IAD - YQY

$992 Find Cheap Flights from Washington, D.C. to Sydney - Compare and Save

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Everything you should know

Cheapest round-trip
$992
Typical prices: $729-$1,149
Air Canada
Sun 1/7Tue 1/9
IAD - YQY • 2 stops
Top layover airports
Montreal Pierre Elliott Trudeau Intl (YUL)
Cheapest • Avg $1,016 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 7h 03m (one-way)
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Cheap Flights from Washington, D.C. to Sydney (IAD-YQY)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Sydney

Thu, Jan 7 - Sat, Jan 9
Air Canada Logo
9:55 am - 11:20 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
24h 25m1 stop Toronto Pearson Intl
Air Canada Logo
5:45 am - 3:45 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
11h 00m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$992Air Canada
Thu, Jan 7 - Sat, Jan 9
Air Canada Logo
5:37 pm - 11:20 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
16h 43m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
5:45 am - 3:45 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
11h 00m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,008Air Canada
Thu, Jan 7 - Sat, Jan 9
Air Canada Logo
5:37 pm - 11:20 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
16h 43m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
5:45 am - 3:45 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
11h 00m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,028Air Canada
Mon, Dec 14 - Mon, Dec 21
Air Canada Logo
10:10 pm - 11:20 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
12h 10m1 stop Toronto Pearson Intl
Air Canada Logo
12:00 pm - 8:10 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
9h 10m1 stop Toronto Pearson Intl
$1,056Air Canada
Mon, Dec 14 - Mon, Dec 21
Air Canada Logo
1:19 pm - 12:15 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
9h 56m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
12:00 pm - 8:10 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
9h 10m1 stop Toronto Pearson Intl
$1,163Air Canada
Mon, Dec 14 - Mon, Dec 21
Air Canada Logo
1:19 pm - 12:15 amIAD  Washington, D.C. Dulles Intl-YQY Sydney
9h 56m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
12:00 pm - 8:23 pmYQY  Sydney-IAD Washington, D.C. Dulles Intl
9h 23m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$1,302Air Canada
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Sydney flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Sydney?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Sydney typically range from $729 to $1,149. The lowest price found in the past 5 days was $992, on Air Canada.

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Key details for Washington, D.C. Dulles Intl Airport to Sydney flights

Cheapest flight

$992
Round-trip flight from Washington, D.C. Dulles Intl Airport to Sydney

When to book flights from Washington, D.C. to Sydney

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. Dulles Intl Airport to Sydney flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Sydney?

    Only Economy Class is available on flights from Washington, D.C. Dulles Intl Airport to Sydney.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Sydney?

    There are currently no nonstop flights available from Washington, D.C. Dulles Intl Airport to Sydney. Flights with 1 layover take between 5h 35m and 7h 03m in total, depending on the connection.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Sydney?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Washington, D.C. Dulles Intl Airport to Sydney changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $992 to $1,302. That means the highest observed fare was about 31% higher than the lowest one.

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Sydney?

    Flights from Washington, D.C. Dulles Intl Airport to Sydney usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Sydney (YQY).

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Sydney pass through?

    Connecting flights from Washington, D.C. Dulles Intl Airport to Sydney most commonly pass through:

    • Montreal Pierre Elliott Trudeau Intl (YUL) - 67% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 33% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Sydney?

    Yes. Flexible dates can save you up to 40% on flights from Washington, D.C. Dulles Intl Airport to Sydney. Tuesday is the cheapest departure day at $729 round-trip on average, while Wednesday is the most expensive at $1,205, a difference of $476.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Washington, D.C. Dulles Intl Airport to Sydney?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 5h 35m, compared with 7h 03m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Sydney?

    Sydney is 1 hour ahead of Washington, D.C. Dulles Intl Airport (Atlantic Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Washington, D.C. Dulles Intl Airport to Sydney flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average $729, about $476 less than Wednesday fares (40% savings) based on the last 12 months.

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