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Incheon Intl

$391+ Cheap flights from Philadelphia (PHL) to Incheon Intl (ICN)

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Incheon Intl are usually found in March or January, booked 31 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Philadelphia to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Incheon Intl (ICN). 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 September 17, 2025.

Round-trip from

$826
(Delta)

One-way from

$391
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$950
From Philadelphia to Incheon Intl
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One-way flight from Philadelphia to Incheon Intl
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Highest demand for flights based on searches. 7% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Philadelphia to Incheon Intl

Cheapest flights from Philadelphia to Incheon Intl
Explore the most affordable flight options available from Philadelphia to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:15 pmPHL - ICN
1 stop21h 45mDelta
Mon 11/176:00 pmICN - PHL
1 stop18h 50mDelta
Deal found 9/15$826
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:00 amPHL - ICN
2 stops21h 30mDelta
Thu 10/237:40 pmICN - PHL
1 stop23h 10mDelta
Deal found 9/15$831
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:50 pmPHL - ICN
1 stop32h 55mMultiple Airlines
Mon 10/278:35 pmICN - PHL
2 stops23h 27mMultiple Airlines
Deal found 9/15$832
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:50 pmPHL - ICN
1 stop32h 55mMultiple Airlines
Mon 10/278:35 pmICN - PHL
2 stops23h 27mMultiple Airlines
Deal found 9/15$835
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:50 pmPHL - ICN
2 stops34h 25mAir Canada
Mon 11/246:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 9/15$838
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:20 amPHL - ICN
2 stops41h 45mAir Canada
Mon 11/176:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 9/15$842
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:50 pmPHL - ICN
2 stops34h 15mAir Canada
Tue 9/305:45 pmICN - PHL
2 stops35h 04mAir Canada
Deal found 9/15$845
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/273:25 pmPHL - ICN
2 stops35h 40mAir Canada
Sun 10/196:00 pmICN - PHL
2 stops34h 49mAir Canada
Deal found 9/15$848
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:35 amPHL - ICN
1 stop17h 55mAir Canada
Sun 11/168:10 pmICN - PHL
2 stops32h 37mAir Canada
Deal found 9/15$855
This Air Canada deal was found by Cheapflights users on 9/16. 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.
Mon 9/293:25 pmPHL - ICN
1 stop35h 50mAir Canada
Mon 10/67:05 pmICN - PHL
1 stop16h 24mAir Canada
Deal found 9/16$858
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/219:20 amPHL - ICN
2 stops41h 45mAir Canada
Mon 11/246:55 pmICN - PHL
2 stops33h 52mAir Canada
Deal found 9/16$862
This Air Canada deal was found by Cheapflights users on 9/17. 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 9/294:50 pmPHL - ICN
2 stops34h 25mAir Canada
Mon 10/137:05 pmICN - PHL
2 stops39h 33mAir Canada
Deal found 9/17$865

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Incheon Intl 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 September 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Incheon Intl Airport that are best for you.

Fly from

Philadelphia

Fly to

Incheon Intl

Route

Depart

Return

Price

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/30

6:00 am-5:20 pm

1 stop22h 20m

Incheon Intl

Mon 10/20

6:50 pm-12:52 am

1 stop19h 02m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 10/24

7:05 am-3:20 pm

1 stop19h 15m

Incheon Intl

Mon 11/3

6:00 pm-12:52 am

1 stop20h 52m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 10/20

5:30 am-2:10 pm

1 stop19h 40m

Incheon Intl

Mon 11/3

7:25 pm-12:52 am

1 stop19h 27m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 10/21

9:46 am-4:25 pm

1 stop17h 39m

Incheon Intl

Tue 11/4

7:25 pm-12:52 am

1 stop19h 27m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 9/27

5:15 pm-4:00 am

1 stop21h 45m

Incheon Intl

Mon 11/17

6:00 pm-10:50 pm

1 stop18h 50m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 9/27

6:00 am-4:25 pm

1 stop21h 25m

Incheon Intl

Mon 10/20

7:40 pm-5:50 am

1 stop23h 10m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 10/25

7:05 am-4:20 pm

1 stop20h 15m

Incheon Intl

Wed 11/5

9:35 am-4:35 pm

1 stop21h 00m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/29

6:00 am-5:20 pm

1 stop22h 20m

Incheon Intl

Sat 10/25

6:50 pm-12:52 am

1 stop19h 02m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 10/31

6:00 am-3:50 pm

1 stop20h 50m

Incheon Intl

Fri 11/7

7:40 pm-5:50 am

1 stop24h 10m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 10/13

5:50 pm-3:45 pm

1 stop32h 55m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 results
1
2

Best time to book a flight from Philadelphia to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl Airport

How far ahead should I book a flight from Philadelphia to Incheon Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Incheon Intl. Price data was last updated on September 12, 2025.

The best time to book flights from Philadelphia to Incheon Intl Airport is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $989). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,621). 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 ICN?

Find hourly flight availability from Philadelphia to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Philadelphia to Incheon Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 46% versus a flight at noon.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated September 17, 2025.
See what other customers who have flown with Korean Air, Delta, and United Airlines from Philadelphia to Incheon Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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
1,140 reviews
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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
7,961 reviews
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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
8,926 reviews
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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
10,000 reviews
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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
10,000 reviews
Korean Air
8.4
Very good
1,140 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

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 Incheon Intl. 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 Incheon Intl?

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

  • How long is the flight from Philadelphia to Incheon Intl Airport?

    Departing from Philadelphia to Incheon Intl Airport will take you 22h 20m. There are 6915 mi between Philadelphia and Incheon Intl Airport.

  • What are the cheapest airlines flying from Philadelphia to Incheon Intl Airport round-trip?

    Cheapflights users have booked flights from Philadelphia to Incheon Intl Airport round-trip from $601. Other airlines that can offer you cheap pricing are Air Canada, from $795, and Delta, from $866. These flights start at 43% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Philadelphia to Incheon Intl?

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Incheon Intl 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 Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $989). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,621). 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 Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

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Top 5 airlines flying from Philadelphia to Incheon Intl

Discover the top 5 airlines that operate flights from Philadelphia to Incheon Intl. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$601Average$1,087FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,092FlexibilityNo cancel feeOn-time67%
DeltaCheapest$866Average$1,189FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$871Average$1,315FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,060Average$1,306FlexibilityNo cancel feeOn-time81%

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