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$408+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — PHL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Philadelphia are usually found in March or September, 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$672
(United Airlines)

One-way from

$408
(United Airlines)

Popular in

August

Cheapest in

March

Average price

$709
Provider with most accurate pricing for Incheon Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Incheon Intl-Philadelphia flights.
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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. 15% potential increase in price ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/28. 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.
Wed 4/24:50 pmICN - PHL
2 stops25h 45mUnited Airlines
Tue 4/1510:43 amPHL - ICN
2 stops28h 37mUnited Airlines
Deal found 3/28$672
This Air Canada deal was found by Cheapflights users on 3/28. 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 5/135:45 pmICN - PHL
2 stops29h 30mAir Canada
Tue 5/203:20 pmPHL - ICN
2 stops35h 45mAir Canada
Deal found 3/28$673
This Delta deal was found by Cheapflights users on 3/27. 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.
Fri 4/46:50 pmICN - PHL
1 stop33h 01mDelta
Mon 4/146:55 pmPHL - ICN
1 stop33h 25mDelta
Deal found 3/27$852
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Sun 4/275:25 pmICN - PHL
1 stop29h 05mAmerican Airlines
Sun 5/49:15 pmPHL - ICN
2 stops29h 15mAmerican Airlines
Deal found 3/27$903
This Mytrip deal was found by Cheapflights users on 3/26. 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.
Sun 5/118:40 pmICN - PHL
1 stop22h 50mMultiple Airlines
Sun 5/187:45 amPHL - ICN
1 stop31h 35mMultiple Airlines
Deal found 3/26$950
This Korean Air deal was found by Cheapflights users on 3/28. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/146:40 pmICN - PHL
1 stop18h 10mKorean Air
Sun 4/209:40 amPHL - ICN
1 stop17h 45mKorean Air
Deal found 3/28$1,159
This Qatar Airways deal was found by Cheapflights users on 3/27. 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.
Tue 4/11:20 amICN - PHL
1 stop44h 55mQatar Airways
Tue 4/156:45 pmPHL - ICN
2 stops33h 20mQatar Airways
Deal found 3/27$1,449

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 March 28, 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

Fri 4/11

11:30 am-5:35 am

1 stop31h 05m

Philadelphia

Mon 4/28

4:35 pm-4:20 am

1 stop22h 45m

$672

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 5/13

5:45 pm-10:15 am

2 stops29h 30m

Philadelphia

Tue 5/20

3:20 pm-4:05 pm

2 stops35h 45m

$673

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 4/27

5:25 pm-9:30 am

1 stop29h 05m

Philadelphia

Sun 5/4

9:15 pm-3:30 pm

2 stops29h 15m

$903

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 5/11

8:40 pm-6:30 am

1 stop22h 50m

Philadelphia

Sun 5/18

7:45 am-4:20 am

1 stop31h 35m

$950

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 6/26

4:40 pm-11:58 pm

2 stops20h 18m

Philadelphia

Sat 6/28

6:59 pm-5:20 pm

1 stop33h 21m

$1,039

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 4/14

6:40 pm-11:50 pm

1 stop18h 10m

Philadelphia

Sun 4/20

9:40 am-4:25 pm

1 stop17h 45m

$1,159

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 7/7

1:20 am-7:53 pm

2 stops31h 33m

Philadelphia

Tue 7/15

8:30 pm-5:05 pm

1 stop31h 35m

$1,843

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Wed 4/30

4:45 pm-9:03 am

2 stops29h 18m

Philadelphia

Thu 5/8

5:08 pm-1:55 pm

3 stops55h 47m

$2,246

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 4/7

4:50 pm-2:18 pm

3 stops34h 28m

$408

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 6/7

6:20 pm-5:10 am

2 stops23h 50m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 15 results
1
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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 March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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.

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Philadelphia

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 March 21, 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 March 28, 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 March 28, 2025.
See what other customers who have flown with Korean Air, Delta and China Southern 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
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
7,897 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
7.5
Good
94 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
3,538 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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.
United Airlines
7.4
Good
8,603 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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?

    United Airlines, at $672, was found to be the cheapest airline from Incheon Intl Airport to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and American Airlines. Users have found that United Airlines is 34% 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 ($408), Air Canada ($484), and Delta ($529).

  • 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
Wildwood
Reading
Cherry Hill
Exton
Ocean City
Essington
Chester
Newark
Middletown
Willow Grove
Millville
Ephrata
Camden
Dewey Beach
West Chester
Malvern
Dover

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$552Average$819FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$659Average$731FlexibilityNo cancel feeOn-time69%
DeltaCheapest$845Average$1,156FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$887Average$1,105FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$954Average$1,086FlexibilityNo cancel feeOn-time81%
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