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Cheap flights from Sydney to Portland from $754

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
27 Mar — 3 Apr1
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 25 February 2026.

Fri 15/513:15
SYD
-
PDX
2 stops24h 35m
Multiple Airlines
Mon 25/517:40
PDX
-
SYD
2 stops25h 25m
Multiple Airlines
Deal found 21/2$1,425
Sat 28/211:20
SYD
-
PDX
1 stop29h 38m
American Airlines
Sun 15/306:28
PDX
-
SYD
1 stop32h 32m
American Airlines
Deal found 24/2$1,453
Tue 19/511:55
SYD
-
PDX
2 stops26h 03m
Air New Zealand
Tue 26/511:16
PDX
-
SYD
2 stops28h 29m
Air New Zealand
Deal found 24/2$1,462
Tue 19/509:15
SYD
-
PDX
1 stop17h 42m
Delta
Tue 26/510:52
PDX
-
SYD
1 stop26h 58m
Delta
Deal found 24/2$1,486
Thu 5/311:20
SYD
-
PDX
1 stop29h 38m
American Airlines
Wed 18/317:38
PDX
-
SYD
1 stop21h 22m
American Airlines
Deal found 22/2$1,497
Mon 2/311:20
SYD
-
PDX
1 stop24h 53m
Qantas Airways
Wed 1/417:38
PDX
-
SYD
1 stop20h 27m
Qantas Airways
Deal found 21/2$1,509
Sun 1/314:00
SYD
-
PDX
2 stops38h 42m
Multiple Airlines
Tue 31/310:31
PDX
-
SYD
2 stops32h 19m
Multiple Airlines
Deal found 21/2$1,513
Wed 18/317:00
SYD
-
PDX
2 stops22h 52m
Qantas Airways
Sun 22/317:38
PDX
-
SYD
1 stop21h 22m
Qantas Airways
Deal found 21/2$1,520
Tue 24/214:05
SYD
-
PDX
1 stop26h 47m
American Airlines
Sat 14/323:59
PDX
-
SYD
1 stop36h 56m
American Airlines
Deal found 23/2$1,526
Tue 24/211:50
SYD
-
PDX
2 stops43h 48m
United Airlines
Sat 14/319:49
PDX
-
SYD
1 stop40h 31m
United Airlines
Deal found 23/2$1,530

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 25 February 2026.

Round-trip from

$1,425

One-way from

$754

Popular in

May

Cheapest in

January

Average price

$1,422
15/5-25/5
  • 15/5-25/5
  • 4 total stops
  • 50h 00m total
  • Sydney to Portland
Search Deals
Qantas Airways
  • Qantas Airways
  • 23/3
  • 2 total stops
  • 22h 17m total
  • Sydney to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($298 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 25 February 2026.
Use the filters below to find and compare flights from Sydney to Portland that are best for you.

Fly from

Sydney

Fly to

Portland

Route

Depart

Return

Price

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 15/5

13:15-20:50

2 stops24h 35m

Portland

Mon 25/5

17:40-12:05

2 stops25h 25m

$1,425

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 18/3

11:20-17:08

1 stop23h 48m

Portland

Sun 22/3

17:38-09:00

1 stop21h 22m

$1,509

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 18/3

09:40-12:35

2 stops20h 55m

Portland

Sun 22/3

05:30-06:05

2 stops30h 35m

$1,530

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 14/5

09:30-19:38

2 stops27h 08m

Portland

Sun 19/7

12:50-07:00

2 stops25h 10m

$1,530

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 15/5

09:10-12:39

1 stop20h 29m

Portland

Mon 25/5

15:38-07:05

1 stop22h 27m

$1,550

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sun 24/5

09:10-22:27

1 stop30h 17m

Portland

Thu 28/5

15:38-07:05

1 stop22h 27m

$1,582

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 15/5

09:30-18:46

3 stops26h 16m

Portland

Mon 25/5

12:50-07:00

2 stops25h 10m

$1,589

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 10/4

09:15-16:01

2 stops23h 46m

Portland

Fri 17/4

16:35-06:50

1 stop21h 15m

$1,951

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 11/4

09:20-09:10

1 stop16h 50m

Portland

Fri 17/4

15:15-22:20

2 stops38h 05m

$2,029

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 1/5

13:15-20:00

2 stops23h 45m

$863

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 17 results
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

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

Use this chart to determine the optimal time to book a return flight from Sydney to Portland. Price data was last updated on 20 February 2026.

Booking 2 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Sydney to Portland (average of $817). Flying from Sydney to Portland in July is currently the most expensive (average of $1,309). 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 25 February 2026.
Read reviews from past customers who have flown with Alaska Airlines, Hawaiian Airlines, andQantas Airways 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.
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Alaska Airlines
8.0
Very Good
11,950 reviews
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Hawaiian Airlines
7.8
Good
2,836 reviews
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Qantas Airways
7.5
Good
998 reviews
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
United Airlines
7.4
Good
9,343 reviews
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Air Canada
7.1
Good
10,746 reviews
Alaska Airlines
8.0
Very Good
11,950 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

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?

    Qantas Airways, Delta, and United Airlines can get you from Sydney to Portland in just under 20h 55m. Your travel time can differ by up to 6h 13m. 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 $748, 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 Hawaiian Airlines - these airlines can fly you to your destination from $910 and $1,058, respectively. These flights start at 48% 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, January is the cheapest month in which you can book a flight from Sydney to Portland (average of $817). Flying from Sydney to Portland in July is currently the most expensive (average of $1,309). 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 7 airlines flying from Sydney to Portland

Discover the top 7 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 25 February 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$748Average$1,674FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$910Average$1,562FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Hawaiian AirlinesCheapest$1,058Average$1,804FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Air CanadaCheapest$1,084Average$1,430FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapest$1,164Average$1,731FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Qantas AirwaysCheapest$1,277Average$1,536FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Alaska AirlinesCheapest$1,278Average$1,727FlexibilityNo cancel feeOn-timeN/A
Search Alaska Airlines 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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