Cheap flights from Washington, D.C. to Sydney from $664
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Sydney departing on 19/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Qantas Airways flights from Washington, D.C. to Sydney
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American Airlines flights from Washington, D.C. to Sydney
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How to get the cheapest flight ticket from Washington, D.C. to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Washington, D.C. and Sydney?
What is the cheapest month to fly to Sydney?
The month of February is, on average, the cheapest month to fly to Sydney from Washington, D.C., with most prices found around $1,405. If you aren’t able to travel to Sydney during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,429.
What is the cheapest day to depart on your flight to Sydney?
Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,122. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,369.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Washington, D.C. to Sydney in the morning for as low as $2,150. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,982 on average. Flights to Sydney from Washington, D.C. in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.
How far in advance should I book a flight to Sydney?
You are more likely to see cheaper flights to Sydney from Washington, D.C. when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,985 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Washington, D.C. for as low as $1,691 on momondo.
Can stopping save me money on Washington, D.C. to Sydney flights?
You could potentially save up to 9% on your flight if you consider stops on a Washington, D.C. to Sydney flight.
How have Washington, D.C. to Sydney flight prices changed over time?
As of June 2025, prices for Washington, D.C. to Sydney flights are approximately 60% cheaper when compared to flights at the same time last year.
When to book flights from Washington, D.C. to Sydney
Cheap Washington, D.C. to Sydney (WAS to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Sydney
How far is Washington, D.C. to Sydney Kingsford Smith by plane?
Washington, D.C. and Sydney Kingsford Smith are 15700.1 km apart from one another. By plane, this route typically takes 21h 28m.
When did momondo last update prices for flights from Washington, D.C. to Sydney Kingsford Smith Airport?
Prices for flights from Washington, D.C. to Sydney Kingsford Smith Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Sydney Kingsford Smith Airport?
As of June 2025, there are 2 operators available to choose from for flights from Washington, D.C. to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Washington, D.C. to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Washington, D.C. to Sydney?
Based on momondo bookings for flights between Washington, D.C. and Sydney, the leading airline is American Airlines, making up 100% of the total bookings.
Best airlines flying from Washington, D.C. to Sydney
Compare and see reviews for airlines that fly from Washington, D.C. to Sydney with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,845 | Free cancellation | Rating 7.1 9,544 reviews | |||
| PriceFrom $2,209 | Free cancellation | Rating 7.4 8,793 reviews |
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Why should I use momondo to find a flight deal from Washington, D.C. to Sydney?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Sydney for you.
Can I find flights from Washington, D.C. to Sydney with flexible booking policies on momondo?
Flights from Washington, D.C. to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Washington, D.C. to Sydney?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Washington, D.C..
I’m not ready to book a flight from Washington, D.C. to Sydney right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.