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Cheap flights from Philadelphia to Seoul from $541

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 7/26. 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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Find the cheapest flights from Philadelphia to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 4:20 am
PHL
-
ICN
33h 20m
1 stop
United Airlines Logo
11:30 am - 7:50 am
ICN
-
PHL
33h 20m
1 stop
$1,011United Airlines
Mon, Jul 20 - Tue, Aug 4
United Airlines Logo
6:36 pm - 4:20 am
PHL
-
ICN
20h 44m
1 stop
United Airlines Logo
4:50 pm - 7:49 am
ICN
-
PHL
27h 59m
1 stop
$1,016United Airlines
Wed, Sep 2 - Wed, Sep 16
United Airlines Logo
11:03 am - 4:20 am
PHL
-
ICN
28h 17m
2 stops
United Airlines Logo
11:30 am - 6:54 pm
ICN
-
PHL
20h 24m
2 stops
$1,021United Airlines
Wed, Sep 2 - Tue, Sep 22
United Airlines Logo
6:13 pm - 4:15 pm
PHL
-
ICN
32h 02m
1 stop
United Airlines Logo
6:00 pm - 7:45 am
ICN
-
PHL
27h 45m
1 stop
$1,024United Airlines
Sun, Nov 1 - Thu, Nov 12
United Airlines Logo
6:36 pm - 3:00 pm
PHL
-
ICN
31h 24m
1 stop
United Airlines Logo
5:15 pm - 2:43 pm
ICN
-
PHL
34h 28m
2 stops
$1,028United Airlines
Sun, Oct 4 - Thu, Oct 15
Asiana Airlines Logo
7:40 pm - 3:00 pm
PHL
-
ICN
30h 20m
2 stops
Asiana Airlines Logo
5:15 pm - 9:46 am
ICN
-
PHL
29h 31m
2 stops
$1,030Asiana Airlines
Sun, Oct 4 - Thu, Oct 15
Asiana Airlines Logo
10:50 am - 10:25 pm
PHL
-
GMP
22h 35m
2 stops
Asiana Airlines Logo
8:10 am - 10:46 pm
GMP
-
PHL
27h 36m
2 stops
$1,388Asiana Airlines
Wed, Aug 12 - Fri, Aug 21
Japan Airlines Logo
7:00 am - 5:55 pm
PHL
-
GMP
21h 55m
2 stops
Japan Airlines Logo
8:00 am - 6:19 pm
GMP
-
PHL
23h 19m
2 stops
$1,496Japan Airlines
Mon, Aug 31 - Wed, Sep 30
Japan Airlines Logo
7:36 am - 9:15 pm
PHL
-
GMP
24h 39m
2 stops
Japan Airlines Logo
7:15 pm - 4:38 pm
GMP
-
PHL
34h 23m
2 stops
$1,587Japan Airlines
Fri, Aug 21 - Wed, Aug 26
Multiple Airlines Logo
8:20 am - 10:05 pm
PHL
-
GMP
24h 45m
2 stops
Multiple Airlines Logo
12:05 pm - 8:25 pm
GMP
-
PHL
22h 20m
2 stops
$1,647Multiple Airlines
Wed, Oct 28 - Fri, Nov 13

United Airlines flights from Philadelphia to Seoul

Our best United Airlines deals on Philadelphia to Seoul flight tickets
United Airlines
Jul 20
PHL6:00 amPhiladelphia
33h 20m
1 stop
ICN4:20 amIncheon Intl
Aug 4
ICN11:30 amIncheon Intl
33h 20m
1 stop
PHL7:50 amPhiladelphia
$1,011
United Airlines
Sep 2
PHL6:00 amPhiladelphia
20h 00m
1 stop
ICN3:00 pmIncheon Intl
Sep 24
ICN11:30 amIncheon Intl
22h 45m
1 stop
PHL9:15 pmPhiladelphia
$1,016
United Airlines
Sep 2
PHL1:35 pmPhiladelphia
25h 45m
2 stops
ICN4:20 amIncheon Intl
Sep 16
ICN4:50 pmIncheon Intl
32h 33m
2 stops
PHL12:23 pmPhiladelphia
$1,021

Asiana Airlines flights from Philadelphia to Seoul

Our best Asiana Airlines deals on Philadelphia to Seoul flight tickets
Asiana Airlines
Oct 4
PHL7:40 pmPhiladelphia
30h 20m
2 stops
ICN3:00 pmIncheon Intl
Oct 15
ICN5:15 pmIncheon Intl
29h 31m
2 stops
PHL9:46 amPhiladelphia
$1,030
Asiana Airlines
Nov 2
PHL6:10 amPhiladelphia
20h 05m
1 stop
ICN4:15 pmIncheon Intl
Nov 13
ICN12:45 pmIncheon Intl
24h 01m
2 stops
PHL10:46 pmPhiladelphia
$1,080
Asiana Airlines
Oct 23
PHL6:36 pmPhiladelphia
31h 39m
1 stop
ICN3:15 pmIncheon Intl
Nov 4
ICN12:45 pmIncheon Intl
18h 13m
1 stop
PHL4:58 pmPhiladelphia
$1,085

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 May 26, 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 7/20

6:00 am-4:20 am

1 stop33h 20m

Incheon Intl

Tue 8/4

11:30 am-7:50 am

1 stop33h 20m

$1,011

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 9/2

6:36 pm-4:20 am

1 stop20h 44m

Incheon Intl

Wed 9/16

4:50 pm-7:49 am

1 stop27h 59m

$1,016

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 9/2

11:03 am-4:20 am

2 stops28h 17m

Incheon Intl

Tue 9/22

11:30 am-6:54 pm

2 stops20h 24m

$1,021

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 11/1

6:13 pm-4:15 pm

1 stop32h 02m

Incheon Intl

Thu 11/12

6:00 pm-7:45 am

1 stop27h 45m

$1,024

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 10/4

6:36 pm-3:00 pm

1 stop31h 24m

Incheon Intl

Thu 10/15

5:15 pm-2:43 pm

2 stops34h 28m

$1,028

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 10/4

7:40 pm-3:00 pm

2 stops30h 20m

Incheon Intl

Thu 10/15

5:15 pm-9:46 am

2 stops29h 31m

$1,030

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Wed 8/12

10:50 am-10:25 pm

2 stops22h 35m

Seoul Gimpo Intl

Fri 8/21

8:10 am-10:46 pm

2 stops27h 36m

$1,388
Quickest round-trip

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 8/31

7:00 am-5:55 pm

2 stops21h 55m

Seoul Gimpo Intl

Wed 9/30

8:00 am-6:19 pm

2 stops23h 19m

$1,496

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Fri 8/21

7:36 am-9:15 pm

2 stops24h 39m

Seoul Gimpo Intl

Wed 8/26

7:15 pm-4:38 pm

2 stops34h 23m

$1,587

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Wed 10/28

8:20 am-10:05 pm

2 stops24h 45m

Seoul Gimpo Intl

Fri 11/13

12:05 pm-8:25 pm

2 stops22h 20m

$1,647

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 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 September is another great option to travel to Seoul, with average flight prices from Philadelphia averaging around $507.

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 $1,105 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 $866 on momondo.

Can stopping save me money on Philadelphia to Seoul flights?

You could potentially save up to 25% 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

18h 55m

Direct flights

None
The fastest flight from Philadelphia to Seoul takes 18h 55m
There are no direct flights from Philadelphia to Seoul. There are no popular flight routes from Philadelphia to Seoul.
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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 18h 55m.

  • 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 $778Free CancellationRating
7.1
11,090 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,633 reviews
Search American Airlines flights
DeltaPriceFrom $845Free CancellationRating
7.9
8,425 reviews
Search Delta flights
United AirlinesPriceFrom $850Free CancellationRating
7.4
9,752 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $915Free CancellationRating
8.1
534 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,129Free CancellationRating
8.4
1,217 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