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PDX - SYD

Find cheap flights from Portland to Sydney from $657

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 27/6. 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 26/5
Sun 2/6

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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 44,335,567 times on KAYAK, and here's why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
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 - 23:30SYD-PDX
24h 10m1 stop
$1,548
Find Deal
Thu, 15 Aug - Thu, 5 Sep
08:35 - 14:40PDX-SYD
37h 05m1 stop
16:20 - 22:55SYD-PDX
23h 35m1 stop
$1,618
Find Deal
Thu, 5 Sep - Mon, 16 Sep
08:30 - 19:45PDX-SYD
18h 15m1 stop
21:40 - 23:30SYD-PDX
18h 50m1 stop
$1,652Hawaiian Airlines
Find Deal
Wed, 14 Aug - Tue, 3 Sep
10:25 - 07:00PDX-SYD
27h 35m1 stop
11:20 - 12:29SYD-PDX
19h 09m1 stop
$1,675United Airlines
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Tue, 24 Sep - Tue, 8 Oct
16:01 - 06:55PDX-SYD
21h 54m2 stops
11:20 - 18:34SYD-PDX
25h 14m1 stop
$1,676United Airlines
Find Deal
Tue, 24 Sep - Tue, 8 Oct
19:40 - 07:00PDX-SYD
18h 20m1 stop
09:30 - 20:54SYD-PDX
28h 24m2 stops
$1,683United Airlines
Find Deal
Mon, 5 Aug - Mon, 26 Aug
15:25 - 07:20PDX-SYD
22h 55m1 stop
09:20 - 22:12SYD-PDX
29h 52m1 stop
$1,750Air Canada
Find Deal
Thu, 1 Aug - Sun, 4 Aug
13:20 - 06:35PDX-SYD
24h 15m1 stop
09:25 - 19:06SYD-PDX
26h 41m1 stop
$1,787Delta
Find Deal
Wed, 11 Sep - Sat, 21 Sep
18:55 - 08:20PDX-SYD
19h 25m1 stop
09:00 - 17:21SYD-PDX
27h 21m2 stops
$1,850Air Canada
Find Deal
Sun, 13 Oct - Wed, 13 Nov
13:20 - 06:35PDX-SYD
24h 15m1 stop
09:25 - 15:43SYD-PDX
23h 18m1 stop
$1,864Delta
Find Deal
Sat, 17 Aug - Sat, 24 Aug

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 May, where tickets cost $1,656 on average. On the other hand, the most expensive months are December and January, where the average cost of tickets is $3,279 and $2,418 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 5 days before departure. For the absolute cheapest price, our data suggests you should book 59 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 Hawaiian Airlines for $1,067. Hawaiian Airlines proposed a return connection from $1,652 and United Airlines from $1,675.

Good to know

Low season

April

High season

August

Cheapest flight

$657
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly and prices are also 11% 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 $428 for a one-way ticket and $1,008 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 $1,766 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 $1,824 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

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 11228 reviews
7.1entertainment
7.7boarding
7.2comfort
6.7food
8.1crew
Airline reviews

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

10.0 ExcellentJacqueline, Apr 2024ORD - NRT
Read more about United Airlines reviews

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

So so. Terrible aircraft choice for that leg of the flight.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Terrible experience! All flights delayed, staff had no idea of what they were doing, and at the end luggage lost for 2 days!

Cabin crew were great. Seats are criminal for tall people

Flight was delayed 1.5 hrs due to problem with a previous flight to mine; I was informed appropriately via Text & Email, however, website did not keep up with messages sent by nearly an hour. When checking-in warm & friendly reception at check-in desk until female Air Canada Rep noticed my flight number and instantly pivoted to a condescending & sarcastic comments about getting my bag checked in since I’m running so late; then tone instantly changed again few minutes later when she muttered, “Oh, they’ve delayed it” another sign systems & worse front line staff, not fully informed or simply not reading their flight status updates. Flight crew were very friendly & did a great job trying to make up lost time due to the delay.

It was great, love the experience and will definitely recommend 👌. Communication was great

My flight was great! Gate attendants and crew were great… pleasant and in good spirits. Flight delayed several hours and we were well informed of the status while on plane. Thank you!

The fact that I got to Toronto alive and well and safe is a huge plus. I thank the captain and crew for a safe flight The comfort of the aircraft leaves much to be desired. Human beings should not have to be that cramped and squashed on a flight that we pay a lot for and even have to pay for lousy food choices The cabin crew were pleasant and helpful Kudos to them as the flight was packed to capacity and there was a lot of work for them in a short space of time All in all a good experience, but too cramped

It was great to check carryon luggage at no charge when there was no room for ours. A hidden benefit of having low-tier tickets. Also great to stay off plane as long as possible. Airline gave us seats we wanted on this last leg, again at no charge.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

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.
27/6Thu
2 stops
36h 00mPDX-SYD
$657
27/6Thu
1 stop
37h 10mPDX-SYD
$734
6/8Tue
2 stops
44h 00mPDX-SYD
$812
27/6Thu
1 stop
37h 10mPDX-SYD
$821
20/9Fri
1 stopHawaiian Airlines
18h 05mPDX-SYD
$1,067
20/9Fri
2 stopsChina Southern
35h 40mPDX-SYD
$1,296
21/9Sat
1 stopHawaiian Airlines
18h 05mPDX-SYD
$1,308
21/9Sat
3 stopsUnited Airlines
48h 25mPDX-SYD
$1,535
26/6Wed
2 stopsUnited Airlines
37h 40mPDX-SYD
$1,927
27/6Thu
3 stopsAir Canada
31h 20mPDX-SYD
$3,953

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Portland - Sydney Flights

Departure:

Portland (PDX)United States

Destination:

Sydney (SYD)Australia

Return flight deals:

Sydney - Portland

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