$198 Find Cheap Flights from Philadelphia to Washington - Compare and Save

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Cheap Flights from Philadelphia to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Seattle
Seattle1 stop$397
Spokane
Spokane1 stop$371
Pasco
Pasco1 stop$459
Bellingham
Bellingham1 stop$777
Pullman
Pullman1 stop$544
Wenatchee
Wenatchee1 stop$538
Seattle
Seattle1 stop$397
Spokane
Spokane1 stop$371
Pasco
Pasco1 stop$459
Bellingham
Bellingham1 stop$777
Pullman
Pullman1 stop$544
Wenatchee
Wenatchee1 stop$538
Booking Insights

Price, demand and travel trends for Philadelphia to Washington flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Philadelphia to Washington recently?

The cheapest fares from Philadelphia to Washington on KAYAK in the last week were to Spokane (GEG) from $371 round-trip and to Seattle/Tacoma Intl (SEA) from $400 round-trip.

How do fares into airports in Washington compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Washington from Philadelphia are:

• Spokane (GEG) (avg. price $412)
• Seattle/Tacoma Intl (SEA) (avg. price $437)
• Pasco Tri Cities (PSC) (avg. price $537)

Are flights from Philadelphia to Washington cheaper or more expensive than last year?

Fares from Philadelphia to Washington are about 23% lower than they were in November last year, averaging $329 round-trip.

What's the cheapest month to fly from Philadelphia to Washington?

February is typically the cheapest month to fly from Philadelphia to Washington, with round-trip fares averaging $343. December and August are usually the most expensive, averaging $491 and $467, respectively.

How do fares from Philadelphia to Washington vary by day of the week?

On average, Wednesday is the cheapest day to fly from Philadelphia to Washington and Sunday is the most expensive. Looking at the past 12 months of KAYAK data, it's 23% more expensive to fly on a Sunday compared to Wednesday.

What's the best time of day to fly from Philadelphia to Washington?

It's cheapest to fly to Washington in the evening with average prices of $427. The night is the most expensive time to fly, with average prices of $488.

What's the best time to book a flight from Philadelphia to Washington?

Book your flights 9 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 33% compared to booking at the last minute (within 2 weeks of departure).

Key details for Philadelphia to Washington flights

Low season

February

Cheapest flight

$198
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 112% increase in travelers.
One-way flight from Philadelphia to Spokane

Your Philadelphia to Washington flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Philadelphia to Washington?

    Fares from Philadelphia to Washington are around their usual level right now. A round-trip under $357 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch fare changes.

  • How much should I budget for a flight from Philadelphia to Washington?

    Over the past 12 months, round-trip fares from Philadelphia to Washington have typically cost between $357 and $539.

  • What are the main airports serving Washington?

    There are 21 airports in Washington. 86% of KAYAK users choose Seattle/Tacoma Intl (SEA) as their arrival airport, while 12% choose Spokane (GEG).

  • Which airlines fly nonstop from Philadelphia to Washington?

    Based on the flight schedule for the next 3 months, 3 airlines offer nonstop flights on this route:

    • Alaska Airlines
    • American Airlines
    • Delta

  • Which destinations in Washington can I fly nonstop from Philadelphia?

    Based on the flight schedule for the next 3 months, you can fly nonstop from Philadelphia to just one destination in Washington: Seattle.

  • Is it cheaper to fly with a layover from Philadelphia to Washington?

    Yes, nonstop flights from Philadelphia to Washington average $439 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Detroit Metropolitan Wayne County (DTW) (avg. price $349)
    • Atlanta Hartsfield-Jackson (ATL) (avg. price $362)
    • Las Vegas Harry Reid Intl (LAS) (avg. price $383)

  • How long is a flight from Philadelphia to Washington?

    Nonstop flights from Philadelphia to Washington take 6h 24m on average. All flights fly into Seattle/Tacoma Intl (SEA).

  • Which cabin classes are available from Philadelphia to Washington?

    On flights from Philadelphia to Washington you can book Economy Class, Business Class or First Class.

  • What are some popular landmarks around Washington?

    Washington is home to many popular sights. KAYAK travelers' favorites include:

    • Pike Place Market
    • Lumen Field
    • Space Needle
    • Seattle Waterfront

  • What are the earliest and latest flights from Philadelphia to Washington?

    The earliest nonstop flight from Philadelphia to Washington departs at 7:00 am and the latest leaves at 7:00 pm. Nonstop flights take about 6h 24m.

Your guide to booking Philadelphia to Washington flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 9 weeks before your trip. KAYAK data shows fares in this window are around 33% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in February to save some money. It's typically the cheapest month on this route, while flights in December will cost you the most.
  • Fly out on a Wednesday to get the cheapest fares. Avoid Sunday flights, which are about 23% more expensive.
  • If you're watching your budget, fly into Spokane (GEG) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Seattle, the most popular destination in Washington. From there, it's easy to continue on to other popular spots such as Spokane, SeaTac and Leavenworth.
  • Time or money? If speed matters most, fly from Philadelphia to Seattle/Tacoma Intl (SEA). If you're after the lowest fares, Spokane (GEG) is usually your best bet.

Reviews of the top 5 airlines serving from Philadelphia to Washington

 
Need help choosing which airline to fly with from Philadelphia 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
SouthwestOverall score based on 4222 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

Wifi was terrible. I couldn't get any work done on the long flight

4.0 OkayMichael, Sep 2026
Read more Southwest reviews

Wifi was terrible. I couldn't get any work done on the long flight

Just crazy with times being pushed and pushed and pushed and gate crew at Philly super rude and unprofessional with many under stress with delays.

My experience will Southwest was good. I wish there was more entertainment and the boarding process was slow at time but other than that my experience was great definitely will be flying with SouthWest again.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

I would have liked to arrive on time - not 5 hours late!

Board Milian spokesman with pre boarding , not after A group and without my spouse. Total BS, back to Alaska Airlibes I GO. oner 1.2M miles and 900 flights, and every time I fly SWA I regret it, thos will be last time, I only flew SWA but to time requirements fir a Funeral. NEVER AGAIN SWA

We boarded the flight and set two and a half hours on the jetway. Would have been better if they had not boarded us at all. Plane was hot and it was limited ability to access the restrooms or get a drink of water. Very unpleasant experience

Flight attendant was funny with the announcements. I was assigned a middle seat but I was in the Premium Cabin so got a nice snack. Not the most comfortable seats but seems standard for airlines. I was glad to get some overhead bin space for my carry on even though I was in the last group to board. Overall, things went very smoothly and orderly.

Apparently you could not have food unless you ordered ahead. This was not obvious ahead of time. What we saw given to others on the plane also appeared too be quite meager.

The aisles were very narrow for passing and too long to get to the restrooms. You asked to check carryons at boarding, but the bag was not at the luggage carousels on arrival and no information given as to where to pick them up.

I truly can’t give a review regarding the food or entertainment it did not apply to my flight. But everything ran very smoothly.

I had the worst seat neighbors thry literally snored so loud and the man next to me man spreaded the whole time i couldnt sleep

Why is a fanny pack considered a third carry on? This shouldn't be regulated at the gate

The crew in first class did an amazing job keeping me comfortable, well fed and with plenty to drink. They work hard and deserve to be recognized

Mid flight we were bothered by a bee. Kind of odd, but a bee allergy made it a bit stressful. Attendants passed by our aisle during service multiple times. Otherwise, it was fine.

The airline said get there three hours before the flight if you do not have the new Real-ID. Except nobody is at the check in desk and i had to stand in line for 30-45 minutes for somebody to start checking in/accepting baggage.

This flight was delayed but otherwise comfortable except for some turbulence. The crew was minimally engaged with us but nothing particularly bad in our interaction. The pilot was incomprehensible mumbling whenever he got on the air - honestly, impossible to understand. However, there were two flights that multiple people were trying to connect to that were leaving in 10 minutes after our flight landed (one to Alaska and one to Oregon). The passengers in the back reported to me that they asked the flight attendents to assist them in getting out first to try to make those flights- they reported that they were told that this would not occur because "people aren't so nice". NOBODY from the flight crew announced that there were people who needed to catch a tight connection and to please let them off first. I was in row 16 and when I heard this, I made an announcement myself and worked to get those trying to make those flights out first. Unfortunately, a lot of people were already in the aisles and these folks were slowed getting out. But what is wrong with the Alaska team that they wouldn't help those passengers???? One of the things I love about flying Alaska is that generally the crews are special people who seem to enjoy their jobs (despite the challenges of working with the public) and try to assist however they can. I would have liked to see the Alaska crew make an announcement to assist getting passengers with a tight connection due to the delayed flight out first. I think that Alaska often stands out because of the niceness of the crews, but this was a fail. Honestly, a huge fail. Please do better next time. I really believe in Alaska and fly preferentially on Alaska, but that means standing out from the crowd to do the right thing in being kind when we can.

Rude staff from baggage check to gate crew. Poor instructions. Inconsistent application of baggage rules.

more room in seats, larger snacks, more comms with delays

The plane was a rather tired 737-800, with old style small luggage bins. Poor air flow. USB charger in the infotainment system was not functioning. The flight was 2 hours late due to crew rest requirements (not their fault). On arrival in Seattle, waited on the tarmac for 30 minutes with very few updates from the crew.

One of the restrooms didn’t work. The ones that did never got replenished. Flight attendant just sitting there on their phone. No notification that the bathroom was broken so long lines. Apathetic crew.

I am in a wheelchair The gate agent knew exactly how to boarding A wheelchair first also the flight attendant knew exactly what she was doing

This a short easy flight. No food or drink but that was not an issue since we were only in the air for 35 minutes.

Not really a “Delta” problem but worth mentioning: Boarding was a difficult process. TSA seemed understaffed and Pre-Check took longer than regular TSA. The supervisor was frazzled and yelled at travelers. Once through TSA, we had to put our carry-ons through another x-ray machine. Then queue up to board with both boarding pass and ID. Then, when we got to the stairs on the tarmac, we had to show our boarding pass again. Maybe this is just normal for Kona since the terminal is outdoors (but still a “secured” area).

Connection flights should be spaced out farther because too close I missed my connection.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

My flight consistently said it was on time and the plane didn’t arrive until after 30 minutes after take off and nothing was announced to passengers

Stored my cloth purse under seat in front off me as instructed. When I retrieved it, half of it was soaked, along with everything inside it. I don’t really know how that could have been prevented because the area did not look wet, but I was not happy about it.

It was easy to board, and the staff was friendly and helpful. What could have been better is that I shouldn't have to pay extra for a seat that doesn't recline.

This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Flight was on time, crew were excellent. For some reason our originally selected seats were changed. We had to re-choose our seats when we checked in online and options were limited. One of our two checked bags we placed on the wrong carousel. It was only be shear luck that I saw it. That cost us 20 minutes of wasted time. So much for the “priority” tags. They are meaningless, and have been ever since they were implemented. I wish you would do the save some money and stop using them.

The flight was delayed several times as they didn't have pilots. Then we were boarded on the plane and again waited on the tarmac for over 30-40 minutes waiting for pilots to board. The in flight entertainment was confusing at best on how to use it. It took multiple attempts to get wifi to connect and by the time it worked the flight was almost over.

It was a late flight; crew was invisible. Zero air flow - the tiny plane was a sauna; the left the lights on for 1/2 of the flight; there was no water. Never again.

What an amazing plane! We flew a 787 to Miami. Although the Internet was not functioning, it was a wonderful flight.

Plane was in good shape, multiple passes from the drink cart, and one of the smoothest flights I've had in a while.

After lack of help in Philadelpha made us late to board our flight to akansas City, our flight to Kansas City was very good. And the flight attendants were also very good. The only thing that sucked was problems with assistance in Philadelphia caused our bags not to arrive.

Legroom was decent, but the seat comfort was horrible; I believe the seat cushions have lost their cushion. I was uncomfortable and had back pain throughout the nearly five-hour flight. WiFi did not work despite my attempts to get it up and running. This was very frustrating as passengers all around me were streaming football games, movies, and accessing email and text messages. One flight attendant suggested it was my seat, but that makes no sense, given WiFi doesn't work that way. On another note, I rarely have a good experience with aainflight.com.

Id like for them to not have lost my bag. And maybe be a little nicer to me, given the fact they lost my bag.

Hey as long as you bring me back to earth in one piece I’m good! Otherwise great flight smooth take off and landing good staff Only thing is the staff at the back of the aircraft chatters a lot it’s annoying at times but I’ll let that go because they are very sweet overall.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

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