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Cheap flights from Portland to Sydney from $435

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 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to Sydney

Cheap round-trip flights

These are some of the best round-trip 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 layovers.

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 from Portland to Sydney

The cheapest plane tickets from Portland to Sydney found on KAYAK recently.
6:07 pm - 2:40 pmPDX-SYD
27h 33m1 stop
4:20 pm - 10:23 pmSYD-PDX
23h 03m2 stops
Wed, Apr 9 - Mon, Apr 28
6:07 pm - 2:40 pmPDX-SYD
27h 33m1 stop
4:20 pm - 6:20 amSYD-PDX
31h 00m1 stop
Wed, Apr 9 - Mon, Apr 28
7:05 pm - 4:40 pmPDX-SYD
26h 35m2 stops
11:20 am - 9:34 amSYD-PDX
17h 14m1 stop
$894Air Canada
Find Deal
Mon, Feb 3 - Sun, Feb 9
3:25 pm - 2:40 pmPDX-SYD
28h 15m2 stops
9:00 am - 2:44 pmSYD-PDX
24h 44m2 stops
$910Air Canada
Find Deal
Sun, Feb 9 - Wed, Mar 5
7:45 am - 7:45 pmPDX-SYD
18h 00m1 stop
9:40 pm - 5:05 amSYD-PDX
25h 25m1 stop
$946Alaska Airlines
Find Deal
Mon, Mar 10 - Thu, Mar 20
11:52 am - 7:00 amPDX-SYD
24h 08m1 stop
12:10 pm - 3:08 pmSYD-PDX
21h 58m1 stop
$963United Airlines
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Fri, Jan 31 - Fri, Feb 14
10:21 am - 6:55 amPDX-SYD
27h 34m1 stop
10:20 am - 10:53 pmSYD-PDX
29h 33m2 stops
$967United Airlines
Find Deal
Sat, Apr 19 - Fri, May 2
9:38 am - 7:45 pmPDX-SYD
39h 07m1 stop
9:40 pm - 9:10 pmSYD-PDX
18h 30m1 stop
$1,068Alaska Airlines
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Tue, Mar 4 - Fri, Mar 7
1:00 pm - 6:35 amPDX-SYD
24h 35m1 stop
9:25 am - 4:09 pmSYD-PDX
23h 44m1 stop
$1,070Delta
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Wed, May 21 - Wed, Jun 4
1:45 pm - 6:35 amPDX-SYD
23h 50m2 stops
9:25 am - 2:38 pmSYD-PDX
22h 13m2 stops
$1,074Delta
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Sun, Apr 20 - Tue, Apr 29
6:00 am - 9:00 amPDX-SYD
32h 00m1 stop
$435American Airlines
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Sat, Feb 8
1:00 pm - 9:05 amPDX-SYD
25h 05m2 stops
$436United Airlines
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Sat, Mar 1
6:23 pm - 7:00 amPDX-SYD
43h 37m2 stops
$456United Airlines
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Wed, Apr 30
9:50 am - 12:30 pmPDX-SYD
31h 40m2 stops
Sun, Feb 16
9:50 am - 1:00 pmPDX-SYD
32h 10m2 stops
Thu, Feb 13
7:35 am - 12:30 pmPDX-SYD
33h 55m3 stops
Sat, Feb 8
9:16 pm - 9:00 amPDX-SYD
40h 44m1 stop
$534Alaska Airlines
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Fri, Feb 14
9:30 pm - 7:05 amPDX-SYD
40h 35m1 stop
$543Alaska Airlines
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Fri, May 23
10:10 am - 9:35 amPDX-SYD
28h 25m1 stop
$4,652Air Canada
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Mon, Feb 17
3:43 pm - 9:00 amPDX-SYD
22h 17m1 stop
$6,091Qantas Airways
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Mon, Feb 17
7:30 pm - 9:15 amPDX-SYD
18h 45m1 stop
4:15 pm - 10:44 pmSYD-PDX
25h 29m2 stops
$967United Airlines
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Fri, Jan 24 - Fri, Jan 31
1:32 pm - 9:15 amPDX-SYD
24h 43m1 stop
12:10 pm - 7:02 pmSYD-PDX
25h 52m1 stop
$1,149United Airlines
Find Deal
Fri, Jan 24 - Sun, Feb 9
7:30 pm - 9:15 amPDX-SYD
18h 45m1 stop
4:15 pm - 10:44 pmSYD-PDX
25h 29m2 stops
$1,153United Airlines
Find Deal
Fri, Jan 24 - Sun, Feb 9
11:52 am - 9:05 amPDX-SYD
50h 13m2 stops
12:10 pm - 7:02 pmSYD-PDX
25h 52m1 stop
$1,213United Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
7:00 am - 7:45 pmPDX-SYD
17h 45m1 stop
9:40 pm - 9:41 pmSYD-PDX
19h 01m1 stop
$1,294Alaska Airlines
Find Deal
Fri, Jan 24 - Fri, Jan 31
6:00 am - 9:00 amPDX-SYD
32h 00m1 stop
11:15 am - 8:11 pmSYD-PDX
27h 56m1 stop
$1,417American Airlines
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Wed, Jan 22 - Wed, Jan 29
7:00 am - 7:45 pmPDX-SYD
17h 45m1 stop
9:40 pm - 11:59 pmSYD-PDX
21h 19m2 stops
$1,442Hawaiian Airlines
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Fri, Jan 24 - Sun, Jan 26
7:00 am - 7:45 pmPDX-SYD
17h 45m1 stop
9:40 pm - 9:41 pmSYD-PDX
19h 01m1 stop
$1,519Alaska Airlines
Find Deal
Fri, Jan 24 - Sun, Jan 26
5:35 pm - 9:00 amPDX-SYD
44h 25m2 stops
5:50 pm - 3:05 pmSYD-PDX
40h 15m3 stops
$1,536
Find Deal
Wed, Jan 22 - Wed, Jan 29
3:37 pm - 9:00 amPDX-SYD
22h 23m1 stop
11:15 am - 10:44 pmSYD-PDX
30h 29m1 stop
$26,049Qantas Airways
Find Deal
Fri, Jan 24 - Sun, Jan 26

American Airlines flights from Portland to Sydney

Our best American Airlines deals on Portland to Sydney flight tickets
American Airlines
Feb 8
PDX6:00 amPortland
32h 00m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 21
SYD11:15 amSydney Kingsford Smith
22h 58m
1 stop
PDX3:13 pmPortland
American Airlines
Jan 30
PDX3:37 pmPortland
22h 23m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 7
SYD11:15 amSydney Kingsford Smith
22h 50m
1 stop
PDX3:05 pmPortland
American Airlines
Apr 19
PDX6:46 amPortland
31h 19m
1 stop
SYD7:05 amSydney Kingsford Smith
May 2
SYD9:10 amSydney Kingsford Smith
19h 23m
1 stop
PDX11:33 amPortland

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets
Air Canada
Feb 3
PDX7:05 pmPortland
26h 35m
2 stops
SYD4:40 pmSydney Kingsford Smith
Feb 9
SYD11:20 amSydney Kingsford Smith
17h 14m
1 stop
PDX9:34 amPortland
Air Canada
Feb 9
PDX3:25 pmPortland
28h 15m
2 stops
SYD2:40 pmSydney Kingsford Smith
Mar 5
SYD9:00 amSydney Kingsford Smith
24h 44m
2 stops
PDX2:44 pmPortland
Air Canada
Mar 10
PDX3:25 pmPortland
27h 15m
2 stops
SYD12:40 pmSydney Kingsford Smith
Mar 20
SYD7:15 pmSydney Kingsford Smith
32h 19m
2 stops
PDX9:34 amPortland

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 typical price of a round-trip flight between Portland and Sydney?

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from Portland to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $997. If you are unable to visit Sydney during the month of February, then departing from Portland during the month May is also very affordable. Most momondo users find prices during this month for around $1,030.

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

The cheapest day to depart from Portland to Sydney is on a Saturday when prices can be found for as low as $1,040. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,146.

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 in the morning. momondo users have found flights departing from Portland to Sydney in the morning for as low as $1,060. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly at noon, with an average ticket price of $1,135. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Sydney from Portland when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,136 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Portland for as low as $936 on momondo.

How have Portland to Sydney flight prices changed over time?

As of January 2025, prices for Portland to Sydney flights are approximately 6% 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 round-trip 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

$435

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 $435. The best round-trip flight deal from Portland to Sydney found on momondo in the last 72 hours is $753.
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?

    A flight from Portland to Sydney Kingsford Smith will travel around 7663.9 mi. A reasonable flight in good conditions will take 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
Hawaiian AirlinesPriceFrom $444Free CancellationRating
7.9
2,333 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
Air CanadaPriceFrom $806Free CancellationRating
7.0
8,635 reviews
Search Air Canada flights
DeltaPriceFrom $824Free CancellationRating
8.0
8,521 reviews
Search Delta flights
Qantas AirwaysPriceFrom $856Free CancellationRating
7.5
824 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,055Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $1,068Free CancellationRating
8.0
9,706 reviews
Search Alaska Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Cronulla
Parramatta
Bondi Beach
Katoomba
Wollongong
Lithgow
Manly
Penrith
Randwick
Charlestown
Coogee
Swansea
Terrigal

Why use momondo?

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

Finding the right flight to Sydney from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

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

Flights from Portland to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

If you are not ready to book a flight from Portland to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.


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