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Cheap flights from Seattle to Pennsylvania from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Pennsylvania departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:04 am - 6:10 pm
SEA
-
PIT
7h 06m1 stop
American Airlines Logo
8:10 am - 12:33 pm
PIT
-
SEA
7h 23m1 stop
$191American Airlines
Wed, Feb 11 - Wed, Feb 18
Delta Logo
11:10 pm - 9:43 am
SEA
-
PIT
7h 33m1 stop
Delta Logo
5:32 pm - 12:09 am
PIT
-
SEA
9h 37m1 stop
$197Delta
Sun, Jan 25 - Sun, Feb 1
Alaska Airlines Logo
11:10 am - 6:46 pm
SEA
-
PIT
4h 36mnonstop
Alaska Airlines Logo
7:00 am - 9:32 am
PIT
-
SEA
5h 32mnonstop
$207Alaska Airlines
Sun, Jan 11 - Wed, Jan 14
Frontier Logo
10:06 am - 5:00 pm
SEA
-
DCA
27h 54m2 stops
Frontier Logo
8:00 am - 12:01 pm
DCA
-
SEA
31h 01m1 stop
$207Frontier
Fri, Feb 13 - Wed, Feb 18
Delta Logo
12:00 pm - 11:26 pm
SEA
-
DCA
8h 26m1 stop
Delta Logo
4:44 pm - 7:43 pm
DCA
-
SEA
5h 59mnonstop
$209Delta
Tue, Feb 10 - Wed, Feb 18
Alaska Airlines Logo
5:53 pm - 4:22 pm
SEA
-
EWR
19h 29m1 stop
Alaska Airlines Logo
6:08 pm - 9:28 pm
EWR
-
SEA
6h 20mnonstop
$212Alaska Airlines
Mon, Feb 2 - Tue, Feb 10
United Airlines Logo
12:57 pm - 12:52 am
SEA
-
EWR
8h 55m1 stop
United Airlines Logo
7:44 am - 11:06 am
EWR
-
SEA
6h 22mnonstop
$213United Airlines
Tue, Jan 6 - Sat, Jan 17
American Airlines Logo
11:36 am - 11:21 pm
SEA
-
EWR
8h 45m1 stop
American Airlines Logo
7:10 am - 12:32 pm
EWR
-
SEA
8h 22m1 stop
$216American Airlines
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
8:40 am - 7:17 pm
SEA
-
EWR
7h 37m1 stop
United Airlines Logo
6:00 am - 11:32 am
EWR
-
SEA
8h 32m1 stop
$217United Airlines
Fri, Jan 9 - Sat, Jan 24
Hawaiian Airlines Logo
2:40 pm - 10:52 pm
SEA
-
JFK
5h 12mnonstop
Hawaiian Airlines Logo
4:22 pm - 7:50 pm
JFK
-
SEA
6h 28mnonstop
$246Hawaiian Airlines
Thu, Jan 8 - Wed, Jan 14

Hawaiian Airlines flights from Seattle to Pennsylvania

Our best Hawaiian Airlines deals on Seattle to Pennsylvania flight tickets
Hawaiian Airlines
Jan 9
SEA8:00 amSeattle/Tacoma Intl
5h 09m
DCA4:09 pmWashington, D.C. Reagan-National
Jan 17
DCA5:01 pmWashington, D.C. Reagan-National
6h 06m
SEA8:07 pmSeattle/Tacoma Intl
$231
Find similar
Hawaiian Airlines
Jan 8
SEA2:40 pmSeattle/Tacoma Intl
5h 12m
JFK10:52 pmNew York John F Kennedy Intl
Jan 14
JFK4:22 pmNew York John F Kennedy Intl
6h 28m
SEA7:50 pmSeattle/Tacoma Intl
$246
Find similar
Hawaiian Airlines
Jan 8
SEA11:06 amSeattle/Tacoma Intl
5h 22m
JFK7:28 pmNew York John F Kennedy Intl
Jan 14
JFK4:22 pmNew York John F Kennedy Intl
6h 28m
SEA7:50 pmSeattle/Tacoma Intl
$267
Find similar

Frontier flights from Seattle to Pennsylvania

Our best Frontier deals on Seattle to Pennsylvania flight tickets
Frontier
Feb 13
SEA10:06 amSeattle/Tacoma Intl
27h 54m
2 stops
DCA5:00 pmWashington, D.C. Reagan-National
Feb 18
DCA8:00 amWashington, D.C. Reagan-National
31h 01m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
$207
Find similar
Frontier
Jan 6
SEA7:13 pmSeattle/Tacoma Intl
18h 46m
2 stops
DCA4:59 pmWashington, D.C. Reagan-National
Jan 29
DCA2:00 pmWashington, D.C. Reagan-National
24h 19m
1 stop
SEA11:19 amSeattle/Tacoma Intl
$210
Find similar
Frontier
Feb 6
SEA12:34 pmSeattle/Tacoma Intl
21h 28m
1 stop
DCA1:02 pmWashington, D.C. Reagan-National
Feb 15
DCA8:00 amWashington, D.C. Reagan-National
15h 08m
2 stops
SEA8:08 pmSeattle/Tacoma Intl
$212
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Pennsylvania 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 December 18, 2025.
Use the filters below to find and compare flights from Seattle to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 2/11

8:04 am-6:10 pm

1 stop7h 06m

Pittsburgh

Wed 2/18

8:10 am-12:33 pm

1 stop7h 23m

$191

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Sun 1/25

11:10 pm-9:43 am

1 stop7h 33m

Pittsburgh

Sun 2/1

5:32 pm-12:09 am

1 stop9h 37m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Sun 1/11

11:10 am-6:46 pm

Nonstop4h 36m

Pittsburgh

Wed 1/14

7:00 am-9:32 am

Nonstop5h 32m

$207

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Fri 2/13

10:06 am-5:00 pm

2 stops27h 54m

Washington, D.C. Reagan-National

Wed 2/18

8:00 am-12:01 pm

1 stop31h 01m

$207

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Tue 2/10

12:00 pm-11:26 pm

1 stop8h 26m

Washington, D.C. Reagan-National

Wed 2/18

4:44 pm-7:43 pm

Nonstop5h 59m

$209

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Mon 2/2

5:53 pm-4:22 pm

1 stop19h 29m

Newark

Tue 2/10

6:08 pm-9:28 pm

Nonstop6h 20m

$212

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 1/6

12:57 pm-12:52 am

1 stop8h 55m

Newark

Sat 1/17

7:44 am-11:06 am

Nonstop6h 22m

$213

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 2/24

11:36 am-11:21 pm

1 stop8h 45m

Newark

Tue 3/3

7:10 am-12:32 pm

1 stop8h 22m

$216

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Fri 1/9

8:40 am-7:17 pm

1 stop7h 37m

Newark

Sat 1/24

6:00 am-11:32 am

1 stop8h 32m

$217

SeattleNew York

SEA - JFK

SEAJFK

Seattle/Tacoma Intl

Thu 1/8

2:40 pm-10:52 pm

Nonstop5h 12m

New York John F Kennedy Intl

Wed 1/14

4:22 pm-7:50 pm

Nonstop6h 28m

$246

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 Pennsylvania from

How to get the cheapest flight ticket from Seattle to Pennsylvania

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 Pennsylvania?

The month of October is, on average, the cheapest month to fly to Pennsylvania from Seattle, with most prices found around $334. If you don’t want to visit Pennsylvania in October, then you should wait until January to fly from Seattle, when ticket prices are also cheap, with an average price of $376.

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

The cheapest day to depart on your flight to Pennsylvania is on a Wednesday when prices can be found for as low as $455. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $580. These prices are subject to change though, so be sure to set up a Price Alert for flights to Pennsylvania.

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

Our most recent data shows that the best time of day to fly to Pennsylvania is at noon. Flights from Seattle to Pennsylvania during this time can be as low as $344. In contrast, the most expensive time of day to depart to Pennsylvania is in the afternoon when prices are around $726.

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

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

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

You are more likely to see cheaper flights to Pennsylvania from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around $434 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from Seattle for as low as $369 on momondo.

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

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

You could potentially save up to 30% on your flight if you consider stops on a Seattle to Pennsylvania flight.

Cheap Seattle to Pennsylvania flight deals and tips

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

Best Price Found

$233

Fastest flight time

4h 35m

Direct flights

Every day

Airports in Pennsylvania

152 airports
The best one-way flight to Pennsylvania from Seattle in the past 72 hours is $233. The best round-trip flight deal from Seattle to Pennsylvania found on momondo in the last 72 hours is $285.
The fastest flight from Seattle to Pennsylvania takes 4h 35m
Direct flights go from Seattle to Pennsylvania every day.
There are 152 airports in Pennsylvania. From Seattle there are direct flights to Pittsburgh (PIT), Washington, D.C. Dulles Intl (IAD).
Search flight deals

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

    Prices for flights from Seattle/Tacoma Intl Airport to Pennsylvania are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Pennsylvania.

  • What documentation or ID do you need to fly to Pennsylvania?

    The necessary travel and health documents for your Pennsylvania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to Pennsylvania

Compare and see reviews for airlines that fly from Seattle to Pennsylvania with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $138Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
FrontierPriceFrom $140Free CancellationRating
5.8
3,080 reviews
Search Frontier flights
DeltaPriceFrom $149Free CancellationRating
7.9
8,008 reviews
Search Delta flights
SouthwestPriceFrom $177Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
American AirlinesPriceFrom $192Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $221Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $222Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $233Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $234Free CancellationRating
8.0
11,479 reviews
Search Alaska Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Pennsylvania from Seattle.

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

Yes. All flights to Pennsylvania from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Seattle to Pennsylvania flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Seattle to Pennsylvania now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Pennsylvania and let you know when they change.

An easier way to manage your Pennsylvania 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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