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Cheap flights from Sydney to Portland from $740

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
10 May — 17 May1
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 10 April 2026.

Fri 22/513:15
SYD
-
PDX
2 stops24h 20m
Multiple Airlines
Fri 29/517:59
PDX
-
SYD
2 stops24h 51m
Multiple Airlines
Deal found 6/4$1,382
Fri 4/913:15
SYD
-
PDX
2 stops24h 35m
Multiple Airlines
Fri 18/918:50
PDX
-
SYD
2 stops24h 00m
Multiple Airlines
Deal found 8/4$1,406
Fri 15/513:15
SYD
-
PDX
2 stops24h 20m
Multiple Airlines
Mon 25/517:40
PDX
-
SYD
2 stops25h 10m
Multiple Airlines
Deal found 6/4$1,437
Thu 7/513:15
SYD
-
PDX
2 stops24h 37m
Multiple Airlines
Thu 14/514:33
PDX
-
SYD
2 stops28h 17m
Multiple Airlines
Deal found 6/4$1,522
Thu 23/413:15
SYD
-
PDX
2 stops24h 20m
Multiple Airlines
Wed 6/517:49
PDX
-
SYD
2 stops25h 01m
Multiple Airlines
Deal found 7/4$1,569
Sun 26/713:15
SYD
-
PDX
2 stops27h 41m
Multiple Airlines
Sun 2/817:37
PDX
-
SYD
2 stops25h 13m
Multiple Airlines
Deal found 7/4$1,582
Fri 4/920:45
SYD
-
PDX
1 stop26h 29m
Alaska Airlines
Fri 18/908:19
PDX
-
SYD
1 stop17h 31m
Alaska Airlines
Deal found 8/4$1,596
Sat 9/520:45
SYD
-
PDX
1 stop25h 26m
Multiple Airlines
Sat 16/508:00
PDX
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 9/4$1,622
Thu 23/409:10
SYD
-
PDX
2 stops30h 53m
American Airlines
Wed 6/506:00
PDX
-
SYD
1 stop32h 05m
American Airlines
Deal found 7/4$1,643

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 10 April 2026.

Round-trip from

$1,382

One-way from

$740

Popular in

May

Cheapest in

November

Average price

$1,732
22/5-29/5
  • 22/5-29/5
  • 4 total stops
  • 49h 11m total
  • Sydney to Portland
Search Deals
12/9
  • 12/9
  • 3 total stops
  • 29h 30m total
  • Sydney to Portland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($356 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($43 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 10 April 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

Fri 22/5

13:15-20:35

2 stops24h 20m

Portland

Fri 29/5

17:59-11:50

2 stops24h 51m

$1,382
Fastest return journey

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Tue 1/9

20:45-20:46

1 stop17h 01m

Portland

Wed 16/9

08:19-18:50

1 stop17h 31m

$1,701

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 9/5

20:45-09:38

2 stops29h 53m

Portland

Sat 16/5

08:00-18:50

1 stop17h 50m

$1,712

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 9/5

09:30-18:46

3 stops26h 16m

Portland

Sat 16/5

23:55-06:55

2 stops38h 00m

$1,766

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 4/9

20:45-20:46

1 stop17h 01m

Portland

Sat 19/9

08:19-18:50

1 stop17h 31m

$2,095

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 5/9

20:45-20:46

1 stop17h 01m

Portland

Sun 20/9

17:35-18:50

1 stop32h 15m

$2,112

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 2/9

09:30-18:11

3 stops25h 41m

Portland

Mon 21/9

19:13-06:55

1 stop18h 42m

$2,133

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 2/9

09:30-18:11

3 stops25h 41m

Portland

Sun 20/9

19:13-06:55

1 stop18h 42m

$2,133

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 2/9

09:30-18:11

3 stops25h 41m

Portland

Wed 16/9

19:13-06:55

1 stop18h 42m

$2,133

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 3/9

09:30-15:05

2 stops22h 35m

Portland

Tue 15/9

12:50-06:55

2 stops25h 05m

$2,164

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 20 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

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 3 April 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 $825). Flying from Sydney to Portland in April is currently the most expensive (average of $1,535). 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 10 April 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
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,207 reviews
Alaska Airlines
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,839 reviews
Alaska Airlines
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Qantas Airways
7.5
Good
1,018 reviews
Alaska Airlines
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,562 reviews
Alaska Airlines
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Air Canada
7.1
Good
10,915 reviews
Alaska Airlines
7.9
Good
12,207 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Food

7.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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 and United Airlines can get you from Sydney to Portland in just under 17h 01m. Your travel time can differ by up to 9h 15m. 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 Air Canada - these airlines can fly you to your destination from $910 and $1,113, 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, January is the cheapest month in which you can book a flight from Sydney to Portland (average of $825). Flying from Sydney to Portland in April is currently the most expensive (average of $1,535). 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$748Average$1,675FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$910Average$1,563FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,113Average$1,474FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Hawaiian AirlinesCheapest$1,134Average$1,871FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapest$1,164Average$1,732FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Alaska AirlinesCheapest$1,278Average$1,728FlexibilityNo cancel feeOn-timeN/A
Search Alaska Airlines flights
Qantas AirwaysCheapest$1,282Average$1,774FlexibilityNo 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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