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Incheon Intl

$446+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap 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 July 26, 2026.

This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 8/66:15 am
PHL
-
ICN
1 stop18h 55m
Delta
Thu 8/207:20 pm
ICN
-
PHL
1 stop23h 45m
Delta
Deal found 7/24$1,095
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:26 pm
PHL
-
ICN
1 stop36h 04m
Multiple Airlines
Wed 9/27:15 pm
ICN
-
PHL
2 stops23h 24m
Multiple Airlines
Deal found 7/25$1,097
This Kissandfly.com deal was found by Cheapflights users on 7/24. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:15 am
PHL
-
ICN
1 stop19h 55m
Multiple Airlines
Thu 8/207:20 pm
ICN
-
PHL
1 stop23h 45m
Multiple Airlines
Deal found 7/24$1,100
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 8/1312:10 pm
PHL
-
ICN
1 stop26h 50m
Delta
Mon 8/314:25 pm
ICN
-
PHL
1 stop18h 12m
Delta
Deal found 7/24$1,104
This Delta deal was found by Cheapflights users on 7/25. 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 8/319:40 am
PHL
-
ICN
1 stop17h 45m
Delta
Wed 9/304:25 pm
ICN
-
PHL
1 stop21h 15m
Delta
Deal found 7/25$1,105
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am
PHL
-
ICN
1 stop21h 45m
American Airlines
Wed 9/25:50 pm
ICN
-
PHL
1 stop18h 01m
American Airlines
Deal found 7/25$1,107
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/217:02 am
PHL
-
ICN
1 stop21h 28m
Multiple Airlines
Fri 8/287:15 pm
ICN
-
PHL
2 stops23h 24m
Multiple Airlines
Deal found 7/24$1,126
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/227:02 am
PHL
-
ICN
1 stop21h 28m
Multiple Airlines
Sat 8/296:00 pm
ICN
-
PHL
2 stops24h 39m
Multiple Airlines
Deal found 7/22$1,138
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/297:02 am
PHL
-
ICN
1 stop21h 28m
Multiple Airlines
Sat 9/266:00 pm
ICN
-
PHL
2 stops24h 36m
Multiple Airlines
Deal found 7/21$1,149
This Delta deal was found by Cheapflights users on 7/24. 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 8/89:35 am
PHL
-
ICN
1 stop17h 50m
Delta
Tue 9/16:50 pm
ICN
-
PHL
1 stop17h 52m
Delta
Deal found 7/24$1,154

Find 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 July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,095
(Delta)

One-way from

$446
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,565
Provider with most accurate pricing for Philadelphia-Incheon Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Incheon Intl flights.
Search Deals
From Philadelphia to Incheon Intl
Search Deals
One-way flight from Philadelphia to Incheon Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 26, 2026.
Use the filters below to find and compare flights from Philadelphia to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 8/13

5:45 am-4:50 pm

2 stops22h 05m

Incheon Intl

Mon 8/31

7:00 pm-6:05 am

2 stops24h 05m

$1,109

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 8/20

6:15 am-2:10 pm

1 stop18h 55m

Incheon Intl

Mon 9/7

7:00 pm-6:05 am

2 stops24h 05m

$1,109

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/24

12:10 pm-4:00 am

1 stop26h 50m

Incheon Intl

Sun 8/30

4:25 pm-9:37 pm

1 stop18h 12m

$1,154

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 8/8

5:25 pm-4:00 am

2 stops21h 35m

Incheon Intl

Tue 9/1

7:40 pm-8:48 am

2 stops26h 08m

$1,159
Quickest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 8/28

9:40 am-4:25 pm

1 stop17h 45m

Incheon Intl

Fri 9/4

7:20 pm-6:05 am

1 stop23h 45m

$1,205

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 8/22

1:49 pm-4:00 am

1 stop25h 11m

Incheon Intl

Sat 8/29

7:40 pm-11:56 pm

1 stop17h 16m

$1,205
Cheapest one-way

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 8/15

1:32 pm-6:45 pm

2 stops40h 13m

$446
Quickest one-way

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/31

10:05 am-4:25 pm

1 stop17h 20m

$526

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/3

6:19 pm-4:20 am

1 stop21h 01m

$537

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 8/31

7:00 am-3:45 pm

1 stop19h 45m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Philadelphia to Incheon Intl

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 Incheon Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Justfly.comPrice 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-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Incheon Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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-Incheon Intl Airport 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 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?

The best time to book flights from Philadelphia to Incheon Intl Airport is 56 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, January is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $845). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,743). 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.

How much does it cost to fly round-trip from Philadelphia to Incheon Intl Airport?

Airfare is below average for this route at the moment.

Philadelphia to Incheon Intl Airport flights typically cost between $1,171 and $1,423 in August.
The cheapest round-trip price found within the last 5 days was $1,095 on Delta (Aug 6-Aug 20).

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 July 26, 2026.
See what other customers who have flown with Korean Air,Delta, andUnited 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
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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
7.8
Good
8,487 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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.
United Airlines
7.4
Good
10,040 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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.
American Airlines
7.1
Good
11,844 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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.
Air Canada
7.1
Good
11,387 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Comfort

8.3

Entertainment

8.2

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 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 7 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 18h 55m. 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 $784. Other airlines that can offer you cheap pricing are American Airlines, from $845, and Alaska Airlines, from $845. These flights start at 32% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Incheon Intl Airport one-way?

    $339 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $418 and $524, respectively.

  • 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, January is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $845). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,743). 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
Seongnam
Suwon

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Alternative routes for Philadelphia to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Incheon Intl flights
Newark to Incheon Intl flights
Dulles Intl to Incheon Intl flights
Reagan-National to Incheon Intl flights
Harrisburg to Incheon Intl flights

Top 7 airlines flying from Philadelphia to Incheon Intl

Discover the top 7 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 July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$784Average$1,158FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$845Average$966FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$845Average$866FlexibilityNo cancel feeOn-time75%
DeltaCheapest$845Average$986FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$850Average$1,216FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$915Average$1,118FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,129Average$1,204FlexibilityNo cancel feeOn-time81%

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