
Round-trip from | $1,134 (Expedia) |
|---|---|
One-way from | $601 (Trip.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,363 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Nha Trang
IAD - CXR
IADCXR
Washington, D.C. Dulles Intl
Fri 9/11
1:15 am-2:05 pm
2 stops25h 50m
Nha Trang Cam Ranh
Thu 9/17
9:50 pm-10:00 pm
2 stops35h 10m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Tue 5/12
10:55 am-1:15 pm
1 stop39h 20m
Hanoi Noibai
Thu 5/21
1:15 am-8:40 am
1 stop42h 25m
Washington, D.C.Phu Quoc
IAD - PQC
IADPQC
Washington, D.C. Dulles Intl
Tue 5/19
9:00 pm-3:55 pm
2 stops31h 55m
Phu Quoc Duong Dang
Sat 5/30
11:45 am-6:20 pm
2 stops41h 35m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Sun 8/2
10:55 am-1:15 pm
1 stop39h 20m
Hanoi Noibai
Sat 8/22
1:30 am-8:40 am
1 stop42h 10m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Thu 6/4
9:00 pm-1:55 pm
1 stop29h 55m
Hanoi Noibai
Sat 6/6
1:55 am-6:20 pm
1 stop27h 25m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Thu 5/14
8:05 am-9:35 pm
2 stops26h 30m
Hanoi Noibai
Fri 6/5
12:05 pm-11:39 pm
2 stops22h 34m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Sat 8/1
10:58 am-9:35 pm
2 stops23h 37m
Hanoi Noibai
Fri 8/21
11:10 pm-4:41 pm
2 stops28h 31m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Fri 6/5
10:29 pm-10:15 pm
2 stops36h 46m
Hanoi Noibai
Fri 6/19
11:35 pm-6:58 am
2 stops42h 23m
Washington, D.C.Ho Chi Minh City
IAD - SGN
IADSGN
Washington, D.C. Dulles Intl
Fri 7/31
6:20 am-12:20 am
2 stops31h 00m
Ho Chi Minh City
Thu 8/20
7:10 am-6:27 pm
2 stops46h 17m
Washington, D.C.Hanoi
IAD - HAN
IADHAN
Washington, D.C. Dulles Intl
Fri 7/3
10:21 pm-10:15 pm
2 stops36h 54m
Hanoi Noibai
Mon 7/27
11:35 pm-5:53 am
2 stops41h 18m
The best time to book flights from Washington, D.C. Dulles Intl Airport to Vietnam is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Vietnam (average of $749). Flying from Washington, D.C. Dulles Intl Airport to Vietnam in June is currently the most expensive (average of $2,094). 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.
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Overall
Food
Crew
Entertainment
Comfort
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$443 | Average$920 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$512 | Average$1,858 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$748 | Average$1,120 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$818 | Average$1,175 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$821 | Average$1,307 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$856 | Average$1,386 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$863 | Average$1,401 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$877 | Average$1,003 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$877 | Average$1,187 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$886 | Average$1,326 | FlexibilityNo cancel fee | On-time68% |