Washington DC to Sydney flights (IAD → SYD)

Looking for Washington DC to Sydney flights? Cheapest round-trip I’ve found: US$1,463 on Air Canada, 2 stop(s), departing 2027-03-01. That’s US$273 below the typical price for this route. Cheap flights from Washington DC to Sydney change daily — I re-check this route three times a day.

Deal score: Average price — cheaper than 37% of prices I’ve seen on this route.

Best months to fly Washington DC to Sydney

How to book this fare

I don’t sell tickets — I track prices and point you to where to look. To book Washington DC to Sydney flights:

1. Search Washington DC to Sydney on Google Flights for the dates shown above (Mar 2027) — the fare I found is usually still available there.
2. Compare the same dates on metasearch sites like Skyscanner or KAYAK to confirm you’re seeing the lowest price.
3. Book directly with the airline when you can — it’s often the same price and makes changes or cancellations much easier.

Fares change constantly. If the price has moved, check back — I re-check this route daily.

Other Washington DC to … flights

• Washington DC to Christchurch flights — US$1,634
• Washington DC to Perth flights — US$1,636
• Washington DC to Seoul flights — US$1,020
• Washington DC to Buenos Aires flights — US$734
• Washington DC to Tokyo Narita flights — US$1,173
• Washington DC to Sao Paulo flights — US$934
• Washington DC to Cairns flights — US$2,407
• Washington DC to Paris flights — US$687

All flights to Sydney · All flights from Washington DC

Prices last checked: 2026-09-25, 6:16:55 a.m.. Prices are indicative and change quickly — confirm on the airline site before booking. See how I find these deals.