ICN - PHL

$377 Find Cheap Flights from Seoul Incheon Airport 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 Incheon Intl to Philadelphia departing on 2/24. 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 Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon 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 Incheon to Philadelphia, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$475
Typical prices: $779-$976
Hawaiian Airlines
Fri 1/30Fri 2/6
ICN - PHL • 1 stop
Cheapest one-way
$377
Typical prices: $387-$829
Multiple Airlines
Tue 2/24
ICN - PHL • 3 stops
Top airlines
Hawaiian Airlines
Cheapest • from $502 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 26% price drop
July
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 Philadelphia!
Flight Deals
Booking Insights
Flight Deals

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

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

Fri, Jan 30 - Fri, Feb 6
Hawaiian Airlines Logo
8:35 pm - 6:03 pm
ICN
-
PHL
35h 28m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pm
PHL
-
ICN
33h 29m1 stop
$475Hawaiian Airlines
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
7:15 pm - 2:27 pm
ICN
-
PHL
33h 12m1 stop
American Airlines Logo
10:45 am - 4:45 pm
PHL
-
ICN
40h 00m2 stops
$498American Airlines
Fri, Dec 26 - Sat, Jan 10
Hawaiian Airlines Logo
8:35 pm - 5:37 am
ICN
-
PHL
23h 02m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pm
PHL
-
ICN
33h 29m1 stop
$502Hawaiian Airlines
Fri, Dec 26 - Sat, Jan 10
Hawaiian Airlines Logo
8:35 pm - 5:37 am
ICN
-
PHL
23h 02m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pm
PHL
-
ICN
33h 29m1 stop
$504Hawaiian Airlines
Mon, Feb 9 - Tue, Feb 17
Multiple Airlines Logo
8:35 pm - 6:03 pm
ICN
-
PHL
35h 28m1 stop
Multiple Airlines Logo
6:20 pm - 6:35 pm
PHL
-
ICN
34h 15m1 stop
$507Multiple Airlines
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
12:45 pm - 9:52 pm
ICN
-
PHL
23h 07m1 stop
United Airlines Logo
5:50 pm - 4:15 pm
PHL
-
ICN
32h 25m2 stops
$538United Airlines
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
12:45 pm - 9:52 pm
ICN
-
PHL
23h 07m1 stop
United Airlines Logo
8:35 am - 4:15 pm
PHL
-
ICN
41h 40m1 stop
$540United Airlines
Fri, Dec 26 - Sat, Jan 10
United Airlines Logo
12:45 pm - 5:11 am
ICN
-
PHL
30h 26m1 stop
United Airlines Logo
5:00 pm - 4:15 pm
PHL
-
ICN
33h 15m2 stops
$572United Airlines
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
6:00 pm - 5:34 pm
ICN
-
PHL
37h 34m2 stops
United Airlines Logo
5:00 pm - 4:15 pm
PHL
-
ICN
33h 15m2 stops
$574United Airlines
Sat, Jan 31 - Sun, Feb 22
United Airlines Logo
12:45 pm - 9:52 pm
ICN
-
PHL
23h 07m1 stop
United Airlines Logo
8:35 am - 4:15 pm
PHL
-
ICN
41h 40m1 stop
$599United Airlines
Booking Insights

KAYAK's insights & trends for Incheon Intl to Philadelphia flights

Get data-powered insights and trends into flights from Incheon Intl to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Incheon Intl Airport to Philadelphia?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Incheon Intl Airport to Philadelphia departing in January.

What’s the cheapest day of the week to fly from Seoul Incheon Airport to Philadelphia?

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

When flying from Seoul Incheon Airport to Philadelphia, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Seoul Incheon Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Incheon Intl Airport 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 Incheon Intl Airport to Philadelphia is November, where tickets cost $626 (return) on average. On the other hand, the most expensive months are August and January, where the average cost of round-trip tickets is $1,112 and $991 respectively.

Good to know

Low seasonMarch
Cheapest flight$377
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Seoul Incheon Airport to Philadelphia

When to book flights from Incheon Intl to Philadelphia

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

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

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to Philadelphia was $377 for a one-way ticket and $475 for a round-trip.

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

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

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

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

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

    SkyTeam is the only airline alliance operating flights between Seoul Incheon Airport and Philadelphia.

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

    The two airlines most popular with KAYAK users for flights from Incheon to Philadelphia are Korean Air and Delta. With an average price for the route of $1,144 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 $882 and an overall rating of 7.9.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Seoul Incheon Airport 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 Incheon Airport 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 Incheon Airport with another airline. Booking your flights between Seoul Incheon Airport and PHL 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 Seoul Incheon Airport 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 Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Incheon Intl to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Incheon 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 Incheon Intl 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 1186 reviews
8.7Crew
8.2Entertainment
8.5Boarding
8.1Food
8.3Comfort
Airline reviews

Great service and comfort level. You can have more of vegetarian food options.

10.0 ExcellentAnonymous, Nov 2025
ICN - SFO
Read more Korean Air reviews

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

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.

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.

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Everything you need to know for your flight from Incheon Intl to Philadelphia

Information on your arrival and departure airports