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PHL - SEA

$70 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 11/13. 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.
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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 Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Seattle.
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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
5:10 am - 4:23 pmPHL-SEA
14h 13m2 stops
5:28 pm - 1:17 amSEA-PHL
28h 49m3 stops
$268Spirit Airlines
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Thu, Nov 21 - Mon, Dec 2
3:10 pm - 4:23 pmPHL-SEA
28h 13m2 stops
7:45 pm - 12:35 amSEA-PHL
25h 50m2 stops
$269Spirit Airlines
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Wed, Nov 13 - Thu, Nov 14
5:30 am - 12:35 pmPHL-SEA
10h 05m1 stop
11:05 pm - 8:45 amSEA-PHL
6h 40m1 stop
$276Delta
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Tue, Dec 17 - Tue, Jan 7
8:35 pm - 8:40 pmPHL-SEA
27h 05m1 stop
12:03 pm - 5:31 amSEA-PHL
14h 28m1 stop
$278Frontier
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Tue, Nov 26 - Mon, Dec 2
8:41 pm - 8:15 amPHL-SEA
14h 34m1 stop
8:56 pm - 4:43 amSEA-PHL
28h 47m1 stop
$280Frontier
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Fri, Nov 8 - Mon, Nov 11
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$307American Airlines
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Thu, Dec 5 - Sat, Dec 7
5:31 pm - 12:53 amPHL-SEA
10h 22m1 stop
11:06 pm - 7:09 amSEA-PHL
5h 03mnonstop
$317American Airlines
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Wed, Nov 27 - Wed, Dec 4
6:41 pm - 10:00 pmPHL-SEA
6h 19mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$322Alaska Airlines
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Tue, Dec 24 - Sat, Dec 28
6:42 am - 12:35 pmPHL-SEA
8h 53m1 stop
6:00 am - 4:48 pmSEA-PHL
7h 48m1 stop
$326Delta
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Tue, Dec 17 - Fri, Jan 3
7:14 am - 10:31 amPHL-SEA
6h 17mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$357Alaska Airlines
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Thu, Dec 5 - Thu, Jan 9
8:29 pm - 8:15 amPHL-SEA
14h 46m1 stop
$70Frontier
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Wed, Nov 13
9:53 pm - 2:15 pmPHL-SEA
19h 22m1 stop
$73Frontier
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Thu, Jan 30
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
$129Alaska Airlines
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Tue, Jan 28
2:35 pm - 8:28 pmPHL-SEA
8h 53m1 stop
$138Delta
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Tue, Jan 28
3:50 pm - 12:19 amPHL-SEA
11h 29m1 stop
$153Delta
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Thu, Nov 28
6:46 pm - 10:05 pmPHL-SEA
6h 19mnonstop
$179American Airlines
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Thu, Nov 21
10:10 am - 6:15 pmPHL-SEA
11h 05m2 stops
$193United Airlines
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Tue, Jan 28
6:32 pm - 9:55 pmPHL-SEA
6h 23mnonstop
$199Alaska Airlines
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Thu, Jan 30
6:45 pm - 9:54 pmPHL-SEA
6h 09mnonstop
$210American Airlines
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Tue, Dec 31
10:35 am - 10:53 pmPHL-SEA
15h 18m2 stops
$234United Airlines
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Thu, Jan 30
7:39 pm - 7:15 amPHL-SEA
14h 36m1 stop
8:19 pm - 5:30 amSEA-PHL
30h 11m1 stop
$216Frontier
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Tue, Nov 5 - Tue, Nov 12
7:39 pm - 7:28 pmPHL-SEA
26h 49m1 stop
8:18 am - 5:30 amSEA-PHL
18h 12m1 stop
$247Frontier
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Tue, Nov 5 - Wed, Nov 13
5:00 am - 1:10 pmPHL-SEA
11h 10m1 stop
12:25 am - 12:51 pmSEA-PHL
9h 26m1 stop
$676American Airlines
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Tue, Nov 5 - Mon, Nov 11
7:15 am - 10:26 amPHL-SEA
6h 11mnonstop
9:44 am - 5:50 pmSEA-PHL
5h 06mnonstop
$707Alaska Airlines
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Tue, Nov 5 - Tue, Nov 12
7:15 am - 10:26 amPHL-SEA
6h 11mnonstop
9:45 pm - 5:42 amSEA-PHL
4h 57mnonstop
$737Alaska Airlines
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Sat, Nov 2 - Thu, Nov 21
10:09 am - 4:13 pmPHL-SEA
9h 04m1 stop
12:55 am - 10:49 amSEA-PHL
6h 54m1 stop
$776Delta
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Tue, Nov 5 - Sat, Nov 9
6:00 am - 12:53 pmPHL-SEA
9h 53m1 stop
3:20 pm - 9:35 amSEA-PHL
15h 15m2 stops
$812United Airlines
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Tue, Nov 5 - Sat, Nov 9
3:29 pm - 9:28 pmPHL-SEA
8h 59m1 stop
12:47 am - 12:51 pmSEA-PHL
9h 04m1 stop
$846American Airlines
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Tue, Nov 5 - Tue, Nov 12
6:00 am - 10:28 amPHL-SEA
7h 28m1 stop
11:05 pm - 8:57 amSEA-PHL
6h 52m1 stop
$916Delta
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Mon, Nov 4 - Mon, Nov 11
3:50 pm - 9:10 pmPHL-SEA
8h 20m1 stop
11:55 pm - 10:29 amSEA-PHL
7h 34m1 stop
$991United Airlines
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Mon, Nov 4 - Mon, Nov 4
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$307American Airlines
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Thu, Dec 5 - Sat, Dec 7
6:41 pm - 10:00 pmPHL-SEA
6h 19mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$318Alaska Airlines
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Wed, Dec 25 - Wed, Jan 1
6:41 pm - 10:00 pmPHL-SEA
6h 19mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$322Alaska Airlines
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Tue, Dec 24 - Sat, Dec 28
7:14 am - 10:31 amPHL-SEA
6h 17mnonstop
9:15 am - 5:32 pmSEA-PHL
5h 17mnonstop
$357Alaska Airlines
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Thu, Dec 5 - Thu, Jan 9
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$358American Airlines
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Sat, Dec 7 - Sat, Dec 14
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$359American Airlines
Find Deal
Sat, Dec 7 - Sat, Dec 14
7:00 am - 10:27 amPHL-SEA
6h 27mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$367Alaska Airlines
Find Deal
Mon, Dec 23 - Tue, Dec 31
6:41 pm - 10:00 pmPHL-SEA
6h 19mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$368Alaska Airlines
Find Deal
Wed, Dec 25 - Mon, Dec 30
6:41 pm - 10:00 pmPHL-SEA
6h 19mnonstop
9:45 pm - 5:40 amSEA-PHL
4h 55mnonstop
$372Alaska Airlines
Find Deal
Tue, Dec 24 - Fri, Dec 27
7:00 pm - 10:21 pmPHL-SEA
6h 21mnonstop
9:00 am - 5:08 pmSEA-PHL
5h 08mnonstop
$377American Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9

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 $974 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

$70
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 $70 for a one-way ticket and $268 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, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Seattle are Alaska Airlines and Delta. With an average price for the route of $458 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $378 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 $226 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, Hawaiian 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 9420 reviews
7.2Food
7.9Comfort
8.6Crew
8.2Boarding
7.1Entertainment
Airline reviews

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

10.0 ExcellentAnonymous, Oct 2024YKM - SEA
Read more Alaska Airlines reviews

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.

I’m highly satisfied with Alaska over other airline experiences however the wifi kept kicking me off and the service was intermittent. I kept having to fool with it to get it to work.

As expected cyst service up front was very good we needed assistance at the gates and they were very accommodating

Indigo screens for passengers would have been nice but the free WiFi was nice

The boarding in Idaho Falls was terrific. The plane was a bit sad, and the snax were subpar. Mostly, I was just grossed out by the Alaska gates in Seattle. EW! Smelly and cramped and dingy!

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.

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.

Everything was awful Flight attendant was condescending, rude and not helpful at all. Small outdated plane. No service, uncomfortable seats. Flight attendant was really the worst. He used hand gestures to communicate instead of words and whenever he used words he was condescending.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

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

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.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

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.
11/13Wed
1 stopFrontier
14h 46mPHL-SEA
$70
1/30Thu
1 stopFrontier
19h 22mPHL-SEA
$73
1/28Tue
nonstopAlaska Airlines
6h 23mPHL-SEA
$129
1/28Tue
1 stopDelta
8h 53mPHL-SEA
$138
11/28Thu
1 stopDelta
11h 29mPHL-SEA
$153
11/21Thu
nonstopAmerican Airlines
6h 19mPHL-SEA
$179
1/28Tue
2 stopsUnited Airlines
11h 05mPHL-SEA
$193
1/30Thu
nonstopAlaska Airlines
6h 23mPHL-SEA
$199
12/31Tue
nonstopAmerican Airlines
6h 09mPHL-SEA
$210
1/30Thu
2 stopsUnited Airlines
15h 18mPHL-SEA
$234

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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.
11/5Tue
multi-stopFrontier
14h 36mPHL-SEA
11/12Tue
multi-stopFrontier
30h 11mSEA-PHL
$216
11/5Tue
multi-stopFrontier
26h 49mPHL-SEA
11/13Wed
multi-stopFrontier
18h 12mSEA-PHL
$247
11/5Tue
multi-stopAmerican Airlines
11h 10mPHL-SEA
11/11Mon
multi-stopAmerican Airlines
9h 26mSEA-PHL
$676
11/5Tue
nonstopAlaska Airlines
6h 11mPHL-SEA
11/12Tue
nonstopAlaska Airlines
5h 06mSEA-PHL
$707
11/2Sat
nonstopAlaska Airlines
6h 11mPHL-SEA
11/21Thu
nonstopAlaska Airlines
4h 57mSEA-PHL
$737
11/5Tue
multi-stopDelta
9h 04mPHL-SEA
11/9Sat
multi-stopDelta
6h 54mSEA-PHL
$776
11/5Tue
multi-stopUnited Airlines
9h 53mPHL-SEA
11/9Sat
multi-stopUnited Airlines
15h 15mSEA-PHL
$812
11/5Tue
multi-stopAmerican Airlines
8h 59mPHL-SEA
11/12Tue
multi-stopAmerican Airlines
9h 04mSEA-PHL
$846
11/4Mon
multi-stopDelta
7h 28mPHL-SEA
11/11Mon
multi-stopDelta
6h 52mSEA-PHL
$916
11/4Mon
multi-stopUnited Airlines
8h 20mPHL-SEA
11/4Mon
multi-stopUnited Airlines
7h 34mSEA-PHL
$991

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

Information on your arrival and departure airports