Cheap flights from Pennsylvania to Seattle from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Seattle departing on 9/3. 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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0 bags

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Cheap round-trip flights

American Airlines Logo
4:50 pm - 10:26 pmPIT-SEA
8h 36m1 stop
American Airlines Logo
5:26 am - 5:29 pmSEA-PIT
9h 03m1 stop
$195American Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 5
Delta Logo
5:23 pm - 10:22 pmPIT-SEA
7h 59m1 stop
Delta Logo
11:11 pm - 9:54 amSEA-PIT
7h 43m1 stop
$197Delta
Find Deal
Fri, Sep 19 - Mon, Sep 22
Southwest Logo
7:00 pm - 12:05 amPIT-SEA
8h 05m1 stop
Southwest Logo
5:55 am - 8:30 pmSEA-PIT
11h 35m1 stop
$200Southwest
Find Deal
Fri, Sep 5 - Sat, Sep 13
United Airlines Logo
7:45 am - 10:45 amEWR-SEA
6h 00mnonstop
United Airlines Logo
2:20 pm - 10:40 pmSEA-EWR
5h 20mnonstop
$201United Airlines
Find Deal
Mon, Sep 1 - Thu, Sep 4
Alaska Airlines Logo
7:19 am - 10:20 amEWR-SEA
6h 01mnonstop
Alaska Airlines Logo
6:05 pm - 6:59 amSEA-EWR
9h 54m1 stop
$205Alaska Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
Hawaiian Airlines Logo
7:19 am - 10:20 amEWR-SEA
6h 01mnonstop
Hawaiian Airlines Logo
8:19 am - 4:48 pmSEA-EWR
5h 29mnonstop
$215Hawaiian Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
Southwest Logo
3:05 pm - 10:30 pmPIT-SEA
10h 25m1 stop
Southwest Logo
6:45 am - 6:55 pmSEA-PIT
9h 10m1 stop
$217Southwest
Find Deal
Sat, Aug 23 - Tue, Aug 26
United Airlines Logo
6:22 am - 1:28 pmPIT-SEA
10h 06m1 stop
United Airlines Logo
10:55 pm - 9:43 amSEA-PIT
7h 48m1 stop
$218United Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 20
Alaska Airlines Logo
7:19 am - 10:20 amEWR-SEA
6h 01mnonstop
Alaska Airlines Logo
9:33 pm - 5:59 amSEA-EWR
5h 26mnonstop
$218Alaska Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
Hawaiian Airlines Logo
7:19 am - 10:20 amEWR-SEA
6h 01mnonstop
Hawaiian Airlines Logo
9:55 am - 6:29 pmSEA-EWR
5h 34mnonstop
$223Hawaiian Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9

Southwest flights from Pennsylvania to Seattle

Our best Southwest deals on Pennsylvania to Seattle flight tickets
Southwest
Sep 5
PIT7:00 pmPittsburgh
8h 05m
1 stop
SEA12:05 amSeattle/Tacoma Intl
Sep 13
SEA5:55 amSeattle/Tacoma Intl
11h 35m
1 stop
PIT8:30 pmPittsburgh
Southwest
Aug 23
PIT3:05 pmPittsburgh
10h 25m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
Aug 26
SEA6:45 amSeattle/Tacoma Intl
9h 10m
1 stop
PIT6:55 pmPittsburgh
Southwest
Aug 16
PIT3:05 pmPittsburgh
10h 25m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
Aug 22
SEA6:30 amSeattle/Tacoma Intl
14h 10m
1 stop
PIT11:40 pmPittsburgh

Hawaiian Airlines flights from Pennsylvania to Seattle

Our best Hawaiian Airlines deals on Pennsylvania to Seattle flight tickets
Hawaiian Airlines
Sep 1
EWR7:19 amNewark
6h 01m
SEA10:20 amSeattle/Tacoma Intl
Sep 9
SEA8:19 amSeattle/Tacoma Intl
5h 29m
EWR4:48 pmNewark
Hawaiian Airlines
Sep 1
EWR7:19 amNewark
6h 01m
SEA10:20 amSeattle/Tacoma Intl
Sep 9
SEA9:55 amSeattle/Tacoma Intl
5h 34m
EWR6:29 pmNewark
Hawaiian Airlines
Sep 1
EWR7:19 amNewark
6h 01m
SEA10:20 amSeattle/Tacoma Intl
Sep 9
SEA5:05 pmSeattle/Tacoma Intl
10h 54m
1 stop
EWR6:59 amNewark

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Pennsylvania to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 9/2

4:50 pm-10:26 pm

1 stop8h 36m

Seattle/Tacoma Intl

Fri 9/5

5:26 am-5:29 pm

1 stop9h 03m

$195

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Fri 9/19

5:23 pm-10:22 pm

1 stop7h 59m

Seattle/Tacoma Intl

Mon 9/22

11:11 pm-9:54 am

1 stop7h 43m

$197

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Fri 9/5

7:00 pm-12:05 am

1 stop8h 05m

Seattle/Tacoma Intl

Sat 9/13

5:55 am-8:30 pm

1 stop11h 35m

$200

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 9/1

7:45 am-10:45 am

Nonstop6h 00m

Seattle/Tacoma Intl

Thu 9/4

2:20 pm-10:40 pm

Nonstop5h 20m

$201

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 9/1

7:19 am-10:20 am

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 9/9

6:05 pm-6:59 am

1 stop9h 54m

$205

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 9/1

7:19 am-10:20 am

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 9/9

8:19 am-4:48 pm

Nonstop5h 29m

$215

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 8/23

3:05 pm-10:30 pm

1 stop10h 25m

Seattle/Tacoma Intl

Tue 8/26

6:45 am-6:55 pm

1 stop9h 10m

$217

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Sat 9/20

6:22 am-1:28 pm

1 stop10h 06m

Seattle/Tacoma Intl

Sat 9/20

10:55 pm-9:43 am

1 stop7h 48m

$218

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 9/1

7:19 am-10:20 am

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 9/9

9:33 pm-5:59 am

Nonstop5h 26m

$218

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 9/1

7:19 am-10:20 am

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 9/9

9:55 am-6:29 pm

Nonstop5h 34m

$223

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Pennsylvania 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?

In general, March is the cheapest month to fly from Pennsylvania to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $367. If you don’t want to visit Seattle in March, then you should wait until February to fly from Pennsylvania, when ticket prices are also cheap, with an average price of $391.

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

On average, the least expensive day to fly to Seattle from Pennsylvania is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $479. 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 Pennsylvania because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $586.

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

Flying to Seattle from Pennsylvania at noon is the least expensive time of day to depart. momondo users have found prices as low as $416 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $540. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Pittsburgh to Seattle/Tacoma Intl for the best Pennsylvania - 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 Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $431 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Pennsylvania for as low as $381 on momondo.

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

There are 4 cabin classes available to choose from on Pennsylvania 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 Pennsylvania to Seattle flights?

You could potentially save up to 21% on your flight if you consider stops on a Pennsylvania to Seattle flight.

Cheap Pennsylvania to Seattle flight deals and tips

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

Best Price Found

$93

Fastest flight time

5h 10m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Pennsylvania in the past 72 hours is $93. The best round-trip flight deal from Pennsylvania to Seattle found on momondo in the last 72 hours is $195.
The fastest flight from Pennsylvania to Seattle takes 5h 10m
Direct flights go from Pennsylvania to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    Prices for flights from Pennsylvania to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Pennsylvania 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 Pennsylvania to Seattle/Tacoma Intl Airport.

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

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Pennsylvania to Seattle?


Best airlines flying from Pennsylvania to Seattle

Compare and see reviews for airlines that fly from Pennsylvania to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $127Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $194Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
DeltaPriceFrom $196Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Sun Country AirPriceFrom $211Free CancellationRating
6.9
334 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $215Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $246Free CancellationRating
7.8
2,611 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Kent
Federal Way
Puyallup
Lynnwood
Marysville
Tukwila
Kirkland
Lakewood
Fife
Centralia
Cle Elum
Shoreline
Westport
Redmond

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania 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 Pennsylvania to Seattle for you.

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

Yes. momondo enables you to select and highlight flights to Seattle from Pennsylvania with this policy.

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

Once you have performed a search for Pennsylvania to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Seattle from Pennsylvania. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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1 adult
Tue 8/5
Tue 8/12

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