PDX - SYD

$860 Find Cheap Flights from Portland to Sydney – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$1,490
Typical prices: $1,604-$2,271
Air Canada
Fri 9/2Fri 16/2
PDX - SYD • 1 stop
Cheapest one-way flight
$770
Typical prices: $809-$1,099
Multiple Airlines
Tue 30/10
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
15 weeks
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
September
Cheapest • 14% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Honolulu (HNL)
Cheapest • Avg $1,773 (return)
Vancouver Intl (YVR)
Shortest trip • 18h 27m (one-way)
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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

Tue, 9 Feb - Tue, 16 Feb
Multiple Airlines Logo
15:15 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Multiple Airlines Logo
09:00 - 09:26SYD  Sydney Kingsford Smith-PDX Portland
19h 26m2 stops Brisbane Vancouver Intl
$1,490Multiple Airlines
Mon, 22 Feb - Tue, 2 Mar
Multiple Airlines Logo
19:10 - 13:50PDX  Portland-SYD Sydney Kingsford Smith
23h 40m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
11:20 - 20:45SYD  Sydney Kingsford Smith-PDX Portland
28h 25m1 stop Vancouver Intl
$1,510Multiple Airlines
Wed, 18 Nov - Mon, 23 Nov
Air Canada Logo
15:15 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air Canada Logo
11:20 - 14:41SYD  Sydney Kingsford Smith-PDX Portland
22h 21m1 stop Vancouver Intl
$1,512Air Canada
Sun, 14 Feb - Sun, 28 Feb
Air Canada Logo
10:00 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
28h 35m1 stop Vancouver Intl
Air Canada Logo
11:20 - 09:26SYD  Sydney Kingsford Smith-PDX Portland
17h 06m1 stop Vancouver Intl
$1,514Air Canada
Tue, 23 Feb - Tue, 16 Mar
Air Canada Logo
15:15 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air Canada Logo
10:20 - 14:40SYD  Sydney Kingsford Smith-PDX Portland
22h 20m1 stop Vancouver Intl
$1,514Air Canada
Tue, 1 Dec - Mon, 15 Mar
Multiple Airlines Logo
07:00 - 06:55PDX  Portland-SYD Sydney Kingsford Smith
28h 55m1 stop Vancouver Intl
Multiple Airlines Logo
06:20 - 09:25SYD  Sydney Kingsford Smith-PDX Portland
21h 05m2 stops Brisbane Vancouver Intl
$1,530Multiple Airlines
Thu, 18 Feb - Wed, 3 Mar
Qantas Airways Logo
17:40 - 13:15PDX  Portland-SYD Sydney Kingsford Smith
24h 35m2 stops Los Angeles Los Angeles Brisbane
Qantas Airways Logo
21:25 - 20:48SYD  Sydney Kingsford Smith-PDX Portland
18h 23m1 stop San Francisco
$1,652Qantas Airways
Tue, 13 Oct - Tue, 20 Oct
United Airlines Logo
13:03 - 07:55PDX  Portland-SYD Sydney Kingsford Smith
24h 52m1 stop San Francisco
United Airlines Logo
11:20 - 10:10SYD  Sydney Kingsford Smith-PDX Portland
16h 50m1 stop San Francisco
$1,835United Airlines
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
13:15 - 09:05PDX  Portland-SYD Sydney Kingsford Smith
24h 50m2 stops Denver Intl Los Angeles Los Angeles
United Airlines Logo
11:20 - 18:24SYD  Sydney Kingsford Smith-PDX Portland
26h 04m3 stops Los Angeles Los Angeles Denver Intl San Francisco
$1,842United Airlines
Thu, 1 Oct - Thu, 8 Oct
Qantas Airways Logo
06:30 - 07:05PDX  Portland-SYD Sydney Kingsford Smith
31h 35m1 stop Los Angeles Los Angeles
Qantas Airways Logo
17:10 - 23:16SYD  Sydney Kingsford Smith-PDX Portland
24h 06m2 stops Brisbane Los Angeles Los Angeles
$2,072Qantas Airways
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 from Portland to Sydney with more confidence.

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

Monday is the cheapest day of the week to fly from Portland to Sydney and is 4% cheaper than the average day. Thursday is the most expensive day with flight prices 13% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • September is the cheapest month to fly from Portland to Sydney at $1,499 return.
  • December ($2,503) and July ($1,841) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 67% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Portland to Sydney the cheapest?

Flights from Portland to Sydney are cheapest 15 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Portland to Sydney flights

Low season

September

Cheapest flight

$770
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flights 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 route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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.

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

    Two cabin classes are available on flights from Portland to Sydney:

    • Economy class
    • Premium Economy Class

  • 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) – 35% of one-stop connections
    • Los Angeles Los Angeles (LAX) – 25% of one-stop connections
    • Honolulu (HNL) – 22% of one-stop connections
    • San Francisco (SFO) – 19% of one-stop connections

    Vancouver Intl (YVR) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 16% on the Portland to Sydney route. Monday is the cheapest departure day at $1,688 return on average, while Thursday is the most expensive at $1,988, a difference of $300. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

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

    Last-minute fares on this route (booked within 2 weeks of departure) run 33% above the route average of $1,747. Book 15 weeks before departure for the lowest fares.

  • How long is a flight from Portland to Sydney?

    A direct flight from Portland to Sydney takes 0h 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 are flight prices from Portland to Sydney looking right now?

    One-way fares from Portland to Sydney are currently higher than usual. Average one-way flight prices are about $970, which is 9% above the typical average for this route.

  • 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 27m, compared to 19h 23m via San Francisco (SFO) and 20h 33m via Honolulu (HNL).

  • What is the time difference between Portland and Sydney?

    Sydney is 17 hours ahead of Portland (Eastern Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • 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 $14 for economy cars. Top options include:
    • Bargain Car Rentals
    • East Coast Car Rentals
    • EverythingFleet
    • YESDRIVE CAR RENTAL
    • No Birds

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

    Return flights from Portland to Sydney range from $1,604 to $2,271, with an average of $1,747 over the past 12 months. Anything below $1,604 counts as a good deal.

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 instead of Thursday. On this route, Monday flights average $1,688 – about $300 less than Thursday (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 31% 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 $1,499 return in that month – typically $1,004 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.
    - Travelodge Hotel Sydney Airport
    - Rydges Sydney Airport Hotel
    - ibis budget Sydney Airport
  • 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