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$478+ Cheap flights from Philadelphia (PHL) to South Korea

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Mar 28 — Apr 41
Sat 3/28
Sat 4/4
1 adult, Economy
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Cheap flight deals from Philadelphia to South Korea

Cheapest flights from Philadelphia to South Korea
Explore the most affordable flight options available from Philadelphia to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.

This Air Canada deal was found by Cheapflights users on 2/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:25 pm
PHL
-
ICN
1 stop35h 50m
Air Canada
Wed 9/236:00 pm
ICN
-
PHL
1 stop33h 47m
Air Canada
Deal found 2/26$824
This Air Canada deal was found by Cheapflights users on 2/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:25 pm
PHL
-
ICN
1 stop36h 05m
Air Canada
Wed 4/225:45 pm
ICN
-
PHL
2 stops34h 01m
Air Canada
Deal found 2/25$829
This Air Canada deal was found by Cheapflights users on 2/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/54:25 pm
PHL
-
ICN
2 stops34h 40m
Air Canada
Mon 4/205:45 pm
ICN
-
PHL
2 stops34h 01m
Air Canada
Deal found 2/23$830
This Air Canada deal was found by Cheapflights users on 2/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:15 am
PHL
-
ICN
2 stops41h 50m
Air Canada
Wed 5/137:05 pm
ICN
-
PHL
1 stop33h 33m
Air Canada
Deal found 2/22$833
This Air Canada deal was found by Cheapflights users on 2/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:25 pm
PHL
-
ICN
2 stops34h 40m
Air Canada
Tue 5/197:05 pm
ICN
-
PHL
1 stop16h 38m
Air Canada
Deal found 2/25$834
This BusinessClass deal was found by Cheapflights users on 2/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:30 pm
PHL
-
ICN
2 stops35h 35m
Asiana Airlines
Mon 4/275:45 pm
ICN
-
PHL
2 stops34h 01m
Asiana Airlines
Deal found 2/22$836
This Air Canada deal was found by Cheapflights users on 2/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:15 am
PHL
-
ICN
1 stop19h 15m
Air Canada
Thu 4/167:05 pm
ICN
-
PHL
1 stop33h 39m
Air Canada
Deal found 2/23$839
This BusinessClass deal was found by Cheapflights users on 2/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/54:25 pm
PHL
-
ICN
1 stop36h 05m
Asiana Airlines
Tue 4/287:05 pm
ICN
-
PHL
1 stop16h 38m
Asiana Airlines
Deal found 2/22$846
This KAYAK deal was found by Cheapflights users on 2/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:05 am
PHL
-
ICN
1 stop17h 20m
Asiana Airlines
Mon 9/75:45 pm
ICN
-
PHL
2 stops40h 47m
Asiana Airlines
Deal found 2/23$853
This KAYAK deal was found by Cheapflights users on 2/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/43:30 pm
PHL
-
ICN
2 stops59h 35m
Asiana Airlines
Mon 4/277:05 pm
ICN
-
PHL
1 stop16h 38m
Asiana Airlines
Deal found 2/22$854
This Booking.com deal was found by Cheapflights users on 2/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am
PHL
-
GMP
2 stops26h 20m
Multiple Airlines
Sat 9/2612:40 pm
GMP
-
PHL
2 stops23h 06m
Multiple Airlines
Deal found 2/22$1,104
This Booking.com deal was found by Cheapflights users on 2/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 am
PHL
-
GMP
2 stops22h 45m
Multiple Airlines
Mon 9/712:40 pm
GMP
-
PHL
2 stops23h 06m
Multiple Airlines
Deal found 2/23$1,154

Find flight deals from Philadelphia to South Korea

Keep the following information in mind while searching for Philadelphia to South Korea flight deals. Data was last updated February 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$829
(Air Canada)

One-way from

$478
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$858
Provider with most accurate pricing for Philadelphia-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Seoul (SEL) flights.
Search Deals
From Philadelphia to South Korea
Search Deals
One-way flight from Philadelphia to South Korea
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($256 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to South Korea 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 February 26, 2026.
Use the filters below to find and compare flights from Philadelphia to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 4/26

7:38 pm-4:00 am

1 stop19h 22m

Incheon Intl

Sun 5/17

6:50 pm-12:57 am

1 stop19h 07m

$895

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 5/3

6:00 am-4:25 pm

1 stop21h 25m

Incheon Intl

Sun 5/10

7:00 pm-5:37 am

1 stop23h 37m

$895

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 3/29

6:00 am-5:20 pm

1 stop22h 20m

Incheon Intl

Mon 4/27

7:20 pm-5:59 am

1 stop23h 39m

$935

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 4/1

6:00 am-5:20 pm

1 stop22h 20m

Incheon Intl

Tue 4/28

7:20 pm-5:59 am

1 stop23h 39m

$935

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 3/8

6:54 am-4:55 am

1 stop33h 01m

Incheon Intl

Sun 3/15

7:25 pm-9:22 am

1 stop26h 57m

$941

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 5/1

5:30 am-2:10 pm

1 stop19h 40m

Incheon Intl

Sun 5/10

4:25 pm-8:49 pm

1 stop17h 24m

$945

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 3/31

7:59 pm-3:00 pm

2 stops30h 01m

Incheon Intl

Wed 4/29

4:50 pm-10:29 am

2 stops30h 39m

$949

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 3/17

6:22 pm-6:35 pm

1 stop35h 13m

Incheon Intl

Fri 3/27

8:35 pm-6:05 am

1 stop22h 30m

$961

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 4/5

7:36 pm-4:00 am

1 stop19h 24m

Incheon Intl

Sun 4/12

7:40 pm-10:26 am

1 stop27h 46m

$1,006

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 5/9

5:45 am-4:50 pm

2 stops22h 05m

Incheon Intl

Sun 5/17

7:00 pm-6:10 am

2 stops24h 10m

$1,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 54 resultsSorted by cheapest first
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6

Best time to book a flight from Philadelphia to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Philadelphia 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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to South Korea

What is the cheapest month to book a flight from Philadelphia to South Korea?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to South Korea (average of $266). Flying from Philadelphia to South Korea in December is currently the most expensive (average of $684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to KR?

Find hourly flight availability from Philadelphia to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 26, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Philadelphia to South Korea by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Philadelphia to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to South Korea. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Philadelphia to South Korea flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated February 26, 2026.
Peruse reviews from past customers who have flown with Korean Air, Delta, and United Airlines from Philadelphia to South Korea to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,195 reviews
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,238 reviews
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,348 reviews
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
American Airlines
7.2
Good
11,353 reviews
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,748 reviews
Korean Air
8.4
Very good
1,195 reviews

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to South Korea. 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 from for flights from Philadelphia to South Korea?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to South Korea.

  • How long is the flight from Philadelphia to South Korea?

    A quick flight from Philadelphia to South Korea can take about 19h 22m. Delta provides one of the quickest options available for as low as $895. There are 6915 mi between Philadelphia and South Korea. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Philadelphia to South Korea one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $72. However, be on the lookout for offers from Spirit Airlines and Delta, as they are both options that can get you from Philadelphia to South Korea for a low price.

  • What are the most popular routes from Philadelphia to South Korea?

    The most popular flight routes from Philadelphia to South Korea are Philadelphia - Incheon Intl, Philadelphia - Seoul Gimpo Intl and Philadelphia - Busan Gimhae.

  • Can I find deals for flights from Philadelphia to South Korea that include hotel bookings?

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

  • How can I find direct flights from Philadelphia to South Korea?

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

  • Can I find deals for business class flights from Philadelphia to South Korea?

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

  • What is the cheapest month to book a flight from Philadelphia to South Korea?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to South Korea (average of $266). Flying from Philadelphia to South Korea in December is currently the most expensive (average of $684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Philadelphia to South Korea

Discover the top 5 airlines that operate flights from Philadelphia to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$504Average$1,141FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$675Average$1,119FlexibilityNo cancel feeOn-time67%
DeltaCheapest$845Average$1,202FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$845Average$1,018FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,129Average$1,593FlexibilityNo cancel feeOn-time81%

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