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Cheap flights from Philadelphia to Seoul from $419

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 9/22. 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 Philadelphia to Seoul (PHL-SEL)

Cheap round-trip flights

Air Canada Logo
9:20 am - 4:15 pmPHL-ICN
17h 55m1 stop
Air Canada Logo
6:00 pm - 9:38 pmICN-PHL
16h 38m1 stop
$772Air Canada
Find Deal
Thu, Sep 25 - Wed, Oct 8
Air Canada Logo
3:25 pm - 4:05 pmPHL-ICN
35h 40m2 stops
Air Canada Logo
7:10 pm - 10:56 pmICN-PHL
16h 46m1 stop
$778Air Canada
Find Deal
Tue, Sep 16 - Tue, Oct 28
Hawaiian Airlines Logo
7:11 pm - 6:35 pmPHL-ICN
34h 24m1 stop
Hawaiian Airlines Logo
8:35 pm - 6:12 pmICN-PHL
34h 37m1 stop
$824Hawaiian Airlines
Find Deal
Tue, Oct 21 - Thu, Oct 30
Delta Logo
6:18 pm - 4:00 amPHL-ICN
20h 42m1 stop
Delta Logo
9:35 am - 4:35 pmICN-PHL
21h 00m1 stop
$826Delta
Find Deal
Tue, Oct 21 - Tue, Nov 4
Delta Logo
6:00 am - 5:20 pmPHL-ICN
22h 20m1 stop
Delta Logo
4:25 pm - 11:19 pmICN-PHL
19h 54m2 stops
$831Delta
Find Deal
Mon, Sep 8 - Wed, Sep 24
United Airlines Logo
6:33 pm - 4:20 amPHL-ICN
20h 47m1 stop
United Airlines Logo
4:50 pm - 5:26 amICN-PHL
25h 36m1 stop
$856United Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
United Airlines Logo
1:03 pm - 4:20 amPHL-ICN
26h 17m2 stops
United Airlines Logo
4:50 pm - 2:16 pmICN-PHL
34h 26m2 stops
$861United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 30
Alaska Airlines Logo
7:22 am - 6:35 pmPHL-ICN
22h 13m1 stop
Alaska Airlines Logo
8:35 pm - 5:40 amICN-PHL
22h 05m1 stop
$866Alaska Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 16
Hawaiian Airlines Logo
7:11 pm - 6:35 pmPHL-ICN
34h 24m1 stop
Hawaiian Airlines Logo
8:35 pm - 5:42 amICN-PHL
23h 07m1 stop
$869Hawaiian Airlines
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Fri, Oct 17 - Mon, Nov 3
Alaska Airlines Logo
7:11 pm - 6:35 pmPHL-ICN
34h 24m1 stop
Alaska Airlines Logo
8:35 pm - 5:42 amICN-PHL
22h 07m1 stop
$874Alaska Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 31

Air Canada flights from Philadelphia to Seoul

Our best Air Canada deals on Philadelphia to Seoul flight tickets
Air Canada
Sep 2
PHL3:25 pmPhiladelphia
35h 40m
2 stops
ICN4:05 pmIncheon Intl
Sep 14
ICN6:00 pmIncheon Intl
33h 38m
1 stop
PHL2:38 pmPhiladelphia
$771
Find similar
Air Canada
Sep 25
PHL9:20 amPhiladelphia
17h 55m
1 stop
ICN4:15 pmIncheon Intl
Oct 8
ICN6:00 pmIncheon Intl
16h 38m
1 stop
PHL9:38 pmPhiladelphia
$772
Find similar
Air Canada
Sep 2
PHL10:35 amPhiladelphia
17h 55m
1 stop
ICN5:30 pmIncheon Intl
Sep 14
ICN6:00 pmIncheon Intl
16h 38m
1 stop
PHL9:38 pmPhiladelphia
$777
Find similar

Delta flights from Philadelphia to Seoul

Our best Delta deals on Philadelphia to Seoul flight tickets
Delta
Sep 8
PHL6:00 amPhiladelphia
21h 25m
1 stop
ICN4:25 pmIncheon Intl
Sep 24
ICN6:50 pmIncheon Intl
19h 04m
1 stop
PHL12:54 amPhiladelphia
$826
Find similar
Delta
Sep 8
PHL6:00 amPhiladelphia
22h 20m
1 stop
ICN5:20 pmIncheon Intl
Sep 24
ICN4:25 pmIncheon Intl
19h 54m
2 stops
PHL11:19 pmPhiladelphia
$831
Find similar
Delta
Oct 15
PHL7:05 amPhiladelphia
19h 15m
1 stop
ICN3:20 pmIncheon Intl
Oct 24
ICN4:25 pmIncheon Intl
17h 35m
1 stop
PHL9:00 pmPhiladelphia
$896
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 August 26, 2025.
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

Thu 9/25

9:20 am-4:15 pm

1 stop17h 55m

Incheon Intl

Wed 10/8

6:00 pm-9:38 pm

1 stop16h 38m

$772

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/16

3:25 pm-4:05 pm

2 stops35h 40m

Incheon Intl

Tue 10/28

7:10 pm-10:56 pm

1 stop16h 46m

$778

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 10/21

7:11 pm-6:35 pm

1 stop34h 24m

Incheon Intl

Thu 10/30

8:35 pm-6:12 pm

1 stop34h 37m

$824

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 10/21

6:18 pm-4:00 am

1 stop20h 42m

Incheon Intl

Tue 11/4

9:35 am-4:35 pm

1 stop21h 00m

$826

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/8

6:00 am-5:20 pm

1 stop22h 20m

Incheon Intl

Wed 9/24

4:25 pm-11:19 pm

2 stops19h 54m

$831

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Mon 9/22

6:33 pm-4:20 am

1 stop20h 47m

Incheon Intl

Mon 9/29

4:50 pm-5:26 am

1 stop25h 36m

$856

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Tue 9/16

1:03 pm-4:20 am

2 stops26h 17m

Incheon Intl

Tue 9/30

4:50 pm-2:16 pm

2 stops34h 26m

$861

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Wed 10/1

7:22 am-6:35 pm

1 stop22h 13m

Incheon Intl

Thu 10/16

8:35 pm-5:40 am

1 stop22h 05m

$866

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Fri 10/17

7:11 pm-6:35 pm

1 stop34h 24m

Incheon Intl

Mon 11/3

8:35 pm-5:42 am

1 stop23h 07m

$869

PhiladelphiaIncheon

PHL - ICN

PHLICN

Philadelphia

Sat 10/18

7:11 pm-6:35 pm

1 stop34h 24m

Incheon Intl

Fri 10/31

8:35 pm-5:42 am

1 stop22h 07m

$874

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 $976.

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

According to our data, Friday is the cheapest day to fly to Seoul from Philadelphia. The lowest ticket price found for a Friday departure recently was $1,137. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,368.

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

Flying to Seoul from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,187 when looking at flights departing in the morning. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,412 per ticket.

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 $1,067 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 $918 on momondo.

Can stopping save me money on Philadelphia to Seoul flights?

You could potentially save up to 57% on your flight if you consider stops on a Philadelphia to Seoul flight.

How have Philadelphia to Seoul flight prices changed over time?

As of August 2025, prices for Philadelphia to Seoul flights are approximately 29% more expensive 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

Direct flights

None
There are no direct flights from Philadelphia to Seoul. There are no popular flight routes from Philadelphia to Seoul.
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  • 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 17h 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
United AirlinesPriceFrom $560Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
Air CanadaPriceFrom $795Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $871Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $872Free CancellationRating
7.9
7,979 reviews
Search Delta flights
Korean AirPriceFrom $1,060Free CancellationRating
8.4
1,133 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