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 Pasco, and flying into Philadelphia, then you can expect flight times to average 5h 10m and 7h 01m, respectively.

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

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

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 52% 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.

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 June 2026, there are 7 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.

$125 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 June 2026, there are 76 flights per week flying from State of Washington to Philadelphia. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

10 flights are operational daily from State of Washington to Philadelphia as of June 2026. The most popular departure time for this route is 10:00PM, with 49% of flights per day taking off at noon.

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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.

5:00 pm - 5:41 am

GEG

PHL

9h 41m

1 stop

7:05 am - 1:02 pm

PHL

GEG

8h 57m

1 stop

$311Delta

Thu, Oct 15 - Mon, Oct 19

7:00 am - 6:04 pm

GEG

PHL

8h 04m

1 stop

7:05 am - 12:08 pm

PHL

GEG

8h 03m

1 stop

$317Delta

Wed, Jul 29 - Thu, Aug 6

7:41 pm - 11:49 am

SEA

PHL

13h 08m

1 stop

12:54 pm - 9:17 am

PHL

SEA

23h 23m

1 stop

$330Frontier

Sat, Jul 4 - Mon, Jul 13

7:06 pm - 11:49 am

SEA

PHL

13h 43m

1 stop

8:37 pm - 9:04 am

PHL

SEA

15h 27m

1 stop

$331Frontier

Wed, Jul 29 - Thu, Aug 6

6:30 am - 8:39 pm

GEG

PHL

11h 09m

1 stop

7:05 am - 2:02 pm

PHL

GEG

9h 57m

1 stop

$333American Airlines

Fri, Jul 17 - Mon, Jul 20

8:13 pm - 6:00 am

SEA

PHL

30h 47m

1 stop

7:33 am - 10:32 am

PHL

SEA

5h 59mnonstop

$333Multiple Airlines

Tue, Jul 21 - Tue, Jul 28

9:25 pm - 5:40 am

SEA

PHL

5h 15mnonstop

3:25 pm - 10:38 pm

PHL

SEA

10h 13m

1 stop

$336Multiple Airlines

Sun, Oct 11 - Sat, Oct 17

8:28 am - 4:43 pm

SEA

PHL

5h 15mnonstop

7:33 am - 10:32 am

PHL

SEA

5h 59mnonstop

$337Alaska Airlines

Fri, Jul 3 - Sat, Jul 4

6:30 am - 8:39 pm

GEG

PHL

11h 09m

1 stop

7:05 am - 1:59 pm

PHL

GEG

9h 54m

1 stop

$340American Airlines

Thu, Jul 16 - Tue, Jul 21

7:00 am - 3:06 pm

PDX

PHL

5h 06mnonstop

4:06 pm - 6:57 pm

PHL

PDX

5h 51mnonstop

$378Alaska Airlines

Sun, Oct 25 - Tue, Oct 27

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Delta flights from State of Washington to Philadelphia

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

Delta

Oct 15

GEG7:07 pmSpokane

7h 34m

1 stop

PHL5:41 amPhiladelphia

Oct 19

PHL7:05 amPhiladelphia

8h 57m

1 stop

GEG1:02 pmSpokane

$311

Delta

Jul 29

GEG7:00 amSpokane

8h 04m

1 stop

PHL6:04 pmPhiladelphia

Aug 6

PHL7:05 amPhiladelphia

8h 03m

1 stop

GEG12:08 pmSpokane

$317

Delta

Sep 2

SEA9:30 pmSeattle/Tacoma Intl

5h 20m

PHL5:50 amPhiladelphia

Sep 7

PHL7:05 amPhiladelphia

5h 56m

SEA10:01 amSeattle/Tacoma Intl

$329

United Airlines flights from State of Washington to Philadelphia

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

United Airlines

Sep 22

SEA7:00 amSeattle/Tacoma Intl

7h 54m

1 stop

PHL5:54 pmPhiladelphia

Sep 23

PHL3:48 pmPhiladelphia

10h 16m

1 stop

SEA11:04 pmSeattle/Tacoma Intl

$383

United Airlines

Jul 2

GEG12:37 pmSpokane

9h 46m

1 stop

PHL1:23 amPhiladelphia

Jul 4

PHL8:05 amPhiladelphia

13h 21m

2 stops

GEG6:26 pmSpokane

$384

United Airlines

Jul 18

PDX10:40 pmPortland

8h 50m

1 stop

PHL10:30 amPhiladelphia

Jul 22

PHL5:00 pmPhiladelphia

8h 30m

1 stop

PDX10:30 pmPortland

$392

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 - PHL

GEGPHL

Spokane

Thu 10/15

5:00 pm-5:41 am

1 stop9h 41m

Philadelphia

Mon 10/19

7:05 am-1:02 pm

1 stop8h 57m

$311

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Wed 7/29

7:00 am-6:04 pm

1 stop8h 04m

Philadelphia

Thu 8/6

7:05 am-12:08 pm

1 stop8h 03m

$317

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Sat 7/4

7:41 pm-11:49 am

1 stop13h 08m

Philadelphia

Mon 7/13

12:54 pm-9:17 am

1 stop23h 23m

$330

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Wed 7/29

7:06 pm-11:49 am

1 stop13h 43m

Philadelphia

Thu 8/6

8:37 pm-9:04 am

1 stop15h 27m

$331

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 7/17

6:30 am-8:39 pm

1 stop11h 09m

Philadelphia

Mon 7/20

7:05 am-2:02 pm

1 stop9h 57m

$333

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Tue 7/21

8:13 pm-6:00 am

1 stop30h 47m

Philadelphia

Tue 7/28

7:33 am-10:32 am

Nonstop5h 59m

$333

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Sun 10/11

9:25 pm-5:40 am

Nonstop5h 15m

Philadelphia

Sat 10/17

3:25 pm-10:38 pm

1 stop10h 13m

$336

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Fri 7/3

8:28 am-4:43 pm

Nonstop5h 15m

Philadelphia

Sat 7/4

7:33 am-10:32 am

Nonstop5h 59m

$337

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 7/16

6:30 am-8:39 pm

1 stop11h 09m

Philadelphia

Tue 7/21

7:05 am-1:59 pm

1 stop9h 54m

$340

Quickest round-trip

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Sun 10/25

7:00 am-3:06 pm

Nonstop5h 06m

Philadelphia

Tue 10/27

4:06 pm-6:57 pm

Nonstop5h 51m

$378

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 March. Flight prices, which tend to average around $138, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from State of Washington averaging around $139.

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 $534.

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 $451. 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 $416 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 $366 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?

You could potentially save up to 15% 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	$214
Fastest flight time	4h 55m
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 $214. The best round-trip flight deal from State of Washington to Philadelphia found on momondo in the last 72 hours is $385.

The fastest flight from State of Washington to Philadelphia takes 4h 55m

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).

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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 June 2026, there are 7 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 A321-100/200, making up 38.19% of the total bookings. Other popular models include Airbus A321neo with 35.82%, Boeing 737-800 with 8.56%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 4.60%.

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
Alaska Airlines	PriceFrom $139	Free Cancellation	Rating 7.9 12,563 reviews	Search Alaska Airlines flights
Frontier	PriceFrom $149	Free Cancellation	Rating 5.6 2,870 reviews	Search Frontier flights
Delta	PriceFrom $158	Free Cancellation	Rating 7.8 8,425 reviews	Search Delta flights
United Airlines	PriceFrom $206	Free Cancellation	Rating 7.4 9,874 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $228	Free Cancellation	Rating 7.8 2,826 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $239	Free Cancellation	Rating 7.1 11,744 reviews	Search American Airlines flights
Southwest	PriceFrom $295	Free Cancellation	Rating 7.9 4,242 reviews	Search Southwest flights

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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.