$396 Find Cheap Flights from Washington to Australia

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Australia

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonMay
High seasonDecember
Cheapest flight$396
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Seattle to Sydney

FAQs for booking flights from Washington to Australia

  • How does KAYAK find such low prices on flights from Washington to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Australia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Australia?

    Based on KAYAK data, the cheapest day to fly to Australia is Tuesday where round-trip tickets can be as cheap as $1,078. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $1,156 on average.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally at night, when round-trip flights cost $1,078 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Australia is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,152.

  • What is the cheapest month to fly from Washington to Australia?

    The cheapest month for flights from Washington to Australia is March, when tickets cost $1,030 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $1,468 and $1,265 respectively.

  • How far in advance should I book a flight from Washington to Australia?

    To get a below average price on the flight from Washington to Australia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

  • How long is the flight to Australia?

    An average nonstop flight from Washington to Australia takes 27h 37m, covering a distance of 7915 miles. The shortest route is Seattle (SEA) to Sydney (SYD) with an average flight time of 18h 30m.

  • What are the most popular destinations in Australia?

    Based on KAYAK flight searches, the most popular destination is Sydney (52% of total searches to Australia). The next most popular destinations are Melbourne (29%) and Brisbane (8%). Searches for flights to Perth (3%), to Adelaide (2%) and to Cairns (2%) are also popular.

Book cheap flights from Washington to Australia

Recent round-trip flight deals

8/5Tue
1 stopQantas Airways
20h 10mSEA-SYD
8/19Tue
1 stopQantas Airways
19h 15mSYD-SEA
$792
8/6Wed
1 stopQantas Airways
23h 09mPDX-SYD
8/18Mon
1 stopQantas Airways
20h 30mSYD-PDX
$792
9/21Sun
2 stopsAir Canada
22h 00mPDX-SYD
10/4Sat
1 stopAir Canada
26h 26mSYD-PDX
$796
7/8Tue
2 stopsANA
26h 40mSEA-SYD
7/15Tue
2 stopsANA
23h 46mSYD-SEA
$804
7/8Tue
1 stopANA
23h 55mSEA-SYD
7/15Tue
2 stopsANA
23h 46mSYD-SEA
$815
8/24Sun
2 stops
30h 25mSEA-SYD
9/9Tue
2 stops
27h 26mSYD-SEA
$819
7/8Tue
2 stops
26h 40mSEA-SYD
7/15Tue
2 stops
27h 26mSYD-SEA
$822
7/8Tue
1 stopAmerican Airlines
22h 17mSEA-SYD
7/15Tue
1 stopAmerican Airlines
21h 50mSYD-SEA
$826
7/4Fri
1 stopAmerican Airlines
24h 20mSEA-SYD
7/31Thu
1 stopAmerican Airlines
20h 56mSYD-SEA
$834
8/19Tue
1 stopAir Canada
23h 25mSEA-SYD
9/21Sun
1 stopAir Canada
29h 56mSYD-SEA
$835

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/9Sat
1 stopAmerican Airlines
23h 58mSEA-SYD
$396
9/27Sat
2 stopsUnited Airlines
29h 30mSEA-SYD
$399
9/18Thu
1 stopANA
33h 45mSEA-SYD
$400
8/11Mon
1 stopQantas Airways
23h 09mPDX-SYD
$401
8/4Mon
1 stopQantas Airways
24h 00mSEA-SYD
$406
8/26Tue
3 stops
32h 55mSEA-SYD
$407
8/11Mon
2 stopsAir Canada
23h 00mPDX-SYD
$414
9/2Tue
2 stopsAir Canada
28h 25mSEA-MEL
$415
8/26Tue
1 stop
34h 15mSEA-SYD
$416
8/24Sun
2 stopsANA
30h 25mSEA-SYD
$419

Search by stops

Search by airline

Search by price

Last minute flights from Washington to Australia

Last minute flight, train and bus deals

6/20Fri
multi-stopUnited Airlines
25h 20mSEA-SYD
6/29Sun
multi-stopUnited Airlines
17h 28mSYD-SEA
$1,058
6/20Fri
multi-stopUnited Airlines
28h 57mSEA-SYD
6/29Sun
multi-stopUnited Airlines
28h 53mSYD-SEA
$1,062
6/20Fri
multi-stop
36h 36mSEA-CNS
7/3Thu
multi-stop
33h 41mCNS-SEA
$1,074
6/20Fri
multi-stopAmerican Airlines
22h 51mPDX-SYD
6/27Fri
multi-stopAmerican Airlines
22h 37mSYD-PDX
$1,107
6/20Fri
multi-stopAmerican Airlines
30h 10mPDX-SYD
6/27Fri
multi-stopAmerican Airlines
21h 45mSYD-PDX
$1,110
6/20Fri
multi-stop
23h 25mSEA-SYD
6/29Sun
multi-stop
26h 05mSYD-SEA
$1,162
6/20Fri
multi-stopAlaska Airlines
19h 20mSEA-SYD
6/29Sun
multi-stopAlaska Airlines
40h 40mSYD-SEA
$1,197
6/20Fri
multi-stopAlaska Airlines
19h 20mSEA-SYD
6/29Sun
multi-stopAlaska Airlines
40h 40mSYD-SEA
$1,347
6/20Fri
multi-stopHawaiian Airlines
18h 30mSEA-SYD
6/29Sun
multi-stopHawaiian Airlines
28h 00mSYD-SEA
$1,558
6/23Mon
multi-stopHawaiian Airlines
18h 30mSEA-SYD
7/4Fri
multi-stopHawaiian Airlines
17h 00mSYD-SEA
$6,972

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Australia

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.