PDX - SYD

$759 Find Cheap Flights from Portland to Sydney – Compare and Save

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Everything you should know

Cheapest return flight
$1,415
Typical prices: $1,642-$2,320
Qantas Airways
Thu 1/3Sat 10/3
PDX - SYD • 2 stops
Cheapest one-way flight
$759
Typical prices: $821-$1,165
Alaska Airlines
Sat 10/3
PDX - SYD • 1 stop
Direct flights
Not available
There are currently no direct flights between Portland and Sydney. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
26 weeks
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
September
Cheapest • 15% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Honolulu (HNL)
Cheapest • Avg $1,827 (return)
Vancouver Intl (YVR)
Shortest trip • 18h 24m (one-way)
Insights
Insights
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We hope you enjoy your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Sydney (PDX-SYD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portland to Sydney

Mon, 1 Mar - Wed, 10 Mar
Qantas Airways Logo
17:40 - 20:50PDX  Portland-SYD Sydney Kingsford Smith
32h 10m2 stops Los Angeles Auckland Intl
Qantas Airways Logo
11:20 - 20:31SYD  Sydney Kingsford Smith-PDX Portland
28h 11m1 stop Los Angeles
$1,415Qantas Airways
Sat, 14 Nov - Tue, 24 Nov
Air Canada Logo
19:10 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
19h 25m1 stop Vancouver Intl
Air Canada Logo
11:20 - 14:41SYD  Sydney Kingsford Smith-PDX Portland
22h 21m1 stop Vancouver Intl
$1,524Air Canada
Tue, 23 Feb - Tue, 16 Mar
Alaska Airlines Logo
17:50 - 19:45PDX  Portland-SYD Sydney Kingsford Smith
30h 55m1 stop Honolulu
Alaska Airlines Logo
21:40 - 06:00SYD  Sydney Kingsford Smith-PDX Portland
26h 20m1 stop Honolulu
$1,542Alaska Airlines
Sat, 14 Nov - Tue, 24 Nov
Multiple Airlines Logo
19:10 - 21:15PDX  Portland-SYD Sydney Kingsford Smith
31h 05m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
11:20 - 09:26SYD  Sydney Kingsford Smith-PDX Portland
17h 06m1 stop Vancouver Intl
$1,547Multiple Airlines
Mon, 1 Feb - Fri, 12 Feb
Air Canada Logo
19:10 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
19h 25m1 stop Vancouver Intl
Air Canada Logo
11:20 - 18:31SYD  Sydney Kingsford Smith-PDX Portland
26h 11m1 stop Vancouver Intl
$1,617Air Canada
Mon, 1 Feb - Fri, 12 Feb
United Airlines Logo
13:21 - 09:05PDX  Portland-SYD Sydney Kingsford Smith
24h 44m2 stops Denver Intl Los Angeles
United Airlines Logo
11:20 - 17:51SYD  Sydney Kingsford Smith-PDX Portland
25h 31m2 stops Los Angeles Denver Intl
$1,677United Airlines
Mon, 1 Mar - Wed, 10 Mar
Air Canada Logo
15:15 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air Canada Logo
11:20 - 14:40SYD  Sydney Kingsford Smith-PDX Portland
22h 20m1 stop Vancouver Intl
$1,684Air Canada
Mon, 22 Feb - Tue, 9 Mar
Qantas Airways Logo
13:30 - 10:20PDX  Portland-SYD Sydney Kingsford Smith
25h 50m2 stops Los Angeles Brisbane
Qantas Airways Logo
21:00 - 20:50SYD  Sydney Kingsford Smith-PDX Portland
18h 50m1 stop Las Vegas Harry Reid Intl
$1,688Qantas Airways
Tue, 5 Jan - Wed, 10 Feb
Qantas Airways Logo
14:45 - 06:35PDX  Portland-SYD Sydney Kingsford Smith
20h 50m1 stop Las Vegas Harry Reid Intl
Qantas Airways Logo
11:05 - 13:50SYD  Sydney Kingsford Smith-PDX Portland
21h 45m2 stops Brisbane Los Angeles
$1,940Qantas Airways
Mon, 30 Nov - Wed, 16 Dec
United Airlines Logo
15:40 - 09:20PDX  Portland-SYD Sydney Kingsford Smith
22h 40m1 stop San Francisco
United Airlines Logo
09:15 - 12:17SYD  Sydney Kingsford Smith-PDX Portland
22h 02m1 stop Houston George Bush Intcntl
$2,059United Airlines
Booking Insights

Price, demand, and travel trends for Portland to Sydney flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Portland to Sydney?

Return flights from Portland to Sydney typically range from $1,642 to $2,320. The lowest price found in the past 5 days was $1,415 on Qantas Airways.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Portland to Sydney. It's 5% cheaper than the average day, while Thursday is the most expensive, with prices 13% higher.

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

•September is the cheapest month to fly from Portland to Sydney at $1,522 return.
•December ($2,604) and January ($1,844) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Portland to Sydney the cheapest?

Flights from Portland to Sydney are cheapest 26 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Portland to Sydney flights

Low season

September

Cheapest flight

$759
Beat the crowds with an average 39% drop in travellers.
The most popular month to fly with an average 58% increase in travellers.
One-way 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

Your Portland to Sydney flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Portland to Sydney?

    Only Economy class is available on flights from Portland to Sydney.

  • How long is a flight from Portland to Sydney?

    A direct flight from Portland to Sydney takes 00m, covering 19,875 km.

  • Do I need a passport to fly from Portland to Sydney?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Portland to Sydney flight?

    Return flights from Portland to Sydney range from $1,642 to $2,320, with an average of $1,796 over the past 12 months. Anything below $1,642 counts as a good deal.

  • How expensive are last-minute Portland to Sydney flights?

    Last-minute fares on this route (booked within two weeks of departure) run 36% above the $1,796 route average. Book 26 weeks before departure for the lowest fares.

  • How are flight prices from Portland to Sydney looking right now?

    One-way fares from Portland to Sydney are currently in line with typical prices for this route. Average one-way fares are about $938.

  • Which car hire options are available at Sydney Kingsford Smith Airport (SYD)?

    Sydney Kingsford Smith Airport (SYD) hosts 5 major car hire companies, with daily rates starting from around $58 for economy cars. Top options include:

    • East Coast Car Rentals
    • Bargain Car Rentals
    • YESDRIVE CAR RENTAL
    • No Birds
    • EverythingFleet

  • Which airports can I use when flying from Portland to Sydney?

    Flights from Portland to Sydney usually depart from Portland (PDX) and arrive at Sydney Kingsford Smith (SYD).

  • Which airports do connecting flights from Portland to Sydney pass through?

    One-stop flights from Portland to Sydney most commonly connect through:

    • Vancouver Intl (YVR) – 38% of one-stop connections
    • Los Angeles (LAX) – 24% of one-stop connections
    • Honolulu (HNL) – 20% of one-stop connections
    • San Francisco (SFO) – 18% of one-stop connections

  • Can I save money by using flexible dates for flights from Portland to Sydney?

    Yes. Flexible dates can save you up to 16% on flights from Portland to Sydney. Monday is the cheapest departure day at $1,714 return on average, while Thursday is the most expensive at $2,038, a difference of $324.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Portland to Sydney?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time of 18h 24m, compared to 19h 23m via Honolulu (HNL) and 19h 32m via San Francisco (SFO).

  • What is the time difference between Portland and Sydney?

    Sydney is 18 hours ahead of Portland (Eastern Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Sydney?

    Some of the most popular sights in Sydney are Sydney Opera House, Star Casino, and Capitol Theatre. These are among the most viewed places in Sydney on KAYAK.

  • 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.

Your guide to booking Portland to Sydney flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $1,714, about $324 less than Thursday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Portland to Sydney trip for September. Fares historically average $1,522 return in that month – typically $1,082 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sydney Kingsford Smith Airport.

    • ibis budget Sydney Airport
    • Travelodge Hotel Sydney Airport
    • Rydges Sydney Airport Hotel
  • 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.

More options for your flight from Portland to Sydney

Complete your trip to Sydney with a hotel stay or car hire

Car hire in Sydney
Hotels in Sydney
Holidays in Sydney