$626 Find Cheap Flights from South Korea to Philadelphia - Compare and Save

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 8/20. 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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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

Wed, Dec 9 - Tue, Jan 26
Air Canada Logo
6:55 pm - 2:44 pm
ICN
-
PHL
33h 49m
2 stops
Air Canada Logo
3:20 pm - 5:10 pm
PHL
-
ICN
35h 50m
2 stops
$1,116Air Canada
Thu, Sep 24 - Mon, Sep 28
Air Canada Logo
5:45 pm - 10:09 am
ICN
-
PHL
29h 24m
2 stops
Air Canada Logo
3:25 pm - 4:05 pm
PHL
-
ICN
35h 40m
2 stops
$1,119Air Canada
Thu, Oct 1 - Tue, Dec 29
Air Canada Logo
5:45 pm - 10:09 am
ICN
-
PHL
29h 24m
2 stops
Air Canada Logo
3:20 pm - 5:10 pm
PHL
-
ICN
35h 50m
2 stops
$1,126Air Canada
Thu, Sep 24 - Mon, Sep 28
Delta Logo
7:00 pm - 6:05 am
ICN
-
PHL
24h 05m
2 stops
Delta Logo
7:20 am - 3:20 pm
PHL
-
ICN
19h 00m
1 stop
$1,137Delta
Thu, Oct 15 - Mon, Oct 19
Delta Logo
7:20 pm - 5:41 am
ICN
-
PHL
23h 21m
1 stop
Delta Logo
6:15 am - 5:20 pm
PHL
-
ICN
22h 05m
1 stop
$1,149Delta
Thu, Oct 15 - Mon, Oct 19
Korean Air Logo
7:55 am - 2:59 pm
TAE
-
PHL
44h 04m
2 stops
Korean Air Logo
5:30 am - 7:55 pm
PHL
-
TAE
49h 25m
2 stops
$1,355Korean Air
Thu, Oct 15 - Mon, Oct 19
Korean Air Logo
7:55 am - 2:59 pm
TAE
-
PHL
44h 04m
2 stops
Korean Air Logo
5:30 am - 7:55 pm
PHL
-
TAE
49h 25m
2 stops
$1,356Korean Air
Thu, Aug 27 - Mon, Apr 12
ANA Logo
12:40 pm - 9:43 pm
GMP
-
PHL
46h 03m
2 stops
ANA Logo
11:39 am - 6:35 pm
PHL
-
GMP
41h 56m
2 stops
$1,753ANA
Thu, Nov 5 - Mon, Nov 9
Japan Airlines Logo
8:00 am - 2:37 pm
GMP
-
PHL
20h 37m
2 stops
Japan Airlines Logo
6:31 am - 10:05 pm
PHL
-
GMP
25h 34m
2 stops
$1,810Japan Airlines
Fri, Aug 21 - Fri, Aug 28
Japan Airlines Logo
8:00 am - 6:42 pm
GMP
-
PHL
23h 42m
2 stops
Japan Airlines Logo
7:00 am - 9:15 pm
PHL
-
GMP
25h 15m
2 stops
$1,812Japan 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 flight to Philadelphia?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Philadelphia was found on the route from Incheon, at $1,116 return. The most popular connection is from Seoul to Philadelphia and KAYAK users have found round-trip deals for as low as $1,116 in the last 5 days.

Good to know

Low seasonNovember
Cheapest flight$626
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 176% increase in price.
Flight from Seoul Incheon Airport to Philadelphia

FAQs - booking Philadelphia flights

  • What is the cheapest flight to Philadelphia?

    In the last 5 days, the cheapest flight deal to Philadelphia was found on the route from Incheon, at $1,116 return. The most popular connection is from Seoul to Philadelphia and KAYAK users have found round-trip deals for as low as $1,116 in the last 5 days.

  • 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.

  • 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 6,302 direct flights from within South Korea to Philadelphia. The most common day for departures is Sunday, 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.
7.8
DeltaOverall score based on 8453 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.8Comfort
Airline reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

4.0 OkayMichelle, Jun 2026
ATL - PIT
Read more Delta reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

2+hrs delay without any reason provided and a cramped flight

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

My seat was moved closer to the front of the cabin since I had requested wheelchair assistance to the gate.

Carly the flight attendant was extremely helpful and very accommodating to passengers on the flight from what I noticed. Couldn't be more satisfied with the service and assistance from Delta's flight attendant, Thanks again Carly!!

Traveling to a place near Philadelphia?

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

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia