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$483+ Cheap flights from Philadelphia (PHL) to Seoul (SEL)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Seoul are usually found in March or November, booked 68 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from Philadelphia to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Seoul (SEL). 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 July 3, 2025.

Round-trip from

$827
(Delta)

One-way from

$483
(KAYAK)

Popular in

December

Cheapest in

March

Average price

$1,265
From Philadelphia to Seoul (SEL)
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One-way flight from Philadelphia to Seoul (SEL)
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Highest demand for flights based on searches. 6% potential increase in price ($84 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 July 2025
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Find flight deals from Philadelphia to Seoul

Cheapest flights from Philadelphia to Seoul
Explore the most affordable flight options available from Philadelphia to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Delta deal was found by Cheapflights users on 7/3. 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 9/12:35 pmPHL - ICN
1 stop24h 25mDelta
Fri 9/1210:15 amICN - PHL
1 stop22h 06mDelta
Deal found 7/3$827
This Air Canada deal was found by Cheapflights users on 7/2. 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.
Wed 10/13:25 pmPHL - ICN
1 stop35h 50mAir Canada
Thu 10/167:05 pmICN - PHL
1 stop16h 24mAir Canada
Deal found 7/2$910
This Ovago deal was found by Cheapflights users on 7/2. 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.
Mon 9/89:15 pmPHL - GMP
2 stops24h 30mJapan Airlines
Wed 9/247:55 amGMP - PHL
2 stops21h 32mJapan Airlines
Deal found 7/2$911
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:07 pmPHL - ICN
2 stops37h 28mMultiple Airlines
Sat 8/3012:45 pmICN - PHL
1 stop31h 16mMultiple Airlines
Deal found 7/3$913
This American Airlines deal was found by Cheapflights users on 7/2. 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 8/267:40 pmPHL - ICN
2 stops30h 50mAmerican Airlines
Fri 8/295:25 pmICN - PHL
1 stop20h 32mAmerican Airlines
Deal found 7/2$927
This Japan Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/209:15 pmPHL - GMP
2 stops24h 30mMultiple Airlines
Sat 8/307:55 amGMP - PHL
2 stops19h 54mMultiple Airlines
Deal found 7/1$946
This United Airlines deal was found by Cheapflights users on 7/3. 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 8/198:15 amPHL - ICN
2 stops31h 05mUnited Airlines
Mon 9/14:50 pmICN - PHL
1 stop25h 31mUnited Airlines
Deal found 7/3$958
This Cheapflightsfares deal was found by Cheapflights users on 7/2. 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.
Sat 9/131:03 pmPHL - GMP
2 stops33h 02mANA
Sun 9/217:55 pmGMP - PHL
2 stops38h 36mANA
Deal found 7/2$1,617

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia to Seoul 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 July 3, 2025.
Use the filters below to find and compare flights from Philadelphia to Seoul that are best for you.

Fly from

Philadelphia

Fly to

Seoul

Route

Depart

Return

Price

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/1

2:35 pm-4:00 am

1 stop24h 25m

Incheon Intl

Fri 9/12

10:15 am-7:21 pm

1 stop22h 06m

$827

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 10/1

3:25 pm-4:15 pm

1 stop35h 50m

Incheon Intl

Thu 10/16

7:05 pm-10:29 pm

1 stop16h 24m

$910

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 9/8

9:15 pm-10:45 am

2 stops24h 30m

Seoul Gimpo Intl

Wed 9/24

7:55 am-4:27 pm

2 stops21h 32m

$911

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/18

7:07 pm-9:35 pm

2 stops37h 28m

Incheon Intl

Sat 8/30

12:45 pm-7:01 am

1 stop31h 16m

$913

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 8/26

7:40 pm-3:30 pm

2 stops30h 50m

Incheon Intl

Fri 8/29

5:25 pm-12:57 am

1 stop20h 32m

$927

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Wed 8/20

9:15 pm-10:45 am

2 stops24h 30m

Seoul Gimpo Intl

Sat 8/30

7:55 am-2:49 pm

2 stops19h 54m

$946

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 8/19

8:15 am-4:20 am

2 stops31h 05m

Incheon Intl

Mon 9/1

4:50 pm-5:21 am

1 stop25h 31m

$958

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Sat 9/13

1:03 pm-11:05 am

2 stops33h 02m

Seoul Gimpo Intl

Sun 9/21

7:55 pm-9:31 pm

2 stops38h 36m

$1,617

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Fri 7/11

9:15 pm-10:45 am

2 stops24h 30m

$483

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 9/11

2:40 pm-4:00 am

1 stop24h 20m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 20 results
1
2

Best time to book a flight from Philadelphia to Seoul

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

How far ahead should I book a flight from Philadelphia to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Seoul. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Seoul, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Seoul (average of $998). Flying from Philadelphia to Seoul 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 SEL?

Find hourly flight availability from Philadelphia to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from Philadelphia to Seoul in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated July 3, 2025.
See what other customers who have flown with ANA, Korean Air, and Japan Airlines from Philadelphia to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very good
893 reviews
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Korean Air
8.4
Very good
1,101 reviews
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Japan Airlines
8.3
Very good
1,505 reviews
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Alaska Airlines
8.0
Very good
10,000 reviews
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very good
7,982 reviews
ANA
8.4
Very good
893 reviews

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.5

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Seoul. 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 Seoul?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Seoul. On average, Philadelphia has 0 outbound flights to Seoul per day from 5 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

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

    Currently priced at $827, Delta will fly you from Philadelphia to Seoul and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Japan Airlines - these airlines can fly you to your destination from $910 and $911, respectively. Users have found that Delta is 27% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $483 on Japan Airlines. Other airlines that offer cheap prices include Delta from $485 and United Airlines from $549 one-way.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Seoul (average of $998). Flying from Philadelphia to Seoul 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.

See more FAQs

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Top 5 airlines flying from Philadelphia to Seoul

Discover the top 5 airlines that operate flights from Philadelphia to Seoul. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$1,178FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,093FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$871Average$1,326FlexibilityNo cancel feeOn-time71%
DeltaCheapest$872Average$1,186FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,076Average$1,520FlexibilityNo cancel feeOn-time81%

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