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 | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $592 (KAYAK) |
One-way from | $265 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $699 |
Good round-trip deal | $721 or less |
Good one-way deal | $543 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 1/19
4:50 pm-7:25 pm
1 stop20h 35m
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 11/10
8:30 pm-7:25 pm
1 stop16h 55m
Vienna Intl
Mon 11/24
7:20 am-7:08 pm
2 stops17h 48m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sun 2/1
12:30 pm-9:35 am
2 stops15h 05m
Vienna Intl
Sun 2/15
10:15 am-7:12 pm
2 stops14h 57m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Wed 11/19
12:11 pm-7:20 pm
2 stops25h 09m
Vienna Intl
Wed 12/3
10:15 am-7:19 pm
2 stops15h 04m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 12/8
12:19 pm-7:25 pm
2 stops25h 06m
Vienna Intl
Wed 12/17
8:25 pm-5:15 pm
2 stops26h 50m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Thu 12/11
12:19 pm-9:35 am
2 stops15h 16m
Vienna Intl
Thu 12/18
10:15 am-7:19 pm
2 stops15h 04m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sat 3/7
8:30 pm-7:25 pm
1 stop16h 55m
Vienna Intl
Fri 3/13
8:20 pm-7:50 pm
2 stops28h 30m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Fri 3/13
12:30 pm-7:20 pm
2 stops25h 50m
Vienna Intl
Sun 3/22
8:20 pm-6:15 pm
2 stops26h 55m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Fri 3/13
12:30 pm-7:20 pm
2 stops25h 50m
Vienna Intl
Fri 3/20
8:20 pm-7:50 pm
2 stops28h 30m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 3/9
7:20 pm-12:20 pm
1 stop12h 00m
Vienna Intl
Fri 3/20
10:35 am-3:40 pm
Nonstop10h 05m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
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 89 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 $490). Flying from Washington, D.C. Dulles Intl Airport to Vienna in June is currently the most expensive (average of $930). 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 40% 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.
Flights via Lisbon (LIS) have the shortest average one-way travel time for 1-stop routes: 13h 02m.
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.
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
Crew
Comfort
Overall
Food
Entertainment
Boarding
Reviews
Andrew,Sep 2025
FLR - VIE
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$402 | Average$495 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$561 | Average$727 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$565 | Average$699 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$584 | Average$868 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$598 | Average$1,164 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$625 | Average$1,097 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$694 | Average$934 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$919 | Average$1,178 | FlexibilityNo cancel fee | On-timeN/A |