South Korea

$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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Jan 27 — Feb 31
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Cheap 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 December 28, 2025.

This Delta deal was found by Cheapflights users on 12/25. 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 12/266:00 amPHL - ICN
1 stop20h 50mDelta
Thu 1/227:25 pmICN - PHL
1 stop17h 25mDelta
Deal found 12/25$846
This Delta deal was found by Cheapflights users on 12/25. 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 12/276:00 amPHL - ICN
1 stop20h 50mDelta
Sat 1/247:30 pmICN - PHL
2 stops27h 20mDelta
Deal found 12/25$850
This Delta deal was found by Cheapflights users on 12/25. 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 12/296:05 amPHL - ICN
2 stops20h 25mDelta
Sat 1/248:05 pmICN - PHL
2 stops29h 38mDelta
Deal found 12/25$995
This Delta deal was found by Cheapflights users on 12/25. 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 12/286:05 amPHL - ICN
1 stop19h 25mDelta
Sat 1/247:30 pmICN - PHL
1 stop17h 55mDelta
Deal found 12/25$1,075
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/266:25 pmPHL - ICN
1 stop21h 15mUnited Airlines
Sat 1/2412:45 pmICN - PHL
2 stops22h 51mUnited Airlines
Deal found 12/25$1,107
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/266:34 pmPHL - ICN
2 stops31h 41mUnited Airlines
Wed 1/2112:45 pmICN - PHL
1 stop23h 07mUnited Airlines
Deal found 12/25$1,164
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/285:00 pmPHL - ICN
2 stops33h 15mUnited Airlines
Sun 1/2512:45 pmICN - PHL
2 stops22h 51mUnited Airlines
Deal found 12/25$1,179
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/312:50 pmPHL - ICN
2 stops24h 50mUnited Airlines
Wed 1/76:00 pmICN - PHL
2 stops36h 36mUnited Airlines
Deal found 12/25$1,180
This United Airlines deal was found by Cheapflights users on 12/25. 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.
Tue 12/306:17 amPHL - ICN
1 stop33h 23mUnited Airlines
Wed 1/76:00 pmICN - PHL
2 stops36h 36mUnited Airlines
Deal found 12/25$1,188
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/266:25 pmPHL - ICN
1 stop21h 15mUnited Airlines
Thu 1/2212:45 pmICN - PHL
2 stops24h 14mUnited Airlines
Deal found 12/25$1,233
This Air Canada deal was found by Cheapflights users on 12/25. 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.
Sun 12/283:30 pmPHL - ICN
2 stops36h 55mAir Canada
Tue 1/206:55 pmICN - PHL
2 stops57h 52mAir Canada
Deal found 12/25$1,246
This Delta deal was found by Cheapflights users on 12/26. 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 12/296:00 amPHL - PUS
2 stops36h 10mDelta
Wed 1/287:55 amPUS - PHL
2 stops30h 26mDelta
Deal found 12/26$1,274

Find 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$804
(Air Canada)

One-way from

$433
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$1,838
Provider with most accurate pricing for Philadelphia-Seoul (SEL) flight deals.
Provider most trusted by Cheapflights users for Philadelphia-Seoul (SEL) flights.
From Philadelphia to South Korea
One-way flight from Philadelphia to South Korea
Highest demand for flights based on searches. 15% potential increase in price ($209 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 28, 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

Fri 1/23

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Fri 1/30

6:00 pm-9:52 pm

1 stop17h 52m

$838

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 1/23

12:16 pm-5:45 am

1 stop27h 29m

Incheon Intl

Fri 1/30

9:35 am-11:43 am

1 stop16h 08m

$839

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 1/27

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Sun 3/1

6:00 pm-7:15 am

1 stop27h 15m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 1/16

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Sat 2/28

12:45 pm-9:33 pm

1 stop22h 48m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 1/16

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Fri 2/27

6:00 pm-7:15 am

1 stop27h 15m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 1/17

12:27 pm-5:40 am

2 stops27h 13m

Incheon Intl

Wed 2/4

12:45 pm-9:52 pm

1 stop23h 07m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 1/17

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Thu 3/5

6:00 pm-9:31 pm

1 stop17h 31m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 2/2

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Fri 2/6

6:00 pm-9:52 pm

1 stop17h 52m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 1/16

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Thu 3/5

6:00 pm-9:31 pm

1 stop17h 31m

$846

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 2/10

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Tue 2/17

12:45 pm-7:11 pm

1 stop20h 26m

$846

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 49 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 $262). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $567). 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 December 28, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Philadelphia to South Korea by exploring options for tickets in the afternoon.

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 March 30, 2025.

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. Wednesday 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 December 28, 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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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.

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.5

Comfort

8.3

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 27h 29m. United Airlines provides one of the quickest options available for as low as $839. 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 Frontier, with whom users have recently found tickets for as low as $72. However, be on the lookout for offers from Spirit Airlines and Delta, 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?

  • 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 $262). Flying from Philadelphia to South Korea in June is currently the most expensive (average of $567). 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

See prices for flight routes from nearby airports that may be better suited for you.

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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$560Average$1,290FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$794Average$1,104FlexibilityNo cancel feeOn-time67%
DeltaCheapest$847Average$1,263FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$866Average$1,280FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,076Average$1,585FlexibilityNo cancel feeOn-time81%

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