Cheap flights from Seoul to Philadelphia

Compare Seoul to Philadelphia flight deals

Find the cheapest month or even day of the year to fly to Philadelphia

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Flight deals from Seoul to Philadelphia

Looking for a cheap last-minute deal or the best round-trip flight from Seoul to Philadelphia? If you want to travel next month, round-trip fares start from $882. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Seoul to Philadelphia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to Philadelphia flights are currently cheapest in June.

Seoul to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found$867
Cheapest month to flyNovember

Finding cheap flights from Seoul to Philadelphia: Frequently asked questions

There are 6 airports in Philadelphia: Philadelphia International, Blue Bell, Philadelphia Trenton-Mercer, Greater Wilmington, Atlantic City International, and Allentown.
The best price we found for a round-trip flight from Seoul to Philadelphia is $867. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seoul to Philadelphia. But we found flights with one or more stops from $867.
There are no flights flying from Seoul to Philadelphia, as of March 2026.
The cheapest month to fly from Seoul to Philadelphia is usually November.
If you're flying from Seoul, the cheapest airport near Philadelphia is Philadelphia International – which is 11.2 km away from the center of Philadelphia. We've found flights to this airport from $867.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Philadelphia on Tuesday, November 3, 2026.
No airlines currently offer direct flights between Seoul and Philadelphia. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 4°C. July is typically the warmest month in Philadelphia, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -5°C. The rainiest month is July.
The cheapest airline that flies to Philadelphia is Air Canada.

Flying from Seoul to Philadelphia: what you need to know

  • Get your vacation planning started by considering where you'll board your flight from Seoul to Philadelphia. Incheon International Airport (ICN) and Gimpo International Airport (GMP) are Seoul's main airports.

  • Hop off the plane at Philadelphia's chief entry point, Philadelphia International Airport (PHL).

  • Philadelphia's timezone is UTC-4, which makes Philadelphia 13 hours behind Seoul.

  • To ensure you catch your Seoul to Philadelphia flight, leave enough time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general rule to follow.

  • During popular months such as July, you'll want to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during high season in general.

How to find the cheapest flights from Seoul to Philadelphia

  • To find cheap Seoul to Philadelphia flights, book early. Airlines typically offer lower fares when flights first go on sale.

  • Getting cheap plane tickets from Seoul to Philadelphia is easy if you're flexible with your trip dates. Use the 'Whole month' tool to see the lowest prices across each month and pick up an incredible deal.

  • Stay on top of deals for cheap flights from Seoul to Philadelphia by creating a Price Alert. We'll send you an email or notification through the app when a new low fare is offered.

  • Find an affordable Seoul to Philadelphia flight with the help of our filters. Select your preferred times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

Flying from Seoul

Incheon International Airport (ICN)

  • We make it simple to find a Seoul to Philadelphia flight with a stopover. To see your options leaving from Incheon International Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to explore your chosen city. Top stopovers include:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Pearson International Airport (YYZ)

    • Washington Dulles International Airport (IAD)

  • The distance from central Seoul to ICN is roughly 48 kilometers. Use Google Maps for the fastest way to get there, whether that's in your own car or with public transport.

  • Looking for a convenient hotel close to Incheon International Airport? If you've booked an early flight from Seoul to Philadelphia, these accommodation options will have you moments from check-in:

  • When it comes to the on-time performance of Incheon International Airport, data shows 54.5% of flights arrive within the expected time frame.

Gimpo International Airport (GMP)

  • GMP is roughly 16 kilometers from central Seoul. Plan ahead to work out the best way to arrive at the terminal.

  • You're going on vacation, so why not spend an extra night away from home? Think about kicking back in one of these accommodation options near Gimpo International Airport the day before your flight from Seoul to Philadelphia:

  • 76% of all departures from Gimpo International Airport make it to their destination as expected.

Arriving in Philadelphia

Philadelphia International Airport (PHL)

Trenton-Mercer Airport (TTN)

  • Trenton-Mercer Airport (TTN) is about 48 kilometers from the center of Philadelphia. Following your flight from Seoul to Philadelphia, it'll take you approximately 40 minutes to reach the heart of the city in a cab or ride-share.

  • If you choose to travel on public transport, the ride to the center takes 1 hour 45 minutes or so.

  • Forget about public transport schedules or cab lines. Grab a Trenton-Mercer Airport rental car and take your journey in whatever direction you like. Compare offers from Budget, National and Enterprise.

  • Get what you want, not just what's left over. Securing your ride from TTN four weeks in advance often means more savings and a wider choice of vehicles.

  • The address for Trenton-Mercer Airport is Scotch Road, Terminal Building.

Best time to go to Philadelphia

  • August is the most popular month for flights from Seoul to Philadelphia. To steer clear of the crowds, visit Philadelphia in February.

  • The warmest month in Philadelphia is July, with temperatures ranging between 18ºC (64ºF) and 32ºC (90ºF). Lock in your Seoul to Philadelphia ticket then if that's your definition of good weather.

  • If you like traveling in cooler conditions, look for a cheap flight from Seoul to Philadelphia in January when temperatures average between -7ºC (19ºF) and 9ºC (48ºF).

More about Philadelphia

Explore more of United States

  • You've seen Philadelphia, now it's time to explore other corners of United States. Journey about 129 kilometers north-east to New York to check off its popular sights. From Statue of Liberty to Central Park and Empire State Building, there's plenty to keep you busy.

  • Around 434 kilometers north-east of Philadelphia, Boston is another favorite stop in United States. Experience major highlights starting with Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.