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$826+ Cheap flights from Gimpo Intl (GMP) to Philadelphia (PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — PHL
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheap flight deals from Gimpo Intl to Philadelphia

Best flights from Gimpo Intl to Philadelphia
Discover carefully curated flight deals from Gimpo Intl to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 2, 2026.

This WhyPayMore deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:00 amGMP - PHL
2 stops20h 37mJapan Airlines
Mon 3/25:00 amPHL - GMP
2 stops27h 05mJapan Airlines
Deal found 1/1$1,582
This Japan Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:00 amGMP - PHL
2 stops20h 37mMultiple Airlines
Mon 3/28:15 amPHL - GMP
2 stops23h 50mMultiple Airlines
Deal found 12/31$1,604
This Japan Airlines deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/308:00 amGMP - PHL
2 stops20h 33mMultiple Airlines
Sun 2/86:21 amPHL - GMP
2 stops25h 44mMultiple Airlines
Deal found 1/1$1,611
This WhyPayMore deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/217:40 pmGMP - PHL
2 stops56h 53mJapan Airlines
Sat 2/147:05 pmPHL - GMP
2 stops25h 50mJapan Airlines
Deal found 1/1$1,702

Find flight deals from Gimpo Intl to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Gimpo Intl (GMP) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,256
(Booking.com)

One-way from

$826
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$1,407
Provider with most accurate pricing for Seoul (SEL)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Philadelphia flights.
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From Seoul Gimpo Intl to Philadelphia
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One-way flight from Seoul Gimpo Intl to Philadelphia
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Highest demand for flights based on searches. 25% potential increase in price ($360 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Gimpo Intl 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, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Philadelphia that are best for you.

Fly from

Gimpo Intl

Fly to

Philadelphia

Route

Depart

Return

Price

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 2/20

8:00 am-2:37 pm

2 stops20h 37m

Philadelphia

Mon 3/2

5:00 am-10:05 pm

2 stops27h 05m

$1,582

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 2/20

8:00 am-2:37 pm

2 stops20h 37m

Philadelphia

Mon 3/2

8:15 am-10:05 pm

2 stops23h 50m

$1,604

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 1/30

8:00 am-2:33 pm

2 stops20h 33m

Philadelphia

Sun 2/8

6:21 am-10:05 pm

2 stops25h 44m

$1,611

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Wed 1/21

7:40 pm-2:33 pm

2 stops56h 53m

Philadelphia

Sat 2/14

7:05 pm-10:55 am

2 stops25h 50m

$1,702

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Thu 4/2

12:05 pm-7:21 am

2 stops32h 16m

$826

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Wed 4/1

12:05 pm-7:21 am

2 stops32h 16m

$828

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 3/20

1:50 pm-6:05 am

2 stops29h 15m

$838

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Tue 3/24

12:05 pm-7:21 am

2 stops32h 16m

$893

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Wed 2/25

7:40 pm-2:39 pm

2 stops32h 59m

$893

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Wed 3/18

7:40 pm-2:37 pm

2 stops31h 57m

$931

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 13 results
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Best time to book a flight from Gimpo Intl to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Gimpo Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Philadelphia from Seoul Gimpo Intl?

    Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to Philadelphia from Seoul Gimpo Intl. Booking flights from Seoul Gimpo Intl to Philadelphia (PHL) should be relatively easy as there are 0 daily inbound flights from Seoul Gimpo Intl from 0 different airlines.

  • How long is the flight from Seoul Gimpo Intl Airport to Philadelphia?

    There are many flights that can get you from Seoul Gimpo Intl Airport to Philadelphia in 20h 37m. Fly via Japan Airlines to get the fastest option. Airlines will cover a distance of 6902 mi.

  • Can I find deals for flights from Gimpo Intl to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Gimpo Intl to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gimpo Intl to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gimpo Intl to Philadelphia.

  • Can I find deals for business class flights from Gimpo Intl to Philadelphia?

    Yes. Cheapflights offers flight deals from Gimpo Intl to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
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