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PDX - SYD

$706 Find cheap flights from Portland to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Sydney departing on 10/8. 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
Sun 16/6
Sun 23/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Sydney, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,211,976 times on KAYAK, and here's why:

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Cheap flight deals from Portland to Sydney (PDX-SYD)

 
These are the cheapest deals for flights from Portland to Sydney currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Portland to Sydney

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Portland to Sydney.

Recent one-way flight deals from Portland to Sydney

Only flying one-way? Below are some of the best one-way flight deals from Portland to Sydney found on KAYAK recently.

Recent last-minute flight deals from Portland to Sydney

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Portland to Sydney.

Recent direct flight deals from Portland to Sydney

The latest deals for direct flights from Portland to Sydney so you can sit back and relax without the need for a layover.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
08:30 - 14:40PDX-SYD
37h 10m1 stop
16:20 - 20:25SYD-PDX
21h 05m1 stop
$1,382
Find Deal
Sun, 25 Aug - Thu, 29 Aug
09:40 - 14:40PDX-SYD
36h 00m2 stops
16:20 - 20:25SYD-PDX
21h 05m1 stop
$1,474
Find Deal
Sun, 25 Aug - Thu, 29 Aug
18:00 - 08:20PDX-SYD
20h 20m1 stop
11:20 - 17:21SYD-PDX
25h 01m1 stop
$1,579Air Canada
Find Deal
Sat, 2 Nov - Sat, 16 Nov
18:00 - 08:20PDX-SYD
20h 20m1 stop
09:00 - 17:21SYD-PDX
27h 21m2 stops
$1,600Air Canada
Find Deal
Sat, 2 Nov - Sat, 16 Nov
09:30 - 07:05PDX-SYD
28h 35m1 stop
10:10 - 12:50SYD-PDX
20h 40m1 stop
$1,636American Airlines
Find Deal
Tue, 24 Sep - Tue, 8 Oct
09:30 - 07:05PDX-SYD
28h 35m1 stop
10:10 - 18:33SYD-PDX
26h 23m2 stops
$1,642American Airlines
Find Deal
Tue, 24 Sep - Tue, 8 Oct
13:20 - 07:35PDX-SYD
24h 15m1 stop
11:05 - 19:06SYD-PDX
27h 01m1 stop
$1,670Delta
Find Deal
Wed, 16 Oct - Sun, 10 Nov
05:35 - 07:35PDX-SYD
32h 00m2 stops
11:05 - 18:14SYD-PDX
26h 09m2 stops
$1,678Delta
Find Deal
Wed, 16 Oct - Sun, 10 Nov
11:13 - 08:00PDX-SYD
26h 47m1 stop
14:00 - 15:09SYD-PDX
20h 09m1 stop
$1,748United Airlines
Find Deal
Sun, 13 Oct - Wed, 13 Nov
15:59 - 08:00PDX-SYD
22h 01m1 stop
14:00 - 20:58SYD-PDX
25h 58m2 stops
$1,754United Airlines
Find Deal
Sun, 13 Oct - Wed, 13 Nov
08:30 - 07:25PDX-SYD
53h 55m2 stops
Sat, 10 Aug
09:40 - 14:40PDX-SYD
36h 00m2 stops
Thu, 8 Aug
09:40 - 07:25PDX-SYD
52h 45m3 stops
Sat, 10 Aug
08:30 - 14:40PDX-SYD
37h 10m1 stop
Fri, 9 Aug
19:55 - 20:10PDX-SYD
31h 15m2 stops
$1,239Cathay Pacific
Find Deal
Sat, 21 Sep
08:45 - 19:45PDX-SYD
18h 00m1 stop
$1,277Hawaiian Airlines
Find Deal
Sat, 21 Sep
13:30 - 06:55PDX-SYD
48h 25m3 stops
$1,498United Airlines
Find Deal
Sat, 21 Sep
15:25 - 07:20PDX-SYD
22h 55m1 stop
$1,789Air Canada
Find Deal
Mon, 3 Jun
15:25 - 07:20PDX-SYD
22h 55m1 stop
$1,819Air Canada
Find Deal
Sat, 10 Aug
08:00 - 06:55PDX-SYD
29h 55m3 stops
$1,878United Airlines
Find Deal
Fri, 9 Aug
13:25 - 08:10PDX-SYD
25h 45m1 stop
17:40 - 20:35SYD-PDX
43h 55m2 stops
$2,410
Find Deal
Sun, 19 May - Tue, 21 May
10:20 - 09:45PDX-SYD
30h 25m3 stops
20:45 - 19:31SYD-PDX
63h 46m2 stops
$3,080
Find Deal
Sun, 19 May - Tue, 21 May
10:28 - 08:45PDX-SYD
29h 17m2 stops
11:50 - 20:35SYD-PDX
25h 45m2 stops
$3,166
Find Deal
Sun, 19 May - Tue, 21 May
13:25 - 08:10PDX-SYD
25h 45m1 stop
17:35 - 08:33SYD-PDX
31h 58m1 stop
$3,760Qantas Airways
Find Deal
Sun, 19 May - Tue, 21 May
00:30 - 17:10PDX-SYD
47h 40m2 stops
20:45 - 18:06SYD-PDX
38h 21m2 stops
$4,960Qatar Airways
Find Deal
Sat, 18 May - Tue, 21 May
08:56 - 07:00PDX-SYD
29h 04m3 stops
09:30 - 14:52SYD-PDX
22h 22m3 stops
$15,448United Airlines
Find Deal
Sun, 19 May - Tue, 21 May

Flights from Portland to Sydney - Travel Insights & Trends

Get data-powered insights and trends into flights from Portland to Sydney to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to Sydney?

The average price of all flights from Portland to Sydney clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Portland to Sydney, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Sydney, Monday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from Portland to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portland to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portland to Sydney is February, where tickets cost $1,485 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $2,745 and $2,232 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Portland to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Portland to Sydney, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 days before departure.

Which airlines provide the cheapest flights from Portland to Sydney?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Portland to Sydney found on KAYAK was with Cathay Pacific for $1,239. Air Canada proposed a return connection from $1,579 and American Airlines from $1,636.

Good to know

Low season

May

High season

March

Cheapest flight

$706
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 12% lower on average.
Flight from Portland to Sydney

When to book flights from Portland to Sydney

Are your dates flexible? Find out the best times to travel from Portland to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Sydney

  • Do I need a visa to fly from Portland International Airport (PDX) to Sydney Airport (SYD)?

    If you are an American citizen that is flying from Portland International Airport (PDX) to Sydney Airport (SYD), you need to have a valid passport and a visa to enter Australia. The visa is referred to as an Electronic Travel Authority (ETA) and it allows most travelers to stay in the country for up to 90 days.

  • What transportation options are there for going from Sydney Airport (SYD) to downtown Sydney?

    The easiest way to go from Sydney Airport (SYD) to downtown Sydney is by driving. With normal traffic, this will take you around 15 to 20 minutes in total. You can either rent your own car from the airport, grab a local taxi from outside of the Arrivals terminal, or use a ridesharing service.

  • What airline lounges are available at Portland International Airport (PDX)?

    Portland International Airport (PDX) has quite a few lounges for travelers to choose from. You can find the Alaska Airlines Alaska Lounge in Concourse B, as well as in Concourse C. The Delta Air Lines Delta Sky Club is in Concourse D, while the United Airlines United Club is in Concourse E.

  • What is the checked luggage policy for flights from Portland International Airport (PDX) to Sydney Airport (SYD)?

    When you fly Economy from Portland International Airport (PDX) to Sydney Airport (SYD), you will generally be able to check one bag for free. Air Canada has a policy that your suitcase or item cannot weigh more than a maximum of 70 lbs.

  • What is the cheapest flight from Portland to Sydney?

    In the last 3 days, the lowest price for a flight from Portland to Sydney was $472 for a one-way ticket and $923 for a return.

  • Which airports will I be using when flying from Portland to Sydney?

    Portland and Sydney are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Portland to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Sydney?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Portland and Sydney, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Sydney, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Portland to Sydney are United Airlines and Air Canada. With an average price for the route of $1,656 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $1,778 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Portland to Sydney?

    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 Portland to Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Portland 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 Portland to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Portland with another airline.

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

    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 Sydney from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Portland to Sydney

  • Travelers have a few different ways how they can go from downtown Portland to Portland International Airport (PDX). When going by car, the trip generally lasts between 10 and 15 minutes. When taking public transportation, like bus line 12 and the MAX Red Line Shuttle, you will arrive in approximately 1 hour.
  • Direct flights from Portland International Airport (PDX) to Sydney Airport (SYD) are not offered, so you will need to have at least one layover. If you are flying with Qantas Airways, you will likely have a layover in Los Angeles. If you are flying with Air Canada, you may have layovers in Vancouver and Brisbane.
  • Those that value sustainability may want to fly from Portland International Airport (PDX) to Sydney Airport (SYD) with Qantas Airways. Qantas Airways prioritizes the environment and has pledged to reduce its carbon emissions by 25% by 2030 and achieve net zero emissions by 2050. It also has been working to remove single-use plastics from its supply chain.
  • Flying from Portland International Airport (PDX) to Sydney Airport (SYD) is quite a long journey, so it may be worth it to upgrade to Premium Economy or Business Class for your comfort. After you have booked an Economy ticket, many airlines will give you the option of upgrading at a discounted rate.
  • To save some money during your trip from Portland International Airport (PDX) to Sydney Airport (SYD), book a Basic Economy ticket. Both Air Canada and United Airlines offer Basic Economy fares, while Fiji Airways has a Saver fare.
See more tips

Top airlines flying from Portland to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Portland to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10924 reviews
6.7Food
8.1Crew
7.2Comfort
7.1Entertainment
7.7Boarding
Airline reviews

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

6.0 Goodmichael, May 2024ORD - YVR
Read more about United Airlines reviews

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

They canceled the flight on us very close to the flight date .

It took 66 hours to get from Seattle to Tel Aviv. As a minor, I was left for more than 12 hours in Toronto and Frankfurt without hotel and food vouchers. It took 5 layovers. It was insane and not okay

It was delayed but got us to YYZ. I had great copassengers.

Flew SEA-CA, then CA-NRT. First flight was short but very uncomfortable, dirty, and had very small overhead storage space. The seats and fans were not cleaned and had visible dirt on them. Second flight was perfect.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

Book cheap flights from Portland to Sydney

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to Sydney found on KAYAK in the last 72 hours.
10/8Sat
2 stops
53h 55mPDX-SYD
$706
8/8Thu
2 stops
36h 00mPDX-SYD
$708
10/8Sat
3 stops
52h 45mPDX-SYD
$715
9/8Fri
1 stop
37h 10mPDX-SYD
$753
21/9Sat
2 stopsCathay Pacific
31h 15mPDX-SYD
$1,239
21/9Sat
1 stopHawaiian Airlines
18h 00mPDX-SYD
$1,277
21/9Sat
3 stopsUnited Airlines
48h 25mPDX-SYD
$1,498
3/6Mon
1 stopAir Canada
22h 55mPDX-SYD
$1,789
10/8Sat
1 stopAir Canada
22h 55mPDX-SYD
$1,819
9/8Fri
3 stopsUnited Airlines
29h 55mPDX-SYD
$1,878

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Last minute flights from Portland to Sydney

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Portland to Sydney that are departing in the next 10 days.
19/5Sun
multi-stop
25h 45mPDX-SYD
21/5Tue
multi-stop
43h 55mSYD-PDX
$2,410
19/5Sun
multi-stop
30h 25mPDX-SYD
21/5Tue
multi-stop
63h 46mSYD-PDX
$3,080
19/5Sun
multi-stop
29h 17mPDX-SYD
21/5Tue
multi-stop
25h 45mSYD-PDX
$3,166
19/5Sun
multi-stopQantas Airways
25h 45mPDX-SYD
21/5Tue
multi-stopQantas Airways
31h 58mSYD-PDX
$3,760
18/5Sat
multi-stopQatar Airways
47h 40mPDX-SYD
21/5Tue
multi-stopQatar Airways
38h 21mSYD-PDX
$4,960
19/5Sun
multi-stopUnited Airlines
29h 04mPDX-SYD
21/5Tue
multi-stopUnited Airlines
22h 22mSYD-PDX
$15,448

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Portland - Sydney Flights

Departure:

Portland (undefined)United States

Destination:

Sydney (SYD)Australia

Return flight deals:

Sydney - Portland

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