$459+ Cheap flights from Philadelphia (PHL) to Seoul (SEL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEL
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Philadelphia to SeoulExplore the most affordable flight options available from Philadelphia to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Philadelphia to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:25 am -
2 stops31h 25m
Wed 12/910:20 pm -
2 stops33h 06m
Deal found 11/1![Multiple Airlines logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/299:50 am -
2 stops29h 50m
Thu 1/2112:45 pm -
1 stop18h 23m
Deal found 11/3![United Airlines logo]()
$1,139
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/276:10 pm -
1 stop32h 05m
Sat 3/612:45 pm -
1 stop18h 00m
Deal found 11/2![United Airlines logo]()
$1,148
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:15 am -
1 stop20h 15m
Wed 12/25:40 pm -
1 stop21h 12m
Deal found 11/4![Delta logo]()
$1,158
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:00 am -
1 stop20h 45m
Sun 12/65:40 pm -
1 stop21h 17m
Deal found 11/2![Delta logo]()
$1,159
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:45 am -
2 stops22h 00m
Mon 11/236:45 pm -
2 stops18h 30m
Deal found 11/3![Delta logo]()
$1,163
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:00 am -
1 stop20h 50m
Sun 2/285:40 pm -
1 stop21h 06m
Deal found 11/3![Delta logo]()
$1,219
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:00 am -
2 stops21h 45m
Mon 3/16:45 pm -
2 stops19h 12m
Deal found 11/3![Delta logo]()
$1,223
This Cathay Pacific deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:00 pm -
2 stops30h 45m
Wed 12/27:35 pm -
2 stops26h 32m
Deal found 11/4![Multiple Airlines logo]()
$1,252
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:51 pm -
3 stops55h 24m
Wed 3/312:45 pm -
1 stop18h 27m
Deal found 11/2![United Airlines logo]()
$1,307
This KAYAK deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:35 pm -
2 stops24h 05m
Sun 11/156:30 pm -
2 stops29h 19m
Deal found 11/3![Asiana Airlines logo]()
$1,332
Best flights from Philadelphia to SeoulDiscover carefully curated flight deals from Philadelphia to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Philadelphia to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/216:14 pm -
1 stop21h 26m
Mon 2/2212:45 pm -
1 stop18h 27m
Deal found 11/1![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/95:12 pm -
1 stop22h 33m
Tue 3/307:20 pm -
1 stop23h 21m
Deal found 11/4![Delta logo]()
$1,218
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:00 am -
1 stop20h 15m
Tue 11/2412:45 pm -
1 stop18h 30m
Deal found 10/31![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/66:01 am -
1 stop20h 49m
Sat 3/207:25 pm -
1 stop27h 02m
Deal found 11/3![Delta logo]()
$1,219
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/99:00 am -
1 stop30h 40m
Tue 3/304:50 pm -
1 stop27h 55m
Deal found 11/1![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/266:00 am -
1 stop19h 50m
Tue 3/307:20 pm -
1 stop23h 21m
Deal found 11/3![Delta logo]()
$1,219
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/226:14 pm -
1 stop21h 26m
Fri 2/2612:45 pm -
1 stop18h 27m
Deal found 11/3![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/195:30 am -
1 stop19h 40m
Thu 4/294:25 pm -
1 stop21h 26m
Deal found 11/1![Delta logo]()
$1,219
Last-minute flights from Philadelphia to SeoulDiscover last-minute flight deals from Philadelphia to Seoul. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Seoul. Data last updated November 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:45 am -
2 stops22h 00m
Mon 11/236:45 pm -
2 stops18h 30m
Deal found 11/3![Delta logo]()
$1,163
This KAYAK deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:35 pm -
2 stops24h 05m
Sun 11/156:30 pm -
2 stops29h 19m
Deal found 11/3![Asiana Airlines logo]()
$1,332
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:15 am -
1 stop20h 15m
Wed 12/25:40 pm -
1 stop21h 12m
Deal found 11/4![Delta logo]()
$1,158
This Cathay Pacific deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:00 pm -
2 stops30h 45m
Wed 12/27:35 pm -
2 stops26h 32m
Deal found 11/4![Multiple Airlines logo]()
$1,252
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:00 am -
1 stop20h 45m
Sun 12/65:40 pm -
1 stop21h 17m
Deal found 11/2![Delta logo]()
$1,159
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:25 am -
2 stops31h 25m
Wed 12/910:20 pm -
2 stops33h 06m
Deal found 11/1![Multiple Airlines logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:51 pm -
3 stops55h 24m
Wed 3/312:45 pm -
1 stop18h 27m
Deal found 11/2![United Airlines logo]()
$1,307
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/276:10 pm -
1 stop32h 05m
Wed 3/312:45 pm -
1 stop18h 27m
Deal found 11/2![United Airlines logo]()
$1,148
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:00 am -
1 stop20h 50m
Sun 2/285:40 pm -
1 stop21h 06m
Deal found 11/3![Delta logo]()
$1,219
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/299:50 am -
2 stops29h 50m
Thu 1/2112:45 pm -
1 stop18h 23m
Deal found 11/3![United Airlines logo]()
$1,139
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:00 am -
2 stops21h 45m
Mon 3/16:45 pm -
2 stops19h 12m
Deal found 11/3![Delta logo]()
$1,223
One-way flights from Philadelphia to SeoulSearch for one-way flight options from Philadelphia to Seoul. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Philadelphia to Seoul. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/226:15 am -
2 stops33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/146:15 am -
2 stops33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/92:30 pm -
2 stops48h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/199:54 am -
3 stops53h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:15 am -
2 stops48h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/226:37 pm -
2 stops55h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:14 pm -
2 stops46h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:30 am -
2 stops30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/209:51 pm -
3 stops52h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$527
Find flight deals from Philadelphia to Seoul
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,114 |
One-way from | $459 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,588 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated November 5, 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
Cheapest round-trip
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Fri 1/22
6:15 am-5:25 am
2 stops33h 10m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$459
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Sat 12/5
12:45 pm-9:20 pm
3 stops42h 35m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$500
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Mon 2/22
6:37 pm-4:20 pm
2 stops55h 43m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$502
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Tue 11/17
12:08 pm-5:45 am
1 stop27h 37m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$533
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Tue 1/19
9:00 am-5:40 am
1 stop30h 40m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$533
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Fri 11/13
6:00 am-5:45 pm
2 stops21h 45m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$533
Quickest round-trip
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Mon 11/16
5:15 am-3:30 pm
1 stop20h 15m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$533
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Sun 1/10
3:09 pm-9:20 pm
3 stops40h 11m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$580
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Wed 12/2
6:11 pm-5:30 am
2 stops45h 19m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$650
PhiladelphiaIncheon
PHL Philadelphia - ICN Incheon Intl
PHLICN
Philadelphia
Sat 11/21
6:00 am-6:20 pm
2 stops46h 20m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$685
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Seoul
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Seoul in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Seoul flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Seoul
Have a flexible travel schedule? Discover the best time to fly to Seoul from Philadelphia with our price prediction graph.
PHL-SEL
PHL-ICN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Seoul
PHL-SEL
PHL-ICN
What is the cheapest month to book a flight from Philadelphia to Seoul?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Seoul (average of $856). Flying from Philadelphia to Seoul in December is currently the most expensive (average of $1,647). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Philadelphia to Seoul?
Airfare is below average for this route at the moment.
Philadelphia to Seoul flights typically cost between $1,146 and $1,606 in January.The cheapest round-trip price found within the last 5 days was $1,114 on Air Canada (Jan 19-Mar 1).
What’s the top layover airport for flights from Philadelphia to Seoul?
Share of 1-stop round-trip flights from Philadelphia to Seoul chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dallas (DFW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Philadelphia to Seoul on Cheapflights.
What’s the cheapest layover airport for flights from Philadelphia to Seoul?
Average round-trip fare for 1-stop flights from Philadelphia to Seoul, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $865.
What’s the fastest layover option from Philadelphia to Seoul?
Shortest average travel time for 1-stop one-way flights from Philadelphia to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 19h 50m.
Which airport typically offers the quickest layover for flights from Philadelphia to Seoul?
Average layover duration for 1-stop one-way flights from Philadelphia to Seoul, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 1h 30m.
How far ahead should I book a flight from Philadelphia to Seoul?
To ensure you get the cheapest price possible for a flight from Philadelphia to Seoul, you should look to book at least 18 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Seoul
Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated November 5, 2026.
See what other customers who have flown with Korean Air,Asiana Airlines, andDelta from Philadelphia to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Boarding
8.5
Food
8.1
Entertainment
8.2
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Related info for your journey
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Top 6 airlines flying from Philadelphia to Seoul
Discover the top 6 airlines that operate flights from Philadelphia to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$738 | Average$1,169 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$808 | Average$1,233 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$845 | Average$1,425 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$845 | Average$1,083 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$915 | Average$1,228 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,129 | Average$1,376 | FlexibilityNo cancel fee | On-time81% |