SEA

Find First Class Flights from Philadelphia to Seattle

1 adult
1 adult, First, 0 bags

KAYAK searches hundreds of travel sites at once for first class flights 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Seattle, as well as popular online travel agencies
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Cheap First Class Flight Deals from Philadelphia to Seattle

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent first class round-trip flight deals to Seattle

Tue, Jul 14 - Tue, Jul 28
American Airlines Logo
7:35 pm - 10:56 pm
PHL
-
SEA
6h 21mnonstop
American Airlines Logo
10:35 pm - 6:48 am
SEA
-
PHL
5h 13mnonstop
$917American Airlines
Tue, Jul 14 - Tue, Jul 28
American Airlines Logo
7:35 pm - 10:56 pm
PHL
-
SEA
6h 21mnonstop
American Airlines Logo
10:35 pm - 6:48 am
SEA
-
PHL
5h 13mnonstop
$937American Airlines
Mon, Jul 13 - Tue, Jul 14
American Airlines Logo
7:35 pm - 10:56 pm
PHL
-
SEA
6h 21mnonstop
American Airlines Logo
10:35 pm - 6:48 am
SEA
-
PHL
5h 13mnonstop
$957American Airlines
Wed, Oct 21 - Mon, Oct 26
Delta Logo
7:05 am - 10:24 am
PHL
-
SEA
6h 19mnonstop
Delta Logo
9:50 pm - 6:03 am
SEA
-
PHL
5h 13mnonstop
$959Delta
Tue, Jul 14 - Tue, Jul 28
American Airlines Logo
7:35 pm - 10:56 pm
PHL
-
SEA
6h 21mnonstop
American Airlines Logo
10:35 pm - 6:48 am
SEA
-
PHL
5h 13mnonstop
$967American Airlines
Wed, Oct 21 - Sat, Oct 31
Delta Logo
7:05 am - 10:24 am
PHL
-
SEA
6h 19mnonstop
Delta Logo
1:45 pm - 12:21 am
SEA
-
PHL
7h 36m
1 stop
$969Delta
Wed, Oct 21 - Sun, Oct 25
Delta Logo
5:30 am - 12:23 pm
PHL
-
SEA
9h 53m
1 stop
Delta Logo
7:35 pm - 5:41 am
SEA
-
PHL
7h 06m
1 stop
$979Delta
Tue, Jul 14 - Mon, Jul 27
American Airlines Logo
7:35 pm - 10:56 pm
PHL
-
SEA
6h 21mnonstop
American Airlines Logo
10:35 pm - 6:48 am
SEA
-
PHL
5h 13mnonstop
$987American Airlines
Wed, Nov 4 - Sun, Nov 8
Delta Logo
7:05 am - 10:24 am
PHL
-
SEA
6h 19mnonstop
Delta Logo
9:50 pm - 6:03 am
SEA
-
PHL
5h 13mnonstop
$993Delta
Tue, Oct 27 - Tue, Oct 27
Delta Logo
11:45 am - 4:35 pm
PHL
-
SEA
7h 50m
1 stop
Delta Logo
9:20 pm - 11:02 am
SEA
-
PHL
10h 42m
1 stop
$1,013Delta

Good to Know - First Class Flights from Philadelphia to Seattle

Low seasonJune
Cheapest flight$479
Average price round-trip$1,719
Good deal round-trip$1,461
Good deal one-way$776
Best time to beat the crowds with an average 19% drop in price.
Flight from Philadelphia to Seattle
(avg. price over the last 2 weeks)
or less
or less

When to book first class flights to Seattle

Are your dates flexible? We break down the daily and monthly prices for first class flights to Seattle, so you can find the best time to fly.
Average price per month
Flight prices as travel date approaches

KAYAK’s Insights & Trends for Philadelphia to Seattle First Class Flights

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 is the cheapest month to fly First Class 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 First Class flights from Philadelphia to Seattle is June, where tickets cost $1,024 (round-trip) on average. On the other hand, the most expensive months are March and August, where the average cost of round-trip tickets is $1,477 and $1,318 respectively.

Which airlines offer First Class tickets between Philadelphia and Seattle?

There are 4 airlines that fly First Class from Philadelphia to Seattle. They are: United Airlines, Delta, American Airlines and Alaska Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $533 for a round-trip flight. On average, the best prices for flying First Class on this route can be found at Delta.

FAQs for First Class Philadelphia to Seattle Flights

  • How much is a first class ticket from Philadelphia to Seattle?

    The price of a first class flight ticket between Philadelphia and Seattle depends on many factors, like when the ticket was booked, the departure date, season and much more. The average price for all bookings made on KAYAK for this route over the last 2 weeks is $1,719 for a round-trip.

  • Is it cheaper to fly business or first class between Philadelphia and Seattle?

    Business class tickets are usually cheaper and that is true for this route, with an average price of $1,421 compared to $1,719 for a round-trip flight.

  • What is the best airline when flying first class between Philadelphia and Seattle?

    The highest-rated airline by KAYAK users offering first class flights for this route is Alaska Airlines, with an overall rating of 7.9.

KAYAK's Tips for Finding Cheap First Class Flights from Philadelphia to Seattle

  • Try flying direct if you’re looking to save, as direct first class tickets are cheaper on average.
  • What’s a good price for a first class ticket between Philadelphia and Seattle? 25% of our users found flights on this route for $798 or less one-way and $1,421 or less round-trip.

Reviews of the Top 5 Airlines Flying First Class from Philadelphia to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Philadelphia to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly first class 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.
7.9
Alaska AirlinesOverall score based on 12450 reviews
8.5Crew
7.8Comfort
7.1Food
7.0Entertainment
8.1Boarding
Airline reviews

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

2.0 MediocreAnonymous, Jun 2026
GTF - SEA
Read more Alaska Airlines reviews

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

I had ordered breakfast several days prior to the flight. 1) we did not rreceive our breakfast and crew knew nothing about it! We left TPA at 8 a.m. but drink cart did not appear until 10:30 a.m. and did not appear a second time either. Was unaware that Alaskan Air offers no music, flight aware, or movies.

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

It was efficient and great. DIA took a while to let us leave but other than that it was great.

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

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

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

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.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

Everything you need to know for your flight to Seattle

Cabin class types available on flights from Philadelphia to Seattle

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