$484 Find Cheap Flights from Portland to Australia - Compare and Save

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Cheap Flights from Portland to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sydney
Sydney2 stops$1,109
Melbourne
Melbourne2 stops$1,171
Brisbane
Brisbane1 stop$1,183
Perth
Perth2 stops$1,653
Adelaide
Adelaide1 stop$1,747
Canberra
Canberra2 stops$1,756
Sydney
Sydney2 stops$1,109
Melbourne
Melbourne2 stops$1,171
Brisbane
Brisbane1 stop$1,183
Perth
Perth2 stops$1,653
Adelaide
Adelaide1 stop$1,747
Canberra
Canberra2 stops$1,756
Booking Insights

Price, demand and travel trends for Portland to Australia flights

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

Are flights from Portland to Australia cheaper or more expensive than last year?

Fares from Portland to Australia are running about 4% lower than they were around this time last year, averaging $1,187 round-trip.

What are the cheapest fares from Portland to Australia right now?

Here are the cheapest round-trip fares from Portland to Australia on KAYAK in the last week:

• Sydney Kingsford Smith (SYD) from $1,109
• Melbourne (MEL) from $1,171
• Brisbane (BNE) from $1,183
• Perth (PER) from $1,325
• Cairns (CNS) from $1,539

What’s the cheapest month to fly from Portland to Australia?

June is the cheapest time of year to fly, with average fares of $1,092. Prices are highest in December, when average flight costs increase to around $1,625.

When is the best time to book flights from Portland to Australia?

Book your flights 26 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 33% compared to booking last-minute (within 2 weeks of departure).

Which airport in Australia is the cheapest to fly to from Portland?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Australia are:

• Brisbane (BNE) (avg. price $1,080)
• Cairns (CNS) (avg. price $1,160)
• Melbourne (MEL) (avg. price $1,170)

What’s the cheapest day to fly from Portland to Australia?

Tuesday tends to be the cheapest day to fly from Portland to Australia, while Thursday is the most expensive. Fares run about 19% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Portland to Australia?

Data from the past 12 months shows it's cheapest to fly to Australia during the afternoon with average prices of $1,251. The morning is the most expensive time to fly, with average prices of $1,318.

Key details for Portland to Australia flights

Low season

October

Cheapest flight

$484
Beat the crowds with an average 28% drop in travelers.
The most popular month to fly with an average 45% increase in travelers.
One-way flight from Portland to Melbourne Airport

Your Portland to Australia flight questions, answered

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

  • Is now a good time to book a flight from Portland to Australia?

    Fares from Portland to Australia are around their usual level right now. A round-trip under $1,073 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

  • How much should I budget for a flight from Portland to Australia?

    Over the past 12 months, round-trip fares from Portland to Australia have ranged from $1,073 to $1,558.

  • What are the main airports serving Australia?

    Australia has 145 airports. The three busiest are Sydney Kingsford Smith (SYD) (54% of arrivals), Brisbane (BNE) (26%) and Melbourne (MEL) (14%).

  • What airlines fly nonstop from Portland to Australia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Portland to Australia. One-stop options include Delta and United Airlines.

  • Which cabin classes are available on flights from Portland to Australia?

    On flights from Portland to Australia you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Australia?

    KAYAK travelers' favorite landmarks in Australia include:

    • Sydney Opera House
    • Marvel Stadium
    • Melbourne Cricket Ground
    • Crown Casino

  • What are some of the transportation choices to get from the Sydney International Airport to the downtown Sydney area?

    One of the most convenient and cost-effective choices for making this trip is to travel on the Line T8 train offered by Sydney Trains that makes the trip from the airport in about 11 minutes. Taxis that make the trip from the airport can do so in about 15 minutes.

  • What are some transportation options to get from the Perth International Airport to downtown Perth?

    There is a light rail service offered by Transperth and their Airport Line that makes the trip from the airport in about 19 minutes. This company also offers their Line 380 bus that makes the trip in about 32 minutes. Traveling in a taxi from the airport to the downtown area should take about 17 minutes.

  • What are the visa and passport requirements when flying from Portland to Australia?

    There is a requirement to obtain a visa or an electronic travel authority before you fly to Australia. If you are traveling to Australia as a tourist and you do not plan on staying for more than 90 days, it is quite easy to obtain an electronic travel authority through the ETA website before your trip. Travelers also need to have a valid passport upon their entry into Australia.

  • Does the Sydney International Airport offer services or amenities to help me get freshened up after a long flight from Portland?

    Travelers will find that this airport offers free showers in Terminal One near Gates 31, 51, and 24. You can also find showers in the check-in area near Counters A and K on the departures level.

Your guide to booking Portland to Australia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 26 weeks before your trip. KAYAK data shows fares in this window are around 33% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for June when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Thursday cost about 19% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Brisbane (BNE) is the cheapest airport to fly into from Portland. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Sydney, which is the most popular destination in Australia. From there, it's easy to continue on to other popular destinations such as Melbourne, Brisbane and Perth.
  • Travelers who plan on making a trip from the Portland International Airport (PDX) to Australia often make the choice to fly to the Sydney International Airport (SYD). When looking for flights on this route, some of the best options include one-stop flights aboard Air Canada, United Airlines, Delta Airlines, and Qantas Airways.
  • A popular destinations on the west coast of Australia is the city of Perth and the Perth International Airport (PER). Popular flight choices to this airport from Portland International Airport include two-stop flights offered by Air Canada.
  • Travelers that want to find a way to get to the Portland International Airport without having to take their own car should select the Central Oregon Breeze bus that makes the trip from Union Station in downtown Portland to the airport in about 30 minutes.
  • When moms who are nursing are planning a trip through the Portland International Airport, they are happy to find that this airport offers a nursing room that sits on the Concourse Level adjacent to Gates 5 and 6. This nursing room offers adjustable lighting, a chair, a very deep sink, as well as electrical outlets and a locking door.
  • If you are driving your own car to the Portland International Airport, one of the most convenient options for parking is their Valet Parking that lets you drop your car off adjacent to the ticket counter and then your car will be waiting for you at the curb upon your arrival back in Portland. For longer trips such as those to Australia, a more economical option is to choose the Economy Lot which offers the lowest daily parking rate, has free shuttle service to the terminal building, and also offers free flat tire assistance and jump starts should you need it.

Reviews of the top 5 airlines serving from Portland to Australia

 
Need help choosing which airline to fly with from Portland to Australia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 13159 reviews
7.0Food
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
Airline reviews

The staff was great, plane was nice, no tvs but trip was short so didn’t really matter

10.0 ExcellentOlivia, Nov 2026
Read more Alaska Airlines reviews

The staff was great, plane was nice, no tvs but trip was short so didn’t really matter

No real issues on this flight other than the overhead bins said reserved for premium customers for a large section that was over non-first class seating

The seats are so close to seats in front that you cannot lean forward and reach anything you may have placed or dropped on the floor.

It's no surprise that bigger overhead space would be nice, but they are super convenient and helpful with the baggage claim stuff.

I like the customer service. I was upgraded on flight, so enjoyed the better seat selection

Overall, excellent, including the warmth, friendliness and equanimity of all the employees,

First flight one hour late, return on time. On both flights everybody were just great Seats comfortable. No complaints, just , 2 good flights. Like flying Alaska Airlines.

Plane narrows toward back of flight. Seats small. No snack options. I cookie pack going. 1 pretzel pack on return. No in flight entertainment for long flight.

First time flying on Alaska Airlines. Very good experience. Boarded, landed on time, baggage claim was quick just as they guarantee. When returning home, the nicest person at the check in counter helped with our checked luggage tickets and our wine cases, which were free to check (one per passenger) when you joined their rewards program. Will definitely use this airline again!

We were really impressed with the customer service throughout Alaska Airlines. Every crew member we engaged with were very welcoming and eager to help. I find airline travel to be extremely stressful, but my experience with Alaska Airlines was the complete opposite. We will definitely be booking future flights with Alaska Airlines.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

Despite having numerous passengers held up by American Airlines delays. Qantas (an AA partner) closed boarding with 0 flexibility

Boarding , crew and meals were all amazing. Couldn't wish for a better LOOONG flight from Dallas to Sydney .

Boarding was effortless, the food was outstanding, the seats in Premium Economy were extremely comfortable, and the staff and crew were excellent.

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

I couldn't hear all of the announcements. It was nice when they put them on the screen.

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

One of the best Qantas business flights I've had. Quality product

Loved the staff. The economy seats could have been bigger.

The food was terrible. And the flight attendants were very rude. One flight attendant wouldn’t help a passenger lift their carry-on. Another flight attendant wouldn’t give a man an extra blanket. And they walked by not even looking at the passengers to see if they needed a glass of water.

I was in premium economy. My seat didn’t recline much - it was broken. My phone charger didn’t work.

The food could be much better. Also very unfortunate that most of business class seats were empty but I could not upgrade.

It was serviceable, nothing special but nothing awful on this leg.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

Warning- Air Canada makes it almost impossible to get a refund if a flight is cancelled. My flight was cancelled due to a damaged plane. This airline then rebooked me for a later flight. I went on line and tried to navigate their site to rebook to another within my original itinerary and I had thought I had changed it the first time, but since their site is nothing like our sites here in the states, you had to closely look for the links to complete the process. Then came the other problem. Trying to get a $45 refund on check in baggage, that I had paid for one day in advance. I tried calling the airline's customer service. They stated they are unable to process refunds for this. They then referred me to an on line site. This site required you to answer a multitude of drop down questions that are not applicable to a simple flight cancelation. Then right when I think I am done, it asks for an "incident number". I then eventually fly into Vancouver BC International Airport and speak to 3 Air Canada employees. They then tell me they cannot refund me my check in bagge fee. Once again, they refer me to this ridiculous site . They then give me a code to list and tell me to use the airport code, plus the letters AC followed by the flight # to list as an incident #. I tried this and guess what, it failed. Kayak, if you're listening. Something is very ethically wrong with Air Canada's refund process, especially when one of their planes is damaged and a flight is canceled. I have flown for many years, every week for a long time period with many airlines. Please post this so the public can see this accurate assessment of their airline customer service failure.

Great flight attendants, great luggage tracking, pretty good trans-pacific business class setup, food was modest. Only paid WiFi in business class unless you enter an Air Canada member number at the time of booking (e.g., no Star Alliance member number). Vegetarian food was tasty but had no protein. Overall, a good mainstream North American carrier flight experience. Acceptable if the price is right. Otherwise, I might choose an Asian carrier for elevated experience.

It was pretty straight forward, no glitches or hidden costs

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

PDX staff was great and we arrived on time in YVR.

Horrible I had a health emergency and couldn’t go Air Canada refused to allow me to reschedule

Really poor travel experience. My first flight was cancelled, which cut my international trip short and threw off my schedule. I will not be flying Air Canada again if I can so help it. The crew and in-flight experience was pleasant and enjoyable but the consistent delays and cancellations are not worth it.

Economy middle seat was so narrow that I could not sit back comfortably with passengers on either side of me. Over the 9-hour flight, with my body slightly twisted most of that time, my previously-healthy left knee became very painful, even though I got up to walk multiple times. The knee is still painful 3 weeks later. Otherwise, it was a nice flight, but I was crippled over my entire vacation.

More options for your flight from Portland to Australia

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