For a smooth departure from IAD, use the Aerotrain to quickly reach your concourse, but be prepared for long walks from the train to gates.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $591 (KAYAK) |
One-way from | $249 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $1,056 |
Good round-trip deal | $824 or less |
Good one-way deal | $613 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sat 3/7
5:30 pm-11:30 am
1 stop12h 00m
Vienna Intl
Sun 3/15
7:40 pm-4:15 pm
1 stop25h 35m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 1/19
4:50 pm-9:35 am
1 stop10h 45m
Vienna Intl
Sat 1/24
7:15 am-6:50 pm
2 stops17h 35m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sun 2/1
12:23 pm-9:35 am
2 stops15h 12m
Vienna Intl
Sun 2/8
8:05 pm-5:15 pm
1 stop27h 10m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 1/12
12:23 pm-9:35 am
2 stops15h 12m
Vienna Intl
Mon 1/19
8:05 pm-7:09 pm
2 stops29h 04m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Fri 5/8
8:20 pm-7:20 pm
1 stop17h 00m
Vienna Intl
Tue 5/19
9:20 am-7:16 pm
2 stops15h 56m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Wed 5/6
8:20 pm-7:20 pm
1 stop17h 00m
Vienna Intl
Wed 5/13
7:10 am-4:50 pm
2 stops15h 40m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Wed 4/15
8:20 pm-7:20 pm
1 stop17h 00m
Vienna Intl
Thu 4/30
9:20 am-7:16 pm
2 stops15h 56m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Wed 1/21
12:23 pm-9:35 am
2 stops15h 12m
Vienna Intl
Mon 2/2
7:15 am-5:15 pm
2 stops16h 00m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 2/23
12:23 pm-9:35 am
2 stops15h 12m
Vienna Intl
Mon 3/2
7:15 am-5:15 pm
2 stops16h 00m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 3/9
1:19 pm-9:35 am
2 stops15h 16m
Vienna Intl
Mon 3/16
7:15 am-6:15 pm
2 stops16h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Vienna, you should look to book at least 39 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 Washington, D.C. Dulles Intl Airport to Vienna (average of $456). Flying from Washington, D.C. Dulles Intl Airport to Vienna in June is currently the most expensive (average of $924). 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.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 39% on flights from Washington, D.C. Dulles Intl Airport to Vienna by exploring options for tickets at noon.
Lisbon (LIS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Vienna on Cheapflights.
Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $845.
Flights via Lisbon (LIS) have the shortest average one-way travel time for 1-stop routes: 13h 02m.
Flights via Lisbon (LIS) offer the fastest connection on this route, with an average layover time of 1h 51m.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Andrew,Sep 2025
FLR - VIE
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$413 | Average$496 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$556 | Average$845 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$565 | Average$699 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$712 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$597 | Average$1,181 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$625 | Average$1,088 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$694 | Average$934 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$919 | Average$1,160 | FlexibilityNo cancel fee | On-timeN/A |