PHL - ICN

$439 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 4/23. 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, 0 bags

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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Incheon.
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Everything you should know

Cheapest round-trip
$867
Overall average: $1,088
Air Canada
Tue 9/1Thu 9/10
PHL - ICN • 2 stops
Cheapest one-way
$439
Typical prices: $527-$669
Multiple Airlines
Thu 4/23
PHL - ICN • 2 stops
Top airlines
Cheapest • from $867 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Incheon Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $866 (round-trip)
Shortest trip • 17h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Incheon Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Incheon Intl (PHL-ICN)

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

Recent round-trip flight deals from Philadelphia to Incheon Intl

Tue, Sep 1 - Thu, Sep 10
Air Canada Logo
3:25 pm - 4:05 pm
PHL
-
ICN
35h 40m
2 stops
Air Canada Logo
7:05 pm - 9:45 am
ICN
-
PHL
27h 40m
1 stop
$867Air Canada
Tue, Sep 1 - Thu, Oct 1
Air Canada Logo
3:25 pm - 4:05 pm
PHL
-
ICN
35h 40m
2 stops
Air Canada Logo
7:05 pm - 2:47 pm
ICN
-
PHL
32h 42m
2 stops
$870Air Canada
Tue, Apr 21 - Wed, May 13
Air Canada Logo
9:15 am - 4:05 pm
PHL
-
ICN
41h 50m
2 stops
Air Canada Logo
7:05 pm - 10:43 pm
ICN
-
PHL
16h 38m
1 stop
$871Air Canada
Tue, Apr 21 - Wed, May 13
Air Canada Logo
9:15 am - 4:05 pm
PHL
-
ICN
41h 50m
2 stops
Air Canada Logo
7:05 pm - 2:48 pm
ICN
-
PHL
32h 43m
2 stops
$875Air Canada
Fri, Sep 4 - Wed, Oct 7
Air Canada Logo
3:25 pm - 4:25 pm
PHL
-
ICN
36h 00m
1 stop
Air Canada Logo
6:00 pm - 2:47 pm
ICN
-
PHL
33h 47m
1 stop
$899Air Canada
Thu, Aug 6 - Mon, Nov 16
Air Canada Logo
10:05 am - 4:25 pm
PHL
-
ICN
17h 20m
1 stop
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
33h 52m
2 stops
$900Air Canada
Tue, Sep 1 - Thu, Oct 1
Air Canada Logo
3:25 pm - 4:05 pm
PHL
-
ICN
35h 40m
2 stops
Air Canada Logo
7:05 pm - 9:45 am
ICN
-
PHL
27h 40m
1 stop
$904Air Canada
Thu, Aug 6 - Mon, Nov 16
Air Canada Logo
10:05 am - 4:25 pm
PHL
-
ICN
17h 20m
1 stop
Air Canada Logo
8:10 pm - 10:46 pm
ICN
-
PHL
16h 36m
1 stop
$905Air Canada
Tue, Sep 1 - Thu, Oct 1
Air Canada Logo
3:25 pm - 4:05 pm
PHL
-
ICN
35h 40m
2 stops
Air Canada Logo
7:05 pm - 2:47 pm
ICN
-
PHL
32h 42m
2 stops
$907Air Canada
Sun, Apr 19 - Tue, May 19
Air Canada Logo
4:25 pm - 4:05 pm
PHL
-
ICN
34h 40m
2 stops
Air Canada Logo
5:45 pm - 9:48 am
ICN
-
PHL
29h 03m
2 stops
$908Air Canada
Booking Insights

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 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 January, where tickets cost $845 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,743 and $1,334 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 seasonFebruary
Cheapest flight$439
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 14% 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 $439 for a one-way ticket and $867 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?

    oneworld, SkyTeam, and Star Alliance 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 Asiana Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Incheon are Korean Air and Asiana Airlines. With an average price for the route of $1,319 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $1,061 and an overall rating of 8.1.

  • 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.

Reviews of the 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 1202 reviews
8.3Comfort
8.5Boarding
8.1Food
8.7Crew
8.2Entertainment
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

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.

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

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

Stop changing gates. Stop cancelling flights Stop moving my seat.

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

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.

They are always late and seats was also not having working charger

Broke my luggage and I can't get a resolution yet.

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

Extremely disappointing. My original Denver–Vancouver–Bangkok itinerary was cancelled due to a crewing issue. I was not proactively supported and had to drive back home after already reaching the airport. Communication was poor throughout, and attempts to contact customer service resulted in being on hold for nearly three hours without reaching anyone. Instead of being rebooked on the same direct routing the following day, I was rerouted onto a much longer itinerary via multiple cities and airlines, which resulted in arriving approximately 30 hours later than scheduled. At Denver airport, there was no visible Air Canada representative available to properly assist. Ground staff offered no real support beyond directing passengers to a phone number. There was no clear communication, no ownership, and no meaningful customer care during a major disruption. The final journey involved three flights instead of the original two, significantly increasing travel time and stress. Overall, the handling of the cancellation and lack of customer support was unacceptable. What could have been better? Clear communication during the cancellation Accessible customer service (phone support that actually answers) Proper in-person assistance at the airport Rebooking onto a comparable routing rather than a significantly longer one

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

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