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Cheap Flights from Seoul (SELA) to Philadelphia (PHLA)

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 return flight from Seoul to Philadelphia? If you want to travel next month, return fares start from £957. Find the lowest prices on one-way and return tickets right here.
Philadelphia.£402 per passenger.Departing Tue, 18 Aug.One-way flight with Zipair.Outbound indirect flight with Zipair, departs from Incheon International on Tue, 18 Aug, arriving in Philadelphia International.Price includes taxes and charges.From £402, select.
Philadelphia.£422 per passenger.Departing Tue, 5 May.One-way flight with Jeju Air.Outbound indirect flight with Jeju Air, departs from Incheon International on Tue, 5 May, arriving in Philadelphia International.Price includes taxes and charges.From £422, select.
Philadelphia.£483 per passenger.Departing Thu, 8 Oct.One-way flight with Zipair.Outbound indirect flight with Zipair, departs from Incheon International on Thu, 8 Oct, arriving in Philadelphia International.Price includes taxes and charges.From £483, select.
Philadelphia.£485 per passenger.Departing Mon, 1 Jun.One-way flight with Zipair.Outbound indirect flight with Zipair, departs from Incheon International on Mon, 1 Jun, arriving in Philadelphia International.Price includes taxes and charges.From £485, select.
Philadelphia.£596 per passenger.Departing Mon, 11 Jan.One-way flight with Xiamen Airlines.Outbound indirect flight with Xiamen Airlines, departs from Incheon International on Mon, 11 Jan, arriving in Philadelphia International.Price includes taxes and charges.From £596, select.
Philadelphia.£600 per passenger.Departing Mon, 13 Apr.One-way flight with Air Premia.Outbound indirect flight with Air Premia, departs from Incheon International on Mon, 13 Apr, arriving in Philadelphia International.Price includes taxes and charges.From £600, select.
Philadelphia.£634 per passenger.Departing Tue, 8 Sep.One-way flight with EVA Air.Outbound indirect flight with EVA Air, departs from Incheon International on Tue, 8 Sep, arriving in Philadelphia International.Price includes taxes and charges.From £634, select.
Philadelphia.£693 per passenger.Departing Sat, 18 Jul.One-way flight with Zipair.Outbound indirect flight with Zipair, departs from Incheon International on Sat, 18 Jul, arriving in Philadelphia International.Price includes taxes and charges.From £693, select.
Philadelphia.£715 per passenger.Departing Thu, 12 Nov.One-way flight with EVA Air.Outbound indirect flight with EVA Air, departs from Incheon International on Thu, 12 Nov, arriving in Philadelphia International.Price includes taxes and charges.From £715, select.
Philadelphia.£831 per passenger.Departing Thu, 31 Dec.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Incheon International on Thu, 31 Dec, arriving in Philadelphia International.Price includes taxes and charges.From £831, select.

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 August.
Apr
from £600
May
from £422
Jun
from £485
Jul
from £693
Aug
from £402
Sep
from £634
Oct
from £483
Nov
from £715
Dec
from £831
Jan
from £596
Feb
Find prices
Mar
Find prices

Alternative Seoul to Philadelphia routes

Looking for the cheapest, fastest or easiest route from Seoul to Philadelphia? You could fly into the following airports instead.

Philadelphia International

7 miles from central Philadelphia
ClosestCheapest
from £402
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Blue Bell

14 miles from central Philadelphia
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Philadelphia Trenton-Mercer

29 miles from central Philadelphia
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Greater Wilmington

30 miles from central Philadelphia
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Atlantic City International

46 miles from central Philadelphia
from £698
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Allentown

51 miles from central Philadelphia
Search flights

Seoul to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found£402
Cheapest month to flyAugust

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 return flight from Seoul to Philadelphia is £741. 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 £741.
As of April 2026, there are no flights flying from Seoul to Philadelphia.
The cheapest month to fly from Seoul to Philadelphia is usually September.
If you're flying from Seoul, the cheapest airport near Philadelphia is Philadelphia International – which is 7.0 miles away from the centre of Philadelphia. We've found flights into this airport from £741.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Philadelphia on Monday, 14 September 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 April, the average temperature is usually around 10°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 Delta .

Flying from Seoul to Philadelphia: what you need to know

  • Get your holiday 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 kms (30 miles). 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 kms (10 miles) from central Seoul. Plan ahead to work out the best way to arrive at the terminal.

  • You're going on holiday, 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 kms (30 miles) from the centre 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 centre 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 travelling 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 80 miles 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 270 miles north-east of Philadelphia, Boston is another favourite stop in United States. Experience major highlights starting with Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

Plan the rest of your trip from Seoul to Philadelphia

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