PHL - SEL

$398 Find Cheap Flights from Philadelphia to Seoul - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$1,116
Typical prices: $910-$1,475
Alaska Airlines
Sun 1/21Wed 1/24
PHL - ICN • 1 stop
Cheapest one-way
$398
Typical prices: $494-$828
Multiple Airlines
Sat 11/3
PHL - ICN • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Seoul. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top routes
PHL - ICN
Cheapest • 40% average savings
PHL - GMP
Most popular
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travelers who book at least 15 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 28% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Detroit Metropolitan Wayne County (DTW)
Cheapest • Avg $980 (round-trip)
Montreal Pierre Elliott Trudeau Intl (YUL)
Shortest trip • 17h 19m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seoul!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Seoul (PHL-SEL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Seoul

Thu, Jan 21 - Sun, Jan 24
Alaska Airlines Logo
6:14 pm - 5:35 pmPHL  Philadelphia-ICN Incheon Intl
33h 21m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
8:00 pm - 5:11 pmICN  Incheon Intl-PHL Philadelphia
35h 11m1 stop Seattle/Tacoma Intl
$1,116Alaska Airlines
Thu, Jan 21 - Mon, Feb 22
Alaska Airlines Logo
6:14 pm - 5:35 pmPHL  Philadelphia-ICN Incheon Intl
33h 21m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
8:00 pm - 4:56 pmICN  Incheon Intl-PHL Philadelphia
34h 56m1 stop Seattle/Tacoma Intl
$1,116Alaska Airlines
Wed, Nov 25 - Wed, Dec 2
Korean Air Logo
6:00 am - 4:55 pmPHL  Philadelphia-ICN Incheon Intl
20h 55m1 stop Boston Logan Intl
Korean Air Logo
10:35 am - 2:33 pmICN  Incheon Intl-PHL Philadelphia
17h 58m1 stop Atlanta Hartsfield-Jackson
$1,143Korean Air
Thu, Nov 19 - Wed, Dec 2
Air Canada Logo
9:15 am - 6:25 pmPHL  Philadelphia-ICN Incheon Intl
19h 10m1 stop Toronto Pearson Intl
Air Canada Logo
8:10 pm - 10:56 pmICN  Incheon Intl-PHL Philadelphia
16h 46m1 stop Toronto Pearson Intl
$1,144Air Canada
Thu, Nov 19 - Wed, Dec 2
Air Canada Logo
9:15 am - 6:25 pmPHL  Philadelphia-ICN Incheon Intl
19h 10m1 stop Toronto Pearson Intl
Air Canada Logo
8:10 pm - 2:39 pmICN  Incheon Intl-PHL Philadelphia
32h 29m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$1,146Air Canada
Wed, Nov 25 - Wed, Dec 2
Korean Air Logo
6:00 am - 4:55 pmPHL  Philadelphia-ICN Incheon Intl
20h 55m1 stop Boston Logan Intl
Korean Air Logo
10:35 am - 9:28 pmICN  Incheon Intl-PHL Philadelphia
24h 53m1 stop Atlanta Hartsfield-Jackson
$1,189Korean Air
Thu, Jan 21 - Mon, Feb 22
Delta Logo
6:00 am - 4:50 pmPHL  Philadelphia-ICN Incheon Intl
20h 50m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:25 pm - 10:56 pmICN  Incheon Intl-PHL Philadelphia
17h 31m1 stop Atlanta Hartsfield-Jackson
$1,218Delta
Wed, Jan 13 - Wed, Jan 20
Delta Logo
6:00 am - 4:50 pmPHL  Philadelphia-ICN Incheon Intl
20h 50m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:40 pm - 8:37 pmICN  Incheon Intl-PHL Philadelphia
16h 57m1 stop Atlanta Hartsfield-Jackson
$1,218Delta
Sun, Nov 1 - Sat, Nov 14
American Airlines Logo
8:05 pm - 4:45 pmPHL  Philadelphia-ICN Incheon Intl
30h 40m1 stop Dallas/Fort Worth
American Airlines Logo
6:50 pm - 12:17 amICN  Incheon Intl-PHL Philadelphia
19h 27m1 stop Dallas/Fort Worth
$1,218American Airlines
Mon, Nov 2 - Mon, Nov 16
American Airlines Logo
9:57 pm - 4:45 pmPHL  Philadelphia-ICN Incheon Intl
28h 48m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
6:50 pm - 7:34 amICN  Incheon Intl-PHL Philadelphia
26h 44m2 stops Dallas/Fort Worth Columbus
$1,223American Airlines
Booking Insights

Price, demand and travel trends for Philadelphia to Seoul flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Philadelphia to Seoul?

Round-trip flights from Philadelphia to Seoul typically range from $910 to $1,475. The lowest price found in the past 5 days was $1,116, on Alaska Airlines.

What is the cheapest Philadelphia to Seoul flight route?

Philadelphia (PHL) to Incheon Intl Airport (ICN) is the cheapest Philadelphia to Seoul route, averaging $1,166 round-trip. Other Philadelphia to Seoul routes average $2,716, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Philadelphia to Seoul?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Philadelphia to Seoul. It’s 6% cheaper than the average day, while Sunday is the most expensive, with prices 15% higher.

What’s the cheapest month to fly from Philadelphia to Seoul?

•January is the cheapest month to fly from Philadelphia to Seoul at $845 round-trip.
•December ($1,773) and July ($1,524) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 109% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Philadelphia to Seoul the cheapest?

Flights from Philadelphia to Seoul are cheapest 15 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Philadelphia to Seoul flights

Low season

August

Cheapest flight

$398
Beat the crowds with an average 37% drop in travelers.
The most popular month to fly with an average 74% increase in travelers.
One-way flight from Philadelphia to Incheon Intl Airport

When to book flights from Philadelphia to Seoul

Are your dates flexible? Find out the best times to travel from Philadelphia to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Seoul flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Philadelphia to Seoul?

    Three cabin classes are available on flights from Philadelphia to Seoul:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Philadelphia to Seoul?

    A nonstop flight from Philadelphia to Seoul takes 00m, covering 6,900 miles.

  • Do I need a passport to fly from Philadelphia to Seoul?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Philadelphia to Seoul flight?

    Round-trip flights from Philadelphia to Seoul range from $910 to $1,475, with an average of $1,168 over the past 12 months. Anything below $910 counts as a good deal.

  • How expensive are last-minute Philadelphia to Seoul flights?

    Last-minute fares on this route (booked within two weeks of departure) run 14% above the $1,168 route average. Book 15 weeks before departure for the lowest fares.

  • Have flight prices from Philadelphia to Seoul changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,116 to $11,056. That means the highest observed fare was about 10x higher than the lowest one.

  • How are flight prices from Philadelphia to Seoul looking right now?

    One-way fares from Philadelphia to Seoul are currently lower than usual. Average one-way flight prices are about $625, which is 7% below the typical average for this route.

  • What car rental options are available in Seoul?

    Since Seoul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Incheon Intl Airport (ICN) — daily rates from around $12:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

    Near Seoul Gimpo Intl Airport (GMP) — daily rates from around $12:

    • Wheego
    • Yesaway
    • Hi Rent
    • Europcar
    • Cartago Rent A Car

  • Which airports can I use when flying from Philadelphia to Seoul?

    Flights from Philadelphia to Seoul usually depart from Philadelphia (PHL) and may arrive at several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN).

  • Which airports do connecting flights from Philadelphia to Seoul pass through?

    One-stop flights from Philadelphia to Seoul most commonly connect through:

    • Toronto Pearson Intl (YYZ) - 44% of one-stop connections
    • San Francisco (SFO) - 19% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 12% of one-stop connections
    • Dallas/Fort Worth (DFW) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Seoul?

    Yes. Flexible dates can save you up to 19% on flights from Philadelphia to Seoul. Tuesday is the cheapest departure day at $1,103 round-trip on average, while Sunday is the most expensive at $1,348, a difference of $245.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Philadelphia to Seoul?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 17h 19m, compared with 17h 56m via Detroit Metropolitan Wayne County (DTW) and 18h 10m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Philadelphia and Seoul?

    Seoul is 13 hours ahead of Philadelphia (Korean Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seoul?

    Some of the most popular sights in Seoul are Dongdaemun Market and COEX Convention and Exhibition Center. These are among the most viewed places in Seoul on KAYAK.

Your guide to booking Philadelphia to Seoul flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $1,103, about $245 less than Sunday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Philadelphia to Seoul trip for January. Fares historically average $845 round-trip in that month - typically $928 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Incheon Intl Airport

    • Grand Hyatt Incheon
    • Best Western Premier Incheon Airport
    • Hotel Ora Incheon

    Near Seoul Gimpo Intl Airport

    • Intercity Seoul Hotel
    • The First Stay Hotel
    • Hotel M Felice

More options for your flight from Philadelphia to Seoul

Complete your trip to Seoul with a hotel stay or car rental

Car rentals in Seoul
Hotels in Seoul
Vacations in Seoul