SYD - IAD

$431 Find Cheap Flights from Sydney to Washington Dulles Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$710
Typical prices: $1,099-$1,746
Delta
Sat 4/14Sat 5/5
SYD - IAD • 2 stops
Cheapest one-way
$431
Typical prices: $687-$1,237
Delta
Fri 11/23
SYD - IAD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Sydney and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
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When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 12% compared to booking last minute.
Insights
Insights
When to travel
September
Cheapest • 20% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $1,139 (round-trip)
Vancouver Intl (YVR)
Shortest trip • 22h 28m (one-way)
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Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
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Booking Insights
Flight Deals

Cheap Flights from Sydney to Dulles Intl (SYD-IAD)

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

Recent round-trip flight deals from Sydney to Dulles Intl

Wed, Apr 14 - Wed, May 5
Delta Logo
9:15 am - 6:18 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
23h 03m2 stops Los Angeles Minneapolis St Paul
Delta Logo
12:00 pm - 6:50 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 50m2 stops Minneapolis St Paul Los Angeles
$710Delta
Mon, Nov 16 - Tue, Nov 24
American Airlines Logo
11:10 am - 5:38 amSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
34h 28m1 stop Los Angeles
American Airlines Logo
6:00 am - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
35h 00m1 stop Los Angeles
$734American Airlines
Tue, Nov 17 - Wed, Nov 25
American Airlines Logo
11:10 am - 5:38 amSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
34h 28m1 stop Los Angeles
American Airlines Logo
1:24 pm - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
27h 36m2 stops Charlotte Douglas Los Angeles
$736American Airlines
Mon, Nov 23 - Mon, Dec 7
Delta Logo
10:40 am - 11:47 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
29h 07m2 stops Los Angeles Salt Lake City
Delta Logo
11:30 am - 8:30 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
29h 00m2 stops Detroit Metropolitan Wayne County Los Angeles
$740Delta
Fri, Nov 13 - Sun, Nov 22
American Airlines Logo
11:10 am - 5:38 amSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
34h 28m1 stop Los Angeles
American Airlines Logo
6:00 am - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
35h 00m1 stop Los Angeles
$784American Airlines
Fri, Feb 12 - Tue, Feb 16
American Airlines Logo
11:20 am - 10:48 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
27h 28m2 stops Los Angeles Dallas/Fort Worth
American Airlines Logo
12:46 pm - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 14m2 stops Charlotte Douglas Los Angeles
$785American Airlines
Thu, Nov 26 - Thu, Dec 3
Virgin Australia Logo
10:40 am - 5:40 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
23h 00m2 stops Los Angeles Atlanta Hartsfield-Jackson
Virgin Australia Logo
12:00 pm - 8:30 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 30m2 stops Minneapolis St Paul Los Angeles
$788Virgin Australia
Tue, Nov 10 - Thu, Nov 19
Delta Logo
10:40 am - 11:47 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
29h 07m2 stops Los Angeles Salt Lake City
Delta Logo
3:00 pm - 8:30 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
25h 30m2 stops Atlanta Hartsfield-Jackson Los Angeles
$789Delta
Wed, Apr 14 - Wed, May 5
Virgin Australia Logo
9:15 am - 11:46 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
28h 31m2 stops Los Angeles Salt Lake City
Virgin Australia Logo
12:00 pm - 6:50 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 50m2 stops Minneapolis St Paul Los Angeles
$803Virgin Australia
Fri, Feb 12 - Tue, Feb 16
American Airlines Logo
11:20 am - 11:33 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
28h 13m1 stop Los Angeles
American Airlines Logo
12:23 pm - 11:45 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 22m2 stops Dallas/Fort Worth Brisbane
$812American Airlines
Booking Insights

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

Round-trip flights from Sydney to Washington, D.C. Dulles Intl Airport typically range from $1,099 to $1,746. The lowest price found in the past 5 days was $710, on Delta.

What's the cheapest day of the week to fly from Sydney to Washington, D.C. Dulles Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Sydney to Washington, D.C. Dulles Intl Airport. It’s 21% cheaper than the average day, while Monday is the most expensive, with prices 17% higher.

What’s the cheapest month to fly from Sydney to Washington, D.C. Dulles Intl Airport?

•September is the cheapest month to fly from Sydney to Washington, D.C. Dulles Intl Airport at $1,096 round-trip.
•July ($1,742) and June ($1,616) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Sydney to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from Sydney to Washington, D.C. Dulles Intl Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 12% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

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

Low season

March

Cheapest flight

$431
Beat the crowds with an average 66% drop in travelers.
The most popular month to fly with an average 102% increase in travelers.
One-way flight from Sydney to Washington, D.C. Dulles Intl Airport

When to book flights from Sydney to Dulles Intl

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

Your Sydney to Washington, D.C. Dulles Intl Airport 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 Sydney to Washington, D.C. Dulles Intl Airport?

    Three cabin classes are available on flights from Sydney to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • Business Class
    • First Class

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

    A nonstop flight from Sydney to Washington, D.C. Dulles Intl Airport takes 00m, covering 9,737 miles.

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

    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.

  • How much should I expect to pay for a Sydney to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Sydney to Washington, D.C. Dulles Intl Airport range from $1,099 to $1,746, with an average of $1,369 over the past 12 months. Anything below $1,099 counts as a good deal.

  • How expensive are last-minute Sydney to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) are 12% below the route average of $1,369. Booking late can sometimes save you money, but inventory is limited.

  • How are flight prices from Sydney to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Sydney to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $537, which is 45% below the typical average for this route.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates averaging $70 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

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

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

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

    One-stop flights from Sydney to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • San Francisco (SFO) - 37% of one-stop connections
    • Dallas/Fort Worth (DFW) - 23% of one-stop connections
    • Los Angeles (LAX) - 17% of one-stop connections
    • Tokyo Haneda (HND) - 12% of one-stop connections

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

    Yes. Flexible dates can save you up to 33% on flights from Sydney to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at $1,089 round-trip on average, while Monday is the most expensive at $1,606, a difference of $517.

    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 Sydney to Washington, D.C. Dulles Intl Airport?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 22h 28m, compared with 22h 33m via Dallas/Fort Worth (DFW) and 22h 45m via San Francisco (SFO).

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

    Washington, D.C. Dulles Intl Airport is 15 hours behind Sydney (Eastern Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

Your guide to booking Sydney to Washington, D.C. Dulles Intl Airport 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 Thursday departure and avoid flying on Monday. On this route, Thursday flights average $1,089, about $517 less than Monday fares (32% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 12% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Sydney to Washington, D.C. Dulles Intl Airport trip for September. Fares historically average $1,096 round-trip in that month - typically $646 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Sydney to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
Vacations in Washington, D.C.