
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $854 (United Airlines) |
One-way from | $403 (Aunt Betty) |
Popular in | December |
Cheapest in | August |
Average price | $1,449 |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Mon 12/29
10:05 pm-9:05 am
1 stop43h 00m
Sydney Kingsford Smith
Mon 2/2
2:00 pm-7:35 pm
1 stop21h 35m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sat 12/6
12:30 pm-8:30 am
2 stops28h 00m
Sydney Kingsford Smith
Sat 12/13
10:40 am-9:29 pm
2 stops26h 49m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sat 11/1
3:00 pm-7:30 am
2 stops25h 30m
Sydney Kingsford Smith
Sat 11/8
10:40 am-11:00 pm
2 stops28h 20m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 11/20
11:05 am-8:30 am
2 stops29h 25m
Sydney Kingsford Smith
Fri 11/28
10:40 am-11:58 pm
2 stops29h 18m
Washington, D.C.Sydney
DCA - SYD
DCASYD
Washington, D.C. Reagan-National
Thu 12/4
1:42 pm-8:30 am
2 stops26h 48m
Sydney Kingsford Smith
Sat 1/17
10:40 am-3:51 pm
1 stop21h 11m
Washington, D.C.Sydney
DCA - SYD
DCASYD
Washington, D.C. Reagan-National
Thu 11/20
9:34 am-8:30 am
2 stops30h 56m
Sydney Kingsford Smith
Fri 11/28
10:40 am-3:46 pm
1 stop21h 06m
Washington, D.C.Sydney
DCA - SYD
DCASYD
Washington, D.C. Reagan-National
Fri 12/5
8:35 am-9:00 am
1 stop32h 25m
Sydney Kingsford Smith
Wed 1/14
11:20 am-8:00 pm
1 stop24h 40m
Washington, D.C.Sydney
DCA - SYD
DCASYD
Washington, D.C. Reagan-National
Wed 12/10
10:30 am-6:20 am
2 stops27h 50m
Sydney Kingsford Smith
Wed 12/31
11:50 am-8:46 pm
1 stop24h 56m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 1/1
12:35 pm-6:20 am
1 stop25h 45m
Sydney Kingsford Smith
Thu 1/22
12:10 pm-4:30 pm
1 stop20h 20m
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 11/20
6:00 am-7:00 am
1 stop33h 00m
Sydney Kingsford Smith
Fri 11/28
11:50 am-8:51 pm
1 stop25h 01m
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $137). Flying from Washington, D.C. to Sydney in October is currently the most expensive (average of $839). 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.
It’s optimal to fly from Washington, D.C. to Sydney at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the evening.
Travelers seeking maximum savings on their Washington, D.C. to Sydney flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Doha (DOH) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. to Sydney on Cheapflights.
San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $1,661.
Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 22h 10m.
Flights via Doha (DOH) offer the fastest connection on this route, with an average layover time of 7h 55m.
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
Overall
Crew
Comfort
Boarding
Food
Entertainment
Reviews
Matthew,Oct 2025
GSP - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$276 | Average$1,085 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$346 | Average$1,646 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$787 | Average$1,263 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$830 | Average$1,078 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$854 | Average$1,319 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,289 | Average$1,786 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,370 | Average$1,586 | FlexibilityNo cancel fee | On-time80% |