Washington (IAD) → Sydney (SYD)

15,681 km
20h 6m flight
From $1990
Sydney destination photo

About Washington to Sydney Flights

Discover the best flights from Washington to Sydney, covering 15,681 km in approximately 20h 6m. Washington (IAD) to Sydney (SYD) is one of the major long-haul routes connecting United States and Australia. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Washington to Sydney.

12-Month Price History

Flight prices from Washington to Sydney vary significantly throughout the year. February typically offers the best deals with average prices around $2761, while July sees the highest prices, averaging $4561. Savvy travelers can save up to 39% by choosing their travel dates wisely.

Best Time to Fly

Cheapest Month

February

Save up to 40% on average

Most Expensive

July

Peak season pricing

Book in Advance

69 days

For best prices

Booking Tips

For the best prices on Washington to Sydney flights, we recommend booking 71 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.

Airlines Serving This Route

Virgin Australia

VA

Economy

$2720

Business

$11460

First

$18580

United Airlines

UA

Economy

$2730

Business

$10920

First

$17610

Delta Air Lines

DL

Economy

$2870

Business

$11180

First

$17830

Qantas

QF

Economy

$2970

Business

$12360

First

$18140

Jetstar Airways

JQ

Economy

$3140

Business

$9410

First

$19910

British Airways

BA

Economy

$3290

Business

$11770

First

$20810

American Airlines

AA

Economy

$3590

Business

$10600

First

$16190

Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.

Alternative Flight Options

Sydney destination photo

WashingtonSydney

Ronald Reagan Washington National (DCA) to Sydney Kingsford Smith (SYD)

Distance: 15,715 km

Average price: $3194

View this route →

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Frequently Asked Questions

How long is the flight from Washington to Sydney?

The flight time from Washington (IAD) to Sydney (SYD) is approximately 20 hours and 6 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.

What is the distance between Washington and Sydney?

The aerial distance between Washington and Sydney is 15,681 kilometers (9,744 miles). This is the straight-line distance, which is used to calculate flight times.

Which airlines fly from Washington to Sydney?

Several airlines operate flights between Washington and Sydney, including United Airlines, Qantas, Jetstar Airways and 4 more airlines. Most flights on this route include one or more stops.

What is the cheapest month to fly from Washington to Sydney?

Based on historical data, February typically offers the lowest airfares for flights from Washington to Sydney. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.

How far in advance should I book my flight to Sydney?

For the best prices on Washington to Sydney flights, we recommend booking 80 days in advance. International flights generally require earlier booking than domestic routes.

Do I need a visa to travel from Washington to Sydney?

Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Australia should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.

What is the time difference between Washington and Sydney?

Washington operates on America/New_York time zone, while Sydney is in the Australia/Sydney time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.