$59 Find Cheap Flights from Pennsylvania to Washington

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Low seasonFebruary
High seasonJuly
Cheapest flight$59
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Newark Liberty Airport to Seattle

Flights from Pennsylvania to Washington: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Pennsylvania to Washington 
JohnFlew with Alaska AirlinesPIT-SEAJan 2025
They HOT tag your luggage if you have a connecting flight with a short layover, so any time you need to connect from Seattle on a subsequent flight just check to make sure your luggage is handled that way. While I was on board looking out the window, I saw my suitcase being loaded last - LIFO planning so that it would be unloaded first for my connection. Smooth sailing after that…. Great service!
Verified travelerFlew with Alaska AirlinesPIT-SEAOct 2024
Early Wednesday mornings must be the prime time to board because there was no time to stash my watch, etc. into my bag before security since there was almost NO line. Another bonus for morning people.
Verified travelerFlew with Alaska AirlinesPHL-SEAApr 2024
No US airlines have any easy boarding, comfortable planes, decent food offerings, ambiance, etc like they used to. Suggestions: take off baggage fees, start serving real food offerings ( not a snack item), treat all people on board as paying customers instead of just 1st class or premier seating. In other words, all US airlines need to step up their game!

FAQs for booking flights from Pennsylvania to Washington

  • How does KAYAK find such low prices on flights from Pennsylvania to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Pennsylvania to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Pennsylvania to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Pennsylvania to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Pennsylvania to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Washington?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington is Seattle/Tacoma Intl Airport (SEA), with an average flight price of $293.

  • What is the cheapest day to fly to Washington?

    Based on KAYAK data, the cheapest day to fly to Washington is Tuesday where round-trip tickets can be as cheap as $478. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $573 on average.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally in the afternoon, when round-trip flights cost $416 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $548.

  • What is the cheapest flight to Washington?

    The cheapest ticket to Washington from Pennsylvania found in the last 72 hours was to Seattle, at $297 round-trip. The most popular route is Philadelphia (PHL) to Seattle (SEA) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $297.

  • What is the cheapest month to fly from Pennsylvania to Washington?

    The cheapest month for flights from Pennsylvania to Washington is January, when tickets cost $391 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $594 and $525 respectively.

  • How far in advance should I book a flight from Pennsylvania to Washington?

    To get a below average price on the flight from Pennsylvania to Washington, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

  • How long is the flight to Washington?

    An average nonstop flight from Pennsylvania to Washington takes 7h 34m, covering a distance of 2254 miles. The shortest route is Pittsburgh (PIT) to Seattle (SEA) with an average flight time of 5h 12m.

  • What are the most popular destinations in Washington?

    Based on KAYAK flight searches, the most popular destination is Seattle (79% of total searches to Washington). The next most popular destinations are Portland (19%) and Spokane (2%). Searches for flights to Pasco (0%), to Bellingham (0%) and to Wenatchee (0%) are also popular.

Top 5 airlines serving from Pennsylvania to Washington

Need help choosing which airline to fly with from Pennsylvania to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9972 reviews
8.1Boarding
7.1Food
7.1Entertainment
8.5Crew
7.9Comfort
Airline reviews

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

4.0 OkayAnonymous, Apr 2025EWR - SEA
Read more Alaska Airlines reviews

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

It was all great all around. Will travel with Alaska next trip.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

Flight 351 SEA to BOI was terrible. We got to cruising altitude and I needed to use the restroom but the fasten seatbelt sign never came off. There was no turbulence and I'd felt the plane level off so I stood up to use the restroom about 15 minutes after we leveled off. The stewardess went over the intercom and said I needed to be seated because the captain hadn't turned off the fasten seatbelt sign....Which... Fair.... But not five minutes later she went and used the bathroom. Felt very unprofessional to leave a paying customer with a burning urethra for the entire flight and bark at them to sit down and still use the bathroom yourself. They never did turn off the seatbelt sign.

For longer trips, snacks are puny, boring and don’t have ANY nutritional value.

Upgraded to first class both times .The flight attendant Spicy Tim.was excellent and very amusing.

Close boarding too early we’re willing to not let people on flight that could not check in. What ever happened to customer service? Three of us had to fight to get on plane shameful

Check your emails that you sent me. 9 emails were sent telling me that my flight is Delayed. Each one with a different time 7:10, 7:55, 9:31, 9:09, 9:29, 9:44, 10:00, 9:49, and 10:10. That was how my experience went.

Made us check our carry on,even though there was plenty of room because they didn't check with the flight crew. Also boarding was 40min late, due to the plane being on the wrong side of the airport. Also their app didn't record my tsa precheck

The flight was delayed due to a safety check. Why couldn't that have been done ahead of time? We got to Seattle with enough time to make our connecting flight but they kept changing the gate so we missed it. There were at least ten of us who missed the flight. The airline was aware. They could have waited. They didn't. Our new flight was not for seven hours and then was delayed another two hours. We got the last seats which don't recline. Super uncomfortable after a long day spent at the worst airport. Did they offer us a meal voucher or anything? On top of that Alaska Airlines didn't complete my ticket to the new flight. I wasn't sure I would get on this horrible flight, either. Oh, and it's ten o'clock at night....no food. Is this how Alaska Airlines treats its customers? I'll never fly with this airline again.

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Book cheap flights from Pennsylvania to Washington

Recent round-trip flight deals

5/28Wed
1 stopSpirit Airlines
15h 07mEWR-SEA
6/4Wed
1 stopSpirit Airlines
14h 29mSEA-EWR
$144
5/30Fri
1 stopSpirit Airlines
16h 22mPHL-SEA
6/3Tue
1 stopSpirit Airlines
11h 35mSEA-PHL
$145
9/24Wed
nonstopAlaska Airlines
6h 03mEWR-SEA
9/30Tue
nonstopAlaska Airlines
5h 19mSEA-EWR
$199
5/14Wed
1 stopUnited Airlines
10h 13mEWR-SEA
5/28Wed
nonstopUnited Airlines
5h 11mSEA-EWR
$217
5/11Sun
1 stopAlaska Airlines
9h 43mEWR-SEA
5/14Wed
nonstopAlaska Airlines
5h 27mSEA-EWR
$218
5/29Thu
1 stopUnited Airlines
8h 35mEWR-SEA
6/5Thu
nonstopUnited Airlines
5h 25mSEA-EWR
$248
6/3Tue
1 stopAmerican Airlines
8h 46mDCA-SEA
6/9Mon
1 stopAmerican Airlines
7h 51mSEA-DCA
$256
5/31Sat
nonstopDelta
5h 51mDCA-SEA
6/7Sat
nonstopDelta
5h 14mSEA-DCA
$257
9/5Fri
1 stopAmerican Airlines
11h 00mJFK-SEA
9/13Sat
1 stopAmerican Airlines
10h 30mSEA-JFK
$267
9/4Thu
1 stopDelta
10h 27mEWR-SEA
9/13Sat
1 stopDelta
7h 37mSEA-EWR
$267

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Recent one-way flight deals

6/4Wed
1 stopSpirit Airlines
15h 07mEWR-SEA
$59
5/29Thu
1 stopSpirit Airlines
14h 02mEWR-SEA
$69
5/7Wed
1 stopAmerican Airlines
8h 28mEWR-SEA
$109
5/7Wed
1 stopAlaska Airlines
12h 19mEWR-SEA
$115
5/7Wed
1 stopAlaska Airlines
10h 23mEWR-SEA
$116
5/28Wed
nonstopDelta
5h 51mDCA-SEA
$119
5/9Fri
1 stopUnited Airlines
9h 28mEWR-SEA
$119
9/3Wed
1 stopAmerican Airlines
9h 30mLGA-SEA
$128
5/27Tue
nonstopDelta
5h 51mDCA-SEA
$129
5/31Sat
1 stopUnited Airlines
9h 08mIAD-SEA
$129

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Last minute flights from Pennsylvania to Washington

Last minute flight, train and bus deals

5/6Tue
multi-stopFrontier
13h 27mDCA-PDX
5/13Tue
multi-stopFrontier
7h 39mPDX-DCA
$198
5/6Tue
multi-stopFrontier
13h 49mDCA-SEA
5/13Tue
multi-stopFrontier
7h 59mSEA-DCA
$198
5/6Tue
multi-stopAlaska Airlines
12h 19mEWR-SEA
5/13Tue
multi-stopAlaska Airlines
9h 00mSEA-EWR
$276
5/6Tue
multi-stopAlaska Airlines
12h 19mEWR-SEA
5/9Fri
multi-stopAlaska Airlines
16h 30mSEA-EWR
$286
5/2Fri
nonstopUnited Airlines
6h 16mEWR-SEA
5/9Fri
multi-stopUnited Airlines
8h 48mSEA-EWR
$484
5/6Tue
multi-stopAmerican Airlines
10h 00mEWR-SEA
5/13Tue
multi-stopAmerican Airlines
8h 35mSEA-EWR
$486
5/6Tue
multi-stopDelta
9h 34mLGA-SEA
5/13Tue
multi-stopDelta
6h 53mSEA-LGA
$487
5/6Tue
multi-stopUnited Airlines
11h 27mLGA-SEA
5/13Tue
multi-stopUnited Airlines
11h 40mSEA-LGA
$502
5/6Tue
multi-stopAmerican Airlines
9h 16mJFK-SEA
5/20Tue
multi-stopAmerican Airlines
10h 30mSEA-JFK
$548
5/2Fri
multi-stopDelta
7h 37mLGA-SEA
6/2Mon
multi-stopDelta
7h 44mSEA-LGA
$567

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Everything you need to know for your flight to Washington

Cabin class types available on flights to Pennsylvania

Cabin classes available on flights to Pennsylvania. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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