How long is the flight from Pennsylvania to State of Washington?

If you’re flying from a popular airport in Pennsylvania, such as Pittsburgh or Philadelphia, and flying into State of Washington, then you can expect flight times to average 5h 16m and 5h 59m, respectively.

What airlines fly to State of Washington?

American Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to State of Washington from Pennsylvania according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 9 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

American Airlines, Alaska Airlines, and United Airlines are the most popular carriers operating from Pennsylvania to Washington

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

Prices for flights from Pennsylvania to Washington refresh daily.

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

As of December 2025, there are 10 operators available to choose from for flights from Pennsylvania to Washington.

How old do you have to be to fly from Pennsylvania to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$98 Cheap Flights from Pennsylvania to Washington in 2025/26

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

As of December 2025, there are 42 flights per day flying from Pennsylvania to State of Washington. The most common time of day flights depart is 6:00PM, with 65% of flights taking off in the evening.

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

296 flights are operational weekly from Pennsylvania to State of Washington as of December 2025. The most popular departure day for this route is Wed, with 36% of flights per week taking off on this day.

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 10:29 am

IAD

SEA

5h 59mnonstop

11:10 pm - 11:49 am

SEA

IAD

9h 39m1 stop

$209Delta

Wed, Jan 7 - Tue, Jan 13

4:44 pm - 7:43 pm

DCA

SEA

5h 59mnonstop

11:10 pm - 8:53 am

SEA

DCA

6h 43m1 stop

$209Delta

Wed, Jan 7 - Mon, Jan 12

5:55 pm - 8:57 pm

IAD

SEA

6h 02mnonstop

8:10 am - 4:16 pm

SEA

IAD

5h 06mnonstop

$216United Airlines

Tue, Jan 6 - Tue, Jan 13

6:30 am - 1:49 pm

EWR

SEA

10h 19m1 stop

9:45 pm - 9:30 am

SEA

EWR

8h 45m1 stop

$217American Airlines

Fri, Jan 9 - Sun, Jan 11

7:29 pm - 10:54 pm

EWR

SEA

6h 25mnonstop

10:48 pm - 6:59 pm

SEA

EWR

17h 11m1 stop

$218Alaska Airlines

Sat, Feb 14 - Thu, Feb 19

6:56 pm - 9:18 am

DCA

SEA

17h 22m1 stop

7:15 am - 9:00 pm

SEA

DCA

10h 45m1 stop

$218Alaska Airlines

Thu, Jan 8 - Mon, Jan 12

5:55 pm - 8:57 pm

IAD

SEA

6h 02mnonstop

8:10 am - 4:16 pm

SEA

IAD

5h 06mnonstop

$218United Airlines

Fri, Jan 16 - Fri, Jan 23

1:08 pm - 8:45 pm

IAD

SEA

10h 37m1 stop

9:45 pm - 10:58 am

SEA

IAD

10h 13m1 stop

$224American Airlines

Sat, Jan 17 - Mon, Jan 19

6:08 pm - 9:28 pm

EWR

SEA

6h 20mnonstop

8:15 pm - 4:22 pm

SEA

EWR

17h 07m1 stop

$225Hawaiian Airlines

Sat, Jan 17 - Tue, Jan 27

6:08 pm - 9:28 pm

EWR

SEA

6h 20mnonstop

10:09 am - 6:24 pm

SEA

EWR

5h 15mnonstop

$228Hawaiian Airlines

Sat, Jan 17 - Wed, Jan 21

Delta flights from Pennsylvania to State of Washington

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

Delta

Jan 7

IAD7:30 amWashington, D.C. Dulles Intl

5h 59m

SEA10:29 amSeattle/Tacoma Intl

Jan 14

SEA1:38 pmSeattle/Tacoma Intl

7h 10m

1 stop

IAD11:48 pmWashington, D.C. Dulles Intl

$209

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Delta

Jan 10

IAD7:30 amWashington, D.C. Dulles Intl

5h 59m

SEA10:29 amSeattle/Tacoma Intl

Jan 17

SEA6:15 amSeattle/Tacoma Intl

10h 09m

1 stop

IAD7:24 pmWashington, D.C. Dulles Intl

$210

Find similar

Delta

Jan 14

IAD6:00 amWashington, D.C. Dulles Intl

7h 42m

1 stop

SEA10:42 amSeattle/Tacoma Intl

Jan 21

SEA12:00 pmSeattle/Tacoma Intl

8h 57m

1 stop

IAD11:57 pmWashington, D.C. Dulles Intl

$219

Find similar

United Airlines flights from Pennsylvania to State of Washington

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

United Airlines

Jan 6

IAD5:55 pmWashington, D.C. Dulles Intl

6h 02m

SEA8:57 pmSeattle/Tacoma Intl

Jan 13

SEA8:10 amSeattle/Tacoma Intl

5h 06m

IAD4:16 pmWashington, D.C. Dulles Intl

$216

Find similar

United Airlines

Jan 16

IAD5:55 pmWashington, D.C. Dulles Intl

6h 02m

SEA8:57 pmSeattle/Tacoma Intl

Jan 23

SEA8:10 amSeattle/Tacoma Intl

5h 06m

IAD4:16 pmWashington, D.C. Dulles Intl

$218

Find similar

United Airlines

Feb 27

IAD5:55 pmWashington, D.C. Dulles Intl

6h 01m

SEA8:56 pmSeattle/Tacoma Intl

Mar 2

SEA8:17 amSeattle/Tacoma Intl

5h 02m

IAD4:19 pmWashington, D.C. Dulles Intl

$227

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 1/7

7:30 am-10:29 am

Nonstop5h 59m

Seattle/Tacoma Intl

Tue 1/13

11:10 pm-11:49 am

1 stop9h 39m

$209

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Wed 1/7

4:44 pm-7:43 pm

Nonstop5h 59m

Seattle/Tacoma Intl

Mon 1/12

11:10 pm-8:53 am

1 stop6h 43m

$209

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 1/6

5:55 pm-8:57 pm

Nonstop6h 02m

Seattle/Tacoma Intl

Tue 1/13

8:10 am-4:16 pm

Nonstop5h 06m

$216

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 1/9

6:30 am-1:49 pm

1 stop10h 19m

Seattle/Tacoma Intl

Sun 1/11

9:45 pm-9:30 am

1 stop8h 45m

$217

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 2/14

7:29 pm-10:54 pm

Nonstop6h 25m

Seattle/Tacoma Intl

Thu 2/19

10:48 pm-6:59 pm

1 stop17h 11m

$218

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Thu 1/8

6:56 pm-9:18 am

1 stop17h 22m

Seattle/Tacoma Intl

Mon 1/12

7:15 am-9:00 pm

1 stop10h 45m

$218

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 1/16

5:55 pm-8:57 pm

Nonstop6h 02m

Seattle/Tacoma Intl

Fri 1/23

8:10 am-4:16 pm

Nonstop5h 06m

$218

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 1/17

1:08 pm-8:45 pm

1 stop10h 37m

Seattle/Tacoma Intl

Mon 1/19

9:45 pm-10:58 am

1 stop10h 13m

$224

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 1/17

6:08 pm-9:28 pm

Nonstop6h 20m

Seattle/Tacoma Intl

Tue 1/27

8:15 pm-4:22 pm

1 stop17h 07m

$225

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 1/17

6:08 pm-9:28 pm

Nonstop6h 20m

Seattle/Tacoma Intl

Wed 1/21

10:09 am-6:24 pm

Nonstop5h 15m

$228

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

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 State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Pennsylvania, with most prices found around $317. If you aren’t able to travel to State of Washington during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $356.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Pennsylvania to State of Washington is on a Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $465. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Pennsylvania to State of Washington for around $601.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $416. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $519 on average. Flights to State of Washington from Pennsylvania in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Pennsylvania to Washington flight route?

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

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Pennsylvania for as low as $378 on momondo.

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

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

You could potentially save up to 4% on your flight if you consider stops on a Pennsylvania to State of Washington flight.

Cheap Pennsylvania to State of Washington flight deals and tips

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

Best Price Found	$228
Fastest flight time	5h 22m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Pennsylvania in the past 72 hours is $228. The best round-trip flight deal from Pennsylvania to State of Washington found on momondo in the last 72 hours is $316.

The fastest flight from Pennsylvania to State of Washington takes 5h 22m

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

There are 96 airports in State of Washington. From Pennsylvania there are direct flights to Portland (PDX), Seattle/Tacoma Intl (SEA).

Search flight deals

When did momondo last update prices for flights from Pennsylvania to Washington?
Prices for flights from Pennsylvania to Washington refresh daily.
How many operators does momondo search for flights from Pennsylvania to Washington?
As of December 2025, there are 10 operators available to choose from for flights from Pennsylvania to Washington.
How old do you have to be to fly from Pennsylvania to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Pennsylvania to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from Pennsylvania to State of Washington is Boeing 737-900 Passenger/BBJ3 (winglets), representing 20.83% of all bookings. The subsequent popular models are Airbus A321-100/200 at 19.40%, Boeing 737 MAX 9 at 16.95%, and Airbus A321neo at 11.64%.

Best airlines flying from Pennsylvania to State of Washington

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $99	Free Cancellation	Rating 5.8 3,080 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $115	Free Cancellation	Rating 6.3 8,189 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $157	Free Cancellation	Rating 7.9 4,252 reviews	Search Southwest flights
American Airlines	PriceFrom $178	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $190	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
United Airlines	PriceFrom $232	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $235	Free Cancellation	Rating 7.8 2,820 reviews	Search Hawaiian Airlines flights
Sun Country Air	PriceFrom $238	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
Alaska Airlines	PriceFrom $255	Free Cancellation	Rating 8.0 11,479 reviews	Search Alaska Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Pennsylvania to Washington. momondo saves you time and could save you money on your trip.

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

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

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

momondo helps you find the best flight between Pennsylvania and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Pennsylvania to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your State of Washington trip

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Cheap flights from Pennsylvania to Washington from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Washington departing on 1/16. 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

Filter for what you want

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Find the cheapest flights from Pennsylvania to Washington

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Delta flights from Pennsylvania to State of Washington

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

United Airlines flights from Pennsylvania to State of Washington

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

momondo Fare Finder

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

See travel insights to Washington from

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

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

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

What is the cheapest Pennsylvania to Washington flight route?

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

How far in advance should I book a flight to State of Washington?

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

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

You could potentially save up to 4% on your flight if you consider stops on a Pennsylvania to State of Washington flight.

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

American Airlines, Alaska Airlines, and United Airlines are the most popular carriers operating from Pennsylvania to Washington

What airlines fly to State of Washington?

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

As of December 2025, there are 42 flights per day flying from Pennsylvania to State of Washington. The most common time of day flights depart is 6:00PM, with 65% of flights taking off in the evening.

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

296 flights are operational weekly from Pennsylvania to State of Washington as of December 2025. The most popular departure day for this route is Wed, with 36% of flights per week taking off on this day.

How long is the flight from Pennsylvania to State of Washington?

If you’re flying from a popular airport in Pennsylvania, such as Pittsburgh or Philadelphia, and flying into State of Washington, then you can expect flight times to average 5h 16m and 5h 59m, respectively.

Cheap Pennsylvania to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

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

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

How old do you have to be to fly from Pennsylvania to Washington?

What documentation or ID do you need to fly to Washington?

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

Best airlines flying from Pennsylvania to State of Washington

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

Why use momondo?

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

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

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

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

An easier way to manage your State of Washington 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 Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo