HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Korea

$422+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to South Korea with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$778
(Air Canada)

One-way from

$434
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,056
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. 14% potential increase in price ($193 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($83 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 16, 2025.

This Air Canada deal was found by Cheapflights users on 10/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/103:30 pmPHL - ICN
2 stops35h 40mAir Canada
mar. 11/186:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 10/16$778
This Air Canada deal was found by Cheapflights users on 10/14. 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.
mar. 11/43:30 pmPHL - ICN
2 stops35h 40mAir Canada
mar. 11/186:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 10/14$779
This Air Canada deal was found by Cheapflights users on 10/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/43:30 pmPHL - ICN
2 stops35h 40mAir Canada
mar. 11/256:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 10/16$780
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/263:30 pmPHL - ICN
2 stops35h 40mAir Canada
lun. 12/226:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 10/15$789
This Air Canada deal was found by Cheapflights users on 10/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/34:35 pmPHL - ICN
2 stops34h 35mAir Canada
mar. 11/256:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 10/16$790
This FlightHub deal was found by Cheapflights users on 10/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/234:35 pmPHL - ICN
1 stop35h 50mAir Canada
mar. 12/168:10 pmICN - PHL
1 stop16h 36mAir Canada
Deal found 10/14$802
This Ovago deal was found by Cheapflights users on 10/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:25 amPHL - GMP
2 stops25h 40mJapan Airlines
mar. 11/188:00 amGMP - PHL
2 stops44h 38mJapan Airlines
Deal found 10/16$929
This Expedia deal was found by Cheapflights users on 10/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/306:31 amPHL - GMP
2 stops25h 34mJapan Airlines
dom. 12/77:40 pmGMP - PHL
2 stops31h 35mJapan Airlines
Deal found 10/16$1,070
This American Airlines deal was found by Cheapflights users on 10/16. 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.
mar. 11/48:30 amPHL - GMP
2 stops23h 35mMultiple Airlines
mar. 11/188:00 amGMP - PHL
2 stops20h 38mMultiple Airlines
Deal found 10/16$1,111
This Japan Airlines deal was found by Cheapflights users on 10/15. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/56:00 amPHL - GMP
2 stops26h 05mMultiple Airlines
lun. 12/1512:05 pmGMP - PHL
2 stops22h 00mMultiple Airlines
Deal found 10/15$1,137
This Japan Airlines deal was found by Cheapflights users on 10/16. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/218:54 amPHL - GMP
2 stops23h 56mMultiple Airlines
mar. 11/48:00 amGMP - PHL
2 stops20h 38mMultiple Airlines
Deal found 10/16$1,140
This FlightHub deal was found by Cheapflights users on 10/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:31 amPHL - GMP
2 stops25h 34mJapan Airlines
lun. 12/228:00 amGMP - PHL
2 stops27h 48mJapan Airlines
Deal found 10/14$1,215

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 octubre 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

lun. 4/6

7:20 pm-4:00 am

1 stop19h 40m

Incheon Intl

mié. 4/15

6:40 pm-11:40 pm

1 stop18h 00m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

lun. 11/24

6:14 am-3:30 pm

1 stop19h 16m

Incheon Intl

mar. 12/23

9:35 am-7:40 pm

1 stop24h 05m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

mar. 1/13

7:20 pm-5:45 am

1 stop20h 25m

Incheon Intl

mié. 4/15

6:50 pm-12:25 am

1 stop18h 35m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

mié. 11/26

5:30 am-3:50 pm

1 stop20h 20m

Incheon Intl

dom. 12/21

7:30 pm-11:55 pm

1 stop18h 25m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

lun. 11/24

4:58 pm-5:45 am

1 stop22h 47m

Incheon Intl

dom. 12/21

7:30 pm-11:55 pm

1 stop18h 25m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

lun. 11/24

7:10 am-4:20 pm

1 stop19h 10m

Incheon Intl

vie. 12/12

7:30 pm-11:57 pm

1 stop18h 27m

$867

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

jue. 2/26

7:00 am-4:20 pm

1 stop19h 20m

Incheon Intl

lun. 3/9

8:05 pm-8:46 am

2 stops25h 41m

$871

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

jue. 11/27

12:37 pm-5:45 am

1 stop27h 08m

Incheon Intl

mar. 12/23

8:05 pm-5:49 am

2 stops23h 44m

$871

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

mar. 11/25

6:00 am-5:45 am

2 stops33h 45m

Incheon Intl

jue. 12/18

7:30 pm-11:57 pm

1 stop18h 27m

$871

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

mar. 11/25

5:30 am-3:50 pm

1 stop20h 20m

Incheon Intl

dom. 12/21

8:05 pm-5:49 am

2 stops23h 44m

$871

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 45 results
1
2
3
...
5

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 $288). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $575). 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 octubre 16, 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 octubre 16, 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
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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
1,149 reviews
Korean Air
8.4
Very good
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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
7.9
Good
7,980 reviews
Korean Air
8.4
Very good
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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.
United Airlines
7.4
Good
8,982 reviews
Korean Air
8.4
Very good
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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.
American Airlines
7.2
Good
11,040 reviews
Korean Air
8.4
Very good
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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.
Air Canada
7.1
Good
10,307 reviews
Korean Air
8.4
Very good
1,149 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

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.

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

    A quick flight from Philadelphia to South Korea can take about 19h 40m. Delta provides one of the quickest options available for as low as $866. 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 American Airlines, with whom users have recently found tickets for as low as $439. However, be on the lookout for offers from Delta and Japan Airlines, 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 $288). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $575). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Haneda flights
Newark to Haneda flights
Newark to Narita flights
Newark to New Delhi flights
John F Kennedy Intl to Suvarnabhumi flights
John F Kennedy Intl to Narita flights
John F Kennedy Intl to New Delhi flights
Dulles Intl to Haneda flights
Newark to Mumbai flights
LaGuardia to Haneda flights
LaGuardia to Narita flights
John F Kennedy Intl to Ahmedabad flights
Newark to Suvarnabhumi flights
John F Kennedy Intl to Incheon Intl flights
Dulles Intl to Suvarnabhumi flights
LaGuardia to Suvarnabhumi flights
John F Kennedy Intl to Hong Kong flights
John F Kennedy Intl to Taiwan Taoyuan Intl flights
Newark to Ahmedabad flights
LaGuardia to New Delhi flights
John F Kennedy Intl to Hongqiao Intl flights
John F Kennedy Intl to Manila flights
Dulles Intl to Narita flights
John F Kennedy Intl to Mumbai flights
Newark to Hongqiao Intl flights
John F Kennedy Intl to Hyderabad flights
Newark to Manila flights
Reagan-National to Suvarnabhumi flights
LaGuardia to Mumbai flights
Reagan-National to Narita flights
Reagan-National to Haneda flights
John F Kennedy Intl to Dhaka flights
Newark to Incheon Intl flights
John F Kennedy Intl to Pu Dong flights
Newark to Hyderabad flights
Dulles Intl to Hyderabad flights
LaGuardia to Manila flights
Dulles Intl to New Delhi flights
Newark to Taiwan Taoyuan Intl flights
John F Kennedy Intl to Singapore flights
John F Kennedy Intl to Lahore flights
Dulles Intl to Incheon Intl flights
LaGuardia to Incheon Intl flights
Reagan-National to Hyderabad flights
Dulles Intl to Ho Chi Minh City flights
Newark to Hong Kong flights
LaGuardia to Hongqiao Intl flights
Dulles Intl to Mumbai flights
Newark to Pu Dong flights
Reagan-National to New Delhi flights

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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$560Average$1,123FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,104FlexibilityNo cancel feeOn-time67%
DeltaCheapest$866Average$1,203FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$871Average$1,326FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,060Average$1,605FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.