
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,015 (Delta) |
One-way from | $541 (Delta) |
Popular in | December |
Cheapest in | November |
Average price | $1,620 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Wed 8/12
6:14 pm-6:50 pm
2 stops34h 36m
Sydney Kingsford Smith
Tue 8/18
8:45 pm-6:39 am
2 stops23h 54m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Fri 10/16
5:33 pm-6:50 pm
2 stops34h 17m
Sydney Kingsford Smith
Sun 11/15
9:40 pm-7:28 am
3 stops25h 48m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 7/30
6:14 pm-6:50 pm
2 stops34h 36m
Sydney Kingsford Smith
Tue 8/11
8:45 pm-5:11 pm
2 stops34h 26m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 8/27
5:44 pm-6:50 pm
3 stops35h 06m
Sydney Kingsford Smith
Tue 9/1
8:45 pm-11:59 pm
2 stops41h 14m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Mon 10/5
7:00 am-7:30 am
2 stops33h 30m
Sydney Kingsford Smith
Sat 10/10
6:50 pm-5:40 am
2 stops25h 50m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Fri 10/23
7:00 am-7:30 am
2 stops33h 30m
Sydney Kingsford Smith
Wed 10/28
9:25 pm-4:33 pm
2 stops34h 08m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 7/26
5:48 pm-7:00 am
1 stop23h 12m
Sydney Kingsford Smith
Sun 8/16
10:20 am-4:18 pm
1 stop19h 58m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Tue 11/3
10:30 am-7:00 am
1 stop28h 30m
Sydney Kingsford Smith
Fri 11/20
6:00 am-8:10 am
1 stop42h 10m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 8/30
10:55 am-6:05 am
1 stop29h 10m
Sydney Kingsford Smith
Fri 9/4
6:00 am-8:40 am
1 stop40h 40m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Wed 9/16
5:54 pm-6:50 pm
3 stops34h 56m
Sydney Kingsford Smith
Sat 9/26
8:45 pm-6:14 pm
2 stops35h 29m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Sydney, you should look to book at least 9 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 Sydney (average of $1,510). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $2,258). 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.
Los Angeles (LAX) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Sydney on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $379.
Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 9h 00m.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
Entertainment
Comfort
Boarding
Overall
Crew
Food
Reviews
Anonymous,Mar 2026
SIN - AKL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$377 | Average$1,608 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$544 | Average$943 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$719 | Average$768 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$841 | Average$1,422 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$855 | Average$1,545 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,194 | Average$1,545 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,285 | Average$1,900 | FlexibilityNo cancel fee | On-time78% |