SEL - PHL

$424 Find Cheap Flights from Seoul to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to Philadelphia departing on 10/30. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Philadelphia, 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 Seoul to Philadelphia, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$484
Typical prices: $804-$957
American Airlines
Mon 11/17Mon 11/24
ICN - PHL • 1 stop
Cheapest one-way
$424
Typical prices: $470-$556
Multiple Airlines
Thu 10/30
ICN - PHL • 3 stops
Top airlines
American Airlines
Cheapest • from $484 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 24% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seoul to Philadelphia (SEL-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seoul to Philadelphia 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 Seoul to Philadelphia

Mon, Nov 17 - Mon, Nov 24
American Airlines Logo
7:15 pm - 10:59 amICN-PHL
29h 44m1 stop
American Airlines Logo
6:45 pm - 4:45 pmPHL-ICN
32h 00m1 stop
$484American Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
American Airlines Logo
7:15 pm - 9:04 amICN-PHL
27h 49m1 stop
American Airlines Logo
6:45 pm - 4:45 pmPHL-ICN
32h 00m1 stop
$491American Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
12:45 pm - 10:59 pmICN-PHL
48h 14m2 stops
United Airlines Logo
5:00 pm - 4:15 pmPHL-ICN
33h 15m2 stops
$522United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
6:00 pm - 9:52 pmICN-PHL
17h 52m1 stop
United Airlines Logo
5:00 pm - 4:15 pmPHL-ICN
33h 15m2 stops
$526United Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 17
Delta Logo
8:05 pm - 10:54 amICN-PHL
27h 49m2 stops
Delta Logo
7:10 am - 4:20 pmPHL-ICN
19h 10m1 stop
$623Delta
Find Deal
Fri, Oct 31 - Sat, Nov 15
Delta Logo
8:05 pm - 10:54 amICN-PHL
27h 49m2 stops
Delta Logo
6:29 pm - 3:30 pmPHL-ICN
31h 01m2 stops
$624Delta
Find Deal
Fri, Oct 31 - Mon, Nov 17
Alaska Airlines Logo
9:25 pm - 6:12 pmICN-PHL
33h 47m2 stops
Alaska Airlines Logo
7:12 pm - 7:25 pmPHL-ICN
34h 13m2 stops
$688Alaska Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 18
Korean Air Logo
9:10 am - 8:04 pmICN-PHL
23h 54m1 stop
Korean Air Logo
8:00 am - 5:45 pmPHL-ICN
19h 45m1 stop
$692Korean Air
Find Deal
Fri, Oct 31 - Mon, Nov 17
Korean Air Logo
9:10 am - 8:04 pmICN-PHL
23h 54m1 stop
Korean Air Logo
6:02 am - 4:35 pmPHL-ICN
20h 33m1 stop
$719Korean Air
Find Deal
Sat, Nov 8 - Thu, Nov 13
Alaska Airlines Logo
8:35 pm - 5:42 amICN-PHL
23h 07m1 stop
Alaska Airlines Logo
7:12 pm - 7:25 pmPHL-ICN
34h 13m2 stops
$757Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seoul to Philadelphia flights

Get data-powered insights and trends into flights from Seoul to Philadelphia 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 Seoul to Philadelphia?

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

If your flying dates are flexible, you should consider flying to Philadelphia on a Tuesday, 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 Seoul to Philadelphia. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to Philadelphia, 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 Seoul to Philadelphia is October, where tickets cost $689 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $1,414 and $1,050 respectively.

Good to know

Low seasonJune
Cheapest flight$424
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Seoul Incheon Airport to Philadelphia

When to book flights from Seoul to Philadelphia

Are your dates flexible? Find out the best times to travel from Seoul to Philadelphia 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 Seoul to Philadelphia

  • What is the cheapest flight from Seoul to Philadelphia?

    In the last 3 days, the lowest price for a flight from Seoul to Philadelphia was $424 for a one-way ticket and $484 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seoul and on arrival in Philadelphia.

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

    On your way to Philadelphia, you’ll fly out from one of these Seoul airports: Seoul Gimpo Intl or Incheon Intl. You’ll be landing at Philadelphia.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seoul to Philadelphia?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Seoul and Philadelphia, with Star Alliance being the most commonly used for this route.

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

    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 Seoul to Philadelphia.

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

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

    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 Philadelphia with an airline and back to Seoul with another airline.

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

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

Reviews of the top 3 airlines serving from Seoul to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Seoul to Philadelphia. 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 Seoul to Philadelphia? 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.
8.4
Korean AirOverall score based on 1148 reviews
8.3Comfort
8.7Crew
8.5Boarding
8.2Entertainment
8.1Food
Airline reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

The crew was not very visible. This might be a good thing for people who wanted to sleep but seemed odd when compared to the Atlantic crossing where they are more present in the cabin. The Food (beef) was not good. Tough and tasteless. Would love to see more choices on a long flight like that.

The flight was great. The gate location was way to far away!!!

This was our second flight using the Delta One class of service. Overall, it’s a good product but for me the POD configuration is a bit constrictive. I am an average size male at 5’ 10” height weighing 190 lbs so it’s not a size thing for me. I’d rather have extra wide seats without the POD walls to be honest.

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Convient flight. Good experience. No complaints other than the food quality seems to have decreased.

Food tray looked like penitentiary food - little effort to make it look appealing (packaging colour and design)

Movie selection was meh. Food was great. Crew as always great. I paid for premium because that’s the only way not to feel like a sardine. That’s how economy should be imo. Sadly passengers have to pay an extra $1000 to get what they should at base price but that’s all airlines. The airline industry in general treats passengers as cargo.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

Cramped seating for me. Luckily it wasn’t a long flight

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

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

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