$407 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 10/31. 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

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

Fri, Oct 31 - Tue, Nov 18
American Airlines Logo
5:55 pm - 5:37 pmICN-PHL
36h 42m2 stops
American Airlines Logo
7:02 pm - 4:45 pmPHL-ICN
31h 43m2 stops
$492American Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 18
American Airlines Logo
5:55 pm - 9:26 amICN-PHL
28h 31m2 stops
American Airlines Logo
3:36 pm - 4:45 pmPHL-ICN
35h 09m2 stops
$493American Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 21
Hawaiian Airlines Logo
8:35 pm - 6:06 pmICN-PHL
35h 31m1 stop
Hawaiian Airlines Logo
6:35 pm - 6:35 pmPHL-ICN
34h 00m1 stop
$500Hawaiian Airlines
Find Deal
Tue, Dec 23 - Sun, Mar 1
United Airlines Logo
12:45 pm - 7:04 amICN-PHL
32h 19m1 stop
United Airlines Logo
6:20 pm - 4:15 pmPHL-ICN
31h 55m1 stop
$520United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
6:00 pm - 2:31 pmICN-PHL
34h 31m2 stops
United Airlines Logo
8:35 am - 4:15 pmPHL-ICN
41h 40m1 stop
$521United Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 17
Delta Logo
7:30 pm - 10:54 amICN-PHL
28h 24m1 stop
Delta Logo
7:10 am - 4:20 pmPHL-ICN
19h 10m1 stop
$601Delta
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Fri, Oct 31 - Tue, Nov 18
Delta Logo
7:30 pm - 10:54 amICN-PHL
28h 24m1 stop
Delta Logo
6:14 am - 3:30 pmPHL-ICN
19h 16m1 stop
$621Delta
Find Deal
Thu, Dec 25 - Fri, Feb 27
Hawaiian Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Hawaiian Airlines Logo
6:35 pm - 6:35 pmPHL-ICN
34h 00m1 stop
$651Hawaiian Airlines
Find Deal
Thu, Dec 25 - Fri, Feb 27
Alaska Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Alaska Airlines Logo
6:35 pm - 6:35 pmPHL-ICN
34h 00m1 stop
$682Alaska Airlines
Find Deal
Sun, Dec 21 - Fri, Feb 27
Alaska Airlines Logo
8:35 pm - 5:37 amICN-PHL
23h 02m1 stop
Alaska Airlines Logo
6:35 pm - 6:35 pmPHL-ICN
34h 00m1 stop
$821Alaska Airlines
Find Deal

Everything you should know

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
Cheapest round-trip
$492
Overall average: $764
American Airlines
Fri 10/31Tue 11/18
ICN - PHL • 2 stops
Cheapest one-way
$407
Typical prices: $487-$522
American Airlines
Fri 10/31
ICN - PHL • 2 stops
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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!
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$407
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 8% 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 4,296 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 3 airlines serving 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 1149 reviews
8.5Boarding
8.1Food
8.3Comfort
8.7Crew
8.2Entertainment
Airline reviews

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.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

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.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

taking our carryon and forcing us to check it through

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

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

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