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Find cheap flights from Oregon to Australia from $645

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oregon to Australia departing on 7/31. 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
Wed 7/10
Wed 7/17

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Good to know

Low season

April

High season

December

Cheapest flight

$645
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 Portland to Perth

FAQs for booking flights from Oregon to Australia

  • How does KAYAK find such low prices on flights from Oregon 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 Oregon to Australia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia from Oregon 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 Oregon 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 Oregon with another airline.

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

Recent round-trip flight deals

10/20Sun
1 stop
37h 10mPDX-SYD
11/18Mon
1 stop
20h 40mSYD-PDX
$953
8/10Sat
2 stops
55h 25mPDX-SYD
8/29Thu
1 stop
21h 05mSYD-PDX
$993
9/24Tue
1 stopUnited Airlines
27h 35mPDX-SYD
10/8Tue
1 stopUnited Airlines
19h 24mSYD-PDX
$1,110
10/20Sun
2 stopsUnited Airlines
30h 55mPDX-SYD
11/18Mon
1 stopUnited Airlines
17h 32mSYD-PDX
$1,114
10/20Sun
1 stopDelta
27h 35mPDX-SYD
11/18Mon
1 stopDelta
27h 41mSYD-PDX
$1,117
10/16Wed
2 stopsDelta
32h 00mPDX-SYD
11/10Sun
2 stopsDelta
22h 27mSYD-PDX
$1,121
9/1Sun
2 stopsAir New Zealand
25h 59mPDX-BNE
9/22Sun
2 stopsAir New Zealand
25h 32mBNE-PDX
$1,239
8/19Mon
2 stopsAir New Zealand
26h 31mBOI-SYD
8/26Mon
2 stopsAir New Zealand
27h 11mSYD-BOI
$1,240
11/8Fri
2 stopsANA
38h 35mPDX-SYD
11/14Thu
2 stopsANA
23h 56mSYD-PDX
$1,240
8/24Sat
2 stopsANA
44h 15mPDX-SYD
8/30Fri
2 stopsANA
59h 04mSYD-PDX
$1,461

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Recent one-way flight deals

7/31Wed
3 stops
46h 50mPDX-PER
$645
7/31Wed
2 stops
47h 50mPDX-PER
$675
9/21Sat
1 stopHawaiian Airlines
18h 00mPDX-SYD
$696
9/21Sat
2 stopsChina Southern
36h 45mPDX-SYD
$835
9/21Sat
1 stopQantas Airways
24h 10mPDX-SYD
$1,000
9/21Sat
3 stopsUnited Airlines
48h 25mPDX-SYD
$1,009
7/30Tue
2 stopsAir New Zealand
25h 46mEUG-SYD
$1,032
7/30Tue
3 stopsAir Tahiti Nui
31h 52mEUG-SYD
$1,291
7/30Tue
1 stopUnited Airlines
24h 01mEUG-SYD
$1,293
6/19Wed
2 stopsQantas Airways
27h 20mPDX-AVV
$2,312

Search by stops

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Last minute flights from Oregon to Australia

Last minute flight, train and bus deals

6/14Fri
multi-stop
37h 10mPDX-SYD
6/21Fri
multi-stop
21h 00mSYD-PDX
$1,753
6/14Fri
multi-stop
37h 10mPDX-SYD
6/21Fri
multi-stop
21h 50mSYD-PDX
$1,756
6/14Fri
multi-stop
36h 00mPDX-SYD
6/21Fri
multi-stop
21h 00mSYD-PDX
$1,757
6/13Thu
multi-stopAir New Zealand
18h 30mPDX-SYD
6/15Sat
multi-stopAir New Zealand
57h 07mSYD-PDX
$2,112
6/12Wed
multi-stopAir New Zealand
20h 08mBOI-SYD
6/14Fri
multi-stopAir New Zealand
25h 22mSYD-BOI
$2,120
6/13Thu
multi-stopAir New Zealand
35h 35mMFR-SYD
6/15Sat
multi-stopAir New Zealand
47h 35mSYD-MFR
$2,121
6/12Wed
multi-stopUnited Airlines
24h 29mBOI-SYD
6/14Fri
multi-stopUnited Airlines
44h 33mSYD-BOI
$2,196
6/13Thu
multi-stopUnited Airlines
37h 45mPDX-SYD
6/21Fri
multi-stopUnited Airlines
27h 43mSYD-PDX
$2,212
6/13Thu
multi-stopQantas Airways
24h 43mPDX-SYD
6/15Sat
multi-stopQantas Airways
18h 07mSYD-PDX
$2,586
6/12Wed
multi-stopQatar Airways
47h 48mPDX-SYD
6/15Sat
multi-stopQatar Airways
43h 59mSYD-PDX
$3,209

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Flights to Australia

Return flight deals:

Australia - Oregon

Cabin classes: