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Cheap flights from Pennsylvania to Washington from $84

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 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Pennsylvania to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:00 pm - 12:01 pm
DCA
-
SEA
25h 01m
1 stop
Frontier Logo
9:36 pm - 9:59 pm
SEA
-
DCA
21h 23m
2 stops
$191Frontier
Wed, Mar 4 - Mon, Mar 9
Frontier Logo
6:00 pm - 9:27 am
DCA
-
SEA
18h 27m
1 stop
Frontier Logo
6:57 pm - 9:59 pm
SEA
-
DCA
24h 02m
1 stop
$200Frontier
Mon, Apr 20 - Wed, Apr 22
Alaska Airlines Logo
9:00 am - 12:29 pm
EWR
-
SEA
6h 29mnonstop
Alaska Airlines Logo
3:11 pm - 11:29 pm
SEA
-
EWR
5h 18mnonstop
$212Alaska Airlines
Wed, Mar 11 - Wed, Mar 11
Alaska Airlines Logo
6:14 pm - 9:28 pm
EWR
-
SEA
6h 14mnonstop
Alaska Airlines Logo
6:10 am - 2:27 pm
SEA
-
EWR
5h 17mnonstop
$215Alaska Airlines
Sat, Mar 21 - Sat, Mar 28
American Airlines Logo
11:30 am - 6:29 pm
IAD
-
SEA
9h 59m
1 stop
American Airlines Logo
5:37 am - 4:50 pm
SEA
-
IAD
8h 13m
1 stop
$217American Airlines
Tue, Feb 17 - Thu, Feb 19
American Airlines Logo
4:34 pm - 9:57 pm
DCA
-
SEA
8h 23m
1 stop
American Airlines Logo
11:57 pm - 10:59 am
SEA
-
DCA
8h 02m
1 stop
$217American Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
8:28 pm - 11:51 pm
EWR
-
SEA
6h 23mnonstop
United Airlines Logo
11:59 pm - 8:08 am
SEA
-
EWR
5h 09mnonstop
$217United Airlines
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
8:28 pm - 11:51 pm
EWR
-
SEA
6h 23mnonstop
United Airlines Logo
12:25 pm - 8:44 pm
SEA
-
EWR
5h 19mnonstop
$218United Airlines
Fri, Feb 27 - Sat, Mar 7
Delta Logo
6:55 pm - 10:22 pm
JFK
-
SEA
6h 27mnonstop
Delta Logo
2:00 pm - 10:15 pm
SEA
-
JFK
5h 15mnonstop
$237Delta
Tue, Feb 24 - Sat, Feb 28
Delta Logo
7:30 am - 10:29 am
IAD
-
SEA
5h 59mnonstop
Delta Logo
3:20 pm - 11:10 pm
SEA
-
IAD
4h 50mnonstop
$237Delta
Wed, Feb 25 - Mon, Mar 2

Hawaiian Airlines flights from Pennsylvania to State of Washington

Our best Hawaiian Airlines deals on Pennsylvania to State of Washington flight tickets
Hawaiian Airlines
Feb 28
JFK5:00 pmNew York John F Kennedy Intl
8h 18m
1 stop
SEA10:18 pmSeattle/Tacoma Intl
Mar 7
SEA7:05 amSeattle/Tacoma Intl
5h 20m
JFK3:25 pmNew York John F Kennedy Intl
$232
Hawaiian Airlines
Mar 10
JFK6:36 pmNew York John F Kennedy Intl
6h 36m
SEA10:12 pmSeattle/Tacoma Intl
Mar 17
SEA3:40 pmSeattle/Tacoma Intl
11h 43m
1 stop
JFK6:23 amNew York John F Kennedy Intl
$238
Hawaiian Airlines
Mar 21
DCA8:59 amWashington, D.C. Reagan-National
9h 58m
1 stop
SEA3:57 pmSeattle/Tacoma Intl
Mar 28
SEA7:40 amSeattle/Tacoma Intl
9h 20m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$240

Frontier flights from Pennsylvania to State of Washington

Our best Frontier deals on Pennsylvania to State of Washington flight tickets
Frontier
Mar 4
DCA2:00 pmWashington, D.C. Reagan-National
25h 01m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
Mar 9
SEA9:36 pmSeattle/Tacoma Intl
21h 23m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
$191
Frontier
Apr 20
DCA6:00 pmWashington, D.C. Reagan-National
18h 27m
1 stop
SEA9:27 amSeattle/Tacoma Intl
Apr 22
SEA6:57 pmSeattle/Tacoma Intl
24h 02m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$200
Frontier
Mar 4
DCA2:00 pmWashington, D.C. Reagan-National
25h 01m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
Mar 10
SEA10:08 pmSeattle/Tacoma Intl
20h 51m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
$202

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 4, 2026.
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

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Wed 3/4

2:00 pm-12:01 pm

1 stop25h 01m

Seattle/Tacoma Intl

Mon 3/9

9:36 pm-9:59 pm

2 stops21h 23m

$191

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:27 am

1 stop18h 27m

Seattle/Tacoma Intl

Wed 4/22

6:57 pm-9:59 pm

1 stop24h 02m

$200

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 3/11

9:00 am-12:29 pm

Nonstop6h 29m

Seattle/Tacoma Intl

Wed 3/11

3:11 pm-11:29 pm

Nonstop5h 18m

$212

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 3/21

6:14 pm-9:28 pm

Nonstop6h 14m

Seattle/Tacoma Intl

Sat 3/28

6:10 am-2:27 pm

Nonstop5h 17m

$215

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 2/17

11:30 am-6:29 pm

1 stop9h 59m

Seattle/Tacoma Intl

Thu 2/19

5:37 am-4:50 pm

1 stop8h 13m

$217

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Thu 2/19

4:34 pm-9:57 pm

1 stop8h 23m

Seattle/Tacoma Intl

Mon 2/23

11:57 pm-10:59 am

1 stop8h 02m

$217

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 3/3

8:28 pm-11:51 pm

Nonstop6h 23m

Seattle/Tacoma Intl

Tue 3/10

11:59 pm-8:08 am

Nonstop5h 09m

$217

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 2/27

8:28 pm-11:51 pm

Nonstop6h 23m

Seattle/Tacoma Intl

Sat 3/7

12:25 pm-8:44 pm

Nonstop5h 19m

$218

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

Tue 2/24

6:55 pm-10:22 pm

Nonstop6h 27m

Seattle/Tacoma Intl

Sat 2/28

2:00 pm-10:15 pm

Nonstop5h 15m

$237

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 2/25

7:30 am-10:29 am

Nonstop5h 59m

Seattle/Tacoma Intl

Mon 3/2

3:20 pm-11:10 pm

Nonstop4h 50m

$237

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

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

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 March is also cheap. Prices for this month can be found on momondo for an average of $337.

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 Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $459. 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 $586.

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 in the evening when flights can be purchased for as low as $444. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $512 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 $406 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 $369 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

$212

Fastest flight time

5h 18m

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 $212. The best round-trip flight deal from Pennsylvania to State of Washington found on momondo in the last 72 hours is $297.
The fastest flight from Pennsylvania to State of Washington takes 5h 18m
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?

  • 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?

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
FrontierPriceFrom $99Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $106Free CancellationRating
6.3
8,415 reviews
Search Spirit Airlines flights
DeltaPriceFrom $149Free CancellationRating
7.9
8,147 reviews
Search Delta flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,274 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $173Free CancellationRating
7.8
2,831 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
11,229 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $180Free CancellationRating
8.0
11,839 reviews
Search Alaska Airlines flights
Sun Country AirPriceFrom $211Free CancellationRating
6.9
342 reviews
Search Sun Country Air flights
United AirlinesPriceFrom $221Free CancellationRating
7.4
9,236 reviews
Search United 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.

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