Q: How much does it cost for a return flight from Portland to Sydney?

Airfare is below average for this route at the moment. Portland to Sydney flights typically cost between $1,434 and $1,941 in August. The cheapest return flight price found within the last 3 days was $1,181 on Air Canada (21 Aug-4 Sept).

Question 1

What’s the top stopover airport for flights from Portland to Sydney?

Accepted Answer

San Francisco (SFO) – chosen by Cheapflights users on 90% of one-stop itineraries from Portland to Sydney on Cheapflights. Find deals

Question 2

What’s the cheapest stopover airport for flights from Portland to Sydney?

Accepted Answer

Vancouver (YVR) is the most affordable one-stop option, with an average return flight price of $1,391. Find deals

Question 3

Which airport typically offers the quickest stopover for flights from Portland to Sydney?

Accepted Answer

Flights via Vancouver (YVR) offer the fastest connection on this route, with an average stopover time of 1h 37m. Find deals

Question 4

What’s the fastest stopover option from Portland to Sydney?

Accepted Answer

Flights via Vancouver (YVR) have the shortest average one-way travel time for one-stop routes: 18h 40m. Find deals

Question 5

How much does it cost for a return flight from Portland to Sydney?

Accepted Answer

Airfare is below average for this route at the moment.Portland to Sydney flights typically cost between $1,434 and $1,941 in August.
The cheapest return flight price found within the last 3 days was $1,181 on Air Canada (21 Aug-4 Sept).

Question 6

What are the cheapest airlines flying from Portland to Sydney round-trip?

Accepted Answer

Cheapflights users have booked flights from Portland to Sydney round-trip from $1,181. Other airlines that can offer you cheap pricing are Qantas Airways, from $1,235, and American Airlines, from $1,239. You may be able to fly from Portland to Sydney for 33% less than the average price by searching for these airlines.

Question 7

What are the cheapest airlines to fly from Portland to Sydney one-way?

Accepted Answer

One-way options have recently been found by users for as low as $583 on Qantas Airways. Other airlines that offer cheap prices include American Airlines from $611 and Air New Zealand from $631 one-way.

Question 8

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

Accepted Answer

The best time to book flights from Portland to Sydney is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 9

What is the cheapest month to book a flight from Portland to Sydney?

Accepted Answer

Currently, May is the cheapest month in which you can book a flight from Portland to Sydney (average of $129). Flying from Portland to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 10

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

Accepted Answer

Travellers seeking maximum savings on their Portland to Sydney flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 11

E

Accepted Answer

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Question 12

E

Accepted Answer

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Question 13

What is the cheapest day to fly return from Portland to Sydney?

Accepted Answer

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 62% on your flight compared to booking on days when demand is much higher.

Question 14

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 26% on flights from Portland to Sydney compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,441. For sooner than that we have options available in the next 3 days from $2,393.

Question 15

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

Accepted Answer

Flights from Portland to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Portland to Sydney in September, with the cheapest ticket starting at $989.

Question 16

What is the cheapest time of day to fly from PDX to SYD?

Accepted Answer

One of the essential ways to save on airfare from Portland to Sydney is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.

Question 17

Can I find deals for flights from Portland to Sydney that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Portland to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 18

How can I find direct flights from Portland to Sydney?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Sydney.

Question 19

Can I find deals for business class flights from Portland to Sydney?

Accepted Answer

Yes. Cheapflights offers flight deals from Portland to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 20

How does Cheapflights help users find flights from Portland to Sydney?

Accepted Answer

Deals for Portland to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Portland to Sydney?

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Sydney.

Question 22

Can Cheapflights find flights from Portland to Sydney with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portland to Sydney flexibly with Cheapflights today.

Question 23

Can Cheapflights notify me if prices for flights from Portland to Sydney become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Portland today and book when prices fit your budget.

Round-trip from	$1,181
One-way from	$583
Popular in	December
Cheapest in	September
Average price	$1,765

Cheap flights from Portland to Sydney from $583

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Portland to Sydney Kingsford Smith are usually found in September or May, booked 88 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Sydney

Cheapest flights from Portland to SydneyExplore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Explore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Sydney that are best for you.

Best time to book a flight from Portland to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Portland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portland to Sydney

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

Use this chart to determine the optimal time to book a return flight from Portland to Sydney. Price data was last updated on 25 July 2025.

What is the cheapest month to book a flight from Portland to Sydney?

What is the cheapest time of day to fly from PDX to SYD?

Find hourly flight availability from Portland to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.

How much does it cost for a return flight from Portland to Sydney?

What’s the top stopover airport for flights from Portland to Sydney?

Share of one-stop return flights from Portland to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Portland to Sydney?

Average return fare for one-stop flights from Portland to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Portland to Sydney?

Shortest average travel time for one-stop one-way flights from Portland to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Portland to Sydney?

Average stopover duration for one-stop one-way flights from Portland to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 31 July 2025.

Read reviews from past customers who have flown with Air Tahiti Nui, Delta, andAir New Zealand from Portland to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portland to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Portland to Sydney round-trip?

What are the cheapest airlines to fly from Portland to Sydney one-way?

Can I find deals for flights from Portland to Sydney that include hotel bookings?

How can I find direct flights from Portland to Sydney?

Can I find deals for business class flights from Portland to Sydney?

What is the cheapest month to book a flight from Portland to Sydney?

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portland to Sydney

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Sydney?

Why should you use Cheapflights to find cheap flight tickets from Portland to Sydney?

Can Cheapflights find flights from Portland to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from Portland to Sydney become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portland to Sydney
Explore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.