Flights From Pittsburgh to Seattle

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Pittsburgh to Seattle?

Can I find flights from Pittsburgh to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Pittsburgh to Seattle?

I’m not ready to book a flight from Pittsburgh to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States