$415+ Cheap flights from Dulles Intl (IAD) to Incheon Intl (ICN)
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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Incheon 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.Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Incheon Intl are usually found in October or September, booked 40 days in advance, depart on a Wednesday or Tuesday and return on a Friday
Cheap flight deals from Dulles Intl to Incheon Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to Incheon IntlExplore the most affordable flight options available from Dulles Intl to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Dulles Intl to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This Super.com deal was found by Cheapflights users on 9/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:00 pm -
1 stop28h 35m
Tue 11/1711:10 am -
1 stop21h 20m
Deal found 9/4![Air China logo]()
$953
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:20 pm -
Nonstop15h 35m
Fri 9/1810:00 am -
Nonstop13h 50m
Deal found 9/3![AIR PREMIA logo]()
$956
This Trip.com deal was found by Cheapflights users on 9/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:20 pm -
Nonstop15h 35m
Wed 9/2310:00 am -
Nonstop13h 50m
Deal found 9/6![AIR PREMIA logo]()
$958
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:00 pm -
1 stop32h 55m
Tue 11/31:10 pm -
1 stop19h 20m
Deal found 9/4![Air China logo]()
$959
This Justfly.com deal was found by Cheapflights users on 9/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:20 pm -
Nonstop15h 35m
Wed 12/99:05 pm -
Nonstop13h 30m
Deal found 9/2![AIR PREMIA logo]()
$963
This Booking.com deal was found by Cheapflights users on 9/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:35 pm -
Nonstop15h 50m
Fri 11/209:05 pm -
Nonstop13h 30m
Deal found 9/3![AIR PREMIA logo]()
$971
This Booking.com deal was found by Cheapflights users on 9/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:20 pm -
Nonstop15h 35m
Mon 10/269:05 pm -
Nonstop13h 30m
Deal found 9/3![AIR PREMIA logo]()
$972
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:20 pm -
Nonstop15h 35m
Wed 10/1410:00 am -
Nonstop13h 50m
Deal found 9/2![AIR PREMIA logo]()
$973
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:35 am -
Nonstop15h 50m
Sun 11/19:05 pm -
Nonstop13h 30m
Deal found 9/3![AIR PREMIA logo]()
$975
This SmartFares deal was found by Cheapflights users on 9/5. 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.
Wed 9/91:20 pm -
Nonstop15h 35m
Fri 9/1110:00 am -
Nonstop13h 50m
Deal found 9/5![AIR PREMIA logo]()
$976
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:20 pm -
Nonstop15h 35m
Mon 11/29:05 pm -
Nonstop13h 30m
Deal found 9/4![AIR PREMIA logo]()
$980
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:20 pm -
Nonstop15h 35m
Fri 10/910:00 am -
Nonstop13h 50m
Deal found 9/2![AIR PREMIA logo]()
$982
Best flights from Dulles Intl to Incheon IntlDiscover carefully curated flight deals from Dulles Intl to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Dulles Intl to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/6. 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 9/221:15 pm -
Nonstop15h 25m
Mon 10/510:25 am -
Nonstop13h 40m
Deal found 9/6![Delta logo]()
$1,243
This Cathay Pacific deal was found by Cheapflights users on 9/2. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
2 stops29h 40m
Fri 11/133:00 pm -
2 stops28h 38m
Deal found 9/2![Cathay Pacific logo]()
$1,270
This Korean Air deal was found by Cheapflights users on 9/4. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:50 pm -
Nonstop15h 50m
Sat 11/710:15 am -
Nonstop13h 35m
Deal found 9/4![Korean Air logo]()
$1,470
This Delta deal was found by Cheapflights users on 9/3. 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 9/221:15 pm -
Nonstop15h 25m
Mon 9/2810:25 am -
Nonstop13h 40m
Deal found 9/3![Delta logo]()
$1,243
This Cathay Pacific deal was found by Cheapflights users on 9/6. 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.
Sat 2/276:10 am -
2 stops28h 30m
Thu 3/1110:00 am -
2 stops33h 00m
Deal found 9/6![Cathay Pacific logo]()
$1,270
This Delta deal was found by Cheapflights users on 9/6. 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 11/118:00 am -
1 stop20h 20m
Thu 11/1910:15 am -
Nonstop13h 35m
Deal found 9/6![Delta logo]()
$1,248
This Korean Air deal was found by Cheapflights users on 9/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:14 am -
1 stop18h 36m
Wed 10/2110:25 am -
Nonstop13h 40m
Deal found 9/3![Korean Air logo]()
$1,475
This Delta deal was found by Cheapflights users on 9/5. 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 9/211:15 pm -
Nonstop15h 25m
Mon 11/1610:35 am -
1 stop24h 55m
Deal found 9/5![Delta logo]()
$1,253
This Cathay Pacific deal was found by Cheapflights users on 9/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/285:50 pm -
2 stops40h 50m
Tue 1/121:55 am -
2 stops35h 57m
Deal found 9/3![Cathay Pacific logo]()
$1,455
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 11/111:50 am -
Nonstop15h 50m
Thu 11/510:15 am -
Nonstop13h 35m
Deal found 9/3![Delta logo]()
$1,293
This Delta deal was found by Cheapflights users on 9/4. 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 11/258:00 am -
1 stop20h 10m
Wed 12/1610:15 am -
Nonstop13h 35m
Deal found 9/4![Delta logo]()
$1,418
Last-minute flights from Dulles Intl to Incheon IntlDiscover last-minute flight deals from Dulles Intl to Incheon Intl. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Incheon Intl. Data last updated September 7, 2026 and is based on user searches.
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:20 pm -
Nonstop15h 35m
Fri 9/1810:00 am -
Nonstop13h 50m
Deal found 9/3![AIR PREMIA logo]()
$956
This Trip.com deal was found by Cheapflights users on 9/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:20 pm -
Nonstop15h 35m
Wed 9/2310:00 am -
Nonstop13h 50m
Deal found 9/6![AIR PREMIA logo]()
$958
This SmartFares deal was found by Cheapflights users on 9/5. 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.
Wed 9/91:20 pm -
Nonstop15h 35m
Fri 9/1110:00 am -
Nonstop13h 50m
Deal found 9/5![AIR PREMIA logo]()
$976
This Justfly.com deal was found by Cheapflights users on 9/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:20 pm -
Nonstop15h 35m
Wed 12/99:05 pm -
Nonstop13h 30m
Deal found 9/2![AIR PREMIA logo]()
$963
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:20 pm -
Nonstop15h 35m
Wed 10/1410:00 am -
Nonstop13h 50m
Deal found 9/2![AIR PREMIA logo]()
$973
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:20 pm -
Nonstop15h 35m
Fri 10/910:00 am -
Nonstop13h 50m
Deal found 9/2![AIR PREMIA logo]()
$982
This Booking.com deal was found by Cheapflights users on 9/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:20 pm -
Nonstop15h 35m
Mon 10/269:05 pm -
Nonstop13h 30m
Deal found 9/3![AIR PREMIA logo]()
$972
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:20 pm -
Nonstop15h 35m
Mon 11/29:05 pm -
Nonstop13h 30m
Deal found 9/4![AIR PREMIA logo]()
$980
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:35 am -
Nonstop15h 50m
Sun 11/19:05 pm -
Nonstop13h 30m
Deal found 9/3![AIR PREMIA logo]()
$975
This Super.com deal was found by Cheapflights users on 9/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:00 pm -
1 stop28h 35m
Tue 11/1011:10 am -
1 stop21h 20m
Deal found 9/4![Air China logo]()
$953
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:00 pm -
1 stop32h 55m
Tue 11/31:10 pm -
1 stop19h 20m
Deal found 9/4![Air China logo]()
$959
One-way flights from Dulles Intl to Incheon IntlSearch for one-way flight options from Dulles Intl to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Dulles Intl to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Fri 9/1811:00 pm -
1 stop26h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Air China logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/319:06 pm -
2 stops32h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Fri 9/181:20 pm -
Nonstop15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![AIR PREMIA logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Wed 9/161:20 pm -
Nonstop15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![AIR PREMIA logo]()
$485
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:35 am -
Nonstop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![AIR PREMIA logo]()
$487
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:20 pm -
Nonstop15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![AIR PREMIA logo]()
$488
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:20 pm -
Nonstop15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![AIR PREMIA logo]()
$494
This FlightHub deal was found by Cheapflights users on 9/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:35 am -
Nonstop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![AIR PREMIA logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Fri 10/309:06 pm -
2 stops56h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$509
This KAYAK deal was found by Cheapflights users on 9/3. 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.
Mon 9/141:20 pm -
Nonstop15h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![AIR PREMIA logo]()
$512
Find flight deals from Dulles Intl to Incheon Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Incheon Intl (ICN). 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $953 (Super.com) |
One-way from | $415 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $1,266 |
Good round-trip deal | $1,075 or less |
Good one-way deal | $518 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Incheon 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 September 7, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Thu 2/25
5:50 pm-12:40 am
2 stops40h 50m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$581
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Wed 1/13
11:45 am-1:50 pm
2 stops36h 05m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$587
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Tue 9/29
4:56 pm-12:25 am
2 stops42h 29m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$633
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Sun 11/22
6:57 pm-12:45 pm
2 stops27h 48m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$641
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Sun 1/3
5:31 pm-12:40 am
2 stops41h 09m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$665
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Thu 11/12
11:50 am-5:40 pm
Nonstop15h 50m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$675
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Thu 10/1
10:30 am-4:20 am
2 stops28h 50m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$679
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Tue 10/13
7:02 am-10:25 pm
2 stops26h 23m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$732
Quickest round-trip
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Tue 10/13
1:15 pm-5:40 pm
Nonstop15h 25m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$740
Washington, D.C.Incheon
IAD Washington, D.C. Dulles Intl - ICN Incheon Intl
IADICN
Washington, D.C. Dulles Intl
Thu 12/31
1:30 pm-8:55 am
1 stop29h 25m
Incheon Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$744
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Incheon 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 Dulles Intl to Incheon Intl in September.
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Incheon 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 Washington, D.C. Dulles Intl Airport-Incheon 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 Dulles Intl to Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Dulles Intl with our price prediction graph.
IAD-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 Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $1,240). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $2,235). 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 IAD to ICN?
Find hourly flight availability from Dulles Intl to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 7, 2026.
When flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Washington, D.C. to Incheon delayed?
About 23% of weekly flights between Washington, D.C. and Incheon have experienced delays in the past year, with the average delay time being 98 minutes.
What is the most punctual flight time for Washington, D.C. to Incheon flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Washington, D.C. to Incheon flights?
Over the last year, Korean Air have had the lowest number of delays on this route, with just 25% of flights being delayed.
The best insider tips for Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Incheon Intl Airport trip
Our travel experts
Reviews of airlines servicing Incheon Intl
Get insights into the airlines that provide service to Incheon 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 Incheon Intl. Reviews last updated September 7, 2026.
Get a feel of what it's like to fly with Korean Air,AIR PREMIA, andDelta from Washington, D.C. Dulles Intl Airport to Incheon 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.
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Food
8.1
Crew
8.7
Entertainment
8.2
Comfort
8.3
Boarding
8.5
Overall
8.4
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Incheon 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 Incheon Intl Airport?
Book flights to Incheon Intl Airport if you plan to visit one of these locationsSeongnam
Suwon
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Other flights to Incheon Intl
Explore flights to Incheon Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Dulles Intl and Incheon Intl flights
Browse other Dulles Intl and Incheon Intl flight options. Last updated on September 7, 2026.
Other flights from Dulles Intl
Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
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Top 8 airlines flying from Dulles Intl to Incheon Intl
Discover the top 8 airlines that operate flights from Dulles Intl to Incheon 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$392 | Average$1,755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$685 | Average$1,378 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$687 | Average$1,616 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$784 | Average$1,275 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$816 | Average$1,592 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$875 | Average$1,266 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$929 | Average$1,109 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,314 | Average$1,789 | FlexibilityNo cancel fee | On-time81% |