ICN - PHL

$310 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 3/5. 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
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Everything you should know

Cheapest round-trip
$471
Overall average: $731
Air Canada
Fri 2/20Mon 3/2
ICN - PHL • 2 stops
Cheapest one-way
$310
Typical prices: $439-$535
Air Canada
Thu 3/5
ICN - PHL • 2 stops
Top airlines
Air Canada
Cheapest • from $471 (round-trip)
Delta
Best reviews • 7.9 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, Feb 20 - Mon, Mar 2
Air Canada Logo
5:55 pm - 2:47 pm
ICN
-
PHL
34h 52m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
59h 40m
2 stops
$471Air Canada
Mon, Mar 9 - Tue, Apr 14
Air Canada Logo
5:55 pm - 3:49 pm
ICN
-
PHL
34h 54m
2 stops
Air Canada Logo
3:30 pm - 4:05 pm
PHL
-
ICN
35h 35m
2 stops
$476Air Canada
Tue, Feb 24 - Mon, Mar 2
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
57h 52m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
35h 40m
2 stops
$484Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:05 pm
PHL
-
ICN
41h 00m
2 stops
$487Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:05 pm
PHL
-
ICN
41h 00m
2 stops
$488Air Canada
Tue, Feb 24 - Tue, Mar 3
Air Canada Logo
6:55 pm - 10:46 pm
ICN
-
PHL
41h 51m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
35h 40m
2 stops
$489Air Canada
Mon, Mar 9 - Tue, Apr 14
Air Canada Logo
5:55 pm - 3:49 pm
ICN
-
PHL
34h 54m
2 stops
Air Canada Logo
4:25 pm - 5:30 pm
PHL
-
ICN
36h 05m
1 stop
$495Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:25 pm
PHL
-
ICN
17h 20m
1 stop
$502Air Canada
Sun, Mar 15 - Sun, Mar 22
Air Canada Logo
5:55 pm - 3:49 pm
ICN
-
PHL
34h 54m
2 stops
Air Canada Logo
3:30 pm - 4:15 pm
PHL
-
ICN
35h 45m
2 stops
$524Air Canada
Mon, Mar 2 - Thu, Mar 26
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
57h 52m
2 stops
Air Canada Logo
3:30 pm - 5:30 pm
PHL
-
ICN
61h 00m
2 stops
$545Air Canada
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.

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 $1,092 respectively.

Good to know

Low seasonJanuary
Cheapest flight$310
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 11% 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 $310 for a one-way ticket and $471 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.

  • 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 airline 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.
7.9
DeltaOverall score based on 8130 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

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

Information on your arrival and departure airports