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Cheap flights from Philadelphia to Seoul from $459

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Seoul departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:10 pm - 4:20 am
PHL
-
ICN
24h 10m
2 stops
United Airlines Logo
11:30 am - 5:30 pm
ICN
-
PHL
19h 00m
1 stop
$966United Airlines
Mon, Aug 3 - Mon, Aug 31
United Airlines Logo
6:15 pm - 5:40 am
PHL
-
ICN
21h 25m
1 stop
United Airlines Logo
12:45 pm - 5:09 pm
ICN
-
PHL
18h 24m
1 stop
$969United Airlines
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
5:01 pm - 4:20 am
PHL
-
ICN
22h 19m
2 stops
United Airlines Logo
11:30 am - 9:43 pm
ICN
-
PHL
23h 13m
2 stops
$970United Airlines
Thu, Aug 13 - Mon, Aug 31
Alaska Airlines Logo
7:00 am - 5:30 pm
PHL
-
ICN
21h 30m
1 stop
Alaska Airlines Logo
7:35 pm - 5:40 am
ICN
-
PHL
23h 05m
1 stop
$972Alaska Airlines
Wed, Sep 23 - Wed, Sep 30
Alaska Airlines Logo
6:59 pm - 5:30 pm
PHL
-
ICN
33h 31m
1 stop
Alaska Airlines Logo
7:35 pm - 5:56 pm
ICN
-
PHL
35h 21m
1 stop
$975Alaska Airlines
Tue, Sep 15 - Fri, Sep 25
Delta Logo
10:00 am - 4:00 am
PHL
-
ICN
29h 00m
1 stop
Delta Logo
8:35 pm - 11:40 pm
ICN
-
PHL
16h 05m
1 stop
$976Delta
Tue, Sep 1 - Sat, Oct 31
United Airlines Logo
9:27 am - 3:00 pm
PHL
-
ICN
40h 33m
1 stop
United Airlines Logo
4:50 pm - 10:11 am
ICN
-
PHL
30h 21m
2 stops
$977United Airlines
Sun, Oct 4 - Sun, Oct 18
Delta Logo
6:05 am - 4:50 pm
PHL
-
ICN
21h 45m
2 stops
Delta Logo
7:00 pm - 6:05 am
ICN
-
PHL
24h 05m
2 stops
$980Delta
Tue, Sep 1 - Thu, Oct 1
United Airlines Logo
6:13 pm - 5:40 am
PHL
-
ICN
21h 27m
1 stop
United Airlines Logo
12:45 pm - 4:58 pm
ICN
-
PHL
18h 13m
1 stop
$981United Airlines
Tue, Dec 1 - Tue, Dec 8
United Airlines Logo
6:00 am - 4:15 pm
PHL
-
ICN
20h 15m
1 stop
United Airlines Logo
12:45 pm - 10:46 pm
ICN
-
PHL
24h 01m
2 stops
$985United Airlines
Sat, Nov 28 - Sat, Dec 12

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United Airlines flights from Philadelphia to Incheon Intl Airport

Our best United Airlines deals on Philadelphia to Incheon Intl Airport flight tickets
United Airlines
Aug 3
PHL3:10 pmPhiladelphia
24h 10m
2 stops
ICN4:20 amIncheon Intl
Aug 31
ICN11:30 amIncheon Intl
19h 00m
1 stop
PHL5:30 pmPhiladelphia
$966
United Airlines
Nov 9
PHL6:15 pmPhiladelphia
21h 25m
1 stop
ICN5:40 amIncheon Intl
Nov 18
ICN12:45 pmIncheon Intl
18h 24m
1 stop
PHL5:09 pmPhiladelphia
$969
United Airlines
Aug 13
PHL5:01 pmPhiladelphia
22h 19m
2 stops
ICN4:20 amIncheon Intl
Aug 31
ICN11:30 amIncheon Intl
23h 13m
2 stops
PHL9:43 pmPhiladelphia
$970

Alaska Airlines flights from Philadelphia to Incheon Intl Airport

Our best Alaska Airlines deals on Philadelphia to Incheon Intl Airport flight tickets
Alaska Airlines
Aug 31
PHL7:02 amPhiladelphia
21h 28m
1 stop
ICN5:30 pmIncheon Intl
Sep 11
ICN7:35 pmIncheon Intl
23h 05m
1 stop
PHL5:40 amPhiladelphia
$972
Alaska Airlines
Sep 1
PHL6:59 pmPhiladelphia
33h 31m
1 stop
ICN5:30 pmIncheon Intl
Oct 31
ICN8:00 pmIncheon Intl
22h 40m
1 stop
PHL5:40 amPhiladelphia
$988
Alaska Airlines
Sep 1
PHL6:59 pmPhiladelphia
33h 31m
1 stop
ICN5:30 pmIncheon Intl
Oct 1
ICN7:35 pmIncheon Intl
35h 21m
1 stop
PHL5:56 pmPhiladelphia
$995

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Incheon Intl Airport 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 June 27, 2026.
Use the filters below to find and compare flights from Philadelphia to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/3

3:10 pm-4:20 am

2 stops24h 10m

Incheon Intl

Mon 8/31

11:30 am-5:30 pm

1 stop19h 00m

$966

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 11/9

6:15 pm-5:40 am

1 stop21h 25m

Incheon Intl

Wed 11/18

12:45 pm-5:09 pm

1 stop18h 24m

$969

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 8/13

5:01 pm-4:20 am

2 stops22h 19m

Incheon Intl

Mon 8/31

11:30 am-9:43 pm

2 stops23h 13m

$970

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 9/23

7:00 am-5:30 pm

1 stop21h 30m

Incheon Intl

Wed 9/30

7:35 pm-5:40 am

1 stop23h 05m

$972

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/15

6:59 pm-5:30 pm

1 stop33h 31m

Incheon Intl

Fri 9/25

7:35 pm-5:56 pm

1 stop35h 21m

$975

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/1

10:00 am-4:00 am

1 stop29h 00m

Incheon Intl

Sat 10/31

8:35 pm-11:40 pm

1 stop16h 05m

$976

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 10/4

9:27 am-3:00 pm

1 stop40h 33m

Incheon Intl

Sun 10/18

4:50 pm-10:11 am

2 stops30h 21m

$977

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/1

6:05 am-4:50 pm

2 stops21h 45m

Incheon Intl

Thu 10/1

7:00 pm-6:05 am

2 stops24h 05m

$980
Quickest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 12/1

6:13 pm-5:40 am

1 stop21h 27m

Incheon Intl

Tue 12/8

12:45 pm-4:58 pm

1 stop18h 13m

$981

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 11/28

6:00 am-4:15 pm

1 stop20h 15m

Incheon Intl

Sat 12/12

12:45 pm-10:46 pm

2 stops24h 01m

$985

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Philadelphia to Incheon Intl Airport

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 typical price of a round-trip flight between Philadelphia and Incheon Intl Airport?

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

The cheapest month to fly to Incheon Intl Airport from Philadelphia is in January. Flight prices, which tend to average around $845, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of January, then departing from Philadelphia during the month November is also very affordable. Most momondo users find prices during this month for around $868.

How far in advance should I book a flight from Philadelphia to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,129 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Philadelphia for as low as $866 on momondo.

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

When to book flights from Philadelphia to Incheon Intl Airport

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

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

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

Fastest flight time

19h 10m

Direct flights

None
The fastest flight from Philadelphia to Incheon Intl Airport takes 19h 10m
There are no direct flights from Philadelphia to Incheon Intl Airport. There are no popular flight routes from Philadelphia to Incheon Intl Airport.
Search flight deals

Frequently asked questions about flying from Philadelphia to Incheon Intl Airport

  • How far is Philadelphia to Incheon Intl by plane?

    Philadelphia and Incheon Intl are 6911.2 mi apart from one another. A reasonable flight in good conditions will take 19h 10m.

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

    Prices for flights from Philadelphia Airport to Incheon Intl Airport refresh daily.

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

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

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

    The travel and health documents you'll need for your trip to Incheon Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Philadelphia to Incheon Intl Airport

Compare and see reviews for airlines that fly from Philadelphia to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $780Free CancellationRating
7.1
11,268 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,777 reviews
Search American Airlines flights
DeltaPriceFrom $845Free CancellationRating
7.8
8,453 reviews
Search Delta flights
United AirlinesPriceFrom $850Free CancellationRating
7.4
9,896 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $915Free CancellationRating
8.1
550 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,129Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Daejeon
Suwon
Seongnam
Anyang

Why use momondo?

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

It is quick and easy to find Philadelphia to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

Flights from Philadelphia to Seoul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Philadelphia and Seoul 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 Philadelphia to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from Philadelphia and alert you when they change.

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