$324 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 2/8. 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, 0 bags

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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Flight Deals

Cheap Flights from Portland to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops$778
Manila
Manila2 stops$856
Ho Chi Minh City
Ho Chi Minh City2 stops$813
Singapore
Singapore1 stop$795
Denpasar
Denpasar2 stops$856
Hanoi
Hanoi2 stops$803
Phuket City
Phuket City2 stops$897
Cebu City
Cebu City2 stops$792
Da Nang
Da Nang2 stops$836
Chiang Mai
Chiang Mai2 stops$854
Angeles City
Angeles City2 stops$827
Ko Samui
Ko Samui3 stops$1,141
Vientiane
Vientiane2 stops$1,331
Davao City
Davao City3 stops$1,086
Krabi
Krabi2 stops$1,398
Bangkok
Bangkok2 stops$778
Manila
Manila2 stops$856
Ho Chi Minh City
Ho Chi Minh City2 stops$813
Singapore
Singapore1 stop$795
Denpasar
Denpasar2 stops$856
Hanoi
Hanoi2 stops$803
Phuket City
Phuket City2 stops$897
Cebu City
Cebu City2 stops$792
Da Nang
Da Nang2 stops$836
Chiang Mai
Chiang Mai2 stops$854
Angeles City
Angeles City2 stops$827
Ko Samui
Ko Samui3 stops$1,141
Vientiane
Vientiane2 stops$1,331
Davao City
Davao City3 stops$1,086
Krabi
Krabi2 stops$1,398

Book Cheap Portland to Southeast Asia Plane Tickets

 
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

Mon, Feb 16 - Mon, Mar 2
STARLUX Airlines Logo
5:30 pm - 12:35 pmPDX-BKK
28h 05m2 stops
STARLUX Airlines Logo
1:45 pm - 5:59 pmBKK-PDX
19h 14m2 stops
$778STARLUX Airlines
Find Deal
Sun, Feb 22 - Mon, Mar 9
China Airlines Logo
9:30 pm - 9:50 amPDX-BKK
45h 20m2 stops
China Airlines Logo
10:55 am - 9:35 amBKK-PDX
36h 40m2 stops
$779China Airlines
Find Deal
Tue, Mar 31 - Thu, Apr 16
Air Canada Logo
7:00 pm - 7:05 amPDX-SIN
21h 05m1 stop
Air Canada Logo
9:10 am - 2:40 pmSIN-PDX
20h 30m1 stop
$795Air Canada
Find Deal
Sun, Apr 26 - Sat, May 9
Air Canada Logo
7:00 pm - 5:00 amPDX-SIN
43h 00m2 stops
Air Canada Logo
9:10 am - 10:56 pmSIN-PDX
28h 46m1 stop
$796Air Canada
Find Deal
Sun, Mar 15 - Wed, Apr 1
United Airlines Logo
7:30 pm - 10:55 pmPDX-SGN
37h 25m2 stops
United Airlines Logo
7:00 am - 8:33 pmSGN-PDX
27h 33m3 stops
$813United Airlines
Find Deal
Wed, Nov 26 - Fri, Dec 19
United Airlines Logo
7:38 pm - 9:50 pmPDX-SGN
35h 12m2 stops
United Airlines Logo
6:00 am - 10:46 pmSGN-PDX
31h 46m2 stops
$815United Airlines
Find Deal
Thu, Jan 15 - Wed, Feb 11
Korean Air Logo
7:10 am - 12:10 amPDX-SIN
25h 00m2 stops
Korean Air Logo
10:30 pm - 12:44 pmSIN-PDX
30h 14m2 stops
$866Korean Air
Find Deal
Wed, Mar 18 - Sun, Apr 5
Korean Air Logo
6:30 am - 11:20 pmPDX-SGN
26h 50m2 stops
Korean Air Logo
1:55 pm - 1:14 pmSGN-PDX
37h 19m2 stops
$889Korean Air
Find Deal
Wed, Feb 11 - Fri, Feb 27
Philippine Airlines Logo
5:35 pm - 4:05 amPDX-MNL
18h 30m1 stop
Philippine Airlines Logo
11:10 pm - 8:38 pmMNL-PDX
37h 28m1 stop
$910Philippine Airlines
Find Deal
Sun, Apr 19 - Sat, Apr 25
Philippine Airlines Logo
1:45 pm - 12:40 amPDX-DPS
43h 55m2 stops
Philippine Airlines Logo
1:30 am - 12:03 amDPS-PDX
37h 33m2 stops
$1,144Philippine Airlines
Find Deal
Booking Insights

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 $370, 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 $949 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,600 and $1,469 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 2 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$324
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Singapore

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.

Reviews of the 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.
8.9
STARLUX AirlinesOverall score based on 220 reviews
8.9Comfort
9.2Crew
8.9Boarding
8.7Food
8.8Entertainment
Airline reviews

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

10.0 ExcellentBrian, Oct 2025SIN - TPE
Read more STARLUX Airlines reviews

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

Flight cancelled due to inclement weather yet rival airline EVA Air with the same route departed 2 hours later and landed safely while our flight was cancelled and rescheduled for 36 hours later.

The staff in air and on land went above and beyond! I would definately recommend and we will fly Starlux again!

I need Starlux to respond to my complaint and issues for my flight.

Someon vomit during boarding. My seat was next to the vomit. I asked crew member to switch seat, but they said it was a full flight. I had my baby with me. My baby got sick after the flight. He was in the hospital for 2 days.

The airplane so clean and they have a nice crew

it they come out with resent movie and good food

The crew could have been kinder and less pushy. The premium economy seats don't have enough cushion. The seats are to hard and the flight became painful and uncomfortable after an hour of flying.

Aircraft is new and toilets are spacious, but toilets are quite filthy. They should clean more often. They have a long list of drink offer but are actually not available during meal. They said they’ll come back with them and you don’t get them until after dinner which means you eat your meals without any drinks if you were to get something that they don’t have on the cart. They are strict about removing headphones during take off and landing which is new to us since the movies did not get turned off. Instead, we we’re forced to watch their commercials during that time. We probably would fly with them again but not with the cost we spent. For the record, I work in tourism and travel a lot for inspections.

Our transit in Taipei was disappointing. The ground crew could not tell us where the lounge was located, so we wasted 15 minutes trying to find it. The airline has a great review, but our experience says otherwise.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

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!

This flight was a superior flight in all regards. Extremely pleasant experience.

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

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Food could of been better. Crew was pretty much average. It was raining a lot on arrival, had to take a bus to immigration building,

Short flight with limited entertainment wasn't that bad. Staff was friendly and plane was clean. Meal was good.

It was great! The flight was on time and had a smoother flight

I was glad that the plane was not totally full.

Everything was very good but seats are small for a big man!

Well, I needed to make a change to my flight and I called the airline and they said yes no problem $700 and we can do that and I agreed to it so they canceled my tickets and went to rebook and came back after being on hold for an hour and a half and said I’m sorry, sir. There was an error. It is $2800 Now and I said never mind. I will just use those flights and she proceeded to tell me that they already canceled them because I said I was interested in doing the change. I told her yes for $700. I was fine with doing a change but not $2800 so give me my tickets back and she proceeded to tell me that she could not do that and I had to pay the $2800 to get my tickets back that I already spent $2800 on. So I had to book tickets on another airline to get home And that cost a lot of money too. I’m a little pissed off at Philippine airline right now because of what they did to me and I’m not sure I ever wanna fly with them again. I’ve flown with them plenty in the past, but this just really put a bad taste in my mouth.. Not to mention on my way there leaving Seattle going to Vancouver. I got to the airport three hours in advance and they had booked me through Alaska Airlines to do that little trip. My connecting flight would leave about six hours after I got to Vancouver BC. I stood in Alaska Airlines lying for a little over two hours and then they proceeded to tell me that they couldn’t check me in because I wasn’t there an hour in advance. I kept telling the lady at the beginning of the line that I was afraid they were not gonna let me in because it was taking so long and she said oh don’t worry about it. You’re fine you’ve got time. Well I ended up spending $600 to get to Canada that night just to make my connecting flight because Alaska air wouldn’t do anything and Filipino Air told me it was Alaska air problem but Alaska air said since you booked through Philippine air, we can’t fix it. I had about 50 minutes to make my flight, but they refused to check me in because I wasn’t there an hour in advance yet. I’ve been standing in their line for about two hours and 15 minutes.

The flight was fantastic and the crew was absolutely excellent, but the entertainment system on the B777 was not working. That's a long time to spend with no electronics. The crew offered I-Pads but I had brought my own. I am only pointing this out because this is the second flight on Philippines Air where the entertainment system was down. FJM

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

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports