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Cheap flights from Incheon Intl Airport to Philadelphia from $427

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Philadelphia departing on 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Incheon Intl Airport to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
Fri, Dec 26 - Sat, Jan 10
United Airlines Logo
12:45 pm - 11:41 am
ICN
-
PHL
36h 56m2 stops
United Airlines Logo
5:50 pm - 4:15 pm
PHL
-
ICN
32h 25m2 stops
$540United Airlines
Fri, Jan 30 - Sun, Feb 8
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
$574United Airlines
Fri, Dec 26 - Sat, Jan 10
American Airlines Logo
7:15 pm - 11:13 am
ICN
-
PHL
29h 58m1 stop
American Airlines Logo
5:00 am - 4:45 pm
PHL
-
ICN
21h 45m1 stop
$593American Airlines
Tue, Feb 3 - Fri, Feb 13
United Airlines Logo
12:45 pm - 9:52 pm
ICN
-
PHL
23h 07m1 stop
United Airlines Logo
6:20 pm - 4:15 pm
PHL
-
ICN
31h 55m1 stop
$601United Airlines
Sat, Jan 31 - Sun, Feb 22
United Airlines Logo
12:45 pm - 12:07 pm
ICN
-
PHL
37h 22m2 stops
United Airlines Logo
8:35 am - 4:15 pm
PHL
-
ICN
41h 40m1 stop
$610United Airlines
Sat, Jan 31 - Sun, Feb 22
United Airlines Logo
12:45 pm - 11:32 am
ICN
-
PHL
36h 47m2 stops
United Airlines Logo
6:20 pm - 4:15 pm
PHL
-
ICN
31h 55m1 stop
$611United Airlines
Sat, Jan 31 - Sun, Feb 22
United Airlines Logo
12:45 pm - 2:31 pm
ICN
-
PHL
39h 46m3 stops
United Airlines Logo
6:20 pm - 4:15 pm
PHL
-
ICN
31h 55m1 stop
$616United Airlines
Sat, Jan 31 - Sun, Feb 22
United Airlines Logo
12:45 pm - 2:31 pm
ICN
-
PHL
39h 46m3 stops
United Airlines Logo
8:35 am - 4:15 pm
PHL
-
ICN
41h 40m1 stop
$617United Airlines
Sat, Jan 31 - Sun, Feb 22
Delta Logo
8:05 pm - 5:50 am
ICN
-
PHL
23h 45m2 stops
Delta Logo
5:17 pm - 3:30 pm
PHL
-
ICN
32h 13m2 stops
$634Delta
Fri, Dec 26 - Sat, Jan 10

United Airlines flights from Incheon Intl Airport to Philadelphia

Our best United Airlines deals on Incheon Intl Airport to Philadelphia flight tickets
United Airlines
Jan 30
ICN12:45 pmIncheon Intl
36h 56m
2 stops
PHL11:41 amPhiladelphia
Feb 8
PHL5:50 pmPhiladelphia
32h 25m
2 stops
ICN4:15 pmIncheon Intl
$540
Find similar
United Airlines
Dec 26
ICN12:45 pmIncheon Intl
30h 26m
1 stop
PHL5:11 amPhiladelphia
Jan 10
PHL5:00 pmPhiladelphia
33h 15m
2 stops
ICN4:15 pmIncheon Intl
$574
Find similar
United Airlines
Jan 31
ICN12:45 pmIncheon Intl
23h 07m
1 stop
PHL9:52 pmPhiladelphia
Feb 22
PHL6:20 pmPhiladelphia
31h 55m
1 stop
ICN4:15 pmIncheon Intl
$601
Find similar

American Airlines flights from Incheon Intl Airport to Philadelphia

Our best American Airlines deals on Incheon Intl Airport to Philadelphia flight tickets
American Airlines
Feb 3
ICN7:15 pmIncheon Intl
29h 58m
1 stop
PHL11:13 amPhiladelphia
Feb 13
PHL5:00 amPhiladelphia
21h 45m
1 stop
ICN4:45 pmIncheon Intl
$593
Find similar
American Airlines
Jan 21
ICN7:15 pmIncheon Intl
36h 21m
2 stops
PHL5:36 pmPhiladelphia
Feb 14
PHL10:45 amPhiladelphia
64h 00m
2 stops
ICN4:45 pmIncheon Intl
$689
Find similar
American Airlines
Dec 21
ICN7:15 pmIncheon Intl
27h 51m
1 stop
PHL9:06 amPhiladelphia
Dec 22
PHL9:15 pmPhiladelphia
29h 30m
1 stop
ICN4:45 pmIncheon Intl
$2,213
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

8:35 pm-5:37 am

1 stop23h 02m

Philadelphia

Sat 1/10

7:06 pm-6:35 pm

1 stop33h 29m

$504

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-11:41 am

2 stops36h 56m

Philadelphia

Sun 2/8

5:50 pm-4:15 pm

2 stops32h 25m

$540

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

12:45 pm-5:11 am

1 stop30h 26m

Philadelphia

Sat 1/10

5:00 pm-4:15 pm

2 stops33h 15m

$574

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 2/3

7:15 pm-11:13 am

1 stop29h 58m

Philadelphia

Fri 2/13

5:00 am-4:45 pm

1 stop21h 45m

$593

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 1/31

12:45 pm-9:52 pm

1 stop23h 07m

Philadelphia

Sun 2/22

6:20 pm-4:15 pm

1 stop31h 55m

$601

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 1/31

12:45 pm-12:07 pm

2 stops37h 22m

Philadelphia

Sun 2/22

8:35 am-4:15 pm

1 stop41h 40m

$610

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 1/31

12:45 pm-11:32 am

2 stops36h 47m

Philadelphia

Sun 2/22

6:20 pm-4:15 pm

1 stop31h 55m

$611

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 1/31

12:45 pm-2:31 pm

3 stops39h 46m

Philadelphia

Sun 2/22

6:20 pm-4:15 pm

1 stop31h 55m

$616

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 1/31

12:45 pm-2:31 pm

3 stops39h 46m

Philadelphia

Sun 2/22

8:35 am-4:15 pm

1 stop41h 40m

$617

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

8:05 pm-5:50 am

2 stops23h 45m

Philadelphia

Sat 1/10

5:17 pm-3:30 pm

2 stops32h 13m

$634

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Incheon Intl Airport to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Incheon Intl Airport is in November. Flight prices, which tend to average around $626, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Philadelphia, with average flight prices from Incheon Intl Airport averaging around $709.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Incheon Intl Airport to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $919. On the other hand, Saturday is the most expensive day to depart from Incheon Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,072.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Incheon Intl Airport to Philadelphia in the afternoon for as low as $916. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the evening when prices are around $1,846.

Can stopping save me money on Incheon Intl Airport to Philadelphia flights?

You could potentially save up to 4% on your flight if you consider stops on a Incheon Intl Airport to Philadelphia flight.

How have Incheon Intl Airport to Philadelphia flight prices changed over time?

As of December 2025, prices for Incheon Intl Airport to Philadelphia flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Incheon Intl Airport to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Incheon Intl Airport to Philadelphia (ICN to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Philadelphia

Fastest flight time

17h 33m

Direct flights

None
The fastest flight from Incheon Intl Airport to Philadelphia takes 17h 33m
There are no direct flights from Incheon Intl Airport to Philadelphia. There are no popular flight routes from Incheon Intl Airport to Philadelphia.
Search flight deals

  • How far is Incheon Intl to Philadelphia by plane?

    A flight from Incheon Intl to Philadelphia will travel around 6911.2 mi. A reasonable flight in good conditions will take 17h 33m.

  • When did momondo last update prices for flights from Incheon Intl Airport to Philadelphia Airport?

    Prices for flights from Incheon Intl Airport to Philadelphia Airport are updated daily.

  • How many operators does momondo search for flights from Incheon Intl Airport to Philadelphia Airport?

  • How old do you have to be to fly from Incheon Intl Airport to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Incheon Intl Airport to Philadelphia?

Best airlines flying from Incheon Intl Airport to Philadelphia

Compare and see reviews for airlines that fly from Incheon Intl Airport to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $626Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Korean AirPriceFrom $782Free CancellationRating
8.4
1,184 reviews
Search Korean Air flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
Pottstown
Elkton
Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Philadelphia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from Seoul.

Can I find flights from Seoul to Philadelphia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Philadelphia from Seoul with this policy.

How can momondo help me find flights from Seoul to Philadelphia?

momondo helps you find the best flight between Seoul and Philadelphia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seoul to Philadelphia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seoul to Philadelphia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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