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Cheap flights from Incheon Intl Airport to Philadelphia from $434

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 10/8. 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

American Airlines Logo
6:50 pm - 11:18 amICN-PHL
30h 28m1 stop
American Airlines Logo
10:33 am - 4:45 pmPHL-ICN
40h 12m2 stops
$497American Airlines
Find Deal
Fri, Feb 20 - Mon, Mar 2
Hawaiian Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pmPHL-ICN
33h 29m1 stop
$503Hawaiian Airlines
Find Deal
Fri, Dec 26 - Sat, Jan 10
Hawaiian Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pmPHL-ICN
33h 29m1 stop
$506Hawaiian Airlines
Find Deal
Fri, Dec 26 - Sat, Jan 10
Alaska Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Alaska Airlines Logo
7:06 pm - 6:35 pmPHL-ICN
33h 29m1 stop
$507Alaska Airlines
Find Deal
Fri, Dec 26 - Sat, Jan 10
Alaska Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Alaska Airlines Logo
7:06 pm - 6:35 pmPHL-ICN
33h 29m1 stop
$511Alaska Airlines
Find Deal
Fri, Dec 26 - Sat, Jan 10
United Airlines Logo
12:45 pm - 2:31 pmICN-PHL
39h 46m3 stops
United Airlines Logo
5:00 pm - 4:15 pmPHL-ICN
33h 15m2 stops
$526United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
Delta Logo
7:40 pm - 5:49 amICN-PHL
24h 09m1 stop
Delta Logo
5:20 pm - 4:30 pmPHL-ICN
33h 10m2 stops
$628Delta
Find Deal
Fri, Dec 26 - Sat, Jan 10
Delta Logo
7:40 pm - 5:49 amICN-PHL
24h 09m1 stop
Delta Logo
5:20 pm - 4:30 pmPHL-ICN
33h 10m2 stops
$632Delta
Find Deal
Fri, Dec 26 - Sat, Jan 10
Korean Air Logo
9:10 am - 12:43 pmICN-PHL
17h 33m1 stop
Korean Air Logo
6:02 am - 4:35 pmPHL-ICN
20h 33m1 stop
$955Korean Air
Find Deal
Fri, Nov 14 - Fri, Nov 21
Air Canada Logo
6:55 pm - 11:09 pmICN-PHL
42h 14m2 stops
Air Canada Logo
3:30 pm - 5:10 pmPHL-ICN
35h 40m2 stops
$1,276Air Canada
Find Deal
Fri, Nov 14 - Fri, Nov 21

Hawaiian Airlines flights from Incheon Intl Airport to Philadelphia

Our best Hawaiian Airlines deals on Incheon Intl Airport to Philadelphia flight tickets
Hawaiian Airlines
Dec 26
ICN8:35 pmIncheon Intl
23h 02m
1 stop
PHL5:37 amPhiladelphia
Jan 10
PHL7:06 pmPhiladelphia
33h 29m
1 stop
ICN6:35 pmIncheon Intl
$503
Find similar
Hawaiian Airlines
Dec 26
ICN8:35 pmIncheon Intl
23h 02m
1 stop
PHL5:37 amPhiladelphia
Jan 10
PHL7:06 pmPhiladelphia
33h 29m
1 stop
ICN6:35 pmIncheon Intl
$506
Find similar

Alaska Airlines flights from Incheon Intl Airport to Philadelphia

Our best Alaska Airlines deals on Incheon Intl Airport to Philadelphia flight tickets
Alaska Airlines
Dec 26
ICN8:35 pmIncheon Intl
23h 02m
1 stop
PHL5:37 amPhiladelphia
Jan 10
PHL7:06 pmPhiladelphia
33h 29m
1 stop
ICN6:35 pmIncheon Intl
$507
Find similar
Alaska Airlines
Dec 26
ICN8:35 pmIncheon Intl
23h 02m
1 stop
PHL5:37 amPhiladelphia
Jan 10
PHL7:06 pmPhiladelphia
33h 29m
1 stop
ICN6:35 pmIncheon Intl
$511
Find similar
Alaska Airlines
Oct 1
ICN9:25 pmIncheon Intl
33h 32m
3 stops
PHL5:57 pmPhiladelphia
Oct 10
PHL7:11 pmPhiladelphia
34h 49m
2 stops
ICN7:00 pmIncheon Intl
$3,408
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 September 30, 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 2/20

6:50 pm-11:18 am

1 stop30h 28m

Philadelphia

Mon 3/2

10:33 am-4:45 pm

2 stops40h 12m

$497

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

$503

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

$506

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

$507

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

$511

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-2:31 pm

3 stops39h 46m

Philadelphia

Sun 2/8

5:00 pm-4:15 pm

2 stops33h 15m

$526

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

7:40 pm-5:49 am

1 stop24h 09m

Philadelphia

Sat 1/10

5:20 pm-4:30 pm

2 stops33h 10m

$628

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

7:40 pm-5:49 am

1 stop24h 09m

Philadelphia

Sat 1/10

5:20 pm-4:30 pm

2 stops33h 10m

$632

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 11/14

9:10 am-12:43 pm

1 stop17h 33m

Philadelphia

Fri 11/21

6:02 am-4:35 pm

1 stop20h 33m

$955

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 11/14

6:55 pm-11:09 pm

2 stops42h 14m

Philadelphia

Fri 11/21

3:30 pm-5:10 pm

2 stops35h 40m

$1,276

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 March. Flight prices, which tend to average around $709, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from Incheon Intl Airport averaging around $729.

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 8% 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 September 2025, prices for Incheon Intl Airport to Philadelphia flights are approximately 19% 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

Direct flights

None
There are no direct flights from Incheon Intl Airport to Philadelphia. There are no popular flight routes from Incheon Intl Airport to Philadelphia.
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  • 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 16h 41m.

  • 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 $695Free CancellationRating
7.9
7,964 reviews
Search Delta flights
Korean AirPriceFrom $782Free CancellationRating
8.4
1,143 reviews
Search Korean Air flights
Air CanadaPriceFrom $811Free CancellationRating
7.1
10,000 reviews
Search Air Canada 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
Dewey Beach
Reading
Cherry Hill
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
West Chester

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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