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Cheap Flights from Washington D.C. to Sydney

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Compare Washington Dulles to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from Washington Dulles to Sydney

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Sydney? Find the lowest prices on one-way and return tickets right here.
Sydney.$1,607 per passenger.Departing Tue, 2 Sep, returning Tue, 21 Oct.Return flight with ANA (All Nippon Airways).Outbound indirect flight with ANA (All Nippon Airways), departs from Washington Dulles on Tue, 2 Sep, arriving in Sydney.Inbound indirect flight with ANA (All Nippon Airways), departs from Sydney on Tue, 21 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,607, select.
Sydney.$1,673 per passenger.Departing Thu, 5 Jun, returning Thu, 12 Jun.Return flight with Frontier Airlines and Jetstar.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 5 Jun, arriving in Sydney.Inbound indirect flight with Jetstar, departs from Sydney on Thu, 12 Jun, arriving in Washington Dulles.Price includes taxes and charges.From $1,673, select.
Sydney.$1,876 per passenger.Departing Wed, 5 Nov, returning Thu, 13 Nov.Return flight with United and Fiji Airways.Outbound indirect flight with United, departs from Washington Dulles on Wed, 5 Nov, arriving in Sydney.Inbound indirect flight with Fiji Airways, departs from Sydney on Thu, 13 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,876, select.
Sydney.$1,953 per passenger.Departing Wed, 14 May, returning Wed, 28 May.Return flight with Frontier Airlines and Qantas.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 14 May, arriving in Sydney.Inbound indirect flight with Qantas, departs from Sydney on Wed, 28 May, arriving in Washington Dulles.Price includes taxes and charges.From $1,953, select.
Sydney.$1,973 per passenger.Departing Fri, 10 Oct, returning Sat, 25 Oct.Return flight with Air New Zealand.Outbound indirect flight with Air New Zealand, departs from Washington Dulles on Fri, 10 Oct, arriving in Sydney.Inbound indirect flight with Air New Zealand, departs from Sydney on Sat, 25 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,973, select.
Sydney.$1,991 per passenger.Departing Tue, 27 May, returning Wed, 11 Jun.Return flight with Alaska Airlines and Fiji Airways.Outbound indirect flight with Alaska Airlines, departs from Washington Dulles on Tue, 27 May, arriving in Sydney.Inbound indirect flight with Fiji Airways, departs from Sydney on Wed, 11 Jun, arriving in Washington Dulles.Price includes taxes and charges.From $1,991, select.
Sydney.$2,053 per passenger.Departing Fri, 13 Jun, returning Fri, 4 Jul.Return flight with United and Fiji Airways.Outbound indirect flight with United, departs from Washington Dulles on Fri, 13 Jun, arriving in Sydney.Inbound indirect flight with Fiji Airways, departs from Sydney on Fri, 4 Jul, arriving in Washington Dulles.Price includes taxes and charges.From $2,053, select.
Sydney.$2,085 per passenger.Departing Sun, 1 Feb, returning Sun, 15 Feb.Return flight with ANA (All Nippon Airways).Outbound indirect flight with ANA (All Nippon Airways), departs from Washington Dulles on Sun, 1 Feb, arriving in Sydney.Inbound indirect flight with ANA (All Nippon Airways), departs from Sydney on Sun, 15 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $2,085, select.

Find the cheapest month to fly from Washington Dulles to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Sydney flights are currently cheapest in June.
Apr
Find prices
May
from $1,953
Jun
from $1,673
Jul
from $2,274
Aug
from $2,292
Sep
from $2,133
Oct
from $1,973
Nov
from $1,876
Dec
from $2,551
Jan
from $2,314
Feb
from $2,085
Mar
from $2,452

Washington Dulles to Sydney: Alternative routes

Compare routes from Washington Dulles to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Washington D.C. to Sydney: Flight information

The things to know before you go.
Cheapest flight found$1,607
Cheapest month to flySeptember

Finding cheap flights from Washington Dulles to Sydney: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Sydney is $1,607. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Sydney. But we found flights with one or more stops from $1,607.
As of April 2025, there are no flights flying from Washington Dulles to Sydney.
The cheapest month to fly from Washington Dulles to Sydney is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Sydney Airport on Tuesday, 2 September 2025.
No airlines currently offer direct flights between Washington Dulles Airport and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, ANA (All Nippon Airways) offers the cheapest flight tickets to Sydney.

Flying from Washington Dulles International Airport (IAD) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • Sydney is 15 hours ahead of Washington DC and is in the UTC+11 timezone.

  • Your IAD to SYD flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Travelling during a peak month such as April? Major public holidays and other popular periods can lead to longer queues and delays at airport checkpoints. Play it safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • We make it a cinch to book a flight with a stopover. To see your options for tickets from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to tour your chosen city. Worthwhile stopovers between IAD and SYD include:

    • San Francisco International Airport

    • George Bush Intercontinental Airport

    • Los Angeles International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Sydney (Kingsford Smith) Airport (SYD)

  • $752 is the lowest price for a one-way Washington Dulles International Airport to Sydney (Kingsford Smith) Airport flight. A return flight starts at $1,607. These fares may change depending on availability and demand.

  • To pick up cheap tickets from IAD to SYD, book as early as you can. Airlines typically offer lower prices when flights are first made available.

  • Getting cheap flights from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' tool to see the best prices across the month and land a great deal.

  • Landing cheap flights from IAD to SYD is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when a new discounted fare appears.

  • Pick your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport.

Handy information about Washington Dulles International Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • When it comes to Washington Dulles International Airport's on-time performance, data shows 74.39% of flights arrive within the scheduled timeframe.

  • Washington Dulles International Airport is around 56 kilometres from central Washington DC. If you're catching a cab, ride-sharing or driving from the centre, it'll take 50 minutes or so to arrive, depending on the traffic.

  • Planning to take public transport? Expect a trip time of around 3 hours 25 minutes.

  • Looking for a convenient hotel near IAD? If you're boarding an early flight from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport, these stays will put you moments from your departure lounge:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

  • From Sydney (Kingsford Smith) Airport, Sydney is approximately 18 kilometres away. It takes around 20 minutes to drive to the centre.

  • It'll take around 25 minutes if you're travelling on public transport.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

  • It's time to work out your dates for your flight from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport. April is the most popular month to visit Sydney. If you prefer a more laid-back vibe, go in April.

  • When reserving your flight from Washington Dulles International Airport to Sydney (Kingsford Smith) Airport, consider the kind of weather you like. January is the warmest month in Sydney, with the temperature ranging from 17ºC (63ºF) to 32ºC (90ºF).

  • July sees average temperatures of between 5ºC (41ºF) and 19ºC (66ºF). Search for cheap tickets from IAD to SYD sometime then if you want to travel in cooler conditions.

Explore more of Australia

  • Sydney has plenty going for it, but there are so many other corners of Australia just waiting to be explored. Around 241 kilometres south-west of Sydney, a visit to Canberra will keep your itinerary busy. Check out popular attractions like Australian War Memorial, National Gallery of Australia and Parliament House.

  • Newcastle is another standout destination in Australia and is around 121 kilometres north-east of Sydney. No journey is complete without seeing Newcastle Beach, Nobbys Beach and Merewether Beach.

Plan the rest of your trip from Washington D.C. to Sydney

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.