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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$78 CHEAP FLIGHTS from Pennsylvania to Seattle

SEA

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Cheap Flight Deals 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Pennsylvania to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Pennsylvania to Seattle.

Discover the best prices for you by selecting your travel dates on KAYAK.

6:00 pm - 12:10 amPHL-SEA

9h 10m1 stop

3:20 pm - 6:01 amSEA-PHL

11h 41m1 stop

$163Spirit Airlines

Find Deal

Wed, May 21 - Wed, May 28

6:00 pm - 12:10 amPHL-SEA

9h 10m1 stop

3:20 pm - 5:55 amSEA-PHL

11h 35m1 stop

$168Spirit Airlines

Find Deal

Sat, May 17 - Tue, May 20

6:00 pm - 12:10 amPHL-SEA

9h 10m1 stop

6:25 am - 5:10 amSEA-PHL

19h 45m1 stop

$188

Find Deal

Tue, Jun 3 - Tue, Jun 10

6:00 pm - 12:37 amDCA-SEA

9h 37m1 stop

6:25 am - 4:57 pmSEA-DCA

7h 32m1 stop

$197Frontier

Find Deal

Sat, May 31 - Sat, Jun 7

12:20 pm - 12:44 amPHL-SEA

15h 24m1 stop

6:00 am - 9:15 pmSEA-PHL

12h 15m1 stop

$198Frontier

Find Deal

Sat, May 10 - Sat, May 17

12:03 pm - 12:10 amEWR-SEA

15h 07m1 stop

6:11 am - 2:29 pmSEA-EWR

5h 18mnonstop

$198

Find Deal

Tue, Jun 3 - Wed, Jun 11

7:29 pm - 10:32 pmEWR-SEA

6h 03mnonstop

6:41 am - 3:00 pmSEA-EWR

5h 19mnonstop

$199Alaska Airlines

Find Deal

Wed, Sep 24 - Tue, Sep 30

7:46 am - 2:50 pmEWR-SEA

10h 04m1 stop

6:11 am - 2:29 pmSEA-EWR

5h 18mnonstop

$209Alaska Airlines

Find Deal

Tue, Jun 3 - Wed, Jun 11

4:55 pm - 10:42 pmEWR-SEA

8h 47m1 stop

11:24 pm - 7:35 amSEA-EWR

5h 11mnonstop

$217United Airlines

Find Deal

Sat, May 10 - Sat, May 24

6:00 am - 11:35 amEWR-SEA

8h 35m1 stop

11:24 pm - 7:35 amSEA-EWR

5h 11mnonstop

$223United Airlines

Find Deal

Thu, May 29 - Sat, May 31

Useful Info

Low season	February
High season	July
Cheapest flight	$78

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Newark Liberty Airport to Seattle

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.

Verified travelerFlew with Alaska AirlinesPHL-SEAApr 2024

No US airlines have any easy boarding, comfortable planes, decent food offerings, ambiance, etc like they used to. Suggestions: take off baggage fees, start serving real food offerings ( not a snack item), treat all people on board as paying customers instead of just 1st class or premier seating. In other words, all US airlines need to step up their game!

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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Seattle

Seattle (SEA)

SEA

$78 Find Cheap Flights from Pennsylvania to Seattle

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

Cheap Flight Deals from Pennsylvania to Seattle

Recent round-trip flight deals from Pennsylvania to Seattle

Recent one-way flight deals from Pennsylvania to Seattle

Recent last minute flight deals from Pennsylvania to Seattle

Recent direct flight deals from Pennsylvania to Seattle

Good to know

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

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

Cabin class types available on flights to Pennsylvania

Complete your trip to Seattle with a hotel stay or car rental

Find direct flights for Seattle

Flights to other popular destinations

Flights from domestic origins to Seattle

Choose which airport to fly into in Seattle

Find deals for your return flight