Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate between terminals.
Round-trip from | $1,093 (Air Canada) |
---|---|
One-way from | $441 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $2,094 |
Good round-trip deal | $1,027 or less |
Good one-way deal | $491 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Fri 12/12
9:00 am-6:25 pm
1 stop19h 25m
Incheon Intl
Sat 12/27
8:10 pm-11:01 am
2 stops28h 51m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sat 9/13
9:00 am-6:35 pm
1 stop20h 35m
Incheon Intl
Fri 9/26
8:35 pm-7:33 am
1 stop23h 58m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sun 9/14
9:00 am-6:35 pm
1 stop20h 35m
Incheon Intl
Sun 9/21
8:35 pm-7:33 am
1 stop23h 58m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sat 11/22
9:10 pm-9:05 am
1 stop21h 55m
Incheon Intl
Sun 12/7
12:10 am-7:15 pm
1 stop33h 05m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 8/25
6:45 pm-12:30 pm
3 stops28h 45m
Incheon Intl
Mon 9/15
8:45 pm-9:38 am
2 stops25h 53m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Fri 9/12
6:45 pm-7:40 pm
1 stop35h 55m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Wed 8/27
6:45 pm-9:35 pm
2 stops37h 50m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Tue 8/26
1:30 pm-5:40 pm
1 stop39h 10m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sun 9/28
9:35 am-4:05 pm
2 stops41h 30m
Booking 28 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.
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $998). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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.
It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in the evening. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from IAD to ICN are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Istanbul (IST) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport on Cheapflights.
Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $984.
Flights via Beijing (PEK) have the shortest average one-way travel time for 1-stop routes: 6h 40m.
Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 2h 46m.
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Jonathan,Jul 2025
SEA - BOS
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$367 | Average$1,896 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$591 | Average$747 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$759 | Average$1,530 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$800 | Average$997 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$864 | Average$1,185 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$876 | Average$1,265 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$1,535 | Average$1,877 | FlexibilityNo cancel fee | On-time81% | |
Cheapest$1,575 | Average$2,097 | FlexibilityNo cancel fee | On-timeN/A |