$421 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 12/23. 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
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$493
Overall average: $807
Hawaiian Airlines
Fri 12/26Sat 1/10
ICN - PHL • 1 stop
Cheapest one-way
$421
Typical prices: $480-$509
United Airlines
Tue 12/23
ICN - PHL • 1 stop
When to travel
October
Cheapest • 24% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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, Dec 26 - Sat, Jan 10
Hawaiian Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Hawaiian Airlines Logo
7:06 pm - 6:35 pmPHL-ICN
33h 29m1 stop
$493Hawaiian Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
12:45 pm - 2:31 pmICN-PHL
39h 46m2 stops
United Airlines Logo
8:35 am - 4:15 pmPHL-ICN
41h 40m1 stop
$525United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
12:45 pm - 2:31 pmICN-PHL
39h 46m3 stops
United Airlines Logo
5:00 pm - 4:15 pmPHL-ICN
33h 15m2 stops
$526United Airlines
Find Deal
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:50 pm - 2:27 pmICN-PHL
33h 37m1 stop
American Airlines Logo
6:45 pm - 4:45 pmPHL-ICN
32h 00m1 stop
$585American Airlines
Find Deal
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:50 pm - 2:27 pmICN-PHL
33h 37m1 stop
American Airlines Logo
9:30 pm - 4:45 pmPHL-ICN
29h 15m2 stops
$586American Airlines
Find Deal
Fri, Dec 26 - Sat, Jan 10
Delta Logo
7:40 pm - 5:50 amICN-PHL
24h 10m1 stop
Delta Logo
5:17 pm - 4:30 pmPHL-ICN
33h 13m2 stops
$623Delta
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Fri, Dec 26 - Sat, Jan 10
Delta Logo
7:30 pm - 11:55 pmICN-PHL
18h 25m1 stop
Delta Logo
5:17 pm - 4:30 pmPHL-ICN
33h 13m2 stops
$629Delta
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Wed, Jan 21 - Sat, Feb 14
Multiple Airlines Logo
12:40 pm - 8:16 pmICN-PHL
21h 36m1 stop
Multiple Airlines Logo
8:35 am - 5:45 amPHL-ICN
31h 10m1 stop
$687Multiple Airlines
Find Deal
Wed, Jan 21 - Sat, Feb 14
Multiple Airlines Logo
12:40 pm - 8:16 pmICN-PHL
21h 36m1 stop
Multiple Airlines Logo
6:20 pm - 5:45 amPHL-ICN
21h 25m1 stop
$689Multiple Airlines
Find Deal
Wed, Nov 19 - Wed, Dec 17
Korean Air Logo
9:10 am - 12:40 pmICN-PHL
17h 30m1 stop
Korean Air Logo
6:18 am - 3:30 pmPHL-ICN
19h 12m1 stop
$1,416Korean Air
Find Deal
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 March, where tickets cost $709 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 $1,012 respectively. For return trips, the best month to travel is October with an average price of $689.

Good to know

Low seasonMarch
Cheapest flight$421
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 9% 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 $315. On the other hand, the most expensive day to fly is Monday, where prices are $1,207 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.

  • What is the cheapest time of day to fly to Philadelphia?

    The cheapest time of day to fly to Philadelphia is generally in the evening, when flights cost $916 on average. The most expensive time of day to fly to Philadelphia is generally at night, which is peak travel time and where the average cost of a ticket is $1,846.

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

    Each week there are around 3,624 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 airlines 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.
8.4
Korean AirOverall score based on 1160 reviews
8.2Entertainment
8.5Boarding
8.7Crew
8.1Food
8.3Comfort
Airline reviews

It’s great, long flight and arrive safe at destination

10.0 ExcellentAye, Oct 2025ICN - MSP
Read more Korean Air reviews

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

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
West Chester
Essington
Elkton
Pottstown
Willow Grove
Kennett Square
Somers Point
Voorhees
Middletown
Wyomissing
Glen Mills
Phoenixville
Bird in Hand
Blackwood
Millville
Strasburg

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia