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$377+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap 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 December 15, 2025.

This WhyPayMore deal was found by Cheapflights users on 12/15. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:35 pmICN - PHL
1 stop23h 02mHawaiian Airlines
Sat 1/107:06 pmPHL - ICN
1 stop33h 29mHawaiian Airlines
Deal found 12/15$502
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Thu 12/257:15 pmICN - PHL
1 stop27h 51mAmerican Airlines
Sat 1/318:07 pmPHL - ICN
1 stop30h 38mAmerican Airlines
Deal found 12/12$541
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/2612:45 pmICN - PHL
1 stop30h 26mUnited Airlines
Sat 1/105:00 pmPHL - ICN
2 stops33h 15mUnited Airlines
Deal found 12/15$572
This Delta deal was found by Cheapflights users on 12/15. 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 12/268:05 pmICN - PHL
2 stops23h 45mDelta
Sat 1/105:17 pmPHL - ICN
2 stops32h 13mDelta
Deal found 12/15$632
This Delta deal was found by Cheapflights users on 12/12. 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.
Thu 12/257:30 pmICN - PHL
1 stop29h 10mDelta
Sat 1/2411:27 amPHL - ICN
1 stop38h 03mDelta
Deal found 12/12$634
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/217:30 pmICN - PHL
1 stop18h 25mDelta
Tue 3/176:00 amPHL - ICN
1 stop20h 30mDelta
Deal found 12/13$683
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/217:30 pmICN - PHL
1 stop18h 25mDelta
Wed 3/183:45 pmPHL - ICN
1 stop24h 15mDelta
Deal found 12/13$697
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Thu 12/256:00 pmICN - PHL
2 stops20h 45mUnited Airlines
Sat 1/2412:27 pmPHL - ICN
2 stops61h 48mUnited Airlines
Deal found 12/12$730
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/217:30 pmICN - PHL
1 stop18h 25mDelta
Sat 3/145:50 amPHL - ICN
1 stop34h 10mDelta
Deal found 12/13$748
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/217:30 pmICN - PHL
1 stop18h 25mDelta
Mon 3/167:00 amPHL - ICN
2 stops33h 10mDelta
Deal found 12/13$751
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/216:00 pmICN - PHL
2 stops25h 32mUnited Airlines
Wed 3/188:00 amPHL - ICN
2 stops31h 40mUnited Airlines
Deal found 12/13$763
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Thu 12/2512:05 pmGMP - PHL
2 stops21h 55mMultiple Airlines
Sat 1/246:35 pmPHL - GMP
2 stops26h 20mMultiple Airlines
Deal found 12/12$1,550

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$502
(WhyPayMore)

One-way from

$377
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,447
Provider with most accurate pricing for Seoul (SEL)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Philadelphia flights.
Search Deals
From South Korea to Philadelphia
Search Deals
One-way flight from South Korea to Philadelphia
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($360 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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 12/26

8:35 pm-5:37 am

1 stop23h 02m

Philadelphia

Sat 1/10

7:06 pm-6:35 pm

1 stop33h 29m

$502

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 2/2

8:35 pm-6:03 pm

1 stop35h 28m

Philadelphia

Tue 2/10

7:06 pm-6:35 pm

1 stop33h 29m

$507

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 2/9

6:00 pm-12:07 pm

2 stops32h 07m

Philadelphia

Tue 2/17

8:35 am-5:40 am

1 stop31h 05m

$538

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-2:31 pm

3 stops39h 46m

Philadelphia

Sun 2/8

5:50 pm-4:15 pm

2 stops32h 25m

$538

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 2/2

6:00 pm-9:52 pm

1 stop17h 52m

Philadelphia

Tue 2/10

5:50 pm-5:40 am

2 stops45h 50m

$538

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 2/19

12:45 pm-10:24 am

2 stops35h 39m

Philadelphia

Mon 2/23

8:35 am-5:40 am

1 stop31h 05m

$538

DaeguPhiladelphia

TAE - PHL

TAEPHL

Daegu

Fri 3/6

7:40 am-10:50 pm

2 stops29h 10m

Philadelphia

Mon 3/9

6:25 pm-7:45 pm

2 stops36h 20m

$832

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Sun 2/1

12:05 pm-11:55 pm

2 stops49h 50m

Philadelphia

Wed 2/4

7:17 am-6:20 pm

2 stops45h 03m

$1,489

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Fri 1/30

8:00 am-2:33 pm

2 stops20h 33m

Philadelphia

Sun 2/8

6:21 am-10:05 pm

2 stops25h 44m

$1,543

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

Thu 12/25

12:05 pm-8:00 pm

2 stops21h 55m

Philadelphia

Sat 1/24

6:35 pm-10:55 am

2 stops26h 20m

$1,550

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 29 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, December is the cheapest month in which you can book a flight from South Korea to Philadelphia (average of $298). Flying from South Korea to Philadelphia in July is currently the most expensive (average of $638). 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 December 15, 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 December 15, 2025.
See what other customers who have flown with Korean Air and Delta 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
1,186 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

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
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

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
8,008 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

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 $502, Hawaiian Airlines can have you in Philadelphia from South Korea in 23h 02m. The distance between South Korea and Philadelphia is about 6915 mi. This flight may include one or multiple stops.

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

    $379 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $411 and $441, respectively.

  • 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, December is the cheapest month in which you can book a flight from South Korea to Philadelphia (average of $298). Flying from South Korea to Philadelphia in July is currently the most expensive (average of $638). 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
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester

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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 2 airlines flying from South Korea to Philadelphia

Discover the top 2 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$626Average$882FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$782Average$1,144FlexibilityNo cancel feeOn-time81%

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