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 | $588 (Expedia) |
One-way from | $242 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $716 |
Good round-trip deal | $806 or less |
Good one-way deal | $639 or less |
Fly from
Fly to
Route
Depart
Return
Price
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
Fri 4/3
8:20 pm-9:30 am
1 stop31h 10m
Vienna Intl
Sat 4/11
8:00 pm-4:50 pm
1 stop26h 50m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Tue 3/17
10:15 pm-5:30 pm
1 stop14h 15m
Vienna Intl
Thu 3/26
7:05 pm-12:45 pm
1 stop22h 40m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Tue 4/7
1:20 pm-9:05 am
1 stop13h 45m
Vienna Intl
Tue 4/14
1:50 pm-7:50 pm
1 stop36h 00m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Mon 3/30
8:20 pm-7:20 pm
1 stop17h 00m
Vienna Intl
Sat 4/4
7:05 am-4:50 pm
2 stops15h 45m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sun 3/8
1:19 pm-11:25 am
2 stops17h 06m
Vienna Intl
Tue 3/24
6:50 am-5:05 pm
1 stop15h 15m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Tue 7/14
4:30 pm-4:25 pm
2 stops17h 55m
Vienna Intl
Thu 9/3
6:35 am-2:40 pm
1 stop14h 05m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Tue 7/14
4:30 pm-10:30 am
1 stop12h 00m
Vienna Intl
Mon 8/31
12:45 pm-2:40 pm
2 stops31h 55m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sun 3/15
7:20 pm-10:55 am
2 stops34h 35m
Vienna Intl
Mon 3/23
7:15 pm-4:35 pm
2 stops26h 20m
Washington, D.C.Vienna
IAD - VIE
IADVIE
Washington, D.C. Dulles Intl
Sun 3/8
7:00 pm-8:30 am
Nonstop8h 30m
Vienna Intl
Sun 3/15
9:00 am-4:50 pm
1 stop12h 50m
| 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 Accuracy2 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 $858). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Vienna as you normally would.
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.
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Anonymous,Dec 2025
VIE - DXB
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$413 | Average$496 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$802 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$565 | Average$699 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$697 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$597 | Average$1,135 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$627 | Average$1,081 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$654 | Average$800 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$694 | Average$934 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$919 | Average$1,160 | FlexibilityNo cancel fee | On-timeN/A |