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Cheap flights from Seoul to Philadelphia from $428

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 10/15. 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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0 bags

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Cheap round-trip flights

American Airlines Logo
5:25 pm - 7:07 amICN-PHL
26h 42m2 stops
American Airlines Logo
6:44 pm - 3:30 pmPHL-ICN
31h 46m1 stop
$494American Airlines
Find Deal
Fri, Sep 12 - Thu, Sep 18
Hawaiian Airlines Logo
8:35 pm - 6:02 amICN-PHL
22h 27m1 stop
Hawaiian Airlines Logo
7:22 am - 6:35 pmPHL-ICN
22h 13m1 stop
$498Hawaiian Airlines
Find Deal
Fri, Sep 26 - Fri, Oct 3
Hawaiian Airlines Logo
8:35 pm - 5:07 amICN-PHL
70h 32m1 stop
Hawaiian Airlines Logo
6:35 pm - 6:35 pmPHL-ICN
34h 00m1 stop
$505Hawaiian Airlines
Find Deal
Thu, Dec 25 - Thu, Jan 8
Alaska Airlines Logo
8:35 pm - 6:02 amICN-PHL
22h 27m1 stop
Alaska Airlines Logo
7:11 pm - 6:35 pmPHL-ICN
34h 24m1 stop
$531Alaska Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
United Airlines Logo
6:00 pm - 7:41 pmICN-PHL
39h 41m1 stop
United Airlines Logo
6:16 pm - 5:40 amPHL-ICN
21h 24m1 stop
$532United Airlines
Find Deal
Thu, Dec 4 - Tue, Jan 6
United Airlines Logo
11:30 am - 5:28 pmICN-PHL
18h 58m1 stop
United Airlines Logo
6:30 am - 3:00 pmPHL-ICN
19h 30m1 stop
$533United Airlines
Find Deal
Tue, Sep 16 - Mon, Sep 22
Air Canada Logo
6:00 pm - 9:38 pmICN-PHL
16h 38m1 stop
Air Canada Logo
9:20 am - 4:15 pmPHL-ICN
17h 55m1 stop
$535Air Canada
Find Deal
Sun, Oct 19 - Thu, Oct 23
Air Canada Logo
6:00 pm - 9:38 pmICN-PHL
16h 38m1 stop
Air Canada Logo
9:20 am - 4:15 pmPHL-ICN
17h 55m1 stop
$574Air Canada
Find Deal
Sun, Sep 21 - Sat, Sep 27
Alaska Airlines Logo
9:25 pm - 5:57 pmICN-PHL
33h 32m2 stops
Alaska Airlines Logo
7:22 am - 6:35 pmPHL-ICN
22h 13m1 stop
$628Alaska Airlines
Find Deal
Mon, Sep 22 - Fri, Sep 26
Delta Logo
7:20 pm - 5:45 amICN-PHL
23h 25m2 stops
Delta Logo
6:00 am - 4:30 pmPHL-ICN
21h 30m2 stops
$637Delta
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Thu, Sep 11 - Mon, Sep 29

American Airlines flights from Seoul to Philadelphia

Our best American Airlines deals on Seoul to Philadelphia flight tickets
American Airlines
Sep 12
ICN5:25 pmIncheon Intl
26h 42m
2 stops
PHL7:07 amPhiladelphia
Sep 18
PHL6:44 pmPhiladelphia
31h 46m
1 stop
ICN3:30 pmIncheon Intl
$494
Find similar
American Airlines
Sep 15
ICN5:25 pmIncheon Intl
26h 42m
2 stops
PHL7:07 amPhiladelphia
Sep 24
PHL6:42 amPhiladelphia
19h 48m
1 stop
ICN3:30 pmIncheon Intl
$518
Find similar
American Airlines
Sep 11
ICN5:25 pmIncheon Intl
20h 25m
1 stop
PHL12:50 amPhiladelphia
Sep 29
PHL5:15 pmPhiladelphia
33h 15m
1 stop
ICN3:30 pmIncheon Intl
$519
Find similar

Hawaiian Airlines flights from Seoul to Philadelphia

Our best Hawaiian Airlines deals on Seoul to Philadelphia flight tickets
Hawaiian Airlines
Sep 26
ICN8:35 pmIncheon Intl
22h 27m
1 stop
PHL6:02 amPhiladelphia
Oct 3
PHL7:22 amPhiladelphia
22h 13m
1 stop
ICN6:35 pmIncheon Intl
$498
Find similar
Hawaiian Airlines
Dec 25
ICN8:35 pmIncheon Intl
70h 32m
1 stop
PHL5:07 amPhiladelphia
Jan 8
PHL6:35 pmPhiladelphia
34h 00m
1 stop
ICN6:35 pmIncheon Intl
$505
Find similar
Hawaiian Airlines
Oct 18
ICN8:35 pmIncheon Intl
22h 05m
1 stop
PHL5:40 amPhiladelphia
Oct 28
PHL7:12 pmPhiladelphia
34h 23m
1 stop
ICN6:35 pmIncheon Intl
$513
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 August 14, 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 9/12

5:25 pm-7:07 am

2 stops26h 42m

Philadelphia

Thu 9/18

6:44 pm-3:30 pm

1 stop31h 46m

$494

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Fri 9/26

8:35 pm-6:02 am

1 stop22h 27m

Philadelphia

Fri 10/3

7:22 am-6:35 pm

1 stop22h 13m

$498

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 12/25

8:35 pm-5:07 am

1 stop70h 32m

Philadelphia

Thu 1/8

6:35 pm-6:35 pm

1 stop34h 00m

$505

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sat 9/27

8:35 pm-6:02 am

1 stop22h 27m

Philadelphia

Sat 10/4

7:11 pm-6:35 pm

1 stop34h 24m

$531

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 12/4

6:00 pm-7:41 pm

1 stop39h 41m

Philadelphia

Tue 1/6

6:16 pm-5:40 am

1 stop21h 24m

$532

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Tue 9/16

11:30 am-5:28 pm

1 stop18h 58m

Philadelphia

Mon 9/22

6:30 am-3:00 pm

1 stop19h 30m

$533

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 10/19

6:00 pm-9:38 pm

1 stop16h 38m

Philadelphia

Thu 10/23

9:20 am-4:15 pm

1 stop17h 55m

$535

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Sun 9/21

6:00 pm-9:38 pm

1 stop16h 38m

Philadelphia

Sat 9/27

9:20 am-4:15 pm

1 stop17h 55m

$574

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Mon 9/22

9:25 pm-5:57 pm

2 stops33h 32m

Philadelphia

Fri 9/26

7:22 am-6:35 pm

1 stop22h 13m

$628

IncheonPhiladelphia

ICN - PHL

ICNPHL

Incheon Intl

Thu 9/11

7:20 pm-5:45 am

2 stops23h 25m

Philadelphia

Mon 9/29

6:00 am-4:30 pm

2 stops21h 30m

$637

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 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 13% 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 August 2025, prices for Seoul to Philadelphia flights are approximately 55% 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

Best Price Found

$428

Fastest flight time

16h 38m

Direct flights

None

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Seoul in the past 72 hours is $428. The best round-trip flight deal from Seoul to Philadelphia found on momondo in the last 72 hours is $494.
The fastest flight from Seoul to Philadelphia takes 16h 38m
There are no direct flights from Seoul to Philadelphia. Popular non-direct route for this connection is Incheon Intl Airport - Philadelphia Airport.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

  • How far is Seoul to Philadelphia by plane?

    There are 6895.9 mi between Seoul and Philadelphia. Flights usually cover this in 16h 38m, 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
United AirlinesPriceFrom $659Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
DeltaPriceFrom $695Free CancellationRating
8.0
7,980 reviews
Search Delta flights
Korean AirPriceFrom $782Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights
Air CanadaPriceFrom $811Free CancellationRating
7.1
9,949 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
Reading
Dewey Beach
Newark
Cherry Hill
North Wildwood
Dover
Lewes
Avalon
Stone Harbor
Vineland
Essington
Exton
New Castle
Pottstown

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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