PHL - SEL

$417 Find Cheap Flights from Philadelphia to Seoul

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 Seoul departing on 11/6. 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
1 adult, Economy

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

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

Cheap Flights from Philadelphia to Seoul (PHL-SEL)

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

Recent round-trip flight deals from Philadelphia to Seoul

Mon, Sep 1 - Fri, Sep 12
Air Canada Logo
3:20 pm - 4:15 pmPHL-ICN
35h 55m1 stop
Air Canada Logo
6:00 pm - 10:08 pmICN-PHL
17h 08m1 stop
$772Air Canada
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Thu, Sep 4 - Tue, Sep 16
Air Canada Logo
9:20 am - 4:15 pmPHL-ICN
17h 55m1 stop
Air Canada Logo
5:45 pm - 9:54 amICN-PHL
29h 09m2 stops
$778Air Canada
Find Deal
Mon, Sep 1 - Wed, Sep 17
Delta Logo
5:25 am - 2:10 pmPHL-ICN
19h 45m1 stop
Delta Logo
10:15 am - 4:38 pmICN-PHL
19h 23m1 stop
$826Delta
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Mon, Sep 15 - Fri, Sep 26
Delta Logo
5:25 am - 2:10 pmPHL-ICN
19h 45m1 stop
Delta Logo
7:20 pm - 5:45 amICN-PHL
23h 25m2 stops
$831Delta
Find Deal
Tue, Sep 16 - Tue, Sep 30
United Airlines Logo
8:15 am - 4:20 amPHL-ICN
31h 05m2 stops
United Airlines Logo
11:30 am - 12:45 amICN-PHL
26h 15m3 stops
$856United Airlines
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Tue, Sep 2 - Wed, Sep 17
United Airlines Logo
5:15 pm - 4:20 amPHL-ICN
22h 05m2 stops
United Airlines Logo
4:50 pm - 12:21 amICN-PHL
20h 31m2 stops
$861United Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 15
Japan Airlines Logo
1:39 pm - 10:55 amPHL-GMP
31h 16m2 stops
Japan Airlines Logo
7:50 am - 12:51 pmGMP-PHL
19h 01m2 stops
$861Japan Airlines
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Wed, Oct 15 - Thu, Oct 23
Japan Airlines Logo
9:15 pm - 10:45 amPHL-GMP
24h 30m2 stops
Japan Airlines Logo
7:55 am - 10:25 pmGMP-PHL
27h 30m2 stops
$866Japan Airlines
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Mon, Aug 18 - Mon, Aug 25
American Airlines Logo
5:00 am - 3:30 pmPHL-ICN
21h 30m1 stop
American Airlines Logo
5:25 pm - 1:19 amICN-PHL
20h 54m1 stop
$899American Airlines
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Sat, Aug 30 - Tue, Sep 2
American Airlines Logo
6:45 pm - 3:30 pmPHL-ICN
31h 45m1 stop
American Airlines Logo
5:25 pm - 10:57 pmICN-PHL
18h 32m1 stop
$926American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Philadelphia to Seoul flights

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

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

For Philadelphia to Seoul, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seoul back to Philadelphia, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Seoul, 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 Seoul is November, where tickets cost $935 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,555 and $1,258 respectively.

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

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

To get a below average price on the flight from Philadelphia to Seoul, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$417
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Philadelphia to Seoul Gimpo Intl

When to book flights from Philadelphia to Seoul

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

  • What is the cheapest flight from Philadelphia to Seoul?

    In the last 3 days, the lowest price for a flight from Philadelphia to Seoul was $417 for a one-way ticket and $772 for a round-trip.

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

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

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

    Philadelphia is served by only 1 airport and there are 2 airports in Seoul. You will leave Philadelphia from Philadelphia and you will be arriving in Seoul at one of these airports: Seoul Gimpo Intl or Incheon Intl.

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

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

  • Which airline alliances offer flights from Philadelphia to Seoul?

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

  • What is the most popular layover when flying to Seoul from Philadelphia?

    Toronto is the most popular layover city among KAYAK users traveling from Philadelphia to Seoul.

  • Which is the best airline for flights from Philadelphia to Seoul, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Seoul are Delta and United Airlines. With an average price for the route of $1,234 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,143 and an overall rating of 7.4.

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

    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 Seoul.

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

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

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

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

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

Reviews of the top 5 airlines serving from Philadelphia to Seoul

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Seoul. 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 Seoul? 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 1122 reviews
8.7Crew
8.2Entertainment
8.2Comfort
8.5Boarding
8.1Food
Airline reviews

Friendly flight attendants and gate agents. Very clean plane and food was good!

10.0 ExcellentAnonymous, Jul 2025DFW - ICN
Read more Korean Air reviews

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Staff members were not helpful they ignored all calls for an attendant.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

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

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

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

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

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

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

They could care less about you. Just under a 4 hour delay in Seattle, leading into a missed connection in Vancouver, which led to 2 more delays that added up to 3 more hours leaving us to have to sleep on the floor of the Toronto airport cause they don't help you find accomodations and they just book you on the next flight out. Took an additional 14 hours to get home. Always given the brush off to get rid of us. Worst airline ever

All good but I could barely get my arms and legs into the room in front of me. Have never been so cramped before. Plane left the gate on time, taxied very quickly and took off without waiting. Unique. Arrival on time. No problem

Both flights are delayed so I rate the whole experience as mediocre.

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I had a good experience. I liked being informed about the status of my luggage

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

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

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