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Cheap flights from Portland to Sydney from $640

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sydney departing on 4/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Portland to Sydney

Cheap return flights

These are some of the best return flight deals from Portland to Sydney that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to Sydney.

Cheap last-minute flights

Planning a quick getaway from Portland to Sydney? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Sydney, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Portland to Sydney

Find recent round-trip train or bus tickets from Portland to Sydney.

All round-trip flight deals to Sydney

The cheapest plane tickets to Sydney found on KAYAK recently.
12:43 - 15:35PDX-SYD
31h 52m2 stops
17:25 - 20:25SYD-PDX
21h 00m1 stop
$1,385
Find Deal
Sun, 23 Feb - Fri, 14 Mar
07:00 - 15:35PDX-SYD
37h 35m1 stop
17:25 - 21:10SYD-PDX
21h 45m1 stop
$1,386
Find Deal
Sun, 23 Feb - Fri, 14 Mar
07:00 - 15:35PDX-SYD
37h 35m1 stop
14:30 - 17:09SYD-PDX
21h 39m2 stops
$1,394
Find Deal
Sun, 16 Feb - Sat, 22 Feb
19:05 - 09:35PDX-SYD
19h 30m1 stop
11:20 - 18:24SYD-PDX
26h 04m1 stop
$1,398Air Canada
Find Deal
Sun, 9 Feb - Wed, 5 Mar
19:05 - 09:35PDX-SYD
19h 30m1 stop
10:20 - 09:34SYD-PDX
17h 14m1 stop
$1,399Air Canada
Find Deal
Sun, 23 Feb - Sun, 16 Mar
07:00 - 07:00PDX-SYD
29h 00m1 stop
11:50 - 23:06SYD-PDX
30h 16m1 stop
$1,458United Airlines
Find Deal
Thu, 13 Feb - Thu, 20 Feb
12:40 - 07:00PDX-SYD
25h 20m2 stops
09:30 - 17:42SYD-PDX
25h 12m2 stops
$1,465United Airlines
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Fri, 2 May - Fri, 9 May
13:36 - 08:35PDX-SYD
23h 59m2 stops
11:05 - 11:32SYD-PDX
19h 27m1 stop
$1,562Delta
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Sat, 15 Feb - Sat, 22 Feb
19:48 - 06:50PDX-SYD
40h 02m1 stop
14:15 - 20:07SYD-PDX
24h 52m1 stop
$1,567Delta
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Fri, 14 Feb - Sat, 22 Feb
09:55 - 19:45PDX-SYD
38h 50m2 stops
21:40 - 21:35SYD-PDX
42h 55m2 stops
$1,871Hawaiian Airlines
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Sun, 9 Feb - Sun, 23 Feb
18:07 - 15:45PDX-SYD
27h 38m1 stop
Fri, 4 Apr
09:00 - 09:05PDX-SYD
29h 05m2 stops
$699United Airlines
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Sat, 1 Mar
13:30 - 06:50PDX-SYD
22h 20m2 stops
$705Delta
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Thu, 27 Feb
18:23 - 07:00PDX-SYD
43h 37m2 stops
$707United Airlines
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Wed, 30 Apr
09:55 - 15:35PDX-SYD
34h 40m2 stops
Sun, 2 Mar
09:45 - 06:50PDX-SYD
26h 05m1 stop
$816Delta
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Tue, 4 Mar
19:05 - 18:05PDX-SYD
28h 00m2 stops
$1,078Air Canada
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Mon, 3 Mar
19:05 - 21:45PDX-SYD
31h 40m2 stops
$1,113Air Canada
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Wed, 26 Feb
07:00 - 19:45PDX-SYD
17h 45m1 stop
$1,689Hawaiian Airlines
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Sat, 11 Jan
07:00 - 19:45PDX-SYD
17h 45m1 stop
$6,967Hawaiian Airlines
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Mon, 17 Feb
14:48 - 07:00PDX-SYD
45h 12m2 stops
12:10 - 12:30SYD-PDX
19h 20m1 stop
$2,152United Airlines
Find Deal
Mon, 23 Dec - Fri, 10 Jan
14:48 - 07:00PDX-SYD
45h 12m2 stops
11:20 - 22:44SYD-PDX
30h 24m2 stops
$2,160United Airlines
Find Deal
Mon, 23 Dec - Fri, 10 Jan
17:21 - 08:35PDX-SYD
20h 14m1 stop
14:15 - 22:45SYD-PDX
27h 30m1 stop
$2,234Delta
Find Deal
Tue, 24 Dec - Mon, 13 Jan
14:48 - 07:00PDX-SYD
45h 12m2 stops
11:50 - 19:55SYD-PDX
27h 05m1 stop
$2,239United Airlines
Find Deal
Mon, 23 Dec - Mon, 30 Dec
09:18 - 08:35PDX-SYD
28h 17m2 stops
14:15 - 23:54SYD-PDX
28h 39m2 stops
$2,240Delta
Find Deal
Tue, 24 Dec - Mon, 13 Jan
16:31 - 15:35PDX-SYD
28h 04m2 stops
21:40 - 21:00SYD-PDX
18h 20m1 stop
$3,296
Find Deal
Wed, 25 Dec - Fri, 27 Dec
17:59 - 12:30PDX-SYD
23h 31m2 stops
15:25 - 16:59SYD-PDX
20h 34m2 stops
$3,403
Find Deal
Wed, 25 Dec - Fri, 27 Dec
17:59 - 17:40PDX-SYD
28h 41m3 stops
19:15 - 20:11SYD-PDX
43h 56m2 stops
$3,657Air Tahiti Nui
Find Deal
Tue, 24 Dec - Mon, 13 Jan
15:39 - 09:00PDX-SYD
22h 21m1 stop
19:05 - 22:20SYD-PDX
22h 15m2 stops
$4,073Qantas Airways
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Mon, 23 Dec - Wed, 25 Dec
07:30 - 09:00PDX-SYD
30h 30m1 stop
11:15 - 22:44SYD-PDX
30h 29m1 stop
$4,180Qantas Airways
Find Deal
Wed, 25 Dec - Fri, 27 Dec

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets
Air Canada
9 Feb
PDX19:05Portland
19h 30m
1 stop
SYD09:35Sydney Kingsford Smith
5 Mar
SYD11:20Sydney Kingsford Smith
26h 04m
1 stop
PDX18:24Portland
Air Canada
23 Feb
PDX19:05Portland
19h 30m
1 stop
SYD09:35Sydney Kingsford Smith
16 Mar
SYD10:20Sydney Kingsford Smith
17h 14m
1 stop
PDX09:34Portland
Air Canada
9 Feb
PDX19:05Portland
24h 35m
2 stops
SYD14:40Sydney Kingsford Smith
23 Feb
SYD11:20Sydney Kingsford Smith
26h 04m
1 stop
PDX18:24Portland

United Airlines flights from Portland to Sydney

Our best United Airlines deals on Portland to Sydney flight tickets
United Airlines
13 Feb
PDX07:00Portland
29h 00m
1 stop
SYD07:00Sydney Kingsford Smith
20 Feb
SYD11:50Sydney Kingsford Smith
30h 16m
1 stop
PDX23:06Portland
United Airlines
2 May
PDX12:40Portland
25h 20m
2 stops
SYD07:00Sydney Kingsford Smith
9 May
SYD09:30Sydney Kingsford Smith
25h 12m
2 stops
PDX17:42Portland
United Airlines
30 Jan
PDX19:30Portland
39h 50m
1 stop
SYD06:20Sydney Kingsford Smith
14 Feb
SYD16:15Sydney Kingsford Smith
21h 25m
1 stop
PDX18:40Portland

See travel insights to Sydney from

How to get the cheapest flight ticket from Portland to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Portland, with most prices found around $1,607. If you aren’t able to travel to Sydney during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,647.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $0. The most expensive day to fly to Sydney is Sunday, with ticket prices averaging around $2,101.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at midday. momondo users have found flights departing from Portland to Sydney at midday for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,884 on average. Flights to Sydney from Portland in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Sydney?

We recommend purchasing flights from Portland to Sydney 25 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Sydney for $1,811. However, in the past 72 hours, people saw flights from Portland for as low as $1,979.

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 8% on your flight if you consider stops on a Portland to Sydney flight.

How have Portland to Sydney flight prices changed over time?

As of December 2024, prices for Portland to Sydney flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Portland to Sydney (PDX to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Sydney

Best price found

$640

Fastest flight time

17h 45m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Portland in the past 72 hours is $640. The best return flight deal from Portland to Sydney found on momondo in the last 72 hours is $1,385.
The fastest flight from Portland to Sydney takes 17h 45m
There are no direct flights from Portland to Sydney. Popular non-direct route for this connection is Portland Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

  • How far is Portland to Sydney Kingsford Smith by plane?

    There are 12333.8 km between Portland and Sydney Kingsford Smith. By plane, this route typically takes 17h 45m.

  • When did momondo last update prices for flights from Portland Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Portland Airport to Sydney Kingsford Smith Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Portland Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Sydney?


Best airlines flying from Portland to Sydney

Compare and see reviews for airlines that fly from Portland to Sydney with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,294Free cancellationRating
7.4
9,028 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Sydney?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Sydney . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Portland with this policy.

How can momondo help me find flights from Portland to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Portland.

I’m not ready to book a flight from Portland to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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