$464 Cheap Flights from Philadelphia (PHL) to Seoul (GMP)

View $464 flight on Wed, Feb 4, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)

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Cheap Flights from Philadelphia to Seoul (PHL-GMP)

Prices were available within the past 7 days and start at $464 for one-way flights and $919 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Sun, Jan 18 - Wed, Jan 21
PHL
Philadelphia
GMP
Seoul
$919 Roundtrip, found 4 days ago
$919
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Sun, Jan 18 from Philadelphia to Seoul, returning Wed, Jan 21, priced at $919 found 4 days ago
Japan Airlines
Sun, Jan 18 - Wed, Jan 21
PHL
Philadelphia
GMP
Seoul
$926 Roundtrip, found 4 days ago
$926
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Sun, Jan 18 from Philadelphia to Seoul, returning Wed, Jan 21, priced at $926 found 4 days ago
Japan Airlines
Fri, Dec 12 - Tue, Dec 16
PHL
Philadelphia
GMP
Seoul
$952 Roundtrip, found 3 days ago
$952
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Fri, Dec 12 from Philadelphia to Seoul, returning Tue, Dec 16, priced at $952 found 3 days ago
Japan Airlines
Tue, Dec 9 - Tue, Dec 16
PHL
Philadelphia
GMP
Seoul
$972 Roundtrip, found 6 days ago
$972
Roundtrip
found 6 days ago
Select Japan Airlines flight, departing Tue, Dec 9 from Philadelphia to Seoul, returning Tue, Dec 16, priced at $972 found 6 days ago
Japan Airlines
Tue, Dec 2 - Sun, Dec 21
PHL
Philadelphia
GMP
Seoul
$975 Roundtrip, just found
$975
Roundtrip
just found
Select Japan Airlines flight, departing Tue, Dec 2 from Philadelphia to Seoul, returning Sun, Dec 21, priced at $975 just found
Japan Airlines
Wed, Dec 3 - Fri, Dec 12
PHL
Philadelphia
GMP
Seoul
$991 Roundtrip, found 4 days ago
$991
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Wed, Dec 3 from Philadelphia to Seoul, returning Fri, Dec 12, priced at $991 found 4 days ago
Japan Airlines
Sun, Dec 14 - Tue, Dec 16
PHL
Philadelphia
GMP
Seoul
$994 Roundtrip, found 3 days ago
$994
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Sun, Dec 14 from Philadelphia to Seoul, returning Tue, Dec 16, priced at $994 found 3 days ago
American Airlines
Fri, Oct 31 - Mon, Nov 17
PHL
Philadelphia
GMP
Seoul
$1,129 Roundtrip, found 5 days ago
$1,129
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Philadelphia to Seoul, returning Mon, Nov 17, priced at $1,129 found 5 days ago
All Nippon Airways
Wed, Apr 1 - Wed, Apr 15
PHL
Philadelphia
GMP
Seoul
$1,633 Roundtrip, found 4 days ago
$1,633
Roundtrip
found 4 days ago
Select All Nippon Airways flight, departing Wed, Apr 1 from Philadelphia to Seoul, returning Wed, Apr 15, priced at $1,633 found 4 days ago
Air China
Tue, Oct 14 - Tue, Oct 21
PHL
Philadelphia
GMP
Seoul
$3,684 Roundtrip, found 3 days ago
$3,684
Roundtrip
found 3 days ago
Select Air China flight, departing Tue, Oct 14 from Philadelphia to Seoul, returning Tue, Oct 21, priced at $3,684 found 3 days ago

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from $1,162
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from $1,162

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP) cost?
Snag a cheap one-way flight from $464 or cheap return flight from $919 from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)?
January is the least expensive month to fly from PHL to GMP. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHL to GMP flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)?
Nonstop flights from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHL to GMP?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)?
To land at Gimpo Intl. Airport (GMP) on schedule, opt for a flight that leaves from Philadelphia Intl. Airport (PHL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP) last-minute?
Booking your flight from PHL to GMP right before your trip is typically more expensive. However, if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a PHL to GMP flight and hotel package?
You can save money by booking a PHL to GMP flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Gimpo Intl. Airport (GMP)?
If you reserved your PHL to GMP flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Gimpo Intl.
Airlines serving
All Nippon Airways, Japan Airlines
Roundtrip price
$919
Distance
6906 mi

Book with confidence

Book with confidence

Philadelphia to Seoul Flights

The cheapest times to fly from Philadelphia to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Seoul are during the month of January. You can find some of the cheapest flights from Philadelphia to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Seoul

Sunday is one of the best days to book for cheap flights from Philadelphia to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $464 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Seoul Flights

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