$411 Find Cheap Flights from Portland to Southeast Asia

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 Southeast Asia departing on 9/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Southeast Asia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Southeast Asia.
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Flights Deals

Best Southeast Asia Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops$763
Manila
Manila2 stops$811
Ho Chi Minh City
Ho Chi Minh City2 stops$752
Singapore
Singapore1 stop$694
Denpasar
Denpasar2 stops$897
Hanoi
Hanoi2 stops$885
Phuket City
Phuket City2 stops$890
Cebu City
Cebu City2 stops$812
Da Nang
Da Nang2 stops$796
Phnom Penh
Phnom Penh2 stops$947
Chiang Mai
Chiang Mai2 stops$790
Angeles City
Angeles City2 stops$866
Vientiane
Vientiane2 stops$1,341
Ko Samui
Ko Samui3 stops$1,425
Davao City
Davao City2 stops$1,062
Bangkok
Bangkok2 stops$763
Manila
Manila2 stops$811
Ho Chi Minh City
Ho Chi Minh City2 stops$752
Singapore
Singapore1 stop$694
Denpasar
Denpasar2 stops$897
Hanoi
Hanoi2 stops$885
Phuket City
Phuket City2 stops$890
Cebu City
Cebu City2 stops$812
Da Nang
Da Nang2 stops$796
Phnom Penh
Phnom Penh2 stops$947
Chiang Mai
Chiang Mai2 stops$790
Angeles City
Angeles City2 stops$866
Vientiane
Vientiane2 stops$1,341
Ko Samui
Ko Samui3 stops$1,425
Davao City
Davao City2 stops$1,062

Cheap Flights from Portland to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Southeast Asia 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 Southeast Asia

Tue, Sep 16 - Tue, Sep 30
Air Canada Logo
3:25 pm - 7:05 amPDX-SIN
24h 40m1 stop
Air Canada Logo
9:10 am - 6:46 pmSIN-PDX
24h 36m1 stop
$694Air Canada
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Tue, Oct 28 - Tue, Nov 11
Air Canada Logo
3:25 pm - 7:55 amPDX-SIN
25h 30m1 stop
Air Canada Logo
9:00 pm - 9:34 amSIN-PDX
28h 34m2 stops
$696Air Canada
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Sun, Aug 31 - Sat, Sep 13
Korean Air Logo
4:55 pm - 12:35 pmPDX-SGN
29h 40m2 stops
Korean Air Logo
7:35 am - 8:40 pmSGN-PDX
27h 05m2 stops
$759Korean Air
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Mon, Sep 1 - Sat, Sep 13
Korean Air Logo
6:14 am - 11:15 pmPDX-SGN
27h 01m2 stops
Korean Air Logo
7:35 am - 8:40 pmSGN-PDX
27h 05m2 stops
$769Korean Air
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Fri, Aug 22 - Sun, Aug 31
United Airlines Logo
7:35 pm - 9:55 pmPDX-SGN
36h 20m2 stops
United Airlines Logo
7:00 am - 8:37 pmSGN-PDX
27h 37m2 stops
$793United Airlines
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Wed, Nov 26 - Fri, Dec 19
United Airlines Logo
7:38 pm - 10:55 pmPDX-SGN
36h 17m3 stops
United Airlines Logo
11:05 pm - 8:05 pmSGN-PDX
36h 00m2 stops
$794United Airlines
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Wed, Oct 15 - Wed, Oct 29
Singapore Airlines Logo
7:00 am - 7:10 pmPDX-SIN
21h 10m1 stop
Singapore Airlines Logo
9:15 am - 1:23 pmSIN-PDX
19h 08m1 stop
$795Singapore Airlines
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Wed, Oct 29 - Fri, Nov 7
Philippine Airlines Logo
5:30 pm - 4:25 amPDX-MNL
19h 55m1 stop
Philippine Airlines Logo
10:40 pm - 6:17 amMNL-PDX
23h 37m1 stop
$880Philippine Airlines
Find Deal
Tue, Oct 7 - Mon, Nov 3
Singapore Airlines Logo
7:00 am - 10:40 pmPDX-CGK
25h 40m2 stops
Singapore Airlines Logo
5:25 am - 1:23 pmCGK-PDX
22h 58m2 stops
$882Singapore Airlines
Find Deal
Thu, Jul 31 - Mon, Aug 25
Philippine Airlines Logo
5:40 pm - 5:45 amPDX-MNL
21h 05m1 stop
Philippine Airlines Logo
10:45 pm - 9:47 amMNL-PDX
26h 02m1 stop
$903Philippine Airlines
Find Deal
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KAYAK's insights & trends for Portland to Southeast Asia flights

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

Can I save money by flying with a layover from Portland to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $769, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Portland to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Southeast Asia, 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 Southeast Asia is September, when tickets cost $966 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,629 and $1,548 respectively.

What’s the cheapest day of the week to fly from Portland to Southeast Asia?

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

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

How far in advance should I book a flight from Portland to Southeast Asia?

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 Southeast Asia, 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 Southeast Asia, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know

Low seasonMay
High seasonJanuary
Cheapest flight$411
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Bangkok Suvarnabhumi Airport

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Portland to Southeast Asia?

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally at night, when round-trip flights cost $1,137 on average. Morning departures are around 20% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,989.

Top 5 airlines serving from Portland to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Portland to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Southeast Asia? 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.
8.4
Korean AirOverall score based on 1088 reviews
8.2Entertainment
8.7Crew
8.3Comfort
8.5Boarding
8.1Food
Airline reviews

Korean air has a little bit more seating space than Asiana air.

8.0 ExcellentAnonymous, Jun 2025CRK - ICN
Read more Korean Air reviews

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

The usual excellent experience with Singapore Airlines. The airplane was on time and actually early to Haneda Airport. The onboarding experience was pleasant with no delays, perhaps owing to the fact that the flight was not full. Nevertheless, the air crew were their usual outstanding standards in serving the passengers.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

The food options and quality could use some more excitement and variety.

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.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

The checking in agent tried to give me a different seat. She tried to give me an economy seat even though I had already checked in with a seat assigned and paid an extra $300 for those seats. She also separated our seating assignment. Very unprofessional and seriously a bad example for an agent. She was rude when I showed her my receipts and she made us wait more than 15 minutes before we were able to get the right boarding passes and correct seats (seats that we paid for in advance)!!!

Purchased exit row window seat for extra leg room and sleep. Worth the price. Attendants maintained restrooms regularly. No snacks/chips/nuts/cookies beyond what was served with meals.

Terrible check in and food was like from fast food

Manila airport is a dump. Very dirty and not comfortable at all

I thought the meals and meal choices were excellent. The cabin staff was helpful and as is the norm for Pinays, extraordinarily empathetic.

Well it's strange everytime going the flight is late coming back the service is superior

Going to Dumaguette 4 times in a row I was late it's terrible

The staff was wonderful. Really took good care of me. The food was not my favorite.

love the flight but the chairs are not comfortable mostly for smaller people

I can't complain. Flying with Philippines airlines was the best choice. They are the best option in the Philippines.

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.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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