SEA

$91 Find Cheap Flights from Pennsylvania to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flights Deals

Cheap Flights from Pennsylvania to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pennsylvania to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Pennsylvania to Seattle

Fri, Aug 15 - Mon, Aug 18
Southwest Logo
7:00 pm - 12:05 amPIT-SEA
8h 05m1 stop
Southwest Logo
11:10 pm - 3:30 pmSEA-PIT
13h 20m1 stop
$193Southwest
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Sat, Sep 13 - Mon, Sep 22
American Airlines Logo
3:52 pm - 9:23 pmPIT-SEA
8h 31m1 stop
American Airlines Logo
11:38 pm - 10:19 amSEA-PIT
7h 41m1 stop
$195American Airlines
Find Deal
Sat, Jul 12 - Wed, Jul 16
Frontier Logo
6:00 pm - 11:42 pmDCA-SEA
8h 42m1 stop
Frontier Logo
6:25 am - 4:59 pmSEA-DCA
7h 34m1 stop
$196Frontier
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Thu, Sep 18 - Sat, Sep 20
Delta Logo
5:35 pm - 12:09 amPIT-SEA
9h 34m1 stop
Delta Logo
12:40 am - 10:06 amSEA-PIT
6h 26m1 stop
$197Delta
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Mon, Jun 30 - Thu, Jul 3
Frontier Logo
6:00 pm - 12:34 amDCA-SEA
9h 34m1 stop
Frontier Logo
6:25 am - 4:57 pmSEA-DCA
7h 32m1 stop
$198Frontier
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Mon, Jun 30 - Fri, Jul 4
Logo
5:40 pm - 12:34 amPIT-SEA
9h 54m1 stop
Logo
11:08 am - 6:42 pmSEA-PIT
4h 34mnonstop
$204
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Sat, Aug 23 - Sun, Aug 31
Delta Logo
5:30 pm - 10:15 pmPIT-SEA
7h 45m1 stop
Delta Logo
5:30 am - 4:35 pmSEA-PIT
8h 05m1 stop
$207Delta
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Tue, Jul 15 - Tue, Jul 22
Spirit Airlines Logo
7:20 am - 4:25 pmEWR-SEA
12h 05m1 stop
Spirit Airlines Logo
5:30 pm - 6:05 amSEA-EWR
9h 35m1 stop
$224Spirit Airlines
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Thu, Jul 10 - Tue, Jul 15
Logo
10:55 pm - 12:34 amLGA-SEA
28h 39m1 stop
Logo
5:30 pm - 12:29 pmSEA-LGA
15h 59m2 stops
$241
Find Deal
Tue, Jul 15 - Tue, Jul 22
Spirit Airlines Logo
5:59 am - 4:25 pmLGA-SEA
13h 26m2 stops
Spirit Airlines Logo
5:30 pm - 3:35 pmSEA-LGA
19h 05m2 stops
$245Spirit Airlines
Find Deal
Useful Info

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$91
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Pittsburgh to Seattle

Flights from Pennsylvania to Seattle: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Pennsylvania to Seattle 
Learn how KAYAK collects reviews and tips from users.
JohnFlew with Alaska AirlinesPIT-SEAJan 2025
They HOT tag your luggage if you have a connecting flight with a short layover, so any time you need to connect from Seattle on a subsequent flight just check to make sure your luggage is handled that way. While I was on board looking out the window, I saw my suitcase being loaded last - LIFO planning so that it would be unloaded first for my connection. Smooth sailing after that…. Great service!
Verified travelerFlew with Alaska AirlinesPIT-SEAOct 2024
Early Wednesday mornings must be the prime time to board because there was no time to stash my watch, etc. into my bag before security since there was almost NO line. Another bonus for morning people.

FAQs for booking flights from Pennsylvania to Seattle

  • How does KAYAK find such low prices on flights from Pennsylvania to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Pennsylvania to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Pennsylvania with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Seattle (SEA)

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