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Cheap flights from Philadelphia to Seoul from $424

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 2/11. 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.
Air Canada Logo
3:30 pm - 4:00 pm
PHL
-
ICN
58h 30m2 stops
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
33h 52m2 stops
$763Air Canada
Sun, Jan 11 - Mon, Jan 26
Air Canada Logo
3:30 pm - 4:00 pm
PHL
-
ICN
34h 30m2 stops
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
33h 52m2 stops
$765Air Canada
Mon, Jan 19 - Mon, Jan 26
Air Canada Logo
3:30 pm - 4:00 pm
PHL
-
ICN
34h 30m2 stops
Air Canada Logo
8:10 pm - 3:24 pm
ICN
-
PHL
33h 14m1 stop
$770Air Canada
Wed, Jan 21 - Thu, Feb 5
Air Canada Logo
4:35 pm - 6:25 pm
PHL
-
ICN
35h 50m1 stop
Air Canada Logo
6:55 pm - 2:47 pm
ICN
-
PHL
33h 52m2 stops
$771Air Canada
Sun, Jan 11 - Mon, Jan 26
Air Canada Logo
7:50 am - 6:25 pm
PHL
-
ICN
20h 35m1 stop
Air Canada Logo
6:55 pm - 3:49 pm
ICN
-
PHL
34h 54m2 stops
$775Air Canada
Wed, Jan 21 - Thu, Mar 5
Air Canada Logo
4:35 pm - 6:25 pm
PHL
-
ICN
35h 50m1 stop
Air Canada Logo
8:10 pm - 10:46 pm
ICN
-
PHL
16h 36m1 stop
$776Air Canada
Sun, Jan 11 - Mon, Jan 26
Japan Airlines Logo
10:05 pm - 10:45 am
PHL
-
GMP
23h 40m2 stops
Japan Airlines Logo
7:55 am - 2:21 pm
GMP
-
PHL
19h 26m2 stops
$876Japan Airlines
Sun, Apr 19 - Tue, May 19
Japan Airlines Logo
8:50 am - 10:55 am
PHL
-
GMP
36h 05m2 stops
Japan Airlines Logo
8:00 am - 7:41 am
GMP
-
PHL
37h 41m2 stops
$893Japan Airlines
Mon, Feb 2 - Mon, Feb 9
Japan Airlines Logo
1:38 pm - 10:05 pm
PHL
-
GMP
42h 27m2 stops
Japan Airlines Logo
7:40 pm - 2:39 pm
GMP
-
PHL
32h 59m2 stops
$901Japan Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
1:38 pm - 10:55 am
PHL
-
GMP
31h 17m2 stops
Multiple Airlines Logo
12:05 pm - 11:50 pm
GMP
-
PHL
25h 45m2 stops
$908Multiple Airlines
Thu, Feb 19 - Thu, Feb 26

United Airlines flights from Philadelphia to Seoul

Our best United Airlines deals on Philadelphia to Seoul flight tickets
United Airlines
Jan 24
PHL6:30 amPhiladelphia
33h 10m
2 stops
ICN5:40 amIncheon Intl
Feb 10
ICN12:45 pmIncheon Intl
22h 51m
2 stops
PHL9:36 pmPhiladelphia
$837
Find similar
United Airlines
Jan 23
PHL3:43 pmPhiladelphia
23h 57m
2 stops
ICN5:40 amIncheon Intl
Jan 30
ICN12:45 pmIncheon Intl
24h 14m
2 stops
PHL10:59 pmPhiladelphia
$838
Find similar
United Airlines
Jan 29
PHL8:35 amPhiladelphia
31h 05m
1 stop
ICN5:40 amIncheon Intl
Mar 12
ICN11:45 amIncheon Intl
22h 46m
1 stop
PHL9:31 pmPhiladelphia
$847
Find similar

American Airlines flights from Philadelphia to Seoul

Our best American Airlines deals on Philadelphia to Seoul flight tickets
American Airlines
Jan 11
PHL5:39 pmPhiladelphia
33h 06m
1 stop
ICN4:45 pmIncheon Intl
Feb 5
ICN7:15 pmIncheon Intl
18h 11m
1 stop
PHL11:26 pmPhiladelphia
$857
Find similar
American Airlines
Mar 4
PHL9:48 pmPhiladelphia
28h 57m
2 stops
ICN4:45 pmIncheon Intl
Mar 20
ICN5:55 pmIncheon Intl
26h 35m
2 stops
PHL7:30 amPhiladelphia
$861
Find similar
American Airlines
Jan 8
PHL5:00 amPhiladelphia
21h 45m
1 stop
ICN4:45 pmIncheon Intl
Feb 2
ICN7:15 pmIncheon Intl
26h 31m
2 stops
PHL7:46 amPhiladelphia
$873
Find similar

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 January 7, 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

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 1/11

3:30 pm-4:00 pm

2 stops58h 30m

Incheon Intl

Mon 1/26

6:55 pm-2:47 pm

2 stops33h 52m

$763

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 1/19

3:30 pm-4:00 pm

2 stops34h 30m

Incheon Intl

Mon 1/26

6:55 pm-2:47 pm

2 stops33h 52m

$765

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 1/21

3:30 pm-4:00 pm

2 stops34h 30m

Incheon Intl

Thu 2/5

8:10 pm-3:24 pm

1 stop33h 14m

$770

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 1/11

4:35 pm-6:25 pm

1 stop35h 50m

Incheon Intl

Mon 1/26

6:55 pm-2:47 pm

2 stops33h 52m

$771

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 1/21

7:50 am-6:25 pm

1 stop20h 35m

Incheon Intl

Thu 3/5

6:55 pm-3:49 pm

2 stops34h 54m

$775

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sun 1/11

4:35 pm-6:25 pm

1 stop35h 50m

Incheon Intl

Mon 1/26

8:10 pm-10:46 pm

1 stop16h 36m

$776

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Sun 4/19

10:05 pm-10:45 am

2 stops23h 40m

Seoul Gimpo Intl

Tue 5/19

7:55 am-2:21 pm

2 stops19h 26m

$876

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Mon 2/2

8:50 am-10:55 am

2 stops36h 05m

Seoul Gimpo Intl

Mon 2/9

8:00 am-7:41 am

2 stops37h 41m

$893

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Thu 2/19

1:38 pm-10:05 pm

2 stops42h 27m

Seoul Gimpo Intl

Thu 2/26

7:40 pm-2:39 pm

2 stops32h 59m

$901

PhiladelphiaSeoul

PHL - GMP

PHLGMP

Philadelphia

Thu 2/19

1:38 pm-10:55 am

2 stops31h 17m

Seoul Gimpo Intl

Thu 2/26

12:05 pm-11:50 pm

2 stops25h 45m

$908

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 cheapest month to fly to Seoul?

The month of March is another great option to travel to Seoul, with average flight prices from Philadelphia averaging around $906.

How far in advance should I book a flight 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 $1,080 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 $965 on momondo.

How have Philadelphia to Seoul flight prices changed over time?

As of January 2026, prices for Philadelphia to Seoul flights are approximately 17% cheaper when compared to flights at the same time last year.

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

19h 20m

Direct flights

None
The fastest flight from Philadelphia to Seoul takes 19h 20m
There are no direct flights from Philadelphia to Seoul. There are no popular flight routes from Philadelphia to Seoul.
Search flight deals

  • 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 19h 20m.

  • 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
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,138 reviews
Search United Airlines flights
Air CanadaPriceFrom $794Free CancellationRating
7.1
10,600 reviews
Search Air Canada flights
DeltaPriceFrom $845Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $866Free CancellationRating
7.2
11,090 reviews
Search American Airlines flights
Korean AirPriceFrom $1,076Free CancellationRating
8.4
1,188 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