PHL - ICN

$507 Find Cheap Flights from Philadelphia to Seoul Incheon Airport

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 Incheon Intl departing on 9/11. 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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KAYAK searches hundreds of travel sites at once for deals on flights to Incheon Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Incheon, 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 Incheon, as well as popular online travel agencies
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Cheap Flights from Philadelphia to Incheon Intl

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

Recent round-trip flight deals from Philadelphia to Incheon Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Philadelphia to Incheon Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
5:15 am - 8:30 pmPHL-ICN
26h 15m2 stops
 Logo
12:45 pm - 8:25 pmICN-PHL
20h 40m1 stop
Mon, May 19 - Tue, May 27
Air Canada Logo
3:25 pm - 4:15 pmPHL-ICN
35h 50m1 stop
Air Canada Logo
6:00 pm - 9:38 pmICN-PHL
16h 38m1 stop
$1,003Air Canada
Find Deal
Mon, Sep 8 - Wed, Sep 24
Air Canada Logo
9:45 am - 4:15 pmPHL-ICN
17h 30m1 stop
Air Canada Logo
5:50 pm - 9:51 amICN-PHL
29h 01m2 stops
$1,010Air Canada
Find Deal
Tue, Sep 16 - Tue, Oct 28
Delta Logo
6:00 am - 4:25 pmPHL-ICN
21h 25m1 stop
Delta Logo
7:40 pm - 5:46 amICN-PHL
23h 06m1 stop
$1,132Delta
Find Deal
Tue, Sep 16 - Tue, Sep 30
Delta Logo
1:00 pm - 4:00 amPHL-ICN
26h 00m2 stops
Delta Logo
7:20 pm - 5:46 amICN-PHL
23h 26m2 stops
$1,136Delta
Find Deal
Tue, Sep 16 - Tue, Sep 30
WestJet Logo
5:30 am - 6:45 pmPHL-ICN
24h 15m2 stops
WestJet Logo
8:45 pm - 11:04 amICN-PHL
27h 19m2 stops
$1,194WestJet
Find Deal
Wed, Jun 18 - Mon, Jun 23
United Airlines Logo
12:58 pm - 4:20 amPHL-ICN
26h 22m2 stops
United Airlines Logo
11:30 am - 12:30 amICN-PHL
26h 00m3 stops
$1,247United Airlines
Find Deal
Wed, Jul 9 - Mon, Jul 14
United Airlines Logo
8:00 am - 4:20 amPHL-ICN
31h 20m2 stops
United Airlines Logo
4:50 pm - 5:21 amICN-PHL
25h 31m1 stop
$1,251United Airlines
Find Deal
Tue, May 20 - Wed, Aug 20
WestJet Logo
6:00 am - 6:45 pmPHL-ICN
47h 45m2 stops
WestJet Logo
8:45 pm - 12:26 amICN-PHL
40h 41m2 stops
$1,265WestJet
Find Deal
Sat, May 31 - Mon, Jun 23
American Airlines Logo
6:31 am - 3:30 pmPHL-ICN
19h 59m1 stop
American Airlines Logo
5:25 pm - 12:57 amICN-PHL
20h 32m1 stop
$1,327American Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 25
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KAYAK's insights & trends for Philadelphia to Incheon Intl flights

Get data-powered insights and trends into flights from Philadelphia to Incheon Intl 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 Incheon Airport?

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

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

What is the cheapest month to fly from Philadelphia to Incheon Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Incheon Intl Airport, 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 Incheon Intl Airport is April, where tickets cost $870 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $1,579 and $1,301 respectively.

How far in advance should I book a flight from Philadelphia to Incheon Intl Airport?

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 Incheon Intl Airport, 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 Incheon Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonNovember
High seasonJune
Cheapest flight$507
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Philadelphia to Seoul Incheon Airport

When to book flights from Philadelphia to Incheon Intl

Are your dates flexible? Find out the best times to travel from Philadelphia to Incheon Intl 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 Philadelphia to Seoul Incheon Airport flights

  • What is the cheapest flight from Philadelphia to Incheon Intl Airport?

    In the last 3 days, the lowest price for a flight from Philadelphia to Incheon Intl Airport was $507 for a one-way ticket and $989 for a round-trip.

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

    Yes, you’ll need a passport to travel to Seoul Incheon Airport from Philadelphia.

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

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

  • Which airline alliances offer flights from Philadelphia to Seoul Incheon Airport?

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

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

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

  • Which is the best airline for flights from Philadelphia to Incheon, Korean Air or Delta?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Incheon are Korean Air and Delta. With an average price for the route of $1,497 and an overall rating of 8.4, Korean Air is the most popular choice. Delta is also a great choice for the route, with an average price of $1,192 and an overall rating of 8.0.

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

    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 Incheon Airport.

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

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

    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 Incheon Airport with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and ICN 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 Seoul Incheon Airport?

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

Top 5 airlines serving from Philadelphia to Incheon Intl

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Incheon. 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 Incheon Intl? 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 1066 reviews
8.2Entertainment
8.7Crew
8.5Boarding
8.1Food
8.3Comfort
Airline reviews

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

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

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.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

long flights are difficult but the crew and amenities made it a very good experience

Always have great flight experience on Korean Air. Glad to have been able to book this on Kayak/Under Pricer this year!!

An International flight from Cebu to Incheon was delayed the night before without a proper explanation. Same thing happened from Incheon to Cebu in the first leg. I will not fly Korean again. And I will ensure Delta their US partner hears about it. This is a routine by Korean to delay flights from and to Cebu via Incheon.

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

The food is always good and that flight was particularly good.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

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