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Cheap Flights from Philadelphia International to Seoul

Compare Philadelphia International to Seoul flight deals

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

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Flight deals from Philadelphia International Airport to Seoul

Looking for a cheap last-minute deal or the best return flight from Philadelphia International Airport to Seoul? If you want to travel next month, return fares start from R 14,375. Find the lowest prices on one-way and return tickets right here.
Seoul.R 8,020 per passenger.Departing Mon, 31 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 31 Aug, arriving in Incheon International.Price includes taxes and charges.From R 8,020, select.
Seoul.R 8,293 per passenger.Departing Wed, 15 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Philadelphia International on Wed, 15 Apr, arriving in Incheon International.Price includes taxes and charges.From R 8,293, select.
Seoul.R 8,436 per passenger.Departing Tue, 1 Sep.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Philadelphia International on Tue, 1 Sep, arriving in Incheon International.Price includes taxes and charges.From R 8,436, select.
Seoul.R 8,520 per passenger.Departing Tue, 21 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 21 Jul, arriving in Incheon International.Price includes taxes and charges.From R 8,520, select.
Seoul.R 8,727 per passenger.Departing Fri, 2 Oct.One-way flight with United.Outbound indirect flight with United, departs from Philadelphia International on Fri, 2 Oct, arriving in Incheon International.Price includes taxes and charges.From R 8,727, select.
Seoul.R 8,977 per passenger.Departing Tue, 10 Nov.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Philadelphia International on Tue, 10 Nov, arriving in Incheon International.Price includes taxes and charges.From R 8,977, select.
Seoul.R 9,073 per passenger.Departing Sat, 2 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Sat, 2 Jan, arriving in Incheon International.Price includes taxes and charges.From R 9,073, select.
Seoul.R 9,073 per passenger.Departing Sat, 2 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Sat, 2 May, arriving in Incheon International.Price includes taxes and charges.From R 9,073, select.
Seoul.R 10,118 per passenger.Departing Mon, 30 Mar.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Philadelphia International on Mon, 30 Mar, arriving in Incheon International.Price includes taxes and charges.From R 10,118, select.
Seoul.R 10,699 per passenger.Departing Tue, 2 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 2 Jun, arriving in Incheon International.Price includes taxes and charges.From R 10,699, select.

Find the cheapest month to fly from Philadelphia International to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Seoul flights are currently cheapest in August.
Mar
from R 10,118
Apr
from R 8,293
May
from R 9,073
Jun
from R 10,699
Jul
from R 8,520
Aug
from R 8,020
Sep
from R 8,436
Oct
from R 8,727
Nov
from R 8,977
Dec
Find prices
Jan
from R 9,073
Feb
Find prices

Alternative Philadelphia International to Seoul routes

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

Gimpo International

17km from central Seoul
Closest
from R 11,353
Search flights

Incheon International

48km from central Seoul
Cheapest
from R 8,020
Search flights

Philadelphia to Seoul: Flight information

The things to know before you go.
Cheapest flight foundR 8,020
Cheapest month to flyAugust

Finding cheap flights from Philadelphia International to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a return flight from Philadelphia International to Seoul is R 14,375. 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 Philadelphia International to Seoul. But we found flights with one or more stops from R 14,375.
As of March 2026, there are no flights flying from Philadelphia International to Seoul.
The cheapest month to fly from Philadelphia International to Seoul is usually April.
If you're flying from Philadelphia International Airport, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the centre of Seoul. We've found flights into this airport from R 14,375.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Seoul on Thursday, 16 April 2026.
No airlines currently offer direct flights between Philadelphia International Airport and Seoul. 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 Seoul 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 Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 3°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.
Currently, Air Canada offers the cheapest flight tickets to Seoul.

Flying from Philadelphia International Airport (PHL) to Seoul: what you need to know

  • Seoul is 13 hours ahead of Philadelphia, where Philadelphia International Airport is located. Seoul follows the UTC+9 timezone.

  • To avoid rushing for your PHL to Seoul flight, leave plenty of time for things like baggage drop and finding your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Longer lines at security and check-in are likely if you're jetting off during high season, so allow a bit more breathing room. A good rule for peak times? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • Consider adding a stopover to potentially unlock a cheaper flight ticket from PHL to Seoul. Just uncheck 'Direct flights only' during your search. Take a detour (and maybe pocket some savings) by stopping at one of these connecting airports:

    • Logan International Airport (BOS)

    • Harry Reid Airport (formerly McCarran Airport) (LAS)

    • Washington Dulles International Airport (IAD)

  • Located around 11 kilometres from the centre of Philadelphia, PHL can be reached in about 15 minutes by car. The journey on public transport takes roughly 45 minutes.

  • Want a hassle-free start to your holiday? Stay near PHL. Whether you're boarding an early flight from Philadelphia International Airport to Seoul or just don't want to be rushed, these hotels put convenience first:

  • When it comes to Philadelphia International Airport's on-time performance, data shows 78.93% of flights arrive within the expected time frame.

  • You'll find PHL at 8500 Essington Ave.

How to find the cheapest flights from Philadelphia International Airport (PHL) to Seoul

  • R 8,020 is the lowest price we've seen for a one-way Philadelphia International Airport to Seoul flight. A round-trip flight ticket right now is R 14,375. Depending on the availability when you book, these fares can change.

  • Booking ahead of time is often the key to finding a cheap flight from PHL to Seoul. Flight prices rise as demand increases, so the nearer your departure date, the more expensive your ticket may be.

  • The 'Whole month' tool will show you the cheapest tickets from Philadelphia International Airport to Seoul across the month. It's a good way to find a bargain if your dates aren't set in stone.

  • There's no need to check back in every day to see if fares have dropped when you create a Price Alert. We'll let you know when there's an updated deal for cheap flights from PHL to Seoul.

  • Tailor your trip with filters. Select your preferred departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Philadelphia International Airport to Seoul.

Airports in Seoul

Incheon International Airport (ICN)

  • The centre of Seoul is roughly 48 kilometres from Incheon International Airport (ICN). How long it takes to drive there will vary based on traffic conditions, so do a little research before you go.

  • It typically takes 1 hour 45 minutes if you're using public transport.

  • Consider staying in a hotel near ICN if you're coming in on a late flight from Philadelphia International Airport to Seoul. Choose one of these accommodation options and make your first night all about rest:

  • Pick up an Incheon International Airport rental car and discover Seoul and beyond with your own wheels. WECAR, Hi Rent A Car and Alamo are well-known companies you can book with here.

  • To secure the lowest price, book your ride from Incheon International Airport around four weeks ahead of your flight from PHL to Seoul.

Gimpo International Airport (GMP)

  • Central Seoul is around 16 kilometres from Gimpo International Airport (GMP). Disembark your flight from Philadelphia International Airport to Seoul and then keep an eye out for any airport signs that'll help you get to the centre.

  • Public transport will get you there in about 1 hour 5 minutes.

  • You'll find some great places ready to welcome you near GMP. Kick back and get cosy after your PHL to Seoul flight at any of these perfectly located options:

  • No need to worry about public transport schedules or long cab queues. Pick up a Gimpo International Airport rental car and take your journey in whatever direction you like. Check out the rates and availability from GOGO Rent a Car, Gogo Rental Car Seoul and Hi Rent A Car.

  • Avoid paying extra. Reserving your ride one week before your arrival at GMP can get you a lower rate.

Best time to go to Seoul

  • Carefully consider your trip dates before locking in your flight from Philadelphia International Airport to Seoul. The city comes alive during peak season, but hotel rates are generally higher and top attractions can be busy. Plan your trip to Seoul in the off-season for a quieter vibe.

  • The warmest month in Seoul is August, with temperatures ranging between 19ºC (66ºF) and 32ºC (90ºF). Lock in your Philadelphia International Airport to Seoul flight ticket then if that's your definition of good weather.

  • Search for cheap tickets from PHL to Seoul in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 4ºC (39ºF) on average.

More about Seoul

  • After booking your flight from Philadelphia International Airport to Seoul, find a hotel that offers both comfort and a great location. Make one of these accommodation options your base for exploring Seoul:

  • Every great holiday has to include a little sightseeing. Bukchon Hanok Village, Gyeongbokgung Palace and N Seoul Tower are essential stops on your Seoul itinerary.

Explore more of South Korea

  • Busan is just one of the many places in South Korea waiting to be discovered once you've seen Seoul. Around 322 kilometres away to the south-east, well-known attractions include Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple.

  • Daegu is another well-known destination in South Korea and is around 241 kilometres south-east of Seoul. No trip is complete without a visit to Duryu Park People's Garden, E-World and Apsan Park.

Plan the rest of your trip from Philadelphia to Seoul

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