$439 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 3/1. 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
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$501
Overall average: $726
American Airlines
Thu 2/5Mon 2/9
ICN - PHL • 1 stop
Cheapest one-way
$439
Typical prices: $439-$535
Multiple Airlines
Sun 3/1
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

Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
7:15 pm - 11:13 am
ICN
-
PHL
29h 58m1 stop
American Airlines Logo
5:00 am - 4:45 pm
PHL
-
ICN
21h 45m1 stop
$501American Airlines
Fri, Feb 20 - Mon, Mar 2
American Airlines Logo
7:15 pm - 12:54 am
ICN
-
PHL
19h 39m1 stop
American Airlines Logo
6:40 pm - 4:45 pm
PHL
-
ICN
32h 05m1 stop
$507American Airlines
Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
7:15 pm - 9:03 am
ICN
-
PHL
27h 48m1 stop
American Airlines Logo
9:31 pm - 4:45 pm
PHL
-
ICN
29h 14m2 stops
$508American Airlines
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
7:15 pm - 12:54 am
ICN
-
PHL
19h 39m1 stop
American Airlines Logo
5:00 am - 4:45 pm
PHL
-
ICN
21h 45m1 stop
$516American Airlines
Thu, Feb 5 - Sat, Feb 14
Hawaiian Airlines Logo
8:35 pm - 6:03 pm
ICN
-
PHL
35h 28m1 stop
Hawaiian Airlines Logo
6:20 pm - 6:35 pm
PHL
-
ICN
34h 15m1 stop
$532Hawaiian Airlines
Thu, Jan 29 - Wed, Feb 18
Multiple Airlines Logo
8:35 pm - 6:03 pm
ICN
-
PHL
35h 28m1 stop
Multiple Airlines Logo
6:20 pm - 6:35 pm
PHL
-
ICN
34h 15m1 stop
$534Multiple Airlines
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
6:00 pm - 9:52 pm
ICN
-
PHL
17h 52m1 stop
United Airlines Logo
8:35 am - 4:15 pm
PHL
-
ICN
41h 40m1 stop
$550United Airlines
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
8:35 pm - 5:20 pm
ICN
-
PHL
34h 45m1 stop
Multiple Airlines Logo
6:20 pm - 6:35 pm
PHL
-
ICN
34h 15m1 stop
$554Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Korean Air Logo
7:40 am - 1:22 pm
TAE
-
PHL
43h 42m2 stops
Korean Air Logo
5:40 am - 7:45 pm
PHL
-
TAE
24h 05m2 stops
$850Korean Air
Thu, Feb 5 - Mon, Feb 9
Korean Air Logo
7:40 am - 11:56 pm
TAE
-
PHL
30h 16m2 stops
Korean Air Logo
6:15 am - 7:45 pm
PHL
-
TAE
23h 30m2 stops
$1,597Korean Air
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$439
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 2,109 direct flights from within South Korea to Philadelphia. The most common day for departures is Friday, 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 8018 reviews
8.5Crew
7.9Comfort
7.2Food
7.8Entertainment
8.1Boarding
Airline reviews

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

2.0 MediocreAnonymous, Jan 2026
EWR - ATL
Read more Delta reviews

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

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
Willow Grove
Pottstown
Kennett Square
Somers Point
Voorhees
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