
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $786 (American Airlines) |
One-way from | $435 (Kiwi.com) |
Popular in | January |
Cheapest in | November |
Average price | $996 |
Good round-trip deal | $1,198 or less |
Good one-way deal | $801 or less |
Fly from
Fly to
Route
Depart
Return
Price
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Sun 2/22
8:35 pm-5:40 am
1 stop23h 05m
Washington, D.C. Dulles Intl
Sun 3/1
7:05 am-6:35 pm
1 stop21h 30m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Mon 2/23
8:35 pm-5:40 am
1 stop23h 05m
Washington, D.C. Dulles Intl
Tue 3/3
6:20 pm-6:35 pm
2 stops34h 15m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Fri 4/24
7:35 pm-5:50 am
1 stop23h 15m
Washington, D.C. Dulles Intl
Sat 4/25
9:00 am-5:30 pm
1 stop19h 30m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Mon 2/23
8:35 pm-5:20 pm
1 stop34h 45m
Washington, D.C. Dulles Intl
Thu 3/5
7:05 am-6:35 pm
1 stop21h 30m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Mon 4/13
8:35 pm-5:40 am
1 stop22h 05m
Washington, D.C. Dulles Intl
Thu 4/23
9:00 am-5:30 pm
1 stop19h 30m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Tue 4/28
4:50 pm-10:18 pm
1 stop18h 28m
Washington, D.C. Dulles Intl
Sat 5/9
10:35 pm-3:00 pm
2 stops27h 25m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Fri 4/24
4:50 pm-5:28 am
2 stops25h 38m
Washington, D.C. Dulles Intl
Sat 4/25
5:55 pm-3:00 pm
1 stop32h 05m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Mon 5/18
7:35 pm-4:33 pm
1 stop33h 58m
Washington, D.C. Dulles Intl
Mon 6/29
6:55 pm-5:30 pm
2 stops57h 35m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Wed 7/1
11:30 am-1:17 am
1 stop26h 47m
Washington, D.C. Dulles Intl
Wed 7/29
6:30 am-3:00 pm
1 stop19h 30m
IncheonWashington, D.C.
ICN - IAD
ICNIAD
Incheon Intl
Sun 4/19
6:00 pm-8:56 am
3 stops27h 56m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 31 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.
Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $1,434). 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.
When flying from Incheon Intl Airport to Washington, D.C. Dulles 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.
About 15% of weekly flights between Incheon and Washington, D.C. have experienced delays in the past year, with the average delay time being 123 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Thursday 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.
Over the last year, Korean Air have had the lowest number of delays on this route, with just 15% of flights being delayed.
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Comfort
Overall
Boarding
Entertainment
Food
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$501 | Average$783 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$512 | Average$731 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$727 | Average$965 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,128 | Average$1,514 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,254 | Average$1,609 | FlexibilityNo cancel fee | On-timeN/A |