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$464 Find Cheap Flights from Washington to Australia

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 3/26. 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

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In the last 7 days travelers have searched 46,479,581 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$464
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Seattle to Brisbane

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

3/1Sat
1 stop
38h 20mSEA-MEL
3/16Sun
1 stop
22h 35mMEL-SEA
$777
2/2Sun
1 stopAir Canada
19h 30mSEA-SYD
2/26Wed
1 stopAir Canada
22h 10mSYD-SEA
$830
4/8Tue
2 stopsANA
39h 40mSEA-SYD
4/22Tue
1 stopANA
34h 30mSYD-SEA
$847
2/10Mon
1 stopDelta
25h 45mSEA-BNE
2/23Sun
1 stopDelta
21h 23mBNE-SEA
$853
3/3Mon
2 stopsAmerican Airlines
24h 24mSEA-BNE
3/20Thu
1 stopAmerican Airlines
23h 43mBNE-SEA
$855
3/2Sun
1 stopANA
33h 30mSEA-SYD
3/11Tue
1 stopANA
34h 35mSYD-SEA
$862
2/10Mon
1 stopAmerican Airlines
22h 16mSEA-BNE
2/24Mon
1 stopAmerican Airlines
29h 38mBNE-SEA
$862
12/9Mon
1 stopDelta
19h 25mSEA-BNE
12/25Wed
1 stopDelta
23h 04mBNE-SEA
$863
2/9Sun
1 stopUnited Airlines
22h 05mSEA-BNE
2/23Sun
1 stopUnited Airlines
17h 32mBNE-SEA
$864
1/25Sat
1 stopUnited Airlines
23h 58mPDX-BNE
2/9Sun
1 stopUnited Airlines
26h 57mBNE-PDX
$874

Search by stops

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Search by price

Recent one-way flight deals

3/26Wed
1 stopDelta
19h 46mSEA-BNE
$464
3/2Sun
2 stopsUnited Airlines
30h 30mSEA-BNE
$469
1/30Thu
2 stopsDelta
42h 31mPDX-BNE
$470
3/15Sat
1 stop
38h 55mSEA-MEL
$477
2/6Thu
2 stops
35h 15mSEA-SYD
$519
2/26Wed
1 stopHawaiian Airlines
17h 45mSEA-SYD
$562
4/29Tue
1 stopAir Canada
32h 20mPDX-SYD
$565
3/15Sat
1 stopAmerican Airlines
20h 49mPDX-SYD
$571
3/26Wed
1 stopAir Canada
32h 35mPDX-SYD
$572
1/3Fri
1 stopHawaiian Airlines
40h 30mSEA-SYD
$1,221

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Search by price

Last minute flights from Washington to Australia

Last minute flight, train and bus deals

11/4Mon
multi-stopANA
23h 50mSEA-SYD
11/17Sun
multi-stopANA
34h 35mSYD-SEA
$858
11/4Mon
multi-stopANA
23h 50mSEA-SYD
11/11Mon
multi-stopANA
34h 35mSYD-SEA
$864
11/2Sat
multi-stopUnited Airlines
45h 30mPDX-SYD
11/16Sat
multi-stopUnited Airlines
28h 04mSYD-PDX
$944
11/4Mon
multi-stopDelta
44h 10mSEA-SYD
11/17Sun
multi-stopDelta
32h 10mSYD-SEA
$947
11/1Fri
multi-stopDelta
22h 10mPDX-SYD
11/24Sun
multi-stopDelta
20h 01mSYD-PDX
$954
11/4Mon
multi-stopUnited Airlines
29h 31mSEA-SYD
11/11Mon
multi-stopUnited Airlines
28h 47mSYD-SEA
$992
11/1Fri
multi-stopAlaska Airlines
32h 21mSEA-SYD
11/4Mon
multi-stopAlaska Airlines
23h 45mSYD-SEA
$1,196
11/1Fri
multi-stopAlaska Airlines
41h 25mSEA-SYD
11/18Mon
multi-stopAlaska Airlines
31h 02mSYD-SEA
$1,211
11/3Sun
multi-stop
40h 25mSEA-SYD
11/11Mon
multi-stop
33h 05mSYD-SEA
$1,325
11/5Tue
multi-stop
26h 35mSEA-MEL
11/20Wed
multi-stop
23h 35mMEL-SEA
$1,367

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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.