$419 Find Cheap Flights from Portland to Thailand - Compare and Save

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 8/31. 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.
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Cheap Flights from Portland to Thailand

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Bangkok
Bangkok1 stop$833
Phuket City
Phuket City2 stops$912
Chiang Mai
Chiang Mai2 stops$875
Ko Samui
Ko Samui2 stops$1,281
Krabi
Krabi3 stops$1,121
Bangkok
Bangkok1 stop$833
Phuket City
Phuket City2 stops$912
Chiang Mai
Chiang Mai2 stops$875
Ko Samui
Ko Samui2 stops$1,281
Krabi
Krabi3 stops$1,121
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 April, when tickets cost $914 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,766 and $1,536 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 24 weeks before departure.

Good to know

Low season

April

Cheapest flight

$419
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Portland to Bangkok

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.
8.8
STARLUX AirlinesOverall score based on 371 reviews
8.8Comfort
9.1Crew
8.9Boarding
8.6Food
8.7Entertainment
Airline reviews

Has a major issue with my seat that I paid a premium price for. On the airline website, it showed the seat as the front row. In reality, there was another row in front of me. When I asked the company about it they told me that the front row was reserved for children with bassinets. On both the going and coming back, there were adults in the row in front of me. Coming back, there was a young child in the row to my right with a bassinet who cried constantly, so kept me awake during the long trip back. So I paid for a premium seat that was not premium! Needless to say I will not fly Starlux again.

6.0 GoodThomas, Aug 2026
Read more STARLUX Airlines reviews

Has a major issue with my seat that I paid a premium price for. On the airline website, it showed the seat as the front row. In reality, there was another row in front of me. When I asked the company about it they told me that the front row was reserved for children with bassinets. On both the going and coming back, there were adults in the row in front of me. Coming back, there was a young child in the row to my right with a bassinet who cried constantly, so kept me awake during the long trip back. So I paid for a premium seat that was not premium! Needless to say I will not fly Starlux again.

Counter personnel were friendly and professional. Assured me my bag would reach Bangkok without having to get it and recheck it for my international flight from Seattle. Also printed out all of my boarding passes for my trip.

The seats weren’t comfortable and the foot rest was broken.

I liked the space of the bathroom. The seats were not as comfortable for such an expensive cost the the foot rest was broken. A small child cried for several hours and I thought the FA would have assisted the family to calm the child.

STARLUX Airlines has great staff and crew. Well organized for quick boarding of such a large plane out of Phoenix to Taipei. Interior of the aircraft was that of deluxe aircraft.

Hostesses were very nice I am disappointed that I paid extra 900$for premium economy which wasn't much upgraded from regular economy, I have wasted my money on this trip 😫

amazing and great food. everything was smooth from start to finished

love this boutique luxury airline. crew was nice and attentive. Lounge is too small , i think they should have more area for relaxing and lounging not just to sit and eat .. feels like a cafeteria more than a lounge. overall i enjoy it. food on the plane LAX to Teipei should inprove a bit. no flavor and more drinks pls

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.

Everything was smooth and professional. They could improve the raw vegan meal with fresher offerings, but otherwise they are now my favorite way to fly to Asia.

I put the review all together for the first review

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

Again on this leg the WiFi wouldn't work. The seats were comfortable with adequate cushion and space between seats for my legs. Very nice 3-hour flight.

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

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

Good. Please add a non- applicable category to your questions.

Amazing crew, excellent food, business class seats seem a bit dated but are super comfy even for a very tall person. If continuing onto Taipei, the stopover in Bangkok is a bit annoying (queue at security) though the lounge is decent.

Boarding is fast and easy for economy class, food was ok baggage policies are good

Everything was fantastic! It was a short flight but the crew really went above and beyond to make it a great flight. I felt cared for with EVA.

Delayed due to no fault of flight crew. Efficient and worked well together.

I had selected seats together for my family of three when I first booked my tickets in February. However, I realized only when I checked in at the airport that the seats I had selected were no longer assigned to us and we were completely scattered across three different middle seats instead of being seated together! After requesting the Singapore staff to have us seated together on a full flight, they managed to find something but it was right next to the rest rooms and the whole journey of 15+ hours was really unpleasant. They said that the seat selection isn't locked and the airline can reallocate the seats anytime. No one ever told us this and it was a terribly unpleasant surprise. Will avoid Kayak/underpricer and Singapore in future

The friendliness of the attendants, and the quality of the service.

Flight attendants were awesome! Very helpful and patients. Some food were good but maybe not serving fish that kinda make the whole aircraft smell fishy. The “fried pork” was tasty but too much skin so it doesnt taste that great.

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

No frills airline with minimal leg room and no entertainment

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.

Airport lounge for business class is too crowded and not comfortable. Poor foods and facilities. Boarding was delayed. A lot of coughing people in the flight even in the business class, which indicated poor screening and health risks.

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.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

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.

The staff were condescending and withheld at times. There were times when they appeared to be more concerned with socializing with each other than appearing professional. I know it must be a hard job, but being chatty and handsy with each other in the public view only to be condescending to customers isn’t a good look.

No entertainment what’s so ever so you may want to prepare yourself. Our flight was delayed.

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

Information on your arrival and departure airports