$380+ Cheap flights from Seoul (SEL) to Dulles Intl (IAD)
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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — IAD
Nov 30 — Dec 71
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to Dulles Intl with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seoul to Dulles Intl
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Best
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One-way
Cheapest flights from Seoul to Dulles IntlExplore the most affordable flight options available from Seoul to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
Explore the most affordable flight options available from Seoul to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/167:45 pm -
3 stops33h 28m
Sun 2/711:35 pm -
Nonstop15h 50m
Deal found 10/29![Multiple Airlines logo]()
$862
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/147:45 pm -
2 stops29h 26m
Sun 2/711:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$863
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/197:45 pm -
2 stops48h 22m
Sun 2/711:35 pm -
Nonstop15h 50m
Deal found 10/29![Multiple Airlines logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/158:40 pm -
3 stops28h 31m
Wed 2/1011:35 pm -
Nonstop15h 50m
Deal found 10/29![Multiple Airlines logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/151:10 pm -
1 stop19h 20m
Sun 2/711:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$893
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/251:10 pm -
1 stop19h 20m
Thu 1/2110:57 pm -
2 stops39h 58m
Deal found 10/29![Multiple Airlines logo]()
$897
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/251:10 pm -
1 stop19h 20m
Fri 1/2211:35 pm -
Nonstop15h 50m
Deal found 10/29![Multiple Airlines logo]()
$898
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/137:45 pm -
2 stops33h 04m
Sun 2/711:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$912
Best flights from Seoul to Dulles IntlDiscover carefully curated flight deals from Seoul to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
Discover carefully curated flight deals from Seoul to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 3/246:00 pm -
1 stop26h 25m
Thu 4/1510:10 pm -
2 stops27h 50m
Deal found 10/30![United Airlines logo]()
$1,160
This EVA Air deal was found by Cheapflights users on 10/30. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:45 pm -
1 stop39h 10m
Mon 12/711:55 pm -
1 stop20h 35m
Deal found 10/30![EVA Air logo]()
$1,393
This Turkish Airlines deal was found by Cheapflights users on 10/30. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2712:05 am -
1 stop33h 20m
Sun 1/311:30 pm -
1 stop38h 50m
Deal found 10/30![Turkish Airlines logo]()
$1,463
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 11/256:30 pm -
1 stop16h 57m
Sun 12/610:19 pm -
1 stop27h 56m
Deal found 10/30![United Airlines logo]()
$1,169
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/2112:45 pm -
1 stop33h 25m
Fri 1/16:00 am -
1 stop20h 15m
Deal found 10/27![United Airlines logo]()
$1,185
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/1812:45 pm -
2 stops26h 14m
Mon 1/42:35 pm -
2 stops25h 05m
Deal found 10/30![United Airlines logo]()
$1,185
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/66:30 pm -
1 stop18h 24m
Fri 12/116:15 am -
1 stop20h 00m
Deal found 10/28![United Airlines logo]()
$1,285
Last-minute flights from Seoul to Dulles IntlDiscover last-minute flight deals from Seoul to Dulles Intl. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Dulles Intl. Data last updated October 31, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 10/28. 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.
Fri 10/306:00 pm -
1 stop26h 03m
Sun 11/16:10 am -
1 stop20h 15m
Deal found 10/28![Asiana Airlines logo]()
$928
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 10/317:00 pm -
2 stops52h 00m
Wed 11/2511:35 pm -
Nonstop15h 50m
Deal found 10/27![Multiple Airlines logo]()
$1,017
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/17:15 pm -
2 stops51h 45m
Fri 11/2711:35 pm -
Nonstop15h 50m
Deal found 10/27![Multiple Airlines logo]()
$997
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/27:15 pm -
2 stops51h 45m
Wed 11/2511:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,000
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/22:20 am -
3 stops44h 40m
Wed 11/2511:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,046
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/57:15 pm -
2 stops51h 45m
Wed 11/2511:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,026
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/59:50 pm -
3 stops49h 10m
Fri 11/2711:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,033
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/611:10 am -
3 stops38h 26m
Fri 11/2711:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,044
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/148:40 pm -
2 stops27h 59m
Wed 11/1811:35 pm -
Nonstop15h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,049
This flugladen.de deal was found by Cheapflights users on 10/26. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:55 pm -
1 stop34h 35m
Sun 12/611:35 pm -
Nonstop15h 50m
Deal found 10/26![Multiple Airlines logo]()
$935
This WhyPayMore deal was found by Cheapflights users on 10/30. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:30 pm -
1 stop40h 00m
Mon 12/711:35 pm -
Nonstop15h 50m
Deal found 10/30![Multiple Airlines logo]()
$953
One-way flights from Seoul to Dulles IntlSearch for one-way flight options from Seoul to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
Search for one-way flight options from Seoul to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:10 pm -
1 stop19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Air China logo]()
$380
This Justfly.com deal was found by Cheapflights users on 10/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:10 pm -
1 stop19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Air China logo]()
$385
This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/79:55 pm -
1 stop34h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Air China logo]()
$388
This Air China deal was found by Cheapflights users on 10/26. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:55 pm -
1 stop34h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Air China logo]()
$399
This SmartFares deal was found by Cheapflights users on 10/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/175:50 pm -
1 stop38h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Air China logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/77:45 pm -
3 stops53h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/127:45 pm -
3 stops33h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$487
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/117:45 pm -
3 stops35h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/97:45 pm -
3 stops38h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/137:45 pm -
3 stops53h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/147:45 pm -
3 stops29h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$516
Find flight deals from Seoul to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Dulles Intl (IAD). 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 October 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $862 (Kiwi.com) |
One-way from | $380 (SmartFares) |
Popular in | August |
Cheapest in | November |
Average price | $1,262 |
Good round-trip deal | $1,003 or less |
Good one-way deal | $700 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul to Dulles Intl 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 October 31, 2026.
Use the filters below to find and compare flights from Seoul to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Wed 11/25
6:00 pm-7:03 am
1 stop27h 03m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$717
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Wed 11/11
6:00 pm-5:35 am
1 stop25h 35m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$717
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Sun 12/6
12:45 pm-7:28 am
1 stop32h 43m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$726
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Mon 11/16
6:00 pm-11:52 am
2 stops31h 52m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$727
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Mon 3/15
6:00 pm-11:52 am
2 stops30h 52m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$727
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Sun 11/22
6:30 pm-7:20 am
1 stop26h 50m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$729
Quickest round-trip
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Sun 11/8
8:00 pm-5:44 am
1 stop23h 44m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$734
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Fri 12/4
12:20 am-3:55 pm
1 stop29h 35m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$905
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Wed 3/24
6:00 pm-7:25 am
1 stop26h 25m
Washington, D.C. Dulles Intl
Thu 4/15
10:10 pm-3:00 pm
2 stops27h 50m
$1,160
IncheonWashington, D.C.
ICN Incheon Intl - IAD Washington, D.C. Dulles Intl
ICNIAD
Incheon Intl
Wed 11/25
6:30 pm-9:27 pm
1 stop16h 57m
Washington, D.C. Dulles Intl
Sun 12/6
10:19 pm-4:15 pm
1 stop27h 56m
$1,169
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Seoul to Dulles Intl
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 Seoul to Dulles Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seoul-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seoul-Washington, D.C. Dulles Intl Airport 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 Seoul-Washington, D.C. Dulles Intl Airport 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 Seoul to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Seoul with our price prediction graph.
SEL-IAD
ICN-IAD
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 Seoul to Washington, D.C. Dulles Intl Airport
SEL-IAD
ICN-IAD
What is the cheapest month to book a flight from Seoul to Washington, D.C. Dulles Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Dulles Intl Airport (average of $1,224). Flying from Seoul to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $1,775). 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.
What is the cheapest time of day to fly from SEL to IAD?
Find hourly flight availability from Seoul to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to Washington, D.C. Dulles Intl Airport as you normally would.
How much does it cost to fly round-trip from Seoul to Washington, D.C. Dulles Intl Airport?
Airfare is typical for this route at the moment.
Seoul to Washington, D.C. Dulles Intl Airport flights typically cost between $492 and $1,171 in December.The cheapest round-trip price found within the last 5 days was $862 on Multiple Airlines (Dec 16-Feb 10).
How far ahead should I book a flight from Seoul to Washington, D.C. Dulles Intl Airport?
Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated October 31, 2026.
Get a feel of what it's like to fly with Korean Air,AIR PREMIA, andDelta from Seoul to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.2
Crew
8.7
Comfort
8.3
Boarding
8.5
Food
8.1
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Crew
8.7
Comfort
8.3
Boarding
8.5
Food
8.1
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Crew
8.7
Comfort
8.3
Boarding
8.5
Food
8.1
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Crew
8.7
Comfort
8.3
Boarding
8.5
Food
8.1
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Entertainment
8.2
Crew
8.7
Comfort
8.3
Boarding
8.5
Food
8.1
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from Seoul to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Chantilly
Woodbridge
Arlington
Owings Mills
Sterling
Lanham
Reston
Herndon
Hyattsville
Rockville
Springfield
Fredericksburg
Tysons
Falls Church
Towson
Silver Spring
Oxon Hill
Laurel
Clinton
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Top 4 airlines flying from Seoul to Dulles Intl
Discover the top 4 airlines that operate flights from Seoul to Dulles Intl. 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 October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$490 | Average$644 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$876 | Average$1,207 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,257 | Average$1,691 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,297 | Average$2,141 | FlexibilityNo cancel fee | On-timeN/A |