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Cheap flights from Pennsylvania 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 Pennsylvania to Seattle departing on 10/28. 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
5:15 am - 10:54 amPIT-SEA
8h 39m1 stop
American Airlines Logo
10:35 am - 10:06 pmSEA-PIT
8h 31m1 stop
$179American Airlines
Find Deal
vie., oct. 31 - lun., nov. 3
American Airlines Logo
5:37 am - 11:03 amPIT-SEA
8h 26m1 stop
American Airlines Logo
6:10 am - 5:04 pmSEA-PIT
7h 54m1 stop
$180American Airlines
Find Deal
jue., oct. 16 - mié., oct. 22
Southwest Logo
9:55 am - 6:00 pmPIT-SEA
11h 05m2 stops
Southwest Logo
5:15 am - 4:50 pmSEA-PIT
8h 35m1 stop
$184Southwest
Find Deal
jue., oct. 30 - mar., nov. 4
Southwest Logo
6:25 pm - 11:45 pmLGA-SEA
8h 20m1 stop
Southwest Logo
9:10 am - 9:00 pmSEA-LGA
8h 50m1 stop
$197Southwest
Find Deal
mar., oct. 21 - mar., oct. 28
United Airlines Logo
7:55 am - 11:11 amEWR-SEA
6h 16mnonstop
United Airlines Logo
6:20 am - 2:36 pmSEA-EWR
5h 16mnonstop
$197United Airlines
Find Deal
vie., oct. 31 - mar., nov. 4
Delta Logo
6:59 pm - 10:22 pmJFK-SEA
6h 23mnonstop
Delta Logo
9:59 pm - 6:20 amSEA-JFK
5h 21mnonstop
$197Delta
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mié., oct. 22 - sáb., nov. 1
Delta Logo
5:29 pm - 12:11 amPIT-SEA
9h 42m1 stop
Delta Logo
2:02 pm - 12:21 amSEA-PIT
7h 19m1 stop
$197Delta
Find Deal
jue., nov. 20 - jue., nov. 27
Multiple Airlines Logo
5:30 pm - 8:46 pmEWR-SEA
6h 16mnonstop
Multiple Airlines Logo
8:48 am - 5:06 pmSEA-EWR
5h 18mnonstop
$198Multiple Airlines
Find Deal
jue., nov. 6 - jue., nov. 13
United Airlines Logo
7:50 am - 10:52 amEWR-SEA
6h 02mnonstop
United Airlines Logo
6:00 am - 2:23 pmSEA-EWR
5h 23mnonstop
$201United Airlines
Find Deal
mié., oct. 8 - mar., oct. 14
Multiple Airlines Logo
7:30 am - 10:40 amEWR-SEA
6h 10mnonstop
Multiple Airlines Logo
7:00 am - 3:25 pmSEA-EWR
5h 25mnonstop
$202Multiple Airlines
Find Deal
jue., nov. 13 - lun., nov. 17

American Airlines flights from Pennsylvania to Seattle

Our best American Airlines deals on Pennsylvania to Seattle flight tickets
American Airlines
Oct 31
PIT5:15 amPittsburgh
8h 39m
1 stop
SEA10:54 amSeattle/Tacoma Intl
Nov 3
SEA10:35 amSeattle/Tacoma Intl
8h 31m
1 stop
PIT10:06 pmPittsburgh
$179
Find similar
American Airlines
Oct 16
PIT5:37 amPittsburgh
8h 26m
1 stop
SEA11:03 amSeattle/Tacoma Intl
Oct 22
SEA6:10 amSeattle/Tacoma Intl
7h 54m
1 stop
PIT5:04 pmPittsburgh
$180
Find similar
American Airlines
Oct 18
PIT3:12 pmPittsburgh
8h 34m
1 stop
SEA8:46 pmSeattle/Tacoma Intl
Oct 27
SEA11:56 pmSeattle/Tacoma Intl
7h 27m
1 stop
PIT10:23 amPittsburgh
$181
Find similar

JetBlue flights from Pennsylvania to Seattle

Our best JetBlue deals on Pennsylvania to Seattle flight tickets
JetBlue
Oct 17
JFK7:00 pmNew York John F Kennedy Intl
6h 36m
SEA10:36 pmSeattle/Tacoma Intl
Oct 21
SEA11:40 pmSeattle/Tacoma Intl
5h 20m
JFK8:00 amNew York John F Kennedy Intl
$207
Find similar
JetBlue
Oct 18
JFK7:00 pmNew York John F Kennedy Intl
6h 36m
SEA10:36 pmSeattle/Tacoma Intl
Oct 21
SEA11:56 pmSeattle/Tacoma Intl
5h 19m
JFK8:15 amNew York John F Kennedy Intl
$209
Find similar
JetBlue
Oct 11
JFK7:00 pmNew York John F Kennedy Intl
6h 36m
SEA10:36 pmSeattle/Tacoma Intl
Oct 20
SEA11:56 pmSeattle/Tacoma Intl
5h 19m
JFK8:15 amNew York John F Kennedy Intl
$212
Find similar

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 septiembre 23, 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

vie. 10/31

5:15 am-10:54 am

1 stop8h 39m

Seattle/Tacoma Intl

lun. 11/3

10:35 am-10:06 pm

1 stop8h 31m

$179

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

jue. 10/16

5:37 am-11:03 am

1 stop8h 26m

Seattle/Tacoma Intl

mié. 10/22

6:10 am-5:04 pm

1 stop7h 54m

$180

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

jue. 10/30

9:55 am-6:00 pm

2 stops11h 05m

Seattle/Tacoma Intl

mar. 11/4

5:15 am-4:50 pm

1 stop8h 35m

$184

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

mar. 10/21

6:25 pm-11:45 pm

1 stop8h 20m

Seattle/Tacoma Intl

mar. 10/28

9:10 am-9:00 pm

1 stop8h 50m

$197

NewarkSeattle

EWR - SEA

EWRSEA

Newark

vie. 10/31

7:55 am-11:11 am

Nonstop6h 16m

Seattle/Tacoma Intl

mar. 11/4

6:20 am-2:36 pm

Nonstop5h 16m

$197

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

mié. 10/22

6:59 pm-10:22 pm

Nonstop6h 23m

Seattle/Tacoma Intl

sáb. 11/1

9:59 pm-6:20 am

Nonstop5h 21m

$197

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

jue. 11/20

5:29 pm-12:11 am

1 stop9h 42m

Seattle/Tacoma Intl

jue. 11/27

2:02 pm-12:21 am

1 stop7h 19m

$197

NewarkSeattle

EWR - SEA

EWRSEA

Newark

jue. 11/6

5:30 pm-8:46 pm

Nonstop6h 16m

Seattle/Tacoma Intl

jue. 11/13

8:48 am-5:06 pm

Nonstop5h 18m

$198

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mié. 10/8

7:50 am-10:52 am

Nonstop6h 02m

Seattle/Tacoma Intl

mar. 10/14

6:00 am-2:23 pm

Nonstop5h 23m

$201

NewarkSeattle

EWR - SEA

EWRSEA

Newark

jue. 11/13

7:30 am-10:40 am

Nonstop6h 10m

Seattle/Tacoma Intl

lun. 11/17

7:00 am-3:25 pm

Nonstop5h 25m

$202

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, October 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 $361. If you don’t want to visit Seattle in October, then you should wait until March to fly from Pennsylvania, when ticket prices are also cheap, with an average price of $367.

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 $477. 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 $589.

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 $535. 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 $426 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 $376 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 20% 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

$187

Fastest flight time

5h 12m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Pennsylvania in the past 72 hours is $187. The best round-trip flight deal from Pennsylvania to Seattle found on momondo in the last 72 hours is $325.
The fastest flight from Pennsylvania to Seattle takes 5h 12m
Direct flights go from Pennsylvania to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • 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
5.8
3,165 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $127Free CancellationRating
6.3
8,041 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $180Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $186Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
DeltaPriceFrom $196Free CancellationRating
7.9
7,974 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $235Free CancellationRating
7.8
2,744 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Sun Country AirPriceFrom $238Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $250Free 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
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

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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