Find flights
Deals
Insights
Savings Tips
When to book
FAQs & Tips
Direct Flights
Airlines

PHL - SEA

$132 Find Cheap Flights from Philadelphia to Seattle

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 Seattle departing on 1/6. 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
0 bags

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Seattle.
In the last 7 days travelers have searched 45,017,868 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

World’s Best Airfare Search Site for 2024

Cheap Flight Deals from Philadelphia to Seattle (PHL-SEA)

 
These are the cheapest deals for flights from Philadelphia to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Philadelphia to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Philadelphia to Seattle.

Recent one-way flight deals from Philadelphia to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Seattle found on KAYAK recently.

Recent last minute flight deals from Philadelphia to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Philadelphia to Seattle.

Recent direct flight deals from Philadelphia to Seattle

The latest deals for direct flights from Philadelphia to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Philadelphia to Seattle

Find recent round-trip train or bus tickets from Philadelphia to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
9:53 pm - 2:25 pmPHL-SEA
19h 32m1 stop
9:37 am - 6:54 pmSEA-PHL
30h 17m1 stop
$171Frontier
Find Deal
Thu, Feb 6 - Tue, Feb 25
9:53 pm - 1:34 pmPHL-SEA
18h 41m1 stop
5:31 pm - 10:47 amSEA-PHL
14h 16m1 stop
$173Frontier
Find Deal
Thu, Dec 12 - Mon, Dec 16
9:53 pm - 1:34 pmPHL-SEA
18h 41m1 stop
11:49 am - 6:21 amSEA-PHL
15h 32m1 stop
$175Frontier
Find Deal
Thu, Dec 12 - Tue, Dec 17
12:36 pm - 10:43 pmPHL-SEA
13h 07m1 stop
6:27 pm - 11:00 amSEA-PHL
13h 33m1 stop
$235Sun Country Air
Find Deal
Wed, Dec 25 - Sun, Jan 5
3:55 pm - 10:07 pmPHL-SEA
9h 12m1 stop
11:05 pm - 8:48 amSEA-PHL
6h 43m1 stop
$296Delta
Find Deal
Tue, Jan 7 - Wed, Jan 15
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$317Alaska Airlines
Find Deal
Tue, Jan 14 - Fri, Jan 24
9:33 am - 2:24 pmPHL-SEA
7h 51m1 stop
1:30 pm - 11:55 pmSEA-PHL
7h 25m1 stop
$327Delta
Find Deal
Wed, Jan 8 - Tue, Jan 14
12:42 pm - 5:29 pmPHL-SEA
7h 47m1 stop
11:59 pm - 11:00 amSEA-PHL
8h 01m1 stop
$355Sun Country Air
Find Deal
Tue, Dec 24 - Mon, Dec 30
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$357Alaska Airlines
Find Deal
Mon, Jan 13 - Mon, Feb 10
6:45 pm - 9:54 pmPHL-SEA
6h 09mnonstop
11:40 am - 11:59 pmSEA-PHL
9h 19m1 stop
$367American Airlines
Find Deal
Mon, Jan 6 - Sat, Jan 11
9:20 pm - 12:10 amPHL-SEA
29h 50m1 stop
$132Spirit Airlines
Find Deal
Mon, Jan 6
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
$139Alaska Airlines
Find Deal
Wed, Feb 5
3:17 pm - 12:21 amPHL-SEA
12h 04m1 stop
$147Delta
Find Deal
Sat, Dec 7
6:00 am - 10:45 amPHL-SEA
7h 45m1 stop
$148Delta
Find Deal
Tue, Jan 7
8:28 pm - 8:06 amPHL-SEA
14h 38m1 stop
$149Frontier
Find Deal
Sat, Nov 16
8:39 pm - 8:20 amPHL-SEA
14h 41m1 stop
$150Frontier
Find Deal
Thu, Nov 14
12:44 pm - 9:11 pmPHL-SEA
11h 27m2 stops
$184United Airlines
Find Deal
Sat, Feb 8
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
$186American Airlines
Find Deal
Sat, Dec 7
12:45 pm - 12:50 amPHL-SEA
15h 05m2 stops
$243United Airlines
Find Deal
Fri, Dec 6
3:46 pm - 9:24 pmPHL-SEA
8h 38m1 stop
$288American Airlines
Find Deal
Thu, Apr 17
8:38 pm - 7:27 pmPHL-SEA
25h 49m1 stop
8:19 pm - 5:30 amSEA-PHL
30h 11m1 stop
$274Frontier
Find Deal
Mon, Nov 11 - Tue, Nov 19
7:39 pm - 7:28 pmPHL-SEA
26h 49m1 stop
5:28 pm - 5:47 amSEA-PHL
9h 19m1 stop
Tue, Nov 12 - Tue, Dec 3
8:05 am - 2:49 pmPHL-SEA
9h 44m1 stop
7:15 am - 5:24 pmSEA-PHL
7h 09m1 stop
$700Delta
Find Deal
Sun, Nov 10 - Wed, Nov 13
10:30 am - 7:13 pmPHL-SEA
11h 43m2 stops
3:20 pm - 5:26 amSEA-PHL
11h 06m1 stop
$728United Airlines
Find Deal
Sun, Nov 10 - Wed, Nov 13
6:20 am - 3:33 pmPHL-SEA
12h 13m2 stops
3:20 pm - 9:35 amSEA-PHL
15h 15m2 stops
$733United Airlines
Find Deal
Sun, Nov 10 - Wed, Nov 13
7:15 am - 10:26 amPHL-SEA
6h 11mnonstop
9:40 pm - 5:45 amSEA-PHL
5h 05mnonstop
$737Alaska Airlines
Find Deal
Tue, Nov 12 - Wed, Dec 4
6:15 am - 12:59 pmPHL-SEA
9h 44m1 stop
12:35 am - 12:51 pmSEA-PHL
9h 16m1 stop
$746American Airlines
Find Deal
Tue, Nov 12 - Tue, Dec 3
6:46 pm - 10:05 pmPHL-SEA
6h 19mnonstop
12:47 am - 9:54 pmSEA-PHL
18h 07m1 stop
$844American Airlines
Find Deal
Sun, Nov 10 - Tue, Nov 12
6:55 pm - 10:00 pmPHL-SEA
6h 05mnonstop
9:40 pm - 5:45 amSEA-PHL
5h 05mnonstop
$847Alaska Airlines
Find Deal
Tue, Nov 12 - Tue, Dec 3
5:25 pm - 10:24 pmPHL-SEA
7h 59m1 stop
12:55 am - 10:39 amSEA-PHL
6h 44m1 stop
$916Delta
Find Deal
Mon, Nov 11 - Mon, Nov 18
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$317Alaska Airlines
Find Deal
Tue, Jan 14 - Fri, Jan 24
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
11:10 pm - 7:17 amSEA-PHL
5h 07mnonstop
$337American Airlines
Find Deal
Sat, Dec 14 - Sat, Dec 28
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$357Alaska Airlines
Find Deal
Mon, Jan 13 - Mon, Feb 10
7:14 am - 10:31 amPHL-SEA
6h 17mnonstop
9:44 am - 5:50 pmSEA-PHL
5h 06mnonstop
$358Alaska Airlines
Find Deal
Thu, Dec 5 - Wed, Dec 11
10:50 am - 1:53 pmPHL-SEA
6h 03mnonstop
10:56 pm - 7:05 amSEA-PHL
5h 09mnonstop
$367American Airlines
Find Deal
Tue, Dec 24 - Tue, Dec 31
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$377Alaska Airlines
Find Deal
Fri, Jan 10 - Fri, Feb 7
10:50 am - 1:53 pmPHL-SEA
6h 03mnonstop
11:10 pm - 7:17 amSEA-PHL
5h 07mnonstop
$388American Airlines
Find Deal
Wed, Dec 25 - Mon, Dec 30
6:25 pm - 9:51 pmPHL-SEA
6h 26mnonstop
9:15 am - 5:25 pmSEA-PHL
5h 10mnonstop
$397Alaska Airlines
Find Deal
Fri, Feb 21 - Sun, Feb 23
10:50 am - 1:53 pmPHL-SEA
6h 03mnonstop
11:10 pm - 7:17 amSEA-PHL
5h 07mnonstop
$407American Airlines
Find Deal
Tue, Dec 24 - Mon, Jan 6
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$412American Airlines
Find Deal
Thu, Dec 5 - Wed, Dec 11

Flights from Philadelphia to Seattle - Travel Insights & Trends

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

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

The average price of all flights from Philadelphia to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Philadelphia to Seattle, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia to Seattle, 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 Seattle is February, where tickets cost $336 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $526 and $522 respectively.

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

The average 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.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $1,073 on average

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Philadelphia to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Philadelphia to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 31 days before departure.
 AI-powered savings tips

How to save more on a Philadelphia to Seattle flight

When planning a trip from Philadelphia to Seattle, there are several ways to potentially save money on your flight. Generally, the cheapest day of the week to fly is Wednesday, and the cheapest month to fly is October.

Day Selection: Opt for a Wednesday flight for the best rates.

Month Selection: Consider flying in October to save on airfare.

Booking Time: Book your flight at least 45 days in advance for the best prices.

Airline Choice: Frontier Airlines generally offers the cheapest flights for this route.

Flight Type: Direct flights are typically cheaper than those with a layover.

This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK. 


Good to know

Low season

January

High season

August

Cheapest flight

$132
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Philadelphia to Seattle

When to book flights from Philadelphia to Seattle

Are your dates flexible? Find out the best times to travel from Philadelphia to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Seattle

  • What are some of the top hotels that are located close to the Seattle-Tacoma International Airport?

    If you are searching for a hotel near Seattle-Tacoma-Intl-(SEA), you may want to have a look at the Hampton Inn & Suites Seattle-Airport and La Quinta by Wyndham Seattle Sea-Tac Airport. All of them have a good connection to the airport in case your flight arrives late.

  • What transportation options are there for accessing the Philadelphia International Airport?

    The Regional Rail's Airport Line Service is the most convenient way to get to Philadelphia International Airport from the city center. This service makes stops at all of the main airport terminals, in addition to University City, Center City, and the area close to Temple University. Access is provided to every station that is serviced by the Airport Line.

  • What services are available for passengers with reduced mobility?

    You may book special help to go through security and reach your gate in advance at PHL airport. The airport has accessible facilities as well as additional assistance for those with a concealed disability. Seattle-Tacoma International Airport (SEA) provides accessible services at the arrival airport such as wheelchairs and adapted bathrooms.

  • Where can I find family restrooms at Seattle-Tacoma International Airport?

    Family bathrooms are conveniently located next to all multi-user toilet facilities and are open for use by any and all customers. These restrooms can be found on the floors of the Main Terminal that are designated for Ticketing and Baggage Claim, as well as on the levels that are designated for Concourses A, B, C, and D, and in both the North and South Satellites. In addition, these restrooms can be found on the levels that are designated for Concourses A, B, C, and D. In the family restrooms of the North Satellite, there are two adult-sized changing tables. You may get step-by-step instructions by using the airport's interactive map.

  • What is the cheapest flight from Philadelphia to Seattle?

    In the last 3 days, the lowest price for a flight from Philadelphia to Seattle was $132 for a one-way ticket and $171 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Seattle?

    No, a passport isn't needed to fly from Philadelphia to Seattle. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Philadelphia to Seattle?

    Philadelphia and Seattle are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to Seattle?

    Alaska Airlines, American Airlines, Air Canada, JetBlue, and Delta offer inflight Wi-Fi service on the Philadelphia to Seattle flight route.

  • Which aircraft models fly most regularly from Philadelphia to Seattle?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Philadelphia to Seattle flight route.

  • Which airline alliances offer flights from Philadelphia to Seattle?

    oneworld is the only airline alliance operating flights between Philadelphia and Seattle.

  • On which days can I fly direct from Philadelphia to Seattle?

    There are nonstop flights from Philadelphia to Seattle on a daily basis.

  • Which is the best airline for flights from Philadelphia to Seattle, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Seattle are Southwest and Alaska Airlines. With an average price for the route of $556 and an overall rating of 8.1, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $459 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Philadelphia to Seattle?

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Philadelphia 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 Seattle?

    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 to Seattle with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SEA can sometimes prove cheaper using this method.

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

    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 to Seattle from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Philadelphia to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $223 or less one-way and $376 or less round-trip.
  • Make use of the lounges that are offered at both the airport where you are departing and the airport where you are arriving. At Philadelphia International Airport (PHL), there are a number of United Club Lounges, and at Seattle-Tacoma International Airport (SEA), there are a number of United Club Lounges, both of which provide amenities such as meals and showers.
  • When traveling through Philadelphia International Airport, nursing mothers now have a new alternative available to them if they want their privacy: a nursing pod. In the room, not only will you have complete privacy, but there will also be a bench and a table that folds out from under the seat, in addition to an electrical outlet.
  • If you require parking near the airport, there are a number of private lots in close proximity to PHL that provide both short-term and long-term parking options. The operators provide users with transportation to and from the airport as part of their service.
  • If you are traveling with your family, SkySquad provides professional, pre-screened personal assistants for hire to assist with PHL airport navigation from the moment you arrive until you board the airplane. This fee-based program offers assistance to travelers of all ages, from infants to those older than 100.
  • If you need to exchange money, you may do so at the Travelex Currency Exchange and ATMs, which are situated in the Main Terminal, near the south end of the Ticketing Level, at the Baggage Claim, on Concourse A, and in the South Satellite at Seattle-Tacoma International Airport.
See more tips

Prefer to fly non-stop from Philadelphia to Seattle?

Find which airlines fly direct from Philadelphia Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Nonstop departures

Philadelphia to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Tuesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Wednesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Thursday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Friday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Saturday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Sunday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Philadelphia

Monday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Tuesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Wednesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Thursday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Friday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Saturday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Sunday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

See more direct flights
See more direct flights

Top 5 airlines serving from Philadelphia to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Seattle. 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 Seattle? 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 9428 reviews
7.2Food
7.1Entertainment
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

This was our fist time flying Alaska Airlines. Overall it was a great experience. Ticket counter, gate agents and flight attendants were all wonderful. They all seemed happy at what they do and it shows. Of 4 legs, the onboard WiFi was spotty on 1 leg. The food in first class cabin was ok. Couldn’t get the text messaging notifications to work so had to rely on Flight Aware and the Alaska App. Flights were on time and uneventful. We would def fly Alaska Airlines again :)

10.0 ExcellentAnonymous, Nov 2024FAI - SEA
Read more Alaska Airlines reviews

This was our fist time flying Alaska Airlines. Overall it was a great experience. Ticket counter, gate agents and flight attendants were all wonderful. They all seemed happy at what they do and it shows. Of 4 legs, the onboard WiFi was spotty on 1 leg. The food in first class cabin was ok. Couldn’t get the text messaging notifications to work so had to rely on Flight Aware and the Alaska App. Flights were on time and uneventful. We would def fly Alaska Airlines again :)

Both flights were delayed, the Bellingham to Seattle flight was delayed so much I nearly missed my connection with a two hour layover to spare. I could have driven to Seattle and back in the amount of time the flight was delayed. Seattle to Bellingham Washington also delayed. Not good.

I've flown at least six times this past year. For some reason, the entry into Seattle felt like the worst ever. It felt like the plane was going too high, too fast for entry and then a very rough landing. Could have been the weather. All else was fine. Please consider changing snacks from pretzel sticks to nuts as an option.

All pretty good except we were a bit late getting into Seattle and I had to run to my next gate and was the very last person to board (they were about to close the door but were terrific about getting me aboard.) Hustling between gates is not usually a problem, but I just had a hip replacement which affected my ability to hurry.

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

A review system on Kayak that would allow “NA” (Not Applicable) as an answer. For example, if food wasn’t ordered, I cannot say how good it might or might not have been.

Easy boarding, good staff, comfortable seats, easy ride. Also, friendly passengers!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

Your seats are too crowded! and you don't serve full meals on this 5 hour flight? Just rake in the profits.

FLL to SEA delayed one hour due to mechanical issue. Had to return to gate from runway.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

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

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Screen didn’t play movies, do I was pretty boated the entire flight.

It was very cold because the air conditioner was on high power, and my son got sick.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Long wait before take off without an update for 20 minutes. Flight was good otherwise.

Plane still had screens for watching movies. Good selection too.

The plane’s radio wasn’t working. This delayed the plane for an hour and a half. Then we all broaded and taxied down the runway only to get called back because the radio was still not working. Had to get off the plane and then find another plane making the trip 4 hours delayed. Maybe a different plane should have been chosen sooner?!?!?!

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

There was no air on the plane and it was very hot.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

For coast to coast travel the A321 and even the NEO, even in first class will never be excellent. That would take a B787 or 777 to accomplish.

The one gate agent was very abrupt and rude. Not a good look for American for the day

Departure more than an hour later. Conexion/waiting time at the airport was more than 7 hours :(

I was unhappy with having the seat I chose changed at the last minute. I was moved to an aisle seat which did not recline and was next to the bathroom. The bathroom odors made the flight entirely unpleasant. Having carefully chosen my seat months before I was not pleased with my AA experience. In addition, they ran out of tea during flight service, really?

Pilots showed up late because they decided to stop and get something to eat instead of going straight to our gate, Forcing an 1 1/2 hour delay, and missed flight. Shame on the pilots.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

It was a bus not a flight. Okay bus ride.

Our 9:10 am scheduled flight continued to get delayed all day with no information given from the agents as to why. It wasn’t until I went to the customer service desk and got us switched to another flight at 2:44 pm (that wasn’t nonstop like our booked flight) that the agent finally was able to find out it was due to a fuel leak. I don’t know if our original flight ever took off but I don’t find it acceptable to leave people sitting in an airport all day with no explanation.

If there was enough room for me to bring my carry on luggage with me on the flight.

My flights had excessive delays, alleged mechanical problems, and overall terrible customer service

Booked direct in July '24. Turned into a 14 hr layover (both ways) in Denver. My 5 day vaca turned into a 1 day . Not good, BUT,... Thank you for the people @ Frontier who were professionally friendly & approachable.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

The crew was ghetto lol I felt like I was on an inner city field trip

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

Delayed for two hours due to trivial issues. No reimbursment. Also on arrival further delay due to terminal malfunction.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Book cheap flights from Philadelphia to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Seattle found on KAYAK in the last 72 hours.
1/6Mon
1 stopSpirit Airlines
29h 50mPHL-SEA
$132
2/5Wed
nonstopAlaska Airlines
6h 23mPHL-SEA
$139
12/7Sat
1 stopDelta
12h 04mPHL-SEA
$147
1/7Tue
1 stopDelta
7h 45mPHL-SEA
$148
11/16Sat
1 stopFrontier
14h 38mPHL-SEA
$149
11/14Thu
1 stopFrontier
14h 41mPHL-SEA
$150
2/8Sat
2 stopsUnited Airlines
11h 27mPHL-SEA
$184
12/7Sat
nonstopAmerican Airlines
6h 21mPHL-SEA
$186
12/6Fri
2 stopsUnited Airlines
15h 05mPHL-SEA
$243
4/17Thu
1 stopAmerican Airlines
8h 38mPHL-SEA
$288

Search by stops

Search by airline

Search by price

Last minute flights from Philadelphia to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Philadelphia to Seattle that are departing in the next 10 days.
11/11Mon
multi-stopFrontier
25h 49mPHL-SEA
11/19Tue
multi-stopFrontier
30h 11mSEA-PHL
$274
11/12Tue
multi-stop
26h 49mPHL-SEA
12/3Tue
multi-stop
9h 19mSEA-PHL
$299
11/10Sun
multi-stopDelta
9h 44mPHL-SEA
11/13Wed
multi-stopDelta
7h 09mSEA-PHL
$700
11/10Sun
multi-stopUnited Airlines
11h 43mPHL-SEA
11/13Wed
multi-stopUnited Airlines
11h 06mSEA-PHL
$728
11/10Sun
multi-stopUnited Airlines
12h 13mPHL-SEA
11/13Wed
multi-stopUnited Airlines
15h 15mSEA-PHL
$733
11/12Tue
nonstopAlaska Airlines
6h 11mPHL-SEA
12/4Wed
nonstopAlaska Airlines
5h 05mSEA-PHL
$737
11/12Tue
multi-stopAmerican Airlines
9h 44mPHL-SEA
12/3Tue
multi-stopAmerican Airlines
9h 16mSEA-PHL
$746
11/10Sun
nonstopAmerican Airlines
6h 19mPHL-SEA
11/12Tue
multi-stopAmerican Airlines
18h 07mSEA-PHL
$844
11/12Tue
nonstopAlaska Airlines
6h 05mPHL-SEA
12/3Tue
nonstopAlaska Airlines
5h 05mSEA-PHL
$847
11/11Mon
multi-stopDelta
7h 59mPHL-SEA
11/18Mon
multi-stopDelta
6h 44mSEA-PHL
$916

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Philadelphia to Seattle

Information on your arrival and departure airports