$67 Find Cheap Flights from Philadelphia to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Washington departing on 11/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Washington.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Washington.
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Cheap Flights from Philadelphia to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle2 stops$257
Spokane
Spokane1 stop$342
Pasco
Pasco1 stop$373
Bellingham
Bellingham1 stop$453
Pullman
Pullman1 stop$445
Wenatchee
Wenatchee1 stop$478
Seattle
Seattle2 stops$257
Spokane
Spokane1 stop$342
Pasco
Pasco1 stop$373
Bellingham
Bellingham1 stop$453
Pullman
Pullman1 stop$445
Wenatchee
Wenatchee1 stop$478

Book Cheap Philadelphia to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Washington

Sat, Nov 22 - Sun, Jan 11
Frontier Logo
5:50 pm - 8:27 amPHL-SEA
41h 37m2 stops
Frontier Logo
2:54 pm - 3:34 pmSEA-PHL
21h 40m1 stop
$257Frontier
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Sat, Nov 15 - Sun, Nov 23
Frontier Logo
6:19 am - 12:13 pmPHL-SEA
8h 54m1 stop
Frontier Logo
3:22 pm - 4:45 amSEA-PHL
34h 23m2 stops
$260Frontier
Find Deal
Thu, Nov 27 - Sat, Dec 6
Alaska Airlines Logo
7:10 am - 10:17 amPHL-SEA
6h 07mnonstop
Alaska Airlines Logo
9:35 pm - 5:46 amSEA-PHL
5h 11mnonstop
$267Alaska Airlines
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Tue, Feb 17 - Fri, Feb 20
Delta Logo
6:08 am - 12:25 pmPHL-SEA
9h 17m1 stop
Delta Logo
6:05 am - 5:56 pmSEA-PHL
8h 51m1 stop
$277Delta
Find Deal
Sat, Nov 22 - Mon, Jan 5
American Airlines Logo
6:45 pm - 10:10 pmPHL-SEA
6h 25mnonstop
American Airlines Logo
11:07 pm - 7:08 amSEA-PHL
5h 01mnonstop
$282American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
6:35 pm - 9:47 pmPHL-SEA
6h 12mnonstop
Hawaiian Airlines Logo
9:15 am - 5:31 pmSEA-PHL
5h 16mnonstop
$287Hawaiian Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
1:50 pm - 8:37 pmPHL-SEA
9h 47m1 stop
American Airlines Logo
10:58 pm - 6:53 amSEA-PHL
4h 55mnonstop
$307American Airlines
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Thu, Dec 4 - Tue, Dec 9
Alaska Airlines Logo
7:06 am - 1:50 pmPHL-PDX
9h 44m1 stop
Alaska Airlines Logo
5:49 pm - 5:53 pmPDX-PHL
21h 04m1 stop
$314Alaska Airlines
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Thu, Nov 27 - Tue, Dec 2
Delta Logo
12:22 pm - 10:40 pmPHL-PDX
13h 18m2 stops
Delta Logo
7:30 pm - 10:51 amPDX-PHL
12h 21m2 stops
$326Delta
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Tue, Mar 10 - Wed, Mar 11
Hawaiian Airlines Logo
6:35 pm - 12:14 amPHL-GEG
8h 39m1 stop
Hawaiian Airlines Logo
5:00 am - 5:31 pmGEG-PHL
9h 31m1 stop
$412Hawaiian Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Philadelphia to Washington flights

Get data-powered insights and trends into flights from Philadelphia to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Philadelphia to Washington flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Washington from Philadelphia found in the last 72 hours was to Seattle, at $257 round-trip. The most popular route is from Philadelphia (PHL) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $257.

Can I save money by flying with a layover from Philadelphia to Washington?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $417, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Philadelphia to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Washington is October, when tickets cost $360 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $517 and $477 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Washington?

The average price of all round-trip flights from Philadelphia to Washington clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Philadelphia to Washington. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Washington, you should book around 4 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$67
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Philadelphia to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • 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 10% 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 $528.

Reviews of the top 5 airlines serving from Philadelphia to Washington

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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
Alaska AirlinesOverall score based on 11235 reviews
8.1Boarding
8.5Crew
7.0Entertainment
7.1Food
7.8Comfort
Airline reviews

I wish my checked suitcase could have been checked since I arrived an hour before take off .

6.0 GoodAnonymous, Nov 2025JFK - SEA
Read more Alaska Airlines reviews

I wish my checked suitcase could have been checked since I arrived an hour before take off .

The staff was so kind and friendly! Boarding was efficient and communication was timely. I would seek out flying with Alaska Airlines in the future.

The cabin crew on this team was particularly kind and excellent.

Check in went pretty well and you didn't lose my bag. After I got a drink from the drink cart they charged me for it, and at the crazy overpriced airport rates. Never had that happen before, is that an american thing? what madness.

In both halves of the trip (going and returning) there were problems. Not exactly Alaska's fault, but still really difficult. Outgoing flight was canceled and rebooked twice due to a total ground stop of all Alaska's flights. This required me to change airports with minimal notice and I almost missed my flight transferring to the other airport (which was roughly an hour and a half away). On the return, the first leg was delayed by an hour, and the second leg was delayed by nearly 3 hours. This was a rough set of flights and the communication about all of these changes was minimal. Crew did their best however, so no fault there. Other thing to remember is there is no food on Alaska flights unless you pre-order. Take that into account when you choose airlines.

My flight was canceled because of an IT outage, and they did not answer the phone for 8 hrs. There was no next flight out, I have missed my wedding because of this.

Liked the crew. Multiple delays. Altered my complete day and plans

Apart from the man snoring very loudly across the aisle from us for about 3.5 of the 5 hour flight it was a great flight. I couldn't get the internet to work and stay working. Texting was intermittent for me.

The plane boarded late and arrived late which wasn't really ideal.

The pretzels have no taste. How about a choice of snacks? The flight itself was fine.

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

I always love flying Hawaii and I have nothing to add

Previously flown Hawaiian Airlines on similar routes, I found Alaska Airlines to be noticeably more comfortable. The seats on Alaska Airlines provided better support and cushioning, which made a significant difference on the long flight to the islands. When you’re spending 5-6 hours in the air, seat comfort really matters, and Alaska Airlines delivered where it counts. After comparing both carriers, I’ve decided to book with Alaska Airlines for all my future Hawaii trips. The superior seat comfort alone makes it worth choosing Alaska over Hawaiian Airlines. If you’re planning a trip to Hawaii and prioritizing comfort, I’d recommend giving Alaska Airlines a try. You won’t be disappointed. Highly recommended for Hawaii travel!

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

My flight was delayed three hours and then cancelled. The gate agent proceeded to rebook me in a middle seat without telling me and I was placed between two large individuals who did not fit in their own seats and instead took up most of mine. It was an awful experience.

The food options were limited and very specific. Some type of entertainment option for a 4.5 hour flight would have been nice.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

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