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Find cheap flights from Washington to Australia from $334

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington to Australia departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/8
Mon 7/15

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In the last 7 days travelers have searched 43,124,673 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$334
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Seattle to Melbourne Airport (Tullamarine)

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 to Australia from Washington 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 to Australia with an airline and back to Washington 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 to Australia from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Washington to Australia

Recent round-trip flight deals

8/27Tue
1 stop
25h 39mSEA-MEL
8/30Fri
2 stops
29h 20mMEL-SEA
$795
9/14Sat
2 stops
49h 44mSEA-SYD
9/24Tue
1 stop
24h 39mSYD-SEA
$816
11/1Fri
1 stopHawaiian Airlines
18h 05mSEA-SYD
11/17Sun
1 stopHawaiian Airlines
18h 55mSYD-SEA
$883
10/21Mon
1 stopHawaiian Airlines
18h 05mSEA-SYD
10/31Thu
2 stopsHawaiian Airlines
19h 50mSYD-SEA
$929
10/27Sun
1 stopPhilippine Airlines
37h 45mSEA-MEL
11/3Sun
1 stopPhilippine Airlines
28h 15mMEL-SEA
$950
11/11Mon
2 stopsANA
39h 20mSEA-SYD
11/24Sun
1 stopANA
34h 25mSYD-SEA
$992
10/11Fri
1 stopPhilippine Airlines
40h 05mSEA-SYD
10/20Sun
1 stopPhilippine Airlines
25h 45mSYD-SEA
$993
9/9Mon
1 stopUnited Airlines
18h 15mSEA-SYD
9/24Tue
2 stopsUnited Airlines
29h 29mSYD-SEA
$1,012
11/12Tue
2 stopsANA
39h 20mSEA-SYD
2/11Tue
1 stopANA
34h 25mSYD-SEA
$1,016
10/30Wed
2 stopsUnited Airlines
29h 27mSEA-SYD
11/4Mon
2 stopsUnited Airlines
28h 32mSYD-SEA
$1,018

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Recent one-way flight deals

8/27Tue
1 stop
25h 39mSEA-MEL
$334
8/27Tue
2 stops
36h 05mSEA-MEL
$342
9/11Wed
2 stopsHawaiian Airlines
42h 55mSEA-MEL
$760
10/23Wed
1 stopPhilippine Airlines
36h 20mSEA-MEL
$761
8/27Tue
2 stopsCathay Pacific
33h 20mPDX-MEL
$825
7/31Wed
2 stopsFiji Airways
26h 53mSEA-SYD
$827
8/19Mon
1 stopHawaiian Airlines
18h 00mSEA-SYD
$853
9/1Sun
2 stopsCathay Pacific
36h 15mSEA-MEL
$892
8/27Tue
3 stopsFiji Airways
35h 15mPDX-MEL
$995
11/21Thu
2 stopsPhilippine Airlines
48h 58mSEA-MEL
$2,905

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Last minute flights from Washington to Australia

Last minute flight, train and bus deals

6/13Thu
multi-stopHawaiian Airlines
40h 15mSEA-SYD
6/20Thu
multi-stopHawaiian Airlines
17h 05mSYD-SEA
$1,242
6/13Thu
multi-stopHawaiian Airlines
40h 15mSEA-SYD
6/20Thu
multi-stopHawaiian Airlines
41h 55mSYD-SEA
$1,344
6/9Sun
multi-stop
22h 30mSEA-MEL
6/14Fri
multi-stop
21h 12mMEL-SEA
$1,749
6/9Sun
multi-stop
22h 30mSEA-MEL
6/13Thu
multi-stop
30h 07mMEL-SEA
$1,809
6/11Tue
multi-stopAir New Zealand
21h 30mSEA-SYD
6/13Thu
multi-stopAir New Zealand
29h 20mSYD-SEA
$1,991
6/11Tue
multi-stopAir New Zealand
23h 20mSEA-SYD
6/13Thu
multi-stopAir New Zealand
27h 25mSYD-SEA
$2,002
6/13Thu
multi-stopUnited Airlines
37h 05mSEA-BNE
7/20Sat
multi-stopUnited Airlines
44h 17mBNE-SEA
$2,151
6/11Tue
multi-stopAir Tahiti Nui
29h 50mSEA-SYD
6/22Sat
multi-stopAir Tahiti Nui
41h 41mSYD-SEA
$2,255
6/11Tue
multi-stopAir Tahiti Nui
30h 41mSEA-MEL
6/22Sat
multi-stopAir Tahiti Nui
45h 18mMEL-SEA
$2,533
6/11Tue
multi-stopUnited Airlines
32h 45mSEA-MEL
6/22Sat
multi-stopUnited Airlines
32h 00mMEL-SEA
$2,560

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Flights to Australia