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$410+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap 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 June 16, 2025.

Round-trip from

$856
(Delta)

One-way from

$410
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,108
From Philadelphia to South Korea
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One-way flight from Philadelphia to South Korea
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Highest demand for flights based on searches. 6% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 16, 2025.

This Delta deal was found by Cheapflights users on 6/14. 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.
Sat 9/137:00 amPHL - ICN
1 stop19h 20mDelta
Sun 9/216:50 pmICN - PHL
1 stop27h 37mDelta
Deal found 6/14$856
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 10/16:29 pmPHL - ICN
1 stop20h 51mUnited Airlines
Thu 10/1611:30 amICN - PHL
3 stops26h 15mUnited Airlines
Deal found 6/16$857
This Air Canada deal was found by Cheapflights users on 6/14. 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.
Mon 9/83:25 pmPHL - ICN
1 stop35h 50mAir Canada
Wed 9/246:00 pmICN - PHL
1 stop16h 38mAir Canada
Deal found 6/14$866
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 10/149:00 pmPHL - ICN
1 stop29h 30mAmerican Airlines
Tue 10/286:50 pmICN - PHL
1 stop19h 07mAmerican Airlines
Deal found 6/16$867
This KAYAK deal was found by Cheapflights users on 6/14. 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.
Mon 9/19:15 pmPHL - GMP
2 stops35h 35mJapan Airlines
Fri 9/127:20 pmGMP - PHL
2 stops32h 27mJapan Airlines
Deal found 6/14$875
This Travelocity deal was found by Cheapflights users on 6/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/163:20 pmPHL - ICN
2 stops59h 45mMultiple Airlines
Mon 8/2510:35 amICN - PHL
2 stops24h 32mMultiple Airlines
Deal found 6/15$899
This Travelocity deal was found by Cheapflights users on 6/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:30 amPHL - GMP
2 stops25h 20mMultiple Airlines
Mon 10/277:45 amGMP - PHL
2 stops45h 06mMultiple Airlines
Deal found 6/15$919
This oojo deal was found by Cheapflights users on 6/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2010:20 amPHL - ICN
2 stops46h 45mEtihad Airways
Mon 11/312:50 amICN - PHL
2 stops30h 32mEtihad Airways
Deal found 6/14$1,197
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/307:30 amPHL - PUS
2 stops24h 15mMultiple Airlines
Wed 8/67:35 amPUS - PHL
2 stops27h 54mMultiple Airlines
Deal found 6/15$1,271
This Delta deal was found by Cheapflights users on 6/14. 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.
Mon 12/297:19 pmPHL - PUS
2 stops35h 26mDelta
Wed 1/284:10 pmPUS - PHL
2 stops21h 36mDelta
Deal found 6/14$1,472
This KAYAK deal was found by Cheapflights users on 6/14. 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.
Mon 12/297:10 amPHL - TAE
2 stops22h 35mKorean Air
Wed 1/287:40 amTAE - PHL
2 stops30h 06mKorean Air
Deal found 6/14$1,486
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:05 amPHL - GMP
2 stops36h 00mANA
Tue 11/47:50 pmGMP - PHL
2 stops32h 17mANA
Deal found 6/14$1,549

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 June 16, 2025.
Use the filters below to find and compare flights from Philadelphia to South Korea that are best for you.

Fly from

Philadelphia

Fly to

South Korea

Route

Depart

Return

Price

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 9/13

7:00 am-3:20 pm

1 stop19h 20m

Incheon Intl

Sun 9/21

6:50 pm-9:27 am

1 stop27h 37m

$856

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/8

3:25 pm-4:15 pm

1 stop35h 50m

Incheon Intl

Wed 9/24

6:00 pm-9:38 pm

1 stop16h 38m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 10/14

9:00 pm-3:30 pm

1 stop29h 30m

Incheon Intl

Tue 10/28

6:50 pm-12:57 am

1 stop19h 07m

$867

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 9/1

9:15 pm-9:50 pm

2 stops35h 35m

Seoul Gimpo Intl

Fri 9/12

7:20 pm-2:47 pm

2 stops32h 27m

$875

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 8/16

3:20 pm-4:05 pm

2 stops59h 45m

Incheon Intl

Mon 8/25

10:35 am-10:07 pm

2 stops24h 32m

$899

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 11/4

12:40 pm-5:40 am

3 stops27h 00m

Incheon Intl

Tue 11/18

12:45 pm-9:21 pm

2 stops22h 36m

$912

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Sat 8/16

9:15 pm-10:45 am

2 stops24h 30m

Seoul Gimpo Intl

Mon 8/25

7:55 am-2:50 pm

2 stops19h 55m

$1,008

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 10/20

10:20 am-10:05 pm

2 stops46h 45m

Incheon Intl

Mon 11/3

12:50 am-5:22 pm

2 stops30h 32m

$1,197

PhiladelphiaBusan

PHL - PUS

PHLPUS

Philadelphia

Wed 7/30

7:30 am-8:45 pm

2 stops24h 15m

Busan Gimhae

Wed 8/6

7:35 am-10:29 pm

2 stops27h 54m

$1,271

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Tue 9/9

1:03 pm-11:05 am

2 stops33h 02m

Seoul Gimpo Intl

Tue 9/16

7:55 pm-9:31 pm

2 stops38h 36m

$1,559

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 20 results
1
2

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, February is the cheapest month in which you can book a flight from Philadelphia to South Korea (average of $1,000). Flying from Philadelphia to South Korea in December is currently the most expensive (average of $1,635). 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 June 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to South Korea as you normally would.

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

Temperature in South Korea by month

Plan your trip to South Korea by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Korea, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 June 16, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and ANA 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
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
1,090 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.
Japan Airlines
8.3
Very good
1,494 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.
ANA
8.3
Very good
886 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8.0
Very good
7,963 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $444. However, be on the lookout for offers from Japan Airlines and Air Canada, 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, February is the cheapest month in which you can book a flight from Philadelphia to South Korea (average of $1,000). Flying from Philadelphia to South Korea in December is currently the most expensive (average of $1,635). 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.

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Alternative routes for Philadelphia to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$1,178FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,093FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$871Average$1,386FlexibilityNo cancel feeOn-time71%
DeltaCheapest$872Average$1,325FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,076Average$1,705FlexibilityNo cancel feeOn-time81%

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