$344 Find Cheap Flights from Portland to Thailand

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 Thailand departing on 3/5. 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

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Cheap Flights from Portland to Thailand

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok3 stops$877
Phuket City
Phuket City2 stops$847
Chiang Mai
Chiang Mai2 stops$841
Ko Samui
Ko Samui2 stops$1,161
Bangkok
Bangkok3 stops$877
Phuket City
Phuket City2 stops$847
Chiang Mai
Chiang Mai2 stops$841
Ko Samui
Ko Samui2 stops$1,161

Book Cheap Portland to Thailand 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 Thailand 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 Thailand

Thu, Mar 5 - Thu, Mar 12
STARLUX Airlines Logo
3:52 pm - 3:55 pm
PDX
-
CNX
33h 03m
2 stops
STARLUX Airlines Logo
4:55 pm - 10:41 pm
CNX
-
PDX
43h 46m
2 stops
$841STARLUX Airlines
Mon, May 4 - Wed, May 20
Singapore Airlines Logo
5:49 pm - 2:10 pm
PDX
-
HKT
30h 21m
2 stops
Singapore Airlines Logo
8:10 pm - 4:50 pm
HKT
-
PDX
34h 40m
2 stops
$847Singapore Airlines
Tue, May 12 - Tue, Jun 9
Multiple Airlines Logo
2:50 pm - 10:20 am
PDX
-
CNX
29h 30m
2 stops
Multiple Airlines Logo
11:20 am - 9:25 am
CNX
-
PDX
36h 05m
2 stops
$850Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
1:52 pm - 10:20 am
PDX
-
CNX
30h 28m
2 stops
Multiple Airlines Logo
11:20 am - 12:52 pm
CNX
-
PDX
39h 32m
2 stops
$856Multiple Airlines
Mon, Apr 27 - Wed, May 13
Cathay Pacific Logo
10:51 am - 10:50 am
PDX
-
HKT
33h 59m
2 stops
Cathay Pacific Logo
6:20 pm - 9:29 am
HKT
-
PDX
29h 09m
2 stops
$867Cathay Pacific
Wed, May 6 - Tue, May 19
United Airlines Logo
7:15 am - 9:35 am
PDX
-
BKK
36h 20m
3 stops
United Airlines Logo
3:45 pm - 6:46 pm
BKK
-
PDX
41h 01m
3 stops
$877United Airlines
Wed, May 13 - Sun, Jun 7
Multiple Airlines Logo
5:50 pm - 9:45 am
PDX
-
BKK
25h 55m
2 stops
Multiple Airlines Logo
10:50 am - 11:03 pm
BKK
-
PDX
26h 13m
2 stops
$880Multiple Airlines
Mon, Mar 9 - Thu, Mar 12
United Airlines Logo
7:30 am - 11:25 am
PDX
-
BKK
37h 55m
3 stops
United Airlines Logo
4:55 pm - 12:35 am
BKK
-
PDX
21h 40m
2 stops
$885United Airlines
Mon, May 18 - Tue, Jun 9
Multiple Airlines Logo
5:40 pm - 10:20 am
PDX
-
CNX
26h 40m
2 stops
Multiple Airlines Logo
11:20 am - 11:03 pm
CNX
-
PDX
25h 43m
2 stops
$885Multiple Airlines
Sun, Mar 1 - Mon, Mar 9
Cathay Pacific Logo
6:25 am - 11:20 am
PDX
-
HKT
37h 55m
2 stops
Cathay Pacific Logo
6:35 pm - 5:08 pm
HKT
-
PDX
36h 33m
2 stops
$891Cathay Pacific
Booking Insights

KAYAK's insights & trends for Portland to Thailand flights

Get data-powered insights and trends into flights from Portland to Thailand 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 Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Thailand, 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 Thailand is August, when tickets cost $945 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,666 and $1,404 respectively.

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

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 Thailand, 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 Thailand, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$344
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Portland to Bangkok Suvarnabhumi Airport

FAQs - booking Thailand flights

  • What is the most efficient means of transport to the city center from Suvarnabhumi Airport?

    The Airport Rail Link is the most convenient and economical method to go from the airport to the central business district. When you get there, follow the signs that are pointing toward the railway station, which is at the basement of the building. In around 30 minutes, the train will arrive at Makkasan Station and transport you there immediately.

  • Are there rental cars near Suvarnabhumi Airport?

    Yes. The rental car companies include Europe car, Sixt and Bizcar. These vehicle rental agencies provide pick-up or shuttle services from Bangkok Suvarnabhumi Airport to off-airport locations where customers may hire automobiles.

  • Are there hotels near Portland International Airport?

    On the premises of Portland International Airport is the Sheraton Portland Airport Hotel. This is the hotel that is located closest to the airport terminal, and it offers a shuttle service to and from the airport that is available around the clock and is free of charge. They provide free Wi-Fi, a pool, room service that is available around the clock, and a fitness facility that is open around the clock.

  • Are there parking lots located at Portland International Airport?

    At Portland International Airport, those who need parking for an extended period of time may choose between the Daily Parking Garage or the Economy Parking Lot. The Daily Parking Garage is located immediately to the east of the Daily Parking Garage, and it is easily accessible on foot from the main terminal building.

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

    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 Thailand.

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

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

    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 Thailand 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 Thailand?

    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 Thailand up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Thailand

  • If you are traveling to Thailand, you can choose to arrive at either Suvarnabhumi Airport (BKK), Chiang Mai International Airport (CNX) or Don Mueang International Airport (DMK). These airports serve both domestic and international flights in Thailand.
  • The Portland International Airport (PDX) in the state of Oregon is home to a number of enticing airport lounges, including four sites of Priority Pass. Its club list includes the Delta Sky Club and the United Club, although entrance to these clubs is only granted to passengers who are qualified for membership.
  • Located on the Concourse Level between Gates 5 and 6 at Portland International Airport is the airport's nursing room. Each lactation room is equipped with a chair, a large sink, power outlets, and lighting that may be adjusted.
  • Pets traveling through Portland International Airport have access to designated areas for bathroom breaks both within and outside the airport. Those traveling with assistance animals may unwind in designated areas after passing through security on either Concourse C, near the Alaska Lounge, or Concourse D, across from Gate D5.
  • Airports in Thailand (BKK, SNX, and DMK), in addition to PDX, provide a comprehensive range of services geared at assisting passengers with disabilities. You will be able to obtain assistance renting a wheelchair and navigating the airport terminal when you arrive at the airport, when you depart from the airport, or even if you have already been at the airport. This assistance may be available to you when you leave the airport, when you arrive at the airport, or even when you have already been at the airport. You should not feel hesitant to make use of this aid anytime you believe that doing so may be to your advantage.

Reviews of the top 5 airlines serving from Portland to Thailand

 
Need help choosing which airline to fly with from Portland to Thailand? 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 274 reviews
8.9Comfort
8.8Entertainment
8.7Food
9.2Crew
8.9Boarding
Airline reviews

Excellent. Airline was very clean, staff was excellent, very professional. Economy seats were still large and comfortable. Meals were included and with good options. We were given a blanket and pillow as well as a comfort kit including an eye mask, ear plugs, and tooth brush. Would highly recommend.

10.0 ExcellentAdam, Feb 2026
SEA - TPE
Read more STARLUX Airlines reviews

Excellent. Airline was very clean, staff was excellent, very professional. Economy seats were still large and comfortable. Meals were included and with good options. We were given a blanket and pillow as well as a comfort kit including an eye mask, ear plugs, and tooth brush. Would highly recommend.

Business Class is exceptional, from the lie flat seats to the wide range of food on board. Can’t wait for our next journey with Starlux!

Th tray was dirty when pulled it out. Still oily and food stains can clearly see last trip cleaner did not clean well. The toilet sink water did not drain quickly enough.

Majority of the movie entertainment loaded in the aircraft were quite old.

Crew is very attentive. Another new airbus 350-900 plane. Very modern.

Passengers were confused and freaking out coz the flight information wasn’t showing on the board that was running with all the departing flights. B9 gate was still showing Cathay Pacific bound for HK 15:50 was on until 22:07. STARLUX staff cameater but didn’t let the passengers go in to pre departure area until 22:45 for the 23:30 boarding time

The aircraft is fairly new. The screen is big and it's great to enjoy movies on a long haul flight. However, the food quality , and drink and snack selections, have room for improvement.

Preboarding food selection is an excellent idea. On the other end I did know the choice. People in my area know the choice. It ends with I got my meal till most of them are half way to finish their meal.

Overall it’s good . However the food quality can be improved .

My luggage was forced open and broke the zipper. I received it in a huge STARLUX plastic bag. Unfortunately, I have a round trip ticket but might be my first and last with this airline

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

Premium Economy seats were more comfortable than other airlines I have recently been on. Great staff. Food was unremarkable.

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

Very nice, I feel I got good value for the price.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

Certain flight crew member were rude and short with me when I asked questions.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

The crew very accommodating and food too is good. Keep up the good work

The crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.

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!

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!

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

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight cancellations, delays, mass confusion and disorganization! That’s Air Canada for you, nothing new. I would have chosen a different airline if it were an option, and Air Canada continues to prove they don’t care about their customers.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Everything you need to know for your flight from Portland to Thailand

Information on your arrival and departure airports