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Cheap flights from Seoul to Philadelphia from $438

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Philadelphia departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seoul to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:50 pm - 2:27 pmICN-PHL
33h 37m1 stop
American Airlines Logo
3:35 pm - 4:45 pmPHL-ICN
35h 10m2 stops
$491American Airlines
Find Deal
Fri, Feb 20 - Mon, Mar 2
American Airlines Logo
6:50 pm - 9:35 amICN-PHL
28h 45m1 stop
American Airlines Logo
3:35 pm - 4:45 pmPHL-ICN
35h 10m2 stops
$492American Airlines
Find Deal
Fri, Feb 20 - Mon, Mar 2
American Airlines Logo
5:55 pm - 11:55 amICN-PHL
31h 00m2 stops
American Airlines Logo
9:05 pm - 3:55 pmPHL-ICN
29h 50m2 stops
$501American Airlines
Find Deal
Tue, Mar 17 - Sun, Mar 22
United Airlines Logo
12:45 pm - 9:52 pmICN-PHL
23h 07m1 stop
United Airlines Logo
5:00 pm - 4:15 pmPHL-ICN
33h 15m2 stops
$519United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
6:00 pm - 9:52 pmICN-PHL
17h 52m1 stop
United Airlines Logo
8:35 am - 4:15 pmPHL-ICN
41h 40m1 stop
$520United Airlines
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Fri, Jan 30 - Sun, Feb 8
Delta Logo
7:40 pm - 5:50 amICN-PHL
24h 10m1 stop
Delta Logo
5:17 pm - 4:30 pmPHL-ICN
33h 13m2 stops
$620Delta
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Fri, Dec 26 - Sat, Jan 10
Delta Logo
7:40 pm - 5:50 amICN-PHL
24h 10m1 stop
Delta Logo
11:29 am - 3:30 pmPHL-ICN
38h 01m1 stop
$623Delta
Find Deal
Fri, Dec 26 - Sat, Jan 10
Hawaiian Airlines Logo
8:35 pm - 5:31 pmICN-PHL
33h 56m1 stop
Hawaiian Airlines Logo
7:00 am - 6:35 pmPHL-ICN
22h 35m1 stop
$641Hawaiian Airlines
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Sun, Mar 15 - Wed, Mar 25
Korean Air Logo
8:45 am - 2:15 pmICN-PHL
18h 30m1 stop
Korean Air Logo
7:33 pm - 3:55 pmPHL-ICN
31h 22m1 stop
$715Korean Air
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Thu, Apr 9 - Mon, May 18
Korean Air Logo
6:00 pm - 5:11 pmICN-PHL
36h 11m1 stop
Korean Air Logo
6:10 pm - 3:50 pmPHL-ICN
32h 40m1 stop
$718Korean Air
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Wed, Mar 18 - Sat, Mar 21

American Airlines flights from Seoul to Philadelphia

Our best American Airlines deals on Seoul to Philadelphia flight tickets
American Airlines
Feb 20
ICN6:50 pmIncheon Intl
33h 37m
1 stop
PHL2:27 pmPhiladelphia
Mar 2
PHL3:35 pmPhiladelphia
35h 10m
2 stops
ICN4:45 pmIncheon Intl
$491
Find similar
American Airlines
Feb 20
ICN6:50 pmIncheon Intl
28h 45m
1 stop
PHL9:35 amPhiladelphia
Mar 2
PHL3:35 pmPhiladelphia
35h 10m
2 stops
ICN4:45 pmIncheon Intl
$492
Find similar
American Airlines
Oct 31
ICN5:55 pmIncheon Intl
36h 42m
2 stops
PHL5:37 pmPhiladelphia
Nov 17
PHL5:20 pmPhiladelphia
33h 25m
1 stop
ICN4:45 pmIncheon Intl
$494
Find similar

United Airlines flights from Seoul to Philadelphia

Our best United Airlines deals on Seoul to Philadelphia flight tickets
United Airlines
Jan 30
ICN12:45 pmIncheon Intl
23h 07m
1 stop
PHL9:52 pmPhiladelphia
Feb 8
PHL5:00 pmPhiladelphia
33h 15m
2 stops
ICN4:15 pmIncheon Intl
$519
Find similar
United Airlines
Jan 30
ICN6:00 pmIncheon Intl
17h 52m
1 stop
PHL9:52 pmPhiladelphia
Feb 8
PHL8:35 amPhiladelphia
41h 40m
1 stop
ICN4:15 pmIncheon Intl
$520
Find similar
United Airlines
Mar 16
ICN5:00 pmIncheon Intl
30h 27m
2 stops
PHL10:27 amPhiladelphia
Mar 25
PHL6:16 pmPhiladelphia
31h 59m
1 stop
ICN3:15 pmIncheon Intl
$522
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Seoul to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 2/20

6:50 pm-2:27 pm

1 stop33h 37m

Philadelphia

Mon 3/2

3:35 pm-4:45 pm

2 stops35h 10m

$491

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 2/20

6:50 pm-9:35 am

1 stop28h 45m

Philadelphia

Mon 3/2

3:35 pm-4:45 pm

2 stops35h 10m

$492

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 3/17

5:55 pm-11:55 am

2 stops31h 00m

Philadelphia

Sun 3/22

9:05 pm-3:55 pm

2 stops29h 50m

$501

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

12:45 pm-9:52 pm

1 stop23h 07m

Philadelphia

Sun 2/8

5:00 pm-4:15 pm

2 stops33h 15m

$519

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 1/30

6:00 pm-9:52 pm

1 stop17h 52m

Philadelphia

Sun 2/8

8:35 am-4:15 pm

1 stop41h 40m

$520

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

7:40 pm-5:50 am

1 stop24h 10m

Philadelphia

Sat 1/10

5:17 pm-4:30 pm

2 stops33h 13m

$620

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 12/26

7:40 pm-5:50 am

1 stop24h 10m

Philadelphia

Sat 1/10

11:29 am-3:30 pm

1 stop38h 01m

$623

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 3/15

8:35 pm-5:31 pm

1 stop33h 56m

Philadelphia

Wed 3/25

7:00 am-6:35 pm

1 stop22h 35m

$641

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 4/9

8:45 am-2:15 pm

1 stop18h 30m

Philadelphia

Mon 5/18

7:33 pm-3:55 pm

1 stop31h 22m

$715

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Wed 3/18

6:00 pm-5:11 pm

1 stop36h 11m

Philadelphia

Sat 3/21

6:10 pm-3:50 pm

1 stop32h 40m

$718

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Seoul to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seoul and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Seoul is in October. Flight prices, which tend to average around $689, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Philadelphia, with average flight prices from Seoul averaging around $709.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Seoul to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $919. On the other hand, Saturday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,072.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Seoul to Philadelphia in the afternoon for as low as $916. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the evening when prices are around $1,846.

Can stopping save me money on Seoul to Philadelphia flights?

You could potentially save up to 6% on your flight if you consider stops on a Seoul to Philadelphia flight.

How have Seoul to Philadelphia flight prices changed over time?

As of October 2025, prices for Seoul to Philadelphia flights are approximately 43% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seoul to Philadelphia (SEL to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Philadelphia

Direct flights

None
There are no direct flights from Seoul to Philadelphia. There are no popular flight routes from Seoul to Philadelphia.
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  • How far is Seoul to Philadelphia by plane?

    There are 6895.9 mi between Seoul and Philadelphia. Flights usually cover this in 17h 26m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seoul to Philadelphia Airport?

    Prices for flights from Seoul to Philadelphia Airport refresh daily.

  • How many operators does momondo search for flights from Seoul to Philadelphia Airport?

  • How old do you have to be to fly from Seoul to Philadelphia Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seoul to Philadelphia?

Best airlines flying from Seoul to Philadelphia

Compare and see reviews for airlines that fly from Seoul to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $633Free CancellationRating
7.9
7,996 reviews
Search Delta flights
Korean AirPriceFrom $782Free CancellationRating
8.4
1,155 reviews
Search Korean Air flights
Air CanadaPriceFrom $811Free CancellationRating
7.1
10,380 reviews
Search Air Canada flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Philadelphia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to Philadelphia. momondo saves you time and could save you money on your trip.

Can I find flights from Seoul to Philadelphia with flexible booking policies on momondo?

Yes. All flights to Philadelphia from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seoul to Philadelphia?

Once all potential Seoul to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seoul to Philadelphia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Seoul and alert you when they change.

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