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Cheap flights from Sydney to Portland from $969

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
10 Aug — 17 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Portland
Explore the most affordable flight options available from Sydney to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2026.

Thu 13/820:45
SYD
-
PDX
1 stop17h 05m
Alaska Airlines
Sat 22/808:00
PDX
-
SYD
1 stop17h 50m
Alaska Airlines
Deal found 6/7$1,355
Wed 5/812:00
SYD
-
PDX
1 stop23h 59m
American Airlines
Wed 12/806:35
PDX
-
SYD
1 stop31h 30m
American Airlines
Deal found 8/7$1,362
Mon 10/809:10
SYD
-
PDX
1 stop31h 49m
American Airlines
Mon 17/811:58
PDX
-
SYD
1 stop25h 57m
American Airlines
Deal found 6/7$1,379
Sat 8/813:15
SYD
-
PDX
2 stops24h 33m
Multiple Airlines
Sat 29/813:53
PDX
-
SYD
2 stops28h 57m
Multiple Airlines
Deal found 8/7$1,381
Wed 12/812:00
SYD
-
PDX
1 stop23h 59m
American Airlines
Wed 9/906:30
PDX
-
SYD
1 stop31h 35m
American Airlines
Deal found 10/7$1,384
Tue 4/809:10
SYD
-
PDX
1 stop30h 29m
American Airlines
Tue 11/811:58
PDX
-
SYD
1 stop25h 57m
American Airlines
Deal found 7/7$1,387
Thu 15/1020:45
SYD
-
PDX
1 stop27h 34m
Alaska Airlines
Sun 18/1010:30
PDX
-
SYD
1 stop38h 20m
Alaska Airlines
Deal found 7/7$1,388
Thu 15/1010:10
SYD
-
PDX
2 stops29h 01m
American Airlines
Sun 18/1011:58
PDX
-
SYD
2 stops26h 07m
American Airlines
Deal found 8/7$1,411
Sun 9/820:45
SYD
-
PDX
1 stop26h 26m
Alaska Airlines
Mon 24/808:00
PDX
-
SYD
1 stop17h 50m
Alaska Airlines
Deal found 10/7$1,415

Find flight deals from Sydney to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2026.

Round-trip from

$1,355

One-way from

$969

Popular in

March

Cheapest in

November

Average price

$1,371
Alaska Airlines
  • Alaska Airlines
  • 13/8-22/8
  • 2 total stops
  • 34h 55m total
  • Sydney to Portland
Search Deals
Delta
  • Delta
  • 1/8
  • 1 total stop
  • 20h 05m total
  • Sydney to Portland
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($266 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 11 July 2026.
Use the filters below to find and compare flights from Sydney to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 15/10

20:45-06:19

1 stop27h 34m

Portland

Sun 18/10

10:30-18:50

1 stop38h 20m

$1,388

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 15/10

10:10-21:11

2 stops29h 01m

Portland

Sun 18/10

11:58-08:05

2 stops26h 07m

$1,411

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 8/8

17:50-20:48

1 stop19h 58m

Portland

Sat 29/8

13:53-07:30

1 stop24h 37m

$1,427

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sun 6/9

09:10-23:40

2 stops31h 30m

Portland

Wed 9/9

06:01-07:05

2 stops32h 04m

$1,430

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/8

09:15-12:24

1 stop20h 09m

Portland

Wed 9/9

05:30-06:50

2 stops32h 20m

$1,437
Fastest return journey

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 15/10

10:30-17:46

2 stops25h 16m

Portland

Sun 18/10

19:29-07:55

1 stop18h 26m

$1,438

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/8

09:30-18:19

3 stops25h 49m

Portland

Wed 9/9

12:45-07:00

2 stops25h 15m

$1,456
Cheapest one-way

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 1/8

09:15-12:20

1 stop20h 05m

$969

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 1/8

17:50-11:35

1 stop34h 45m

$1,049
Fastest single journey

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 23/12

21:25-20:48

1 stop18h 23m

$1,470

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, November is the cheapest month in which you can book a flight from Sydney to Portland (average of $1,159). Flying from Sydney to Portland in March is currently the most expensive (average of $1,781). 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.

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

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 11 July 2026.
Read reviews from past customers who have flown with Delta,Qantas Airways, andUnited Airlines from Sydney to Portland. 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.
Delta
7.8
Good
8,459 reviews
Check prices

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,459 reviews
Delta
7.8
Good
8,459 reviews
Check prices

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Qantas Airways
7.5
Good
1,060 reviews
Delta
7.8
Good
8,459 reviews
Check prices

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
9,976 reviews
Delta
7.8
Good
8,459 reviews
Check prices

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Air Canada
7.1
Good
11,327 reviews
Delta
7.8
Good
8,459 reviews
Check prices

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

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

  • How long is the flight from Sydney to Portland?

    Alaska Airlines, American Airlines, and Qantas Airways can get you from Sydney to Portland in just under 19h 58m. Your travel time can differ by up to 9h 03m. There are 12350 km between Sydney and Portland. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at $759, Delta will fly you from Sydney to Portland and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from $922 and $1,129, respectively. These flights start at 49% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Sydney to Portland?

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Sydney to Portland (average of $1,159). Flying from Sydney to Portland in March is currently the most expensive (average of $1,781). 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.

See more FAQs

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.

Top 4 airlines flying from Sydney to Portland

Discover the top 4 airlines that operate flights from Sydney to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 11 July 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$759Average$1,700FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$922Average$1,586FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,129Average$1,484FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,301Average$1,615FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

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 Sydney to Portland?

Cheapflights helps you search for flights from Sydney to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sydney to Portland for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Portland, users can toggle the no change fees filter when performing a flight search.

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

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

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