$401 Find Cheap Flights from Portland to South Pacific

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to South Pacific departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Best South Pacific Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$777
Auckland
Auckland1 stop$789
Melbourne
Melbourne2 stops$961
Brisbane
Brisbane1 stop$961
Papeete
Papeete1 stop$903
Nadi
Nadi1 stop$933
Perth
Perth2 stops$1,276
Christchurch
Christchurch2 stops$1,212
Queenstown
Queenstown2 stops$1,253
Adelaide
Adelaide2 stops$1,165
Tamuning
Tamuning2 stops$1,917
Wellington
Wellington2 stops$1,488
Vaitape
Vaitape2 stops$1,728
Coolangatta
Coolangatta2 stops$1,405
Apia
Apia2 stops$1,745
Canberra
Canberra2 stops$1,065
Rarotonga
Rarotonga1 stop$1,214
Sydney
Sydney1 stop$777
Auckland
Auckland1 stop$789
Melbourne
Melbourne2 stops$961
Brisbane
Brisbane1 stop$961
Papeete
Papeete1 stop$903
Nadi
Nadi1 stop$933
Perth
Perth2 stops$1,276
Christchurch
Christchurch2 stops$1,212
Queenstown
Queenstown2 stops$1,253
Adelaide
Adelaide2 stops$1,165
Tamuning
Tamuning2 stops$1,917
Wellington
Wellington2 stops$1,488
Vaitape
Vaitape2 stops$1,728
Coolangatta
Coolangatta2 stops$1,405
Apia
Apia2 stops$1,745
Canberra
Canberra2 stops$1,065
Rarotonga
Rarotonga1 stop$1,214

Cheap Flights from Portland to South Pacific

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to South Pacific that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to South Pacific

Sun, Sep 21 - Sat, Oct 4
Air Canada Logo
7:40 pm - 7:20 amPDX-SYD
18h 40m1 stop
Air Canada Logo
9:20 am - 9:21 amSYD-PDX
17h 01m1 stop
$777Air Canada
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Wed, Oct 29 - Wed, Nov 19
Delta Logo
5:10 pm - 7:55 amPDX-AKL
18h 45m1 stop
Delta Logo
2:50 pm - 11:54 amAKL-PDX
18h 04m1 stop
$789Delta
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Sat, Aug 9 - Sat, Aug 23
Qantas Airways Logo
2:56 pm - 7:05 amPDX-SYD
23h 09m1 stop
Qantas Airways Logo
5:45 pm - 9:15 pmSYD-PDX
20h 30m1 stop
$793Qantas Airways
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Sun, Sep 21 - Fri, Oct 24
Qantas Airways Logo
2:56 pm - 7:05 amPDX-SYD
23h 09m1 stop
Qantas Airways Logo
6:45 pm - 11:22 pmSYD-PDX
22h 37m1 stop
$795Qantas Airways
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Mon, Aug 4 - Sat, Aug 16
United Airlines Logo
7:35 pm - 6:55 amPDX-SYD
18h 20m1 stop
United Airlines Logo
9:30 am - 5:31 pmSYD-PDX
25h 01m2 stops
$839United Airlines
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Thu, Aug 7 - Fri, Aug 22
United Airlines Logo
10:55 am - 7:00 amPDX-SYD
27h 05m2 stops
United Airlines Logo
9:30 am - 5:21 pmSYD-PDX
24h 51m2 stops
$842United Airlines
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Sat, Sep 13 - Sat, Sep 20
Alaska Airlines Logo
10:40 am - 9:30 pmPDX-PPT
13h 50m1 stop
Alaska Airlines Logo
11:30 pm - 8:50 pmPPT-PDX
18h 20m2 stops
$967Alaska Airlines
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Mon, Aug 4 - Fri, Aug 22
Alaska Airlines Logo
5:30 pm - 7:05 amPDX-SYD
20h 35m2 stops
Alaska Airlines Logo
9:10 am - 1:42 pmSYD-PDX
21h 32m2 stops
$1,039Alaska Airlines
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Fri, Oct 31 - Tue, Nov 18
Air New Zealand Logo
1:00 pm - 9:10 amPDX-AKL
24h 10m1 stop
Air New Zealand Logo
8:30 pm - 6:24 pmAKL-PDX
18h 54m1 stop
$1,144Air New Zealand
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Thu, Oct 30 - Tue, Nov 18
Air New Zealand Logo
7:38 pm - 5:45 amPDX-AKL
38h 07m1 stop
Air New Zealand Logo
8:30 pm - 6:24 pmAKL-PDX
18h 54m1 stop
$1,158Air New Zealand
Find Deal
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KAYAK's insights & trends for Portland to South Pacific flights

Get data-powered insights and trends into flights from Portland to South Pacific to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to South Pacific?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to South Pacific, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to South Pacific is May, when tickets cost $1,039 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $1,507 and $1,391 respectively.

What’s the cheapest day of the week to fly from Portland to South Pacific?

The average price of all round-trip flights from Portland to South Pacific clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Portland to South Pacific, look for departures on Saturdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from South Pacific, Thursday is the cheapest day to fly and Tuesday is the most expensive.

How far in advance should I book a flight from Portland to South Pacific?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to South Pacific, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to South Pacific, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonMay
High seasonDecember
Cheapest flight$401
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Portland to Sydney

FAQs - booking South Pacific flights

  • How does KAYAK find such low prices on flights from Portland to South Pacific?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to South Pacific.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to South Pacific?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to South Pacific is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to South Pacific?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to South Pacific with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to South Pacific?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to South Pacific up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Pacific?

    The cheapest time of day to fly to South Pacific is generally in the morning, when round-trip flights cost $1,060 on average. Morning departures are around 5% cheaper than evening flights, on average. The most expensive time of day to fly to South Pacific is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,135.

Top 5 airlines serving from Portland to South Pacific

 
Need help choosing which airline to fly with from Portland to South Pacific? 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.5Crew
7.1Entertainment
8.1Boarding
7.1Food
7.8Comfort
Airline reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

10.0 Excellentmarlene, Jun 2025PDX - SMF
Read more Alaska Airlines reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Check in, they should have told me that upon arrival i needed to exit the secure area and re-check in with Eva Air. I wasn't sure what to do upon arrival at S.F.

The direct service from Logan to PDX made travel so easy, I really appreciate this route. Pilots were very communicative with passengers about conditions and expectations. Everyone on staff was pleasant and helpful. Boarding was easy and efficient.

Flight last minute delayed 2 hours for crew calling out sick

Husband was new to the wheelchair accommodations this trip. What a blessing that was. All employees were helpful and customer service was excellent

Seats are still too crowded and uncomfortable on long flights like this cross country one.

Laney was very helpful. I am computer illiterate. She helped me obtain a boarding pass and preferred seat. She was warm, friendly, helpful, and smiled. I was impressed.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

OUr pilot was very good and also a good landing in a very gusting Phoenix. Most important.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The 10hr flight was a comfortable as it could be in row 57. The food was just very bad….bland and soggy!

The business class upgrade meant a good sleep on the way home after a long week away. Excellent service, great food, and comfortable seat/bed for the journey.

Again, Air New Zealand was great. They kept bathrooms clean, food was actually very good, New Zealand wines a big hit

The issue was with getting our boarding pases. There were issues with our arrangements that were made through Kayak. I am sorry to say that we will not use you again because of this. The flight itself was good and the flight attendants excellent.

Arriving at Coolangatta, rows 20 forward, took the airbridge across to the terminal. It was suggested to those from rows 21 back, that we take the rear stairs and to be careful crossing the tarmac. That was all well and good. However, when we got across to the terminal we then had to climb three large flights of stairs to meet up with those coming across the airbridge. No elevator! There were people carrying babies and elderly carrying hand luggage that needed assistance from others.. There was no option to turn back.

It was good for a short domestic flight. As no food ar entertainment provided, there should be a n/a rating available for those.

USB charging ports did not work on any of Air New Zealand flights

Economy was much nicer on the Air New Zealand planes.

At Coolangatta International it is difficult to hear voice boarding announcements when away from screen announcements.

Flew premium economy, well worth the extra. Much better seat size & space. Meals & snacks were lovely. Crew really pleasant. Internet is not great, not really useful for anything. Couldn't even send messages.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

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