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$492+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEL
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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1. Tell us where you want to go

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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 May 12, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,004
(Air Canada)

One-way from

$492
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,173
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 Seoul (SEL)
Search Deals
One-way flight from Philadelphia to Seoul (SEL)
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Highest demand for flights based on searches. 3% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 12, 2025.

This Air Canada deal was found by Cheapflights users on 5/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/83:25 pmPHL - ICN
1 stop35h 50mAir Canada
Wed 9/246:00 pmICN - PHL
1 stop33h 38mAir Canada
Deal found 5/12$1,004
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/195:15 amPHL - ICN
2 stops26h 15mMultiple Airlines
Tue 6/1012:45 pmICN - PHL
1 stop20h 40mMultiple Airlines
Deal found 5/11$1,013
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 9/237:00 amPHL - ICN
1 stop19h 20mDelta
Mon 10/64:25 pmICN - PHL
1 stop19h 32mDelta
Deal found 5/12$1,132
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:00 amPHL - ICN
1 stop22h 35mAlaska Airlines
Fri 10/318:35 pmICN - PHL
1 stop22h 26mAlaska Airlines
Deal found 5/11$1,161
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 7/103:39 pmPHL - ICN
2 stops23h 41mUnited Airlines
Thu 7/174:50 pmICN - PHL
1 stop25h 36mUnited Airlines
Deal found 5/11$1,233
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:15 pmPHL - GMP
2 stops31h 45mJapan Airlines
Wed 9/37:55 amGMP - PHL
2 stops27h 59mJapan Airlines
Deal found 5/12$1,243
This Japan Airlines deal was found by Cheapflights users on 5/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:05 amPHL - GMP
2 stops25h 15mMultiple Airlines
Tue 11/1812:05 pmGMP - PHL
2 stops21h 22mMultiple Airlines
Deal found 5/11$1,296
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/175:55 amPHL - ICN
1 stop19h 15mKorean Air
Wed 8/206:50 pmICN - PHL
1 stop18h 37mKorean Air
Deal found 5/10$1,305
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:00 amPHL - ICN
1 stop21h 30mAmerican Airlines
Wed 7/305:25 pmICN - PHL
1 stop20h 34mAmerican Airlines
Deal found 5/12$1,377
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:50 pmPHL - GMP
2 stops33h 15mANA
Tue 10/77:55 pmGMP - PHL
2 stops31h 11mANA
Deal found 5/12$1,583

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 May 12, 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 9/8

3:25 pm-4:15 pm

1 stop35h 50m

Incheon Intl

Wed 9/24

6:00 pm-2:38 pm

1 stop33h 38m

$1,004

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 5/25

5:34 pm-3:45 pm

1 stop33h 11m

Incheon Intl

Fri 5/30

10:05 pm-6:30 am

1 stop21h 25m

$1,095

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/23

7:00 am-3:20 pm

1 stop19h 20m

Incheon Intl

Wed 10/8

4:25 pm-12:23 am

1 stop20h 58m

$1,132

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 10/22

7:00 am-6:35 pm

1 stop22h 35m

Incheon Intl

Fri 10/31

8:35 pm-6:01 am

1 stop22h 26m

$1,161

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 7/10

6:28 pm-4:20 am

1 stop20h 52m

Incheon Intl

Thu 7/17

11:30 am-5:26 am

1 stop30h 56m

$1,233

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Sat 8/23

9:15 pm-6:00 pm

2 stops31h 45m

Seoul Gimpo Intl

Wed 9/3

7:55 am-10:54 pm

2 stops27h 59m

$1,243

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Tue 11/4

7:05 am-10:20 pm

2 stops25h 15m

Seoul Gimpo Intl

Tue 11/18

12:05 pm-7:27 pm

2 stops21h 22m

$1,296

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 8/17

5:55 am-2:10 pm

1 stop19h 15m

Incheon Intl

Wed 8/20

6:50 pm-12:27 am

1 stop18h 37m

$1,305

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 7/16

5:00 am-3:30 pm

1 stop21h 30m

Incheon Intl

Wed 7/30

5:25 pm-12:59 am

1 stop20h 34m

$1,377

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Thu 9/25

12:50 pm-11:05 am

2 stops33h 15m

Seoul Gimpo Intl

Tue 10/7

7:55 pm-2:06 pm

2 stops31h 11m

$1,583

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 17 results
1
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Compare providers for flights from Philadelphia to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Seoul in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Seoul flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Philadelphia-Seoul flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Philadelphia-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Seoul flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 May 9, 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 $1,001). 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 May 12, 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.

Rainfall in Seoul by month

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

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

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

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 May 12, 2025.
Read through reviews of airlines operating flights from Philadelphia to Seoul, such as Korean Air, Japan Airlines and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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
1,072 reviews
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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.
Japan Airlines
8.3
Very good
1,472 reviews
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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.
ANA
8.3
Very good
860 reviews
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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
8.0
Very good
7,950 reviews
Korean Air
8.4
Very good
1,072 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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 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 $1,004, Air Canada will fly you from Philadelphia to Seoul and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $1,132 and $1,161, respectively. Users have found that Air Canada is 14% 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 $507 on Air Canada. Other airlines that offer cheap prices include United Airlines from $737 and ANA from $869 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 $1,001). 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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Alternative routes for Philadelphia to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$560Average$1,251FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,100FlexibilityNo cancel feeOn-time67%
DeltaCheapest$875Average$1,193FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$903Average$1,331FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,076Average$1,502FlexibilityNo cancel feeOn-time81%

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