HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$429+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Incheon Intl to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 August 20, 2025.

Round-trip from

$502
(Mytrip)

One-way from

$429
(Mytrip)

Popular in

August

Cheapest in

March

Average price

$1,112
From Incheon Intl to Philadelphia
Search Deals
One-way flight from Incheon Intl to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 20, 2025.

This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:00 pmICN - PHL
1 stop33h 38mAir Canada
Wed 9/243:25 pmPHL - ICN
1 stop35h 50mAir Canada
Deal found 8/18$502
This Hawaiian Airlines deal was found by Cheapflights users on 8/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:35 pmICN - PHL
1 stop23h 07mHawaiian Airlines
Sun 11/167:02 amPHL - ICN
1 stop21h 33mHawaiian Airlines
Deal found 8/18$514
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/178:35 pmICN - PHL
1 stop22h 05mAlaska Airlines
Sun 10/267:02 amPHL - ICN
1 stop22h 33mAlaska Airlines
Deal found 8/18$523
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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.
Mon 11/108:35 pmICN - PHL
1 stop35h 37mAlaska Airlines
Thu 11/207:02 amPHL - ICN
1 stop21h 33mAlaska Airlines
Deal found 8/19$531
This United Airlines deal was found by Cheapflights users on 8/20. 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 11/66:00 pmICN - PHL
1 stop25h 18mUnited Airlines
Tue 11/116:25 amPHL - ICN
1 stop33h 15mUnited Airlines
Deal found 8/20$532
This United Airlines deal was found by Cheapflights users on 8/18. 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 11/116:00 pmICN - PHL
2 stops30h 24mUnited Airlines
Tue 11/185:07 pmPHL - ICN
2 stops22h 33mUnited Airlines
Deal found 8/18$534
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/128:35 pmICN - PHL
1 stop22h 05mAlaska Airlines
Sat 10/187:00 amPHL - ICN
1 stop22h 35mAlaska Airlines
Deal found 8/20$552
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 10/174:50 pmICN - PHL
1 stop25h 36mUnited Airlines
Sun 10/266:25 amPHL - ICN
1 stop33h 15mUnited Airlines
Deal found 8/20$568

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 August 20, 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

Wed 9/17

6:00 pm-2:38 pm

1 stop33h 38m

Philadelphia

Wed 9/24

3:25 pm-4:15 pm

1 stop35h 50m

$502

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 11/9

8:35 pm-5:42 am

1 stop23h 07m

Philadelphia

Sun 11/16

7:02 am-6:35 pm

1 stop21h 33m

$514

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 11/9

8:35 pm-5:42 am

1 stop23h 07m

Philadelphia

Sun 11/16

7:02 am-6:35 pm

1 stop21h 33m

$523

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 11/7

8:35 pm-5:42 am

1 stop23h 07m

Philadelphia

Sat 11/15

7:02 am-6:35 pm

1 stop21h 33m

$523

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 10/17

8:35 pm-5:40 am

1 stop22h 05m

Philadelphia

Sun 10/26

7:02 am-6:35 pm

1 stop22h 33m

$523

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 11/10

8:35 pm-6:12 pm

1 stop35h 37m

Philadelphia

Thu 11/20

7:02 am-6:35 pm

1 stop21h 33m

$531

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 11/16

8:35 pm-6:12 pm

1 stop35h 37m

Philadelphia

Fri 11/21

7:10 am-6:35 pm

1 stop21h 25m

$531

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-2:22 pm

3 stops39h 37m

Philadelphia

Sun 2/8

4:56 pm-4:15 pm

2 stops33h 19m

$532

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 9/19

6:00 pm-2:38 pm

1 stop33h 38m

$429

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 11/3

6:55 pm-9:41 am

2 stops28h 46m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 18 results
1
2

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 August 20, 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.

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

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 August 20, 2025.
Peruse reviews from past customers who have flown with Korean Air, Delta, and United Airlines 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
1,131 reviews

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
7,982 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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!!
United Airlines
7.4
Good
8,928 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
1,131 reviews

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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 4 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 $502, Air Canada can have you in Philadelphia from Incheon Intl Airport in 33h 38m. Airlines will cover a distance of 6915 mi.

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

    United Airlines, at $659, was found to be the cheapest airline from Incheon Intl Airport to Philadelphia.Alternate airlines to your destination round-trip include Delta and Korean Air. Users have found that United Airlines is 27% 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
Cherry Hill
Reading
Millville
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Ocean City
Chester
Exton
Springfield
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Incheon Intl to Philadelphia

Discover the top 4 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$659Average$727FlexibilityNo cancel feeOn-time69%
DeltaCheapest$695Average$911FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$782Average$1,086FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$811Average$937FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.