$305 Find Cheap Flights from South Korea to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Philadelphia, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$471
Overall average: $731
Air Canada
Fri 2/20Mon 3/2
ICN - PHL • 2 stops
Cheapest one-way
$305
Typical prices: $476-$573
Air Canada
Mon 4/20
ICN - PHL • 2 stops
When to travel
February
Cheapest • 41% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from South Korea to Philadelphia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from South Korea to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from South Korea to Philadelphia

Fri, Feb 20 - Mon, Mar 2
Air Canada Logo
5:55 pm - 2:47 pm
ICN
-
PHL
34h 52m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
59h 40m
2 stops
$471Air Canada
Fri, Feb 20 - Mon, Mar 2
Air Canada Logo
5:55 pm - 2:47 pm
ICN
-
PHL
34h 52m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
35h 40m
2 stops
$484Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:05 pm
PHL
-
ICN
41h 00m
2 stops
$488Air Canada
Tue, Feb 24 - Tue, Mar 3
Air Canada Logo
6:55 pm - 10:46 pm
ICN
-
PHL
41h 51m
2 stops
Air Canada Logo
3:30 pm - 5:10 pm
PHL
-
ICN
35h 40m
2 stops
$489Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:25 pm
PHL
-
ICN
17h 20m
1 stop
$499Air Canada
Wed, Jun 3 - Tue, Jun 9
Air Canada Logo
5:45 pm - 9:33 pm
ICN
-
PHL
40h 48m
2 stops
Air Canada Logo
10:05 am - 4:25 pm
PHL
-
ICN
17h 20m
1 stop
$502Air Canada
Fri, Feb 20 - Mon, Mar 2
ANA Logo
7:45 am - 9:09 pm
GMP
-
PHL
27h 24m
2 stops
ANA Logo
12:55 pm - 11:20 am
PHL
-
GMP
32h 25m
2 stops
$1,280ANA
Fri, Feb 20 - Mon, Mar 2
Multiple Airlines Logo
8:00 am - 2:37 pm
GMP
-
PHL
20h 37m
2 stops
Multiple Airlines Logo
8:15 am - 10:05 pm
PHL
-
GMP
23h 50m
2 stops
$1,605Multiple Airlines
Sat, Feb 28 - Sat, Mar 7
Japan Airlines Logo
7:40 pm - 2:37 pm
GMP
-
PHL
32h 57m
2 stops
Japan Airlines Logo
7:14 am - 10:55 am
PHL
-
GMP
37h 41m
2 stops
$1,676Japan Airlines
Sun, Mar 15 - Sun, Mar 22
Japan Airlines Logo
7:40 pm - 9:54 pm
GMP
-
PHL
39h 14m
2 stops
Japan Airlines Logo
7:00 am - 10:05 pm
PHL
-
GMP
26h 05m
2 stops
$1,735Japan Airlines
Booking Insights

KAYAK's insights & trends for flights to Philadelphia

Get data-powered insights and trends for flights to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Philadelphia is November, where tickets cost $626 on average for one-way flights. On the other hand, the most expensive months are August and January, where the average cost of tickets from South Korea is $1,112 and $1,092 respectively. For return trips, the best month to travel is February with an average price of $618.

Good to know

Low seasonJanuary
Cheapest flight$305
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Seoul Incheon Airport to Philadelphia

FAQs - booking Philadelphia flights

  • How far is Philadelphia Airport from central Philadelphia?

    Central Philadelphia is 7 miles away from Philadelphia Airport.

  • What is the name of Philadelphia’s airport?

    There is only 1 airport in Philadelphia, called Philadelphia Airport (PHL). It can also be referred to as Philadelphia or Philadelphia Intl.

  • What is the cheapest day to fly to Philadelphia?

    Based on KAYAK data, the cheapest day to fly to Philadelphia is Thursday where tickets can be as cheap as $313. On the other hand, the most expensive day to fly is Monday, where prices are $1,392 on average.

  • How does KAYAK find such low prices on flights to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Philadelphia are there each week?

    Each week there are around 3,424 direct flights from within South Korea to Philadelphia. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Philadelphia

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Philadelphia flight deals.

Reviews of the top airline flying from South Korea to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to Philadelphia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8125 reviews
7.9Comfort
7.2Food
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

10.0 ExcellentDr. Simon, Jan 2026
LAX - JFK
Read more Delta reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood Crest
Newark
North Wildwood
Vineland
Essington
West Chester
Elkton
Pottstown
Willow Grove
Kennett Square
Voorhees
Somers Point
Middletown
Wyomissing
Glen Mills
Phoenixville
Bird in Hand
Blackwood
Strasburg
Millville

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia