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Incheon Intl

$434+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ICN
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Incheon Intl are usually found in April or March, booked 40 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap 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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$951
(Kiwi.com)

One-way from

$434
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,301
Provider with most accurate pricing for Philadelphia-Incheon Intl flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Incheon Intl flights.
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From Philadelphia to Incheon Intl
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One-way flight from Philadelphia to Incheon Intl
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Highest demand for flights based on searches. 8% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Wed 5/287:10 amPHL - ICN
2 stops24h 20mMultiple Airlines
Wed 6/410:05 pmICN - PHL
1 stop21h 25mMultiple Airlines
Deal found 4/30$951
This Air Canada deal was found by Cheapflights users on 4/30. 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.
Mon 9/83:25 pmPHL - ICN
1 stop35h 50mAir Canada
Wed 9/246:00 pmICN - PHL
1 stop33h 38mAir Canada
Deal found 4/30$1,003
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 8/206:15 pmPHL - ICN
1 stop20h 45mDelta
Tue 8/266:50 pmICN - PHL
1 stop18h 37mDelta
Deal found 4/30$1,132
This United Airlines deal was found by Cheapflights users on 4/30. 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 7/810:10 amPHL - ICN
2 stops29h 10mUnited Airlines
Mon 7/1411:30 amICN - PHL
3 stops26h 00mUnited Airlines
Deal found 4/30$1,247
This WestJet deal was found by Cheapflights users on 4/30. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/16:00 amPHL - ICN
2 stops47h 45mWestJet
Fri 6/208:45 pmICN - PHL
2 stops39h 09mWestJet
Deal found 4/30$1,265
This Etihad Airways deal was found by Cheapflights users on 4/30. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:20 amPHL - ICN
2 stops35h 25mEtihad Airways
Wed 10/81:35 amICN - PHL
2 stops30h 07mEtihad Airways
Deal found 4/30$1,315
This Trip.com deal was found by Cheapflights users on 4/30. 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.
Tue 5/206:00 amPHL - ICN
1 stop22h 25mKorean Air
Tue 6/109:30 amICN - PHL
1 stop20h 19mKorean Air
Deal found 4/30$1,355

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 May 1, 2025.
Use the filters below to find and compare flights from Philadelphia to Incheon Intl Airport that are best for you.

Fly from

Philadelphia

Fly to

Incheon Intl

Route

Depart

Return

Price

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 5/28

7:10 am-8:30 pm

2 stops24h 20m

Incheon Intl

Wed 6/4

10:05 pm-6:30 am

1 stop21h 25m

$951

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/8

3:25 pm-4:15 pm

1 stop35h 50m

Incheon Intl

Wed 9/24

6:00 pm-2:38 pm

1 stop33h 38m

$1,003

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 8/20

6:15 pm-4:00 am

1 stop20h 45m

Incheon Intl

Tue 8/26

6:50 pm-12:27 am

1 stop18h 37m

$1,132

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 7/8

10:10 am-4:20 am

2 stops29h 10m

Incheon Intl

Mon 7/14

11:30 am-12:30 am

3 stops26h 00m

$1,247

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 6/1

6:00 am-6:45 pm

2 stops47h 45m

Incheon Intl

Fri 6/20

8:45 pm-10:54 pm

2 stops39h 09m

$1,265

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 9/26

10:20 am-10:45 am

2 stops35h 25m

Incheon Intl

Wed 10/8

1:35 am-6:42 pm

2 stops30h 07m

$1,315

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 5/20

6:00 am-5:25 pm

1 stop22h 25m

Incheon Intl

Tue 6/10

9:30 am-4:49 pm

1 stop20h 19m

$1,355

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 9/7

5:30 am-6:45 pm

3 stops48h 15m

$434

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 9/11

3:25 pm-4:05 pm

2 stops35h 40m

$507

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Thu 9/4

7:20 pm-2:10 pm

1 stop29h 50m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
1
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Philadelphia-Incheon Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Incheon Intl. Price data was last updated on April 25, 2025.

The best time to book flights from Philadelphia to Incheon Intl Airport is 40 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, February is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $1,001). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 PHL to ICN?

Find hourly flight availability from Philadelphia to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

When flying from Philadelphia to Incheon Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 46% versus a flight at noon.

Rainfall in Incheon Intl by month

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

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

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

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 May 1, 2025.
Peruse reviews from past customers who have flown with Korean Air, Delta and Cathay Pacific from Philadelphia to Seoul 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
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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
1,069 reviews
Korean Air
8.4
Very good
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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
8.0
Very good
7,934 reviews
Korean Air
8.4
Very good
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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.
Cathay Pacific
7.5
Good
855 reviews
Korean Air
8.4
Very good
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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.
Etihad Airways
7.4
Good
1,203 reviews
Korean Air
8.4
Very good
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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
8,696 reviews
Korean Air
8.4
Very good
1,069 reviews

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

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 5 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • 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 $1,003. Other airlines that can offer you cheap pricing are Delta, from $1,132, and United Airlines, from $1,247. These flights start at 11% 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?

    $507 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $580 and $677, 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, February is the cheapest month in which you can book a flight from Philadelphia to Incheon Intl Airport (average of $1,001). Flying from Philadelphia to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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.

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Top 5 airlines flying from Philadelphia to Incheon Intl

Discover the top 5 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$560Average$1,251FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$795Average$1,099FlexibilityNo cancel feeOn-time67%
DeltaCheapest$875Average$1,192FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$903Average$1,339FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,076Average$1,497FlexibilityNo cancel feeOn-time81%

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