What airlines fly to Philadelphia?

Alaska Airlines, United Airlines 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 8 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, Delta, and Southwest 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 09m and 7h 15m, 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 September 2026, there are 6 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.

$113 Cheap Flights from Washington to Philadelphia in 2026/27

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

As of September 2026, there are 83 flights per week flying from State of Washington to Philadelphia. The most common day of the week flights depart is Sat, with 17% of flights taking off on this day.

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

11 flights are operational daily from State of Washington to Philadelphia as of September 2026. The most popular departure time for this route is 9:00PM, with 59% of flights per day taking off in the evening.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Philadelphia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 5:44 amGEG Spokane-PHL Philadelphia

7h 19m1 stop Seattle/Tacoma Intl

5:20 am - 11:50 amPHL Philadelphia-GEG Spokane

9h 30m1 stop Atlanta Hartsfield-Jackson

$291Delta

Thu, Oct 15 - Thu, Oct 22

7:25 pm - 5:44 amGEG Spokane-PHL Philadelphia

7h 19m1 stop Seattle/Tacoma Intl

6:49 pm - 11:44 pmPHL Philadelphia-GEG Spokane

7h 55m1 stop Salt Lake City

$291Delta

Wed, Oct 21 - Fri, Oct 23

2:13 pm - 12:19 amGEG Spokane-PHL Philadelphia

7h 06m1 stop Chicago O'Hare Intl

7:00 am - 3:02 pmPHL Philadelphia-GEG Spokane

11h 02m1 stop Phoenix Sky Harbor Intl

$297American Airlines

Wed, Nov 18 - Mon, Nov 23

5:02 am - 5:11 pmGEG Spokane-PHL Philadelphia

9h 09m1 stop Seattle/Tacoma Intl

6:14 pm - 11:57 pmPHL Philadelphia-GEG Spokane

8h 43m1 stop Seattle/Tacoma Intl

$312Alaska Airlines

Tue, Jan 26 - Wed, Jan 27

2:13 pm - 12:19 amGEG Spokane-PHL Philadelphia

7h 06m1 stop Chicago O'Hare Intl

7:00 am - 3:02 pmPHL Philadelphia-GEG Spokane

11h 02m1 stop Phoenix Sky Harbor Intl

$316American Airlines

Wed, Nov 18 - Mon, Nov 23

1:55 pm - 11:35 pmGEG Spokane-PHL Philadelphia

6h 40m1 stop Denver Intl

3:20 pm - 11:45 pmPHL Philadelphia-GEG Spokane

11h 25m2 stops Chicago Midway Phoenix Sky Harbor Intl

$346Southwest

Wed, Oct 21 - Fri, Oct 23

7:02 am - 9:20 pmGEG Spokane-PHL Philadelphia

11h 18m1 stop San Francisco

2:37 pm - 9:09 pmPHL Philadelphia-GEG Spokane

9h 32m2 stops Washington, D.C. Dulles Intl Denver Intl

$346United Airlines

Wed, Feb 24 - Tue, Mar 2

7:35 am - 9:35 pmGEG Spokane-PHL Philadelphia

11h 00m2 stops Las Vegas Harry Reid Intl Nashville Intl

3:20 pm - 11:45 pmPHL Philadelphia-GEG Spokane

11h 25m2 stops Chicago Midway Phoenix Sky Harbor Intl

$351Southwest

Wed, Oct 21 - Fri, Oct 23

4:39 pm - 5:32 amGEG Spokane-PHL Philadelphia

9h 53m1 stop Seattle/Tacoma Intl

6:46 pm - 11:54 pmPHL Philadelphia-GEG Spokane

8h 08m1 stop Seattle/Tacoma Intl

$362Alaska Airlines

Wed, Nov 18 - Mon, Nov 23

7:00 am - 5:38 pmGEG Spokane-PHL Philadelphia

7h 38m1 stop Chicago O'Hare Intl

9:45 am - 5:53 pmPHL Philadelphia-GEG Spokane

11h 08m2 stops Chicago O'Hare Intl Denver Intl

$368United Airlines

Tue, Jan 26 - Wed, Jan 27

Cheap last minute flights

Enter your travel dates to find the best prices.

7:11 am - 7:15 pmSEA Seattle/Tacoma Intl-PHL Philadelphia

9h 04m1 stop San Francisco

5:08 pm - 10:56 pmPHL Philadelphia-SEA Seattle/Tacoma Intl

8h 48m1 stop Chicago O'Hare Intl

$435United Airlines

Tue, Sep 22 - Sat, Sep 26

5:00 am - 3:48 pmSEA Seattle/Tacoma Intl-PHL Philadelphia

7h 48m1 stop Denver Intl

10:40 am - 3:51 pmPHL Philadelphia-SEA Seattle/Tacoma Intl

8h 11m1 stop Washington, D.C. Dulles Intl

$435United Airlines

Sat, Sep 26 - Tue, Sep 29

11:10 am - 11:55 pmSEA Seattle/Tacoma Intl-PHL Philadelphia

9h 45m1 stop Denver Intl

10:45 am - 5:55 pmPHL Philadelphia-SEA Seattle/Tacoma Intl

10h 10m1 stop Chicago Midway

$435Southwest

Tue, Sep 22 - Wed, Sep 23

11:10 am - 11:55 pmSEA Seattle/Tacoma Intl-PHL Philadelphia

9h 45m1 stop Denver Intl

10:45 am - 5:55 pmPHL Philadelphia-SEA Seattle/Tacoma Intl

10h 10m1 stop Chicago Midway

$435Southwest

Tue, Sep 22 - Wed, Sep 23

9:30 pm - 5:50 amSEA Seattle/Tacoma Intl-PHL Philadelphia

5h 20mnonstop

7:05 am - 9:56 amPHL Philadelphia-SEA Seattle/Tacoma Intl

5h 51mnonstop

$437Delta

Sat, Sep 26 - Wed, Sep 30

9:30 pm - 5:50 amSEA Seattle/Tacoma Intl-PHL Philadelphia

5h 20mnonstop

7:05 am - 9:56 amPHL Philadelphia-SEA Seattle/Tacoma Intl

5h 51mnonstop

$437Delta

Wed, Sep 23 - Wed, Sep 30

10:45 pm - 7:00 amSEA Seattle/Tacoma Intl-PHL Philadelphia

5h 15mnonstop

7:35 pm - 10:57 pmPHL Philadelphia-SEA Seattle/Tacoma Intl

6h 22mnonstop

$455American Airlines

Sat, Sep 26 - Tue, Sep 29

10:45 pm - 7:00 amSEA Seattle/Tacoma Intl-PHL Philadelphia

5h 15mnonstop

5:49 pm - 12:11 amPHL Philadelphia-SEA Seattle/Tacoma Intl

9h 22m1 stop Chicago O'Hare Intl

$465American Airlines

Sat, Sep 26 - Tue, Sep 29

9:27 pm - 5:40 amSEA Seattle/Tacoma Intl-PHL Philadelphia

5h 13mnonstop

7:00 am - 9:51 amPHL Philadelphia-SEA Seattle/Tacoma Intl

5h 51mnonstop

$491Alaska Airlines

Tue, Sep 22 - Sat, Sep 26

7:24 pm - 3:45 pmGEG Spokane-PHL Philadelphia

17h 21m1 stop Portland

7:02 am - 12:54 pmPHL Philadelphia-GEG Spokane

8h 52m1 stop Seattle/Tacoma Intl

$508Alaska Airlines

Tue, Sep 22 - Mon, Oct 5

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Southwest flights from State of Washington to Philadelphia

Our best Southwest deals on State of Washington to Philadelphia flight tickets

Southwest

Oct 21

GEG1:55 pmSpokane

6h 40m

1 stop

PHL11:35 pmPhiladelphia

Oct 23

PHL3:20 pmPhiladelphia

11h 25m

2 stops

GEG11:45 pmSpokane

$346

Southwest

Oct 21

GEG7:35 amSpokane

11h 00m

2 stops

PHL9:35 pmPhiladelphia

Oct 23

PHL3:20 pmPhiladelphia

11h 25m

2 stops

GEG11:45 pmSpokane

$351

Southwest

Dec 7

SEA8:15 pmSeattle/Tacoma Intl

11h 50m

2 stops

PHL11:05 amPhiladelphia

Jan 4

PHL6:25 pmPhiladelphia

9h 05m

1 stop

SEA12:30 amSeattle/Tacoma Intl

$369

Frontier flights from State of Washington to Philadelphia

Our best Frontier deals on State of Washington to Philadelphia flight tickets

Frontier

Oct 28

SEA12:14 pmSeattle/Tacoma Intl

27h 05m

2 stops

PHL6:19 pmPhiladelphia

Nov 3

PHL12:36 pmPhiladelphia

25h 23m

2 stops

SEA10:59 amSeattle/Tacoma Intl

$355

Frontier

Oct 18

SEA9:16 pmSeattle/Tacoma Intl

31h 02m

1 stop

PHL7:18 amPhiladelphia

Oct 21

PHL8:44 pmPhiladelphia

15h 14m

1 stop

SEA8:58 amSeattle/Tacoma Intl

$356

Frontier

Oct 20

SEA4:27 pmSeattle/Tacoma Intl

28h 23m

1 stop

PHL11:50 pmPhiladelphia

Oct 27

PHL8:30 amPhiladelphia

29h 29m

2 stops

SEA10:59 amSeattle/Tacoma Intl

$358

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

Cheapest round-trip

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Thu 10/15

7:25 pm-5:44 am

1 stop7h 19m

Philadelphia

Thu 10/22

5:20 am-11:50 am

1 stop9h 30m

$291

Quickest round-trip

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 10/21

7:25 pm-5:44 am

1 stop7h 19m

Philadelphia

Fri 10/23

6:49 pm-11:44 pm

1 stop7h 55m

$291

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 11/18

2:13 pm-12:19 am

1 stop7h 06m

Philadelphia

Mon 11/23

7:00 am-3:02 pm

1 stop11h 02m

$297

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Tue 1/26

5:02 am-5:11 pm

1 stop9h 09m

Philadelphia

Wed 1/27

6:14 pm-11:57 pm

1 stop8h 43m

$312

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 11/18

2:13 pm-12:19 am

1 stop7h 06m

Philadelphia

Mon 11/23

7:00 am-3:02 pm

1 stop11h 02m

$316

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 10/21

1:55 pm-11:35 pm

1 stop6h 40m

Philadelphia

Fri 10/23

3:20 pm-11:45 pm

2 stops11h 25m

$346

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 2/24

7:02 am-9:20 pm

1 stop11h 18m

Philadelphia

Tue 3/2

2:37 pm-9:09 pm

2 stops9h 32m

$346

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 10/21

7:35 am-9:35 pm

2 stops11h 00m

Philadelphia

Fri 10/23

3:20 pm-11:45 pm

2 stops11h 25m

$351

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Wed 11/18

4:39 pm-5:32 am

1 stop9h 53m

Philadelphia

Mon 11/23

6:46 pm-11:54 pm

1 stop8h 08m

$362

SpokanePhiladelphia

GEG Spokane - PHL Philadelphia

GEGPHL

Spokane

Tue 1/26

7:00 am-5:38 pm

1 stop7h 38m

Philadelphia

Wed 1/27

9:45 am-5:53 pm

2 stops11h 08m

$368

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 February. Flight prices, which tend to average around $330, 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 $376.

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 Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $422. 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 $552.

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 $465. 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 from Washington 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 $422 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 $389 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between State of Washington to Philadelphia.

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	$113
Fastest flight time	5h 01m
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 $113. The best round-trip flight deal from State of Washington to Philadelphia found on momondo in the last 72 hours is $291.

The fastest flight from State of Washington to Philadelphia takes 5h 01m

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

Frequently asked questions about flying from Washington to Philadelphia

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 September 2026, there are 6 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 40.11% of the total bookings. Other popular models include Airbus A321-100/200 with 37.66%, Boeing 737-800 Passenger/BBJ2 (winglets) with 7.66%, and Boeing 737-800 with 2.66%.

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
Frontier	PriceFrom $167	Free Cancellation	Rating 5.6 2,587 reviews	Search Frontier flights
Delta	PriceFrom $184	Free Cancellation	Rating 7.8 8,590 reviews	Search Delta flights
American Airlines	PriceFrom $239	Free Cancellation	Rating 7.0 12,072 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 7.9 12,954 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 10,220 reviews	Search United Airlines flights
Southwest	PriceFrom $299	Free Cancellation	Rating 8.0 4,193 reviews	Search Southwest flights

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Chester

Vineland

Avalon

Lewes

Elkton

Pottstown

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.