What airlines fly to Philadelphia?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Philadelphia from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 10 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington to Philadelphia?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Washington to Philadelphia

How long does it take to fly to Philadelphia?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Philadelphia, then you can expect flight times to average 5h 14m and 6h 45m, respectively.

When did momondo last update prices for flights from Washington to Philadelphia Airport?

Prices for flights from Washington to Philadelphia Airport are updated daily.

How many operators does momondo search for flights from Washington to Philadelphia Airport?

As of January 2026, there are 8 operators available to choose from for flights from Washington to Philadelphia Airport.

How old do you have to be to fly from Washington to Philadelphia Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$96 Cheap Flights from Washington to Philadelphia in 2026

Q: How many flights depart from State of Washington to Philadelphia on average per week?

As of January 2026, there are 43 flights per week flying from State of Washington to Philadelphia. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:57 pm - 7:02 am

SEA

PHL

5h 05mnonstop

6:35 pm - 9:57 pm

PHL

SEA

6h 22mnonstop

$237American Airlines

Thu, Feb 26 - Mon, Mar 2

1:16 pm - 5:55 pm

SEA

PHL

25h 39m

1 stop

5:47 pm - 11:19 am

PHL

SEA

20h 32m

1 stop

$240Frontier

Thu, Feb 26 - Sun, Mar 1

1:16 pm - 5:55 pm

SEA

PHL

25h 39m

1 stop

11:40 am - 12:01 pm

PHL

SEA

27h 21m

2 stops

$241Frontier

Thu, Feb 19 - Wed, Feb 25

9:19 am - 9:33 pm

SEA

PHL

9h 14m

1 stop

5:00 pm - 10:43 pm

PHL

SEA

8h 43m

1 stop

$253United Airlines

Mon, Feb 23 - Wed, Mar 4

6:00 am - 6:08 pm

SEA

PHL

9h 08m

1 stop

5:32 pm - 9:49 pm

PHL

SEA

7h 17m

1 stop

$257Delta

Fri, Apr 17 - Tue, Apr 21

5:13 pm - 5:35 am

PSC

PHL

9h 22m

1 stop

6:54 pm - 11:39 pm

PHL

PSC

7h 45m

1 stop

$257Delta

Tue, Apr 28 - Tue, May 5

1:44 pm - 11:32 pm

GEG

PHL

6h 48m

1 stop

10:06 am - 9:17 pm

PHL

GEG

14h 11m

2 stops

$262United Airlines

Tue, Feb 24 - Tue, Mar 3

5:13 pm - 5:35 am

PSC

PHL

9h 22m

1 stop

2:59 pm - 11:39 pm

PHL

PSC

11h 40m

2 stops

$262Delta

Tue, Apr 28 - Tue, May 5

6:20 am - 4:20 pm

PDX

PHL

7h 00m

1 stop

5:30 am - 10:15 am

PHL

PDX

7h 45m

1 stop

$327Southwest

Tue, Feb 24 - Wed, Mar 25

6:20 am - 8:20 pm

PDX

PHL

11h 00m

2 stops

5:30 am - 10:15 am

PHL

PDX

7h 45m

1 stop

$332Southwest

Tue, Feb 24 - Wed, Mar 25

American Airlines flights from State of Washington to Philadelphia

Our best American Airlines deals on State of Washington to Philadelphia flight tickets

American Airlines

Feb 26

SEA10:57 pmSeattle/Tacoma Intl

5h 05m

PHL7:02 amPhiladelphia

Mar 2

PHL6:35 pmPhiladelphia

6h 22m

SEA9:57 pmSeattle/Tacoma Intl

$237

American Airlines

Mar 5

GEG12:25 pmSpokane

8h 28m

1 stop

PHL11:53 pmPhiladelphia

Mar 17

PHL5:15 pmPhiladelphia

8h 59m

1 stop

GEG11:14 pmSpokane

$297

American Airlines

Feb 25

SEA10:57 pmSeattle/Tacoma Intl

5h 05m

PHL7:02 amPhiladelphia

Mar 1

PHL5:17 pmPhiladelphia

10h 38m

1 stop

SEA12:55 amSeattle/Tacoma Intl

$322

United Airlines flights from State of Washington to Philadelphia

Our best United Airlines deals on State of Washington to Philadelphia flight tickets

United Airlines

Feb 23

SEA9:19 amSeattle/Tacoma Intl

9h 14m

1 stop

PHL9:33 pmPhiladelphia

Mar 4

PHL5:00 pmPhiladelphia

8h 43m

1 stop

SEA10:43 pmSeattle/Tacoma Intl

$253

United Airlines

Feb 23

SEA7:00 amSeattle/Tacoma Intl

7h 14m

1 stop

PHL5:14 pmPhiladelphia

Mar 4

PHL10:35 amPhiladelphia

11h 28m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

$262

United Airlines

Feb 18

SEA9:19 amSeattle/Tacoma Intl

9h 14m

1 stop

PHL9:33 pmPhiladelphia

Feb 25

PHL12:55 pmPhiladelphia

9h 08m

1 stop

SEA7:03 pmSeattle/Tacoma Intl

$273

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 2/26

10:57 pm-7:02 am

Nonstop5h 05m

Philadelphia

Mon 3/2

6:35 pm-9:57 pm

Nonstop6h 22m

$237

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 2/26

1:16 pm-5:55 pm

1 stop25h 39m

Philadelphia

Sun 3/1

5:47 pm-11:19 am

1 stop20h 32m

$240

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 2/19

1:16 pm-5:55 pm

1 stop25h 39m

Philadelphia

Wed 2/25

11:40 am-12:01 pm

2 stops27h 21m

$241

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Mon 2/23

9:19 am-9:33 pm

1 stop9h 14m

Philadelphia

Wed 3/4

5:00 pm-10:43 pm

1 stop8h 43m

$253

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Fri 4/17

6:00 am-6:08 pm

1 stop9h 08m

Philadelphia

Tue 4/21

5:32 pm-9:49 pm

1 stop7h 17m

$257

PascoPhiladelphia

PSC - PHL

PSCPHL

Pasco Tri Cities

Tue 4/28

5:13 pm-5:35 am

1 stop9h 22m

Philadelphia

Tue 5/5

6:54 pm-11:39 pm

1 stop7h 45m

$257

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 2/24

1:44 pm-11:32 pm

1 stop6h 48m

Philadelphia

Tue 3/3

10:06 am-9:17 pm

2 stops14h 11m

$262

PascoPhiladelphia

PSC - PHL

PSCPHL

Pasco Tri Cities

Tue 4/28

5:13 pm-5:35 am

1 stop9h 22m

Philadelphia

Tue 5/5

2:59 pm-11:39 pm

2 stops11h 40m

$262

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Tue 2/24

6:20 am-4:20 pm

1 stop7h 00m

Philadelphia

Wed 3/25

5:30 am-10:15 am

1 stop7h 45m

$327

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Tue 2/24

6:20 am-8:20 pm

2 stops11h 00m

Philadelphia

Wed 3/25

5:30 am-10:15 am

1 stop7h 45m

$332

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Philadelphia

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

Prices

Airlines

Other information

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from State of Washington is in October. Flight prices, which tend to average around $337, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Philadelphia, with average flight prices from State of Washington averaging around $368.

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

The cheapest day to depart from State of Washington to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $452. On the other hand, Sunday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $572.

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

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from State of Washington to Philadelphia in the evening for as low as $442. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $726.

What is the cheapest Washington to Philadelphia flight route?

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

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

You are more likely to see cheaper flights to Philadelphia from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from State of Washington for as low as $365 on momondo.

What cabin class options are available on Washington to Philadelphia flights?

There are 4 cabin classes available to choose from on Washington to Philadelphia 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 State of Washington to Philadelphia flights?

You could potentially save up to 7% on your flight if you consider stops on a State of Washington to Philadelphia flight.

Cheap State of Washington to Philadelphia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Philadelphia

Best Price Found	$173
Fastest flight time	5h 02m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from State of Washington in the past 72 hours is $173. The best round-trip flight deal from State of Washington to Philadelphia found on momondo in the last 72 hours is $283.

The fastest flight from State of Washington to Philadelphia takes 5h 02m

Direct flights go from State of Washington to Philadelphia every day.

There is 1 airport in Philadelphia. From State of Washington there are direct flights to Philadelphia (PHL).

Search flight deals

When did momondo last update prices for flights from Washington to Philadelphia Airport?
Prices for flights from Washington to Philadelphia Airport are updated daily.
How many operators does momondo search for flights from Washington to Philadelphia Airport?
As of January 2026, there are 8 operators available to choose from for flights from Washington to Philadelphia Airport.
How old do you have to be to fly from Washington to Philadelphia Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Philadelphia?
Based on momondo bookings for flights between State of Washington and Philadelphia, the leading plane model is Airbus A321neo, making up 20.26% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 15.95%, Boeing 737 MAX 9 with 13.36%, and Airbus A321-100/200 with 12.93%.

Best airlines flying from State of Washington to Philadelphia

Compare and see reviews for airlines that fly from State of Washington to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $72	Free Cancellation	Rating 6.3 8,394 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $131	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Delta	PriceFrom $153	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
United Airlines	PriceFrom $206	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $228	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $274	Free Cancellation	Rating 8.0 11,808 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $295	Free Cancellation	Rating 8.0 4,267 reviews	Search Southwest flights

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

King of Prussia

Cherry Hill

Newark

Dewey Beach

Reading

North Wildwood

Avalon

Dover

Lewes

Stone Harbor

Essington

Vineland

New Castle

Pottstown

Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Philadelphia?

Finding the right flight to Philadelphia from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Philadelphia quick and easy, saving you time and money.

Can I find flights from Washington to Philadelphia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Philadelphia from Washington with this policy.

How can momondo help me find flights from Washington to Philadelphia?

Once you have performed a search for Washington to Philadelphia 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 Washington to Philadelphia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Philadelphia from Washington. 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.

An easier way to manage your Philadelphia trip

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Cheap flights from Washington to Philadelphia from $96

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Philadelphia departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Washington to Philadelphia

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American Airlines flights from State of Washington to Philadelphia

Our best American Airlines deals on State of Washington to Philadelphia flight tickets

United Airlines flights from State of Washington to Philadelphia

Our best United Airlines deals on State of Washington to Philadelphia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Philadelphia that are best for you.

See travel insights to Philadelphia from

How to get the cheapest flight ticket from State of Washington to Philadelphia

What is the cheapest month to fly to Philadelphia?

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

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

What is the cheapest Washington to Philadelphia flight route?

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

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

What cabin class options are available on Washington to Philadelphia flights?

There are 4 cabin classes available to choose from on Washington to Philadelphia 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 State of Washington to Philadelphia flights?

You could potentially save up to 7% on your flight if you consider stops on a State of Washington to Philadelphia flight.

What is the cheapest airline that flies from Washington to Philadelphia?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Washington to Philadelphia

What airlines fly to Philadelphia?

How many flights depart from State of Washington to Philadelphia on average per day?

6 flights are operational daily from State of Washington to Philadelphia as of January 2026. The most popular departure time for this route is 6:00AM, with 100% of flights per day taking off at noon.

How many flights depart from State of Washington to Philadelphia on average per week?

As of January 2026, there are 43 flights per week flying from State of Washington to Philadelphia. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.

How long does it take to fly to Philadelphia?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Philadelphia, then you can expect flight times to average 5h 14m and 6h 45m, respectively.

Cheap State of Washington to Philadelphia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Philadelphia

Best Price Found

Fastest flight time

Direct flights

Airports in Philadelphia

When did momondo last update prices for flights from Washington to Philadelphia Airport?

How many operators does momondo search for flights from Washington to Philadelphia Airport?

How old do you have to be to fly from Washington to Philadelphia Airport?

What documentation or ID do you need to fly to Philadelphia Airport?

What is the most popular plane model from State of Washington to Philadelphia?

Best airlines flying from State of Washington to Philadelphia

Compare and see reviews for airlines that fly from State of Washington to Philadelphia with momondo

Traveling to a place near Philadelphia?

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Philadelphia?

Can I find flights from Washington to Philadelphia with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Philadelphia?

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

An easier way to manage your Philadelphia 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Pennsylvania