Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate between terminals.
Round-trip from | $1,265 (Trip.com) |
---|---|
One-way from | $592 (Gotogate) |
Popular in | June |
Cheapest in | November |
Average price | $2,214 |
Good round-trip deal | $1,046 or less |
Good one-way deal | $624 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 9/1
9:40 pm-8:40 am
1 stop22h 00m
Incheon Intl
Sun 9/21
12:35 am-8:05 pm
2 stops32h 30m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Thu 8/21
1:30 pm-8:40 am
1 stop30h 10m
Incheon Intl
Sun 8/31
11:20 pm-11:45 am
1 stop25h 25m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Tue 7/22
9:35 am-4:15 pm
1 stop17h 40m
Incheon Intl
Tue 7/29
5:45 pm-4:10 pm
2 stops35h 25m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sat 9/6
8:23 pm-11:15 am
2 stops25h 52m
Incheon Intl
Tue 9/16
12:35 pm-11:50 am
2 stops36h 15m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Wed 7/9
6:45 pm-6:45 pm
1 stop35h 00m
Incheon Intl
Thu 7/17
8:45 pm-5:54 pm
1 stop34h 09m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sat 8/23
8:19 pm-3:30 pm
2 stops30h 11m
Incheon Intl
Mon 9/1
5:25 pm-9:53 am
2 stops29h 28m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Fri 8/15
8:19 pm-7:00 pm
3 stops33h 41m
Incheon Intl
Fri 8/29
9:25 pm-4:47 pm
2 stops32h 22m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Fri 9/5
1:30 pm-5:40 pm
1 stop39h 10m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Thu 7/10
4:10 pm-6:45 pm
2 stops37h 35m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sat 8/9
9:45 am-4:15 pm
1 stop17h 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 $1,000). 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 34% 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).
In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.
If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Dale,May 2025
TPE - SFO
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$367 | Average$2,347 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$591 | Average$747 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$759 | Average$1,597 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$809 | Average$1,040 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$865 | Average$1,191 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$876 | Average$1,257 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$1,548 | Average$1,871 | FlexibilityNo cancel fee | On-time81% | |
Cheapest$1,575 | Average$2,092 | FlexibilityNo cancel fee | On-timeN/A |