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$436+ Cheap flights from South Korea to Philadelphia (PHL)

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from South Korea to Philadelphia

Keep the following information in mind while searching for South Korea to Philadelphia flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$490
(American Airlines)

One-way from

$436
(Delta)

Popular in

April

Cheapest in

October

Average price

$689
Provider with most accurate pricing for Seoul (SEL)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Philadelphia flights.
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From South Korea to Philadelphia
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One-way flight from South Korea to Philadelphia
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Highest demand for flights based on searches. 17% potential increase in price ($191 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from South Korea to Philadelphia

Cheapest flights from South Korea to Philadelphia
Explore the most affordable flight options available from South Korea to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:55 pmICN - PHL
2 stops28h 31mAmerican Airlines
Mon 11/176:45 pmPHL - ICN
1 stop32h 00mAmerican Airlines
Deal found 10/27$490
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3111:55 amICN - PHL
2 stops24h 14mUnited Airlines
Tue 11/1112:22 pmPHL - ICN
3 stops27h 18mUnited Airlines
Deal found 10/27$518
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:05 pmICN - PHL
3 stops34h 02mUnited Airlines
Tue 11/188:15 amPHL - ICN
2 stops31h 25mUnited Airlines
Deal found 10/29$519
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:15 pmICN - PHL
2 stops40h 28mAmerican Airlines
Sat 1/103:40 pmPHL - ICN
2 stops59h 05mAmerican Airlines
Deal found 10/27$587
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:30 pmICN - PHL
1 stop28h 24mDelta
Tue 11/186:14 amPHL - ICN
1 stop19h 16mDelta
Deal found 10/27$618
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:30 pmICN - PHL
1 stop35h 37mDelta
Mon 11/177:10 amPHL - ICN
1 stop19h 10mDelta
Deal found 10/29$620
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:40 pmICN - PHL
1 stop24h 10mDelta
Sat 1/1012:41 pmPHL - ICN
1 stop38h 09mDelta
Deal found 10/27$630
This Gotogate deal was found by Cheapflights users on 10/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:45 amGMP - PHL
2 stops27h 25mANA
Wed 12/101:15 pmPHL - GMP
2 stops32h 05mANA
Deal found 10/29$1,531
This Japan Airlines deal was found by Cheapflights users on 10/27. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:00 amGMP - PHL
2 stops23h 26mMultiple Airlines
Tue 1/66:15 amPHL - GMP
2 stops25h 50mMultiple Airlines
Deal found 10/27$1,688
This Japan Airlines deal was found by Cheapflights users on 10/29. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:00 amGMP - PHL
2 stops20h 37mMultiple Airlines
Wed 12/106:30 amPHL - GMP
2 stops25h 35mMultiple Airlines
Deal found 10/29$1,694
This Ovago deal was found by Cheapflights users on 10/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:00 amGMP - PHL
2 stops20h 38mJapan Airlines
Tue 1/63:07 pmPHL - GMP
2 stops29h 48mJapan Airlines
Deal found 10/27$1,755
This Ovago deal was found by Cheapflights users on 10/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:40 pmGMP - PHL
2 stops32h 57mJapan Airlines
Thu 12/187:05 amPHL - GMP
2 stops37h 50mJapan Airlines
Deal found 10/27$1,930

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea to Philadelphia 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 October 29, 2025.
Use the filters below to find and compare flights from South Korea to Philadelphia that are best for you.

Fly from

South Korea

Fly to

Philadelphia

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-2:31 pm

3 stops39h 46m

Philadelphia

Sun 2/8

8:35 am-4:15 pm

1 stop41h 40m

$518

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 11/25

6:00 pm-10:24 am

2 stops30h 24m

Philadelphia

Tue 1/6

3:01 pm-5:40 am

2 stops24h 39m

$518

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 2/20

6:00 pm-9:33 pm

1 stop17h 33m

Philadelphia

Mon 3/2

6:20 pm-5:40 am

1 stop21h 20m

$519

DaeguPhiladelphia

TAE - PHL

TAEPHL

Daegu

Thu 4/16

7:35 am-5:43 am

2 stops35h 08m

Philadelphia

Mon 4/20

6:30 pm-8:35 pm

2 stops37h 05m

$796

DaeguPhiladelphia

TAE - PHL

TAEPHL

Daegu

Thu 4/16

7:35 am-12:25 am

2 stops29h 50m

Philadelphia

Mon 4/20

7:20 pm-8:35 pm

2 stops36h 15m

$819

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Wed 3/18

12:25 pm-12:26 am

2 stops49h 01m

Philadelphia

Sun 3/22

6:10 am-10:30 pm

2 stops51h 20m

$1,429

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 12/5

7:45 am-9:10 pm

2 stops27h 25m

Philadelphia

Wed 12/10

1:15 pm-11:20 am

2 stops32h 05m

$1,531

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 1/30

8:00 am-2:28 pm

2 stops20h 28m

Philadelphia

Sun 2/8

6:15 am-10:05 pm

2 stops25h 50m

$1,535

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Mon 4/6

7:55 am-2:47 pm

2 stops19h 52m

Philadelphia

Mon 5/18

6:23 am-6:00 pm

2 stops22h 37m

$1,622

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Tue 11/25

8:00 am-5:26 pm

2 stops23h 26m

Philadelphia

Tue 1/6

6:15 am-10:05 pm

2 stops25h 50m

$1,688

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 32 results
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Best time to book a flight from South Korea to Philadelphia

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

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

Currently, October is the cheapest month in which you can book a flight from South Korea to Philadelphia (average of $335). Flying from South Korea to Philadelphia in July is currently the most expensive (average of $641). 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 KR to PHL?

Find hourly flight availability from South Korea to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

One of the essential ways to save on airfare from South Korea to Philadelphia is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 46% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from South Korea to Philadelphia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their South Korea to Philadelphia flight should consider departing on Saturday evenings 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 Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated October 29, 2025.
See what other customers who have flown with Korean Air, Delta, and Air Canada from South Korea to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
7,993 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,373 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

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

    Philadelphia (PHL) is the airport you will fly into if you book a flight from South Korea to Philadelphia. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

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

    For as low as $819, United Airlines can have you in Philadelphia from South Korea in 29h 50m. The distance between South Korea and Philadelphia is about 6980 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Korea to Philadelphia 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 South Korea to Philadelphia?

    Currently, October is the cheapest month in which you can book a flight from South Korea to Philadelphia (average of $335). Flying from South Korea to Philadelphia in July is currently the most expensive (average of $641). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace

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Alternative routes for South Korea to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Korea to Philadelphia

Discover the top 3 airlines that operate flights from South Korea to Philadelphia. 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$633Average$886FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$782Average$1,144FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$811Average$975FlexibilityNo cancel feeOn-time67%

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