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$433+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Dec 30 — Jan 61
Tue 12/30
Tue 1/6
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 November 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$424
(Expedia)

Popular in

December

Cheapest in

January

Average price

$981
Provider with most accurate pricing for Philadelphia-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Seoul (SEL) flights.
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From Philadelphia to South Korea
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 30, 2025.

This Air Canada deal was found by Cheapflights users on 11/28. 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 12/14:35 pmPHL - ICN
2 stops33h 25mAir Canada
Wed 1/215:55 pmICN - PHL
2 stops34h 52mAir Canada
Deal found 11/28$784
This American Airlines deal was found by Cheapflights users on 11/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:09 pmPHL - PUS
2 stops32h 26mMultiple Airlines
Sun 12/1412:00 pmPUS - PHL
2 stops24h 51mMultiple Airlines
Deal found 11/29$845
This Delta deal was found by Cheapflights users on 11/28. 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 12/14:58 pmPHL - ICN
1 stop22h 47mDelta
Wed 1/217:30 pmICN - PHL
1 stop18h 26mDelta
Deal found 11/28$846
This United Airlines deal was found by Cheapflights users on 11/28. 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 12/31:15 pmPHL - ICN
3 stops26h 25mUnited Airlines
Wed 12/1012:45 pmICN - PHL
2 stops22h 25mUnited Airlines
Deal found 11/28$870
This Orbitz deal was found by Cheapflights users on 11/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:31 amPHL - GMP
2 stops25h 34mJapan Airlines
Wed 1/217:40 pmGMP - PHL
2 stops38h 45mJapan Airlines
Deal found 11/28$896
This Expedia deal was found by Cheapflights users on 11/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:30 amPHL - GMP
2 stops25h 35mJapan Airlines
Wed 12/107:40 pmGMP - PHL
2 stops56h 57mJapan Airlines
Deal found 11/28$908
This United Airlines deal was found by Cheapflights users on 11/28. 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 12/56:15 amPHL - ICN
1 stop20h 00mUnited Airlines
Mon 12/1512:45 pmICN - PHL
1 stop20h 56mUnited Airlines
Deal found 11/28$916
This Expedia deal was found by Cheapflights users on 11/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:30 amPHL - GMP
2 stops25h 35mJapan Airlines
Fri 12/512:05 pmGMP - PHL
2 stops39h 10mJapan Airlines
Deal found 11/29$956
This American Airlines deal was found by Cheapflights users on 11/28. 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 12/95:00 amPHL - ICN
1 stop21h 45mAmerican Airlines
Tue 1/207:15 pmICN - PHL
1 stop27h 48mAmerican Airlines
Deal found 11/28$1,047
This Delta deal was found by Cheapflights users on 11/28. 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 12/76:18 amPHL - ICN
1 stop19h 12mDelta
Sat 1/176:00 pmICN - PHL
1 stop20h 21mDelta
Deal found 11/28$1,095
This Delta deal was found by Cheapflights users on 11/28. 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 12/66:00 amPHL - ICN
2 stops20h 30mDelta
Sun 1/188:05 pmICN - PHL
2 stops29h 38mDelta
Deal found 11/28$1,096
This Delta deal was found by Cheapflights users on 11/28. 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 12/76:18 amPHL - ICN
2 stops20h 12mDelta
Fri 1/237:25 pmICN - PHL
1 stop17h 25mDelta
Deal found 11/28$1,099

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 November 30, 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

Sun 1/11

3:30 pm-5:10 pm

2 stops35h 40m

Incheon Intl

Mon 1/26

6:55 pm-2:47 pm

2 stops33h 52m

$801

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 2/14

5:59 pm-5:45 am

1 stop21h 46m

Incheon Intl

Fri 2/27

9:35 am-7:25 pm

1 stop23h 50m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 1/12

6:57 pm-3:30 pm

1 stop30h 33m

Incheon Intl

Fri 1/23

6:00 pm-10:50 pm

1 stop18h 50m

$851

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 3/17

6:20 pm-4:40 am

1 stop21h 20m

Incheon Intl

Tue 3/31

4:50 pm-7:45 am

1 stop27h 55m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 3/19

7:00 am-6:35 pm

1 stop22h 35m

Incheon Intl

Mon 3/23

8:35 pm-5:23 am

1 stop21h 48m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 4/29

10:21 am-4:00 am

1 stop28h 39m

Incheon Intl

Sun 5/3

6:50 pm-12:25 am

1 stop18h 35m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 3/25

5:51 pm-5:00 am

1 stop22h 09m

Incheon Intl

Wed 4/8

6:40 pm-11:59 pm

1 stop18h 19m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 5/3

1:30 pm-4:00 am

1 stop25h 30m

Incheon Intl

Wed 5/13

6:40 pm-11:40 pm

1 stop18h 00m

$866

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 1/12

6:21 am-10:05 pm

2 stops25h 44m

Seoul Gimpo Intl

Mon 1/19

7:40 pm-12:55 pm

2 stops31h 15m

$898

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Tue 1/13

6:15 am-10:05 pm

2 stops25h 50m

Seoul Gimpo Intl

Tue 1/20

7:40 pm-12:55 pm

2 stops31h 15m

$899

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 42 results
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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 $258). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $572). 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 November 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% on flights from Philadelphia to South Korea by exploring options for tickets at noon.

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 December 16, 2024.

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. Saturday 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 November 30, 2025.
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
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
1,174 reviews
Korean Air
8.4
Very good
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
8,011 reviews
Korean Air
8.4
Very good
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
9,057 reviews
Korean Air
8.4
Very good
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
11,043 reviews
Korean Air
8.4
Very good
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
10,484 reviews
Korean Air
8.4
Very good
1,174 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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 21h 46m. Air Canada provides one of the quickest options available for as low as $846. 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 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 $258). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $572). 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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Alternative routes for Philadelphia to South Korea

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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 November 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$533Average$1,268FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,104FlexibilityNo cancel feeOn-time67%
DeltaCheapest$865Average$1,457FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$871Average$1,303FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,060Average$1,604FlexibilityNo cancel feeOn-time81%

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