HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$403+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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.

The best prices from Incheon Intl to Philadelphia are usually found in September or October, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$629
(American Airlines)

One-way from

$403
(United Airlines)

Popular in

August

Cheapest in

September

Average price

$915
Provider with most accurate pricing for Incheon Intl-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-Philadelphia flights.
Search Deals
From Incheon Intl to Philadelphia
Search Deals
One-way flight from Incheon Intl to Philadelphia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/115:50 pmICN - PHL
2 stops26h 50mAmerican Airlines
Sun 3/169:00 pmPHL - ICN
2 stops29h 55mAmerican Airlines
Deal found 2/19$629
This United Airlines deal was found by Cheapflights users on 2/20. 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 4/1011:30 amICN - PHL
1 stop31h 05mUnited Airlines
Fri 4/189:31 amPHL - ICN
2 stops29h 49mUnited Airlines
Deal found 2/20$659
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/245:45 pmICN - PHL
2 stops58h 02mAir Canada
Sun 4/273:30 pmPHL - ICN
2 stops59h 35mAir Canada
Deal found 2/20$772
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/109:30 amICN - PHL
1 stop20h 24mKorean Air
Mon 4/215:49 pmPHL - ICN
1 stop21h 11mKorean Air
Deal found 2/20$889
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/14:25 pmICN - PHL
1 stop17h 25mDelta
Sat 4/122:45 pmPHL - ICN
1 stop37h 35mDelta
Deal found 2/19$964
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/111:20 pmICN - PHL
3 stops33h 53mMultiple Airlines
Sun 3/164:25 pmPHL - ICN
2 stops58h 00mMultiple Airlines
Deal found 2/19$1,179
This Qatar Airways deal was found by Cheapflights users on 2/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:20 amICN - PHL
1 stop29h 25mQatar Airways
Tue 3/116:10 pmPHL - ICN
2 stops34h 05mQatar Airways
Deal found 2/20$1,429
This China Southern deal was found by Cheapflights users on 2/20. 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 China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/192:50 pmICN - PHL
2 stops29h 39mChina Southern
Thu 4/175:11 pmPHL - ICN
3 stops39h 39mChina Southern
Deal found 2/20$1,950

Find flights from Incheon Intl to Philadelphia within your budget

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 February 20, 2025.

Fly from

Incheon Intl

Fly to

Philadelphia

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 3/11

5:50 pm-11:11 pm

1 stop18h 21m

Philadelphia

Sun 3/16

9:00 pm-3:55 pm

2 stops29h 55m

$629

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 4/10

11:30 am-5:35 am

1 stop31h 05m

Philadelphia

Fri 4/18

9:31 am-4:20 am

2 stops29h 49m

$659

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 4/24

5:45 pm-2:47 pm

2 stops58h 02m

Philadelphia

Sun 4/27

3:30 pm-4:05 pm

2 stops59h 35m

$772

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 4/10

9:30 am-4:54 pm

1 stop20h 24m

Philadelphia

Mon 4/21

5:49 pm-4:00 am

1 stop21h 11m

$889

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 4/1

4:25 pm-8:50 pm

1 stop17h 25m

Philadelphia

Sat 4/12

2:45 pm-5:20 pm

1 stop37h 35m

$964

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 4/10

5:45 pm-5:52 am

3 stops25h 07m

Philadelphia

Fri 4/18

3:22 pm-4:05 pm

3 stops35h 43m

$1,086

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Wed 3/5

12:20 am-3:45 pm

1 stop29h 25m

Philadelphia

Tue 3/11

6:10 pm-5:15 pm

2 stops34h 05m

$1,429

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Wed 3/19

2:50 pm-7:29 am

2 stops29h 39m

Philadelphia

Thu 4/17

5:11 pm-9:50 pm

3 stops39h 39m

$1,950

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 6/26

10:10 am-11:31 pm

2 stops26h 21m

Philadelphia

Fri 7/11

9:10 am-8:00 pm

2 stops21h 50m

$3,460

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 2/28

6:00 pm-2:15 pm

3 stops34h 15m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 16 results
1
2

Compare providers for flights from Incheon Intl to Philadelphia

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 Incheon Intl to Philadelphia in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice 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 Incheon Intl Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-Philadelphia 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 Incheon Intl Airport-Philadelphia 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 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.

Travel insights for flights from Incheon Intl to Philadelphia

Get recent, data-driven insights about flights from Incheon Intl to Philadelphia including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to Philadelphia. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to Philadelphia, you should look to book at least 64 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 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 February 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.

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 February 20, 2025.
See what other customers who have flown with Korean Air, Japan Airlines and Delta from Seoul to Philadelphia have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very good
1,037 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Delta
8.0
Very good
8,220 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

China Southern
7.6
Good
87 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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 5 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.

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

    American Airlines, at $629, was found to be the cheapest airline from Incheon Intl Airport to Philadelphia.Alternate airlines to your destination round-trip include United Airlines and Air Canada. Users have found that American Airlines is 40% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Incheon Intl Airport to Philadelphia are United Airlines ($403), Air Canada ($473), and WestJet ($832).

  • 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 Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
King of Prussia
Vineland
Pottstown
Reading
Wildwood
Exton
Ocean City
Cherry Hill
Essington
Chester
Willow Grove
Newark
Middletown
Millville
Wyomissing
Ephrata
Dewey Beach
West Chester
Malvern
Dover

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 5 airlines flying from Incheon Intl to Philadelphia

Discover the top 5 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$552Average$826FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$659Average$731FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$861Average$1,102FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$954Average$1,086FlexibilityNo cancel feeOn-time81%
DeltaCheapest$970Average$1,136FlexibilityNo cancel feeOn-timeN/A
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.