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$441+ Cheap flights from Incheon Intl (ICN) 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from Incheon Intl to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) 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 septiembre 15, 2025.

Round-trip from

$532
(United Airlines)

One-way from

$441
(Air Canada)

Popular in

August

Cheapest in

March

Average price

$728
From Incheon Intl to Philadelphia
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One-way flight from Incheon Intl to Philadelphia
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Highest demand for flights based on searches. 4% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 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 Incheon Intl to Philadelphia

Cheapest flights from Incheon Intl to Philadelphia
Explore the most affordable flight options available from Incheon Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/185:25 pmICN - PHL
2 stops26h 44mAmerican Airlines
dom. 9/216:44 pmPHL - ICN
1 stop31h 46mAmerican Airlines
Deal found 9/15$524
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1811:30 amICN - PHL
1 stop18h 58mUnited Airlines
dom. 9/216:30 amPHL - ICN
1 stop32h 50mUnited Airlines
Deal found 9/15$595
This Delta deal was found by Cheapflights users on 9/14. 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.
lun. 12/158:05 pmICN - PHL
2 stops23h 45mDelta
lun. 1/1911:45 amPHL - ICN
1 stop37h 45mDelta
Deal found 9/14$635
This Delta deal was found by Cheapflights users on 9/12. 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.
lun. 9/157:20 pmICN - PHL
2 stops28h 14mDelta
lun. 11/176:00 amPHL - ICN
1 stop19h 30mDelta
Deal found 9/12$636
This Delta deal was found by Cheapflights users on 9/14. 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.
vie. 12/267:40 pmICN - PHL
1 stop23h 56mDelta
sáb. 1/105:20 pmPHL - ICN
1 stop33h 30mDelta
Deal found 9/14$648
This Delta deal was found by Cheapflights users on 9/12. 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.
lun. 9/157:20 pmICN - PHL
2 stops28h 14mDelta
dom. 11/235:24 pmPHL - ICN
1 stop33h 26mDelta
Deal found 9/12$649
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/1511:30 amICN - PHL
2 stops25h 51mUnited Airlines
mar. 11/185:07 pmPHL - ICN
2 stops22h 33mUnited Airlines
Deal found 9/12$662
This Delta deal was found by Cheapflights users on 9/12. 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.
sáb. 9/136:40 pmICN - PHL
1 stop32h 19mDelta
lun. 11/176:59 pmPHL - ICN
1 stop30h 31mDelta
Deal found 9/12$690
This Delta deal was found by Cheapflights users on 9/12. 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.
sáb. 9/136:40 pmICN - PHL
1 stop28h 54mDelta
dom. 11/236:00 amPHL - ICN
1 stop20h 50mDelta
Deal found 9/12$703
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/159:00 pmICN - PHL
1 stop22h 46mMultiple Airlines
lun. 1/196:35 pmPHL - ICN
1 stop20h 45mMultiple Airlines
Deal found 9/14$711
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/134:50 pmICN - PHL
2 stops29h 43mUnited Airlines
dom. 11/238:00 pmPHL - ICN
2 stops30h 15mUnited Airlines
Deal found 9/12$716

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl 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 septiembre 15, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Philadelphia that are best for you.

Fly from

Incheon Intl

Fly to

Philadelphia

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

vie. 2/20

6:00 pm-10:24 am

2 stops30h 24m

Philadelphia

lun. 3/2

12:55 pm-5:40 am

2 stops26h 45m

$532

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

vie. 1/30

6:00 pm-12:07 pm

2 stops32h 07m

Philadelphia

dom. 2/8

8:35 am-4:15 pm

1 stop41h 40m

$532

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

vie. 2/20

7:30 pm-11:46 pm

1 stop18h 16m

Philadelphia

lun. 3/2

6:30 pm-3:30 pm

1 stop31h 00m

$635

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

vie. 1/30

7:30 pm-11:46 pm

1 stop18h 16m

Philadelphia

dom. 2/8

6:00 am-4:30 pm

2 stops20h 30m

$635

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

vie. 12/26

7:40 pm-5:36 am

1 stop23h 56m

Philadelphia

sáb. 1/10

5:20 pm-4:30 pm

2 stops33h 10m

$635

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

mar. 10/28

7:30 pm-8:41 am

2 stops26h 11m

Philadelphia

mar. 11/4

7:00 pm-3:30 pm

1 stop30h 30m

$636

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

sáb. 10/25

8:45 pm-7:02 am

3 stops47h 17m

$441

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

mié. 10/8

6:00 pm-2:38 pm

1 stop33h 38m

$441

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

dom. 9/21

8:35 pm-12:46 am

3 stops41h 11m

$447

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

lun. 9/22

7:20 pm-5:45 am

2 stops23h 25m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 14 results
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Best time to book a flight from Incheon Intl to Philadelphia

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

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

Currently, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Philadelphia (average of $236). Flying from Incheon Intl Airport 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 ICN to PHL?

Find hourly flight availability from Incheon Intl 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 septiembre 15, 2025.

It’s typically best to fly out from Incheon Intl Airport to Philadelphia in the morning. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 septiembre 15, 2025.
Peruse reviews from past customers who have flown with Korean Air, Delta, and Air Canada from Incheon Intl Airport to Philadelphia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
8.0
Very good
7,954 reviews
Korean Air
8.4
Very good
1,139 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,000 reviews
Korean Air
8.4
Very good
1,139 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl 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 Incheon Intl?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from Incheon Intl to Philadelphia. You should not have trouble finding flights to Philadelphia from Incheon Intl; the airport handles an average of 0 inbound flights from Incheon Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Philadelphia airport from Incheon Intl. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

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

    For as low as $635, United Airlines can have you in Philadelphia from Incheon Intl Airport in 18h 16m. Airlines will cover a distance of 6915 mi. This flight may include one or multiple stops.

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

    Delta, at $695, was found to be the cheapest airline from Incheon Intl Airport to Philadelphia.Alternate airlines to your destination round-trip include Korean Air and Air Canada. Users have found that Delta is 21% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Philadelphia (average of $236). Flying from Incheon Intl Airport 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Incheon Intl to Philadelphia

Discover the top 3 airlines that operate flights from Incheon Intl 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$695Average$907FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$782Average$1,080FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$811Average$975FlexibilityNo cancel feeOn-time67%

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