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Cheap flights from Philadelphia to Seoul from $612

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Seoul departing on 8/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:36 pm - 4:20 am
PHL
-
ICN
20h 44m
1 stop
United Airlines Logo
11:45 am - 4:58 pm
ICN
-
PHL
18h 13m
1 stop
$1,022United Airlines
Mon, Oct 5 - Wed, Oct 28
United Airlines Logo
6:35 pm - 3:00 pm
PHL
-
ICN
31h 25m
2 stops
United Airlines Logo
5:15 pm - 10:27 am
ICN
-
PHL
30h 12m
2 stops
$1,027United Airlines
Sun, Oct 4 - Tue, Oct 20
United Airlines Logo
9:27 am - 3:00 pm
PHL
-
ICN
40h 33m
1 stop
United Airlines Logo
4:50 pm - 7:49 am
ICN
-
PHL
27h 59m
1 stop
$1,031United Airlines
Sun, Oct 4 - Mon, Oct 19
Delta Logo
7:05 am - 4:50 pm
PHL
-
ICN
20h 45m
1 stop
Delta Logo
7:40 pm - 11:40 pm
ICN
-
PHL
17h 00m
1 stop
$1,067Delta
Wed, Sep 2 - Mon, Sep 14
Delta Logo
6:15 am - 4:50 pm
PHL
-
ICN
21h 35m
2 stops
Delta Logo
6:50 pm - 12:27 am
ICN
-
PHL
18h 37m
1 stop
$1,071Delta
Wed, Sep 2 - Mon, Sep 14
Asiana Airlines Logo
6:36 pm - 4:20 am
PHL
-
ICN
20h 44m
1 stop
Asiana Airlines Logo
11:45 am - 4:58 pm
ICN
-
PHL
18h 13m
1 stop
$1,075Asiana Airlines
Mon, Oct 5 - Wed, Oct 28
Japan Airlines Logo
7:00 am - 5:55 pm
PHL
-
GMP
21h 55m
2 stops
Japan Airlines Logo
8:00 am - 6:30 pm
GMP
-
PHL
23h 30m
2 stops
$1,369Japan Airlines
Wed, Sep 2 - Sat, Sep 12
Japan Airlines Logo
7:00 am - 5:55 pm
PHL
-
GMP
21h 55m
2 stops
Japan Airlines Logo
8:00 am - 6:30 pm
GMP
-
PHL
23h 30m
2 stops
$1,426Japan Airlines
Wed, Sep 2 - Sat, Sep 12
Multiple Airlines Logo
10:35 am - 9:15 pm
PHL
-
GMP
21h 40m
2 stops
Multiple Airlines Logo
12:05 pm - 10:43 pm
GMP
-
PHL
23h 38m
2 stops
$1,493Multiple Airlines
Mon, Oct 5 - Wed, Oct 21
Multiple Airlines Logo
8:25 am - 9:15 pm
PHL
-
GMP
23h 50m
2 stops
Multiple Airlines Logo
12:05 pm - 11:42 pm
GMP
-
PHL
24h 37m
2 stops
$1,584Multiple Airlines
Tue, Oct 6 - Wed, Oct 28

Delta flights from Philadelphia to Seoul

Our best Delta deals on Philadelphia to Seoul flight tickets
Delta
Aug 31
PHL6:45 amPhiladelphia
18h 25m
1 stop
ICN2:10 pmIncheon Intl
Sep 30
ICN6:50 pmIncheon Intl
27h 38m
1 stop
PHL9:28 amPhiladelphia
$1,067
Delta
Aug 31
PHL6:15 amPhiladelphia
21h 35m
2 stops
ICN4:50 pmIncheon Intl
Sep 30
ICN6:50 pmIncheon Intl
18h 37m
1 stop
PHL12:27 amPhiladelphia
$1,071
Delta
Sep 9
PHL7:00 amPhiladelphia
19h 20m
1 stop
ICN3:20 pmIncheon Intl
Sep 23
ICN10:15 amIncheon Intl
19h 02m
1 stop
PHL4:17 pmPhiladelphia
$1,077

Air Canada flights from Philadelphia to Seoul

Our best Air Canada deals on Philadelphia to Seoul flight tickets
Air Canada
Sep 17
PHL10:05 amPhiladelphia
17h 20m
1 stop
ICN4:25 pmIncheon Intl
Oct 7
ICN5:45 pmIncheon Intl
29h 00m
2 stops
PHL9:45 amPhiladelphia
$1,082
Air Canada
Oct 6
PHL4:20 pmPhiladelphia
34h 45m
2 stops
ICN4:05 pmIncheon Intl
Oct 20
ICN5:45 pmIncheon Intl
29h 00m
2 stops
PHL9:45 amPhiladelphia
$1,086
Air Canada
Oct 5
PHL4:20 pmPhiladelphia
34h 45m
2 stops
ICN4:05 pmIncheon Intl
Oct 14
ICN5:45 pmIncheon Intl
29h 00m
2 stops
PHL9:45 amPhiladelphia
$1,087

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Seoul 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 April 30, 2026.
Use the filters below to find and compare flights from Philadelphia to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 10/5

6:36 pm-4:20 am

1 stop20h 44m

Incheon Intl

Wed 10/28

11:45 am-4:58 pm

1 stop18h 13m

$1,022

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 10/4

6:35 pm-3:00 pm

2 stops31h 25m

Incheon Intl

Tue 10/20

5:15 pm-10:27 am

2 stops30h 12m

$1,027

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 10/4

9:27 am-3:00 pm

1 stop40h 33m

Incheon Intl

Mon 10/19

4:50 pm-7:49 am

1 stop27h 59m

$1,031
Quickest round-trip

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 9/2

7:05 am-4:50 pm

1 stop20h 45m

Incheon Intl

Mon 9/14

7:40 pm-11:40 pm

1 stop17h 00m

$1,067

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 9/2

6:15 am-4:50 pm

2 stops21h 35m

Incheon Intl

Mon 9/14

6:50 pm-12:27 am

1 stop18h 37m

$1,071

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 10/5

6:36 pm-4:20 am

1 stop20h 44m

Incheon Intl

Wed 10/28

11:45 am-4:58 pm

1 stop18h 13m

$1,075

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Wed 9/2

7:00 am-5:55 pm

2 stops21h 55m

Seoul Gimpo Intl

Sat 9/12

8:00 am-6:30 pm

2 stops23h 30m

$1,369

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Wed 9/2

7:00 am-5:55 pm

2 stops21h 55m

Seoul Gimpo Intl

Sat 9/12

8:00 am-6:30 pm

2 stops23h 30m

$1,426

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 10/5

10:35 am-9:15 pm

2 stops21h 40m

Seoul Gimpo Intl

Wed 10/21

12:05 pm-10:43 pm

2 stops23h 38m

$1,493

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Tue 10/6

8:25 am-9:15 pm

2 stops23h 50m

Seoul Gimpo Intl

Wed 10/28

12:05 pm-11:42 pm

2 stops24h 37m

$1,584

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Philadelphia to Seoul

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 Philadelphia and Seoul?

What is the cheapest month to fly to Seoul?

The month of August is another great option to travel to Seoul, with average flight prices from Philadelphia averaging around $493.

How far in advance should I book a flight from Philadelphia to Seoul?

You are more likely to see cheaper flights to Seoul from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,096 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Philadelphia for as low as $928 on momondo.

Can stopping save me money on Philadelphia to Seoul flights?

You could potentially save up to 27% on your flight if you consider stops on a Philadelphia to Seoul flight.

How have Philadelphia to Seoul flight prices changed over time?

When to book flights from Philadelphia to Seoul

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

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

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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Philadelphia to Seoul takes 20h 45m
There are no direct flights from Philadelphia to Seoul. There are no popular flight routes from Philadelphia to Seoul.
Search flight deals

Frequently asked questions about flying from Philadelphia to Seoul

  • How far is Philadelphia to Seoul by plane?

    Philadelphia and Seoul are 6895.9 mi apart from one another. In terms of flight time, this usually takes a little over 20h 45m.

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

    Prices for flights from Philadelphia Airport to Seoul refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Philadelphia to Seoul

Compare and see reviews for airlines that fly from Philadelphia to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $675Free CancellationRating
7.1
10,982 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,681 reviews
Search American Airlines flights
United AirlinesPriceFrom $845Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights
DeltaPriceFrom $845Free CancellationRating
7.9
8,465 reviews
Search Delta flights
Asiana AirlinesPriceFrom $915Free CancellationRating
8.1
524 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,129Free CancellationRating
8.4
1,216 reviews
Search Korean Air flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Seoul from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Seoul.

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

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

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport