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$436+ Cheap flights from Seoul (SEL) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — PHL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Seoul to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$738
(Delta)

One-way from

$436
(Mytrip)

Popular in

August

Cheapest in

October

Average price

$1,023
From Seoul (SEL) to Philadelphia
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One-way flight from Seoul (SEL) to Philadelphia
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Highest demand for flights based on searches. 26% potential increase in price ($410 potential increase over avg. RT price).
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Cheapest flight prices on average. 15% potential price decrease ($153 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 Seoul to Philadelphia

Cheapest flights from Seoul to Philadelphia
Explore the most affordable flight options available from Seoul to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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.
mar. 7/87:40 pmICN - PHL
1 stop23h 10mDelta
mar. 7/156:00 amPHL - ICN
2 stops22h 20mDelta
Deal found 6/12$738
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/205:45 pmICN - PHL
2 stops33h 53mAir Canada
jue. 10/239:20 amPHL - ICN
2 stops41h 45mAir Canada
Deal found 6/11$772
This United Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 8/194:50 pmICN - PHL
2 stops32h 11mUnited Airlines
mar. 9/26:30 amPHL - ICN
1 stop19h 30mUnited Airlines
Deal found 6/11$808
This Korean Air deal was found by Cheapflights users on 6/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/194:25 pmICN - PHL
1 stop18h 55mKorean Air
mar. 9/25:25 amPHL - ICN
1 stop19h 45mKorean Air
Deal found 6/11$831
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3010:35 amICN - PHL
2 stops24h 54mMultiple Airlines
mar. 10/74:50 pmPHL - ICN
2 stops58h 25mMultiple Airlines
Deal found 6/11$836
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/68:35 pmICN - PHL
1 stop23h 26mHawaiian Airlines
jue. 12/117:25 amPHL - ICN
1 stop21h 10mHawaiian Airlines
Deal found 6/10$988
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/1512:40 pmGMP - PHL
2 stops22h 49mMultiple Airlines
mar. 7/2210:40 amPHL - GMP
2 stops22h 40mMultiple Airlines
Deal found 6/11$1,018
This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/177:55 pmGMP - PHL
2 stops31h 14mANA
vie. 7/116:05 amPHL - GMP
2 stops27h 15mANA
Deal found 6/9$1,239
This American Airlines deal was found by Cheapflights users on 6/10. 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.
dom. 10/55:25 pmICN - PHL
1 stop19h 00mAmerican Airlines
dom. 10/129:00 pmPHL - ICN
1 stop29h 30mAmerican Airlines
Deal found 6/10$1,398
This Japan Airlines deal was found by Cheapflights users on 6/10. 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. 9/167:55 amGMP - PHL
2 stops19h 39mJapan Airlines
mar. 4/149:17 pmPHL - GMP
2 stops24h 28mJapan Airlines
Deal found 6/10$1,507

Cheapflights Fare Finder

Customize your flight search to find flights from Seoul 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 junio 12, 2025.
Use the filters below to find and compare flights from Seoul to Philadelphia that are best for you.

Fly from

Seoul

Fly to

Philadelphia

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

mar. 7/8

7:40 pm-5:50 am

1 stop23h 10m

Philadelphia

mar. 7/15

6:00 am-5:20 pm

1 stop22h 20m

$738

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

lun. 10/20

5:45 pm-2:38 pm

2 stops33h 53m

Philadelphia

jue. 10/23

9:20 am-4:05 pm

2 stops41h 45m

$772

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

mar. 8/19

4:50 pm-12:01 pm

2 stops32h 11m

Philadelphia

mar. 9/2

5:15 pm-4:20 am

2 stops22h 05m

$808

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

mar. 8/19

4:25 pm-10:20 pm

1 stop18h 55m

Philadelphia

mar. 9/2

5:25 am-2:10 pm

1 stop19h 45m

$831

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

jue. 7/3

6:50 pm-12:59 am

1 stop19h 09m

Philadelphia

lun. 7/21

5:30 am-2:10 pm

1 stop19h 40m

$834

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

sáb. 12/6

8:35 pm-6:01 am

1 stop23h 26m

Philadelphia

jue. 12/11

7:25 am-6:35 pm

1 stop21h 10m

$988

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

mar. 7/15

12:40 pm-10:29 pm

2 stops22h 49m

Philadelphia

mar. 7/22

10:40 am-10:20 pm

2 stops22h 40m

$1,018

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

lun. 10/20

12:40 pm-2:16 pm

2 stops38h 36m

Philadelphia

jue. 10/23

6:30 am-10:20 pm

2 stops26h 50m

$1,280

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

dom. 10/5

5:25 pm-11:25 pm

1 stop19h 00m

Philadelphia

dom. 10/12

9:00 pm-3:30 pm

1 stop29h 30m

$1,398

SeoulPhiladelphia

GMP - PHL

GMPPHL

Seoul Gimpo Intl

mar. 9/16

7:55 am-2:34 pm

2 stops19h 39m

Philadelphia

mar. 4/14

9:17 pm-10:45 am

2 stops24h 28m

$1,507

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 24 results
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Best time to book a flight from Seoul to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Seoul 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 Seoul to Philadelphia

What is the cheapest month to book a flight from Seoul to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Seoul to Philadelphia (average of $236). Flying from Seoul to Philadelphia in March is currently the most expensive (average of $295). 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 SEL to PHL?

Find hourly flight availability from Seoul 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 junio 12, 2025.

One of the essential ways to save on airfare from Seoul to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 51% on airfare.

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 junio 12, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines from Seoul to Philadelphia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,490 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very good
882 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,946 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Seoul 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 Seoul?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from Seoul to Philadelphia. 5 airlines have flights to Philadelphia from Seoul on a regular basis. Booking flights from Seoul to Philadelphia should not be difficult; the airport handles an average of 0 inbound flights from Seoul per day.

  • What are the cheapest airlines flying from Seoul to Philadelphia round-trip?

    Delta, at $738, was found to be the cheapest airline from Seoul to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and United Airlines. You may be able to fly from Seoul to Philadelphia for 34% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $501. Users have also found prices from $519 and $526 on United Airlines and Air Canada, respectively.

  • Can I find deals for flights from Seoul to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Seoul to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Philadelphia.

  • Can I find deals for business class flights from Seoul to Philadelphia?

    Yes. Cheapflights offers flight deals from Seoul 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 Seoul to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Seoul to Philadelphia (average of $236). Flying from Seoul to Philadelphia in March is currently the most expensive (average of $295). 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 Seoul?

Book flights to Seoul if you plan to visit one of these locations
Vineland
Wildwood
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King of Prussia
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Ocean City
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Willow Grove
Glen Mills
Springfield

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Top 5 airlines flying from Seoul to Philadelphia

Discover the top 5 airlines that operate flights from Seoul 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$552Average$807FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$659Average$728FlexibilityNo cancel feeOn-time69%
DeltaCheapest$749Average$918FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$782Average$1,086FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$811Average$1,112FlexibilityNo cancel feeOn-time67%

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