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Cheap flights from Philadelphia to Seoul from $410

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 9/6. 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

Delta Logo
7:00 am - 3:20 pmPHL-ICN
19h 20m1 stop
Delta Logo
6:50 pm - 9:27 amICN-PHL
27h 37m1 stop
$856Delta
Find Deal
Sat, Sep 13 - Sun, Sep 21
United Airlines Logo
6:29 pm - 4:20 amPHL-ICN
20h 51m1 stop
United Airlines Logo
11:30 am - 12:45 amICN-PHL
26h 15m3 stops
$857United Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 16
Delta Logo
6:00 am - 4:30 pmPHL-ICN
21h 30m2 stops
Delta Logo
6:40 pm - 11:43 pmICN-PHL
18h 03m1 stop
$861Delta
Find Deal
Wed, Oct 1 - Thu, Oct 16
Air Canada Logo
3:25 pm - 4:15 pmPHL-ICN
35h 50m1 stop
Air Canada Logo
6:00 pm - 9:38 pmICN-PHL
16h 38m1 stop
$866Air Canada
Find Deal
Mon, Sep 8 - Wed, Sep 24
American Airlines Logo
5:00 am - 3:30 pmPHL-ICN
21h 30m1 stop
American Airlines Logo
6:50 pm - 9:10 amICN-PHL
27h 20m1 stop
$867American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 28
American Airlines Logo
9:21 pm - 3:30 pmPHL-ICN
29h 09m1 stop
American Airlines Logo
5:25 pm - 7:09 amICN-PHL
26h 44m2 stops
$871American Airlines
Find Deal
Mon, Sep 1 - Wed, Sep 17
Air Canada Logo
9:20 am - 4:15 pmPHL-ICN
17h 55m1 stop
Air Canada Logo
5:45 pm - 9:54 amICN-PHL
29h 09m2 stops
$873Air Canada
Find Deal
Tue, Sep 9 - Thu, Sep 18
Japan Airlines Logo
9:15 pm - 9:50 pmPHL-GMP
35h 35m2 stops
Japan Airlines Logo
7:20 pm - 2:47 pmGMP-PHL
32h 27m2 stops
$875Japan Airlines
Find Deal
Mon, Sep 1 - Fri, Sep 12
Japan Airlines Logo
9:15 pm - 10:45 amPHL-GMP
24h 30m2 stops
Japan Airlines Logo
7:55 am - 4:27 pmGMP-PHL
21h 32m2 stops
$902Japan Airlines
Find Deal
Mon, Sep 1 - Wed, Sep 17
United Airlines Logo
12:40 pm - 5:40 amPHL-ICN
27h 00m3 stops
United Airlines Logo
12:45 pm - 9:21 pmICN-PHL
22h 36m2 stops
$912United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18

United Airlines flights from Philadelphia to Seoul

Our best United Airlines deals on Philadelphia to Seoul flight tickets
United Airlines
Oct 1
PHL6:29 pmPhiladelphia
20h 51m
1 stop
ICN4:20 amIncheon Intl
Oct 16
ICN11:30 amIncheon Intl
26h 15m
3 stops
PHL12:45 amPhiladelphia
United Airlines
Nov 4
PHL12:40 pmPhiladelphia
27h 00m
3 stops
ICN5:40 amIncheon Intl
Nov 18
ICN12:45 pmIncheon Intl
22h 36m
2 stops
PHL9:21 pmPhiladelphia
United Airlines
Sep 19
PHL8:15 amPhiladelphia
31h 05m
2 stops
ICN4:20 amIncheon Intl
Oct 5
ICN4:50 pmIncheon Intl
44h 55m
3 stops
PHL12:45 amPhiladelphia

Delta flights from Philadelphia to Seoul

Our best Delta deals on Philadelphia to Seoul flight tickets
Delta
Sep 13
PHL7:00 amPhiladelphia
19h 20m
1 stop
ICN3:20 pmIncheon Intl
Sep 21
ICN6:50 pmIncheon Intl
27h 37m
1 stop
PHL9:27 amPhiladelphia
Delta
Oct 1
PHL6:00 amPhiladelphia
21h 30m
2 stops
ICN4:30 pmIncheon Intl
Oct 16
ICN6:40 pmIncheon Intl
18h 03m
1 stop
PHL11:43 pmPhiladelphia
Delta
Nov 22
PHL6:30 pmPhiladelphia
31h 00m
1 stop
ICN3:30 pmIncheon Intl
Dec 7
ICN5:50 pmIncheon Intl
19h 07m
1 stop
PHL10:57 pmPhiladelphia

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 $1,001.

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 4 weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,106 when searching 4 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 $945 on momondo.

How have Philadelphia to Seoul flight prices changed over time?

As of June 2025, prices for Philadelphia to Seoul flights are approximately 4% 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

Best Price Found

$410

Fastest flight time

17h 50m

Direct flights

None

Airports in Seoul

2 airports
The best one-way flight to Seoul from Philadelphia in the past 72 hours is $410. The best round-trip flight deal from Philadelphia to Seoul found on momondo in the last 72 hours is $856.
The fastest flight from Philadelphia to Seoul takes 17h 50m
There are no direct flights from Philadelphia to Seoul. Popular non-direct routes for this connection are Philadelphia Airport - Seoul Gimpo Intl Airport and Philadelphia Airport - Incheon Intl Airport.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)

  • 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 50m.

  • 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 $601Free CancellationRating
7.4
8,801 reviews
Search United Airlines flights
Air CanadaPriceFrom $795Free CancellationRating
7.1
9,553 reviews
Search Air Canada flights
American AirlinesPriceFrom $871Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $872Free CancellationRating
8.0
7,963 reviews
Search Delta flights
Korean AirPriceFrom $1,076Free CancellationRating
8.4
1,090 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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1 adult
Sat 6/21
Sat 6/28

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