$352 Find Cheap Flights from Portland to Bangkok

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 Bangkok departing on 1/19. 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 Bangkok

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Bangkok.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Bangkok.
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Everything you should know

Cheapest round-trip
$781
Overall average: $1,589
China Airlines
Thu 12/4Tue 12/16
PDX - BKK • 2 stops
Cheapest one-way
$392
Typical prices: $519-$560
Multiple Airlines
Mon 1/19
PDX - BKK • 3 stops
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Top airlines
China Airlines
Cheapest • from $781 (round-trip)
STARLUX Airlines
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 6% compared to booking last minute.
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Flight Deals

Cheap Flights from Portland to Bangkok (PDX-BKK)

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

Thu, Dec 4 - Tue, Dec 16
China Airlines Logo
5:41 pm - 9:50 amPDX-BKK
25h 09m2 stops
China Airlines Logo
10:55 am - 9:36 amBKK-PDX
37h 41m2 stops
$781China Airlines
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Thu, Feb 19 - Sat, Mar 7
China Airlines Logo
2:47 pm - 1:05 pmPDX-BKK
31h 18m2 stops
China Airlines Logo
5:50 pm - 8:35 amBKK-PDX
29h 45m2 stops
$789China Airlines
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Sun, Nov 23 - Tue, Dec 23
China Airlines Logo
1:24 pm - 9:50 amPDX-BKK
29h 26m2 stops
China Airlines Logo
5:50 pm - 6:18 amBKK-PDX
27h 28m2 stops
$791China Airlines
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Mon, Nov 24 - Wed, Dec 24
China Airlines Logo
1:24 pm - 9:50 amPDX-BKK
29h 26m2 stops
China Airlines Logo
2:05 pm - 9:38 amBKK-PDX
34h 33m2 stops
$792China Airlines
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Tue, Apr 7 - Mon, Apr 20
China Airlines Logo
2:45 pm - 12:10 pmPDX-BKK
31h 25m2 stops
China Airlines Logo
5:30 pm - 7:54 amBKK-PDX
28h 24m2 stops
$793China Airlines
Find Deal
Mon, Mar 9 - Fri, Mar 13
Singapore Airlines Logo
7:57 pm - 8:00 pmPDX-BKK
34h 03m2 stops
Singapore Airlines Logo
3:50 pm - 9:35 amBKK-PDX
31h 45m2 stops
$796Singapore Airlines
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Tue, Mar 31 - Tue, Apr 14
Singapore Airlines Logo
6:00 am - 8:00 pmPDX-BKK
24h 00m2 stops
Singapore Airlines Logo
6:30 pm - 4:28 pmBKK-PDX
35h 58m2 stops
$799Singapore Airlines
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Tue, Feb 10 - Thu, Feb 26
China Airlines Logo
1:38 pm - 1:05 pmPDX-BKK
32h 27m2 stops
China Airlines Logo
2:05 pm - 11:46 pmBKK-PDX
24h 41m2 stops
$801China Airlines
Find Deal
Wed, Feb 18 - Sun, Mar 1
Singapore Airlines Logo
9:19 pm - 8:00 pmPDX-BKK
31h 41m2 stops
Singapore Airlines Logo
9:10 pm - 4:41 pmBKK-PDX
34h 31m3 stops
$803Singapore Airlines
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Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
9:50 am - 10:05 pmPDX-DMK
21h 15m2 stops
Multiple Airlines Logo
1:45 pm - 9:15 amDMK-PDX
34h 30m3 stops
$1,114Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Portland to Bangkok flights

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

Find cheap flights to Bangkok
Find cheap flights to Bangkok

Planning a trip from Portland to Bangkok? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

When flying from Portland to Bangkok, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Portland to Bangkok?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Bangkok, 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 Bangkok is September, where tickets cost $949 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,589 and $1,494 respectively.

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

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 Bangkok, 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 Bangkok, 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

Cheapest flight$392
Flight from Portland to Bangkok

When to book flights from Portland to Bangkok

Are your dates flexible? Find out the best times to travel from Portland to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Bangkok

  • Can I bring liquids in my carry-on baggage on a United Airlines flight to Bangkok?

    You can bring liquids onboard your United Airlines flight to Bangkok, provided they comply with the Transportation Security Administration (TSA) regulations. All liquids must be in containers of 3.4 ounces (100 ml) or less and should be placed in a clear, resealable plastic bag with a maximum capacity of one quart (one liter).

  • Which airline promotes eco-friendliness for flights from Portland to Bangkok?

    United Airlines stands out for its commitment to environmental sustainability. They have invested in fuel-efficient aircraft, supported sustainable aviation fuel development, and collaborated with Carbon Zero to offer carbon offset credits. Through these initiatives, United Airlines actively reduces its carbon footprint, making it an eco-friendly choice for this route.

  • What are the public transportation options from Bangkok Suvarnabhumi Airport (BKK) to downtown Bangkok?

    BKK is well-connected to downtown Bangkok by various means of public transportation. The Airport Rail Link is a fast and convenient way to reach the city center. The train departs from the basement of the airport and connects to the BTS Skytrain, allowing you to access various parts of the city. Alternatively, taxis and ride-hailing services are readily accessible at the airport, providing a convenient and direct transportation option to your downtown destination.

  • Which airlines have lounges at Portland International Airport?

    PDX is home to lounges operated by Alaska Airlines, Delta Air Lines, and United Airlines. Access to these lounges varies based on membership or ticket class. Alaska Lounge welcomes Alaska Airlines and its partner airline passengers, while Delta Sky Club offers access to Delta Air Lines and SkyTeam members. United Club grants entry to United Airlines and Star Alliance members.

  • What is the cheapest flight from Portland to Bangkok?

    In the last 3 days, the lowest price for a flight from Portland to Bangkok was $352 for a one-way ticket and $781 for a round-trip.

  • Do I need a passport to fly between Portland and Bangkok?

    Yes, you’ll need a passport to travel to Bangkok from Portland.

  • Which airports will I be using when flying from Portland to Bangkok?

    On your way to Bangkok, you’ll fly out from Portland. You’ll be landing in one of Bangkok’s 2 airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl.

  • Which aircraft models fly most regularly from Portland to Bangkok?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Bangkok?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Portland and Bangkok, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Bangkok from Portland?

    Seattle is the most popular layover city among KAYAK users traveling from Portland to Bangkok.

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

    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 Bangkok.

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

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

    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 to Bangkok with an airline and back to Portland with another airline.

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

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

KAYAK’s top tips for finding a cheap flight from Portland to Bangkok

  • When embarking on a one-stop flight from Portland to Bangkok, your layover destination will depend on the airline you choose. If you travel with Delta Air Lines, you'll layover at Seoul (ICN). In contrast, if you journey with United Airlines, your layover will be at Tokyo (NRT).
  • Portland International Airport (PDX) consists of a single terminal building with five concourses: A, B, C, D, and E. The concourse you'll depart from will depend on the airline you choose. For instance, if you opt for Air Canada, your departure will be from Concourse E, while United Airlines departures are typically from Concourse C.
  • If you're driving to PDX and require long-term parking, the airport offers a hassle-free solution. The Economy Parking Lot is an affordable option, providing ample secure parking spaces. The lot is conveniently connected to the terminal complex via a shuttle service, ensuring a convenient transition from your vehicle to the airport.
  • If you're traveling with young children, consider United Airlines for a family-friendly experience. United Airlines provides priority boarding for families with young kids, ensuring a smooth and stress-free embarkation process. Additionally, they boast of an onboard entertainment system, including a diverse selection of kid-friendly content, ensuring an enjoyable journey for your little ones.
  • Suppose you choose to fly with Air Canada. In that case, it's important to familiarize yourself with their carry-on baggage policy. You are allowed to bring one carry-on bag onboard, which should fit in the overhead bin. Ensure it does not exceed the dimensions of 9 x 15.5 x 21.5 inches and weighs no more than 25 lbs. In addition, you may also bring one personal item which should be small enough to fit comfortably under the seat in front of you.

Reviews of the top 5 airlines serving from Portland to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from Portland to Bangkok. 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 Bangkok? 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 227 reviews
9.2Crew
8.8Entertainment
8.9Boarding
8.9Comfort
8.7Food
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!

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.

Flight was good and comfortable, even for long haul economy. No complaints.

Checking in via an alliance partner, even a foreign one should get TSA Precheck printed on your boarding pass. The paper copy issued by ANA didn’t show it. I couldn’t get my digital copy due to some technical issue arising because I checked in with ANA. The kiosks at SFO similarly threw an error. The only way I could have gotten a new copy of my boarding pass was from the UA counter and lines were nearly as long as TSA so I bit the bullet and went through the regular TSA line. If UA wants my business, they need to improve that process.

Suite lounge in Honolulu is very exclusive and boarding from the lounge into the plane is unique. First suites were huge and comfortable. Japanese meal is like a high end omakase meal. All the staff were very kind and provided sophisticated service. Fast Track upon landing was appreciated but not needed this time because immigration was so empty and easy.

I like the service very much. The food just okay but maybe different culture who like, who don't like.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

Flight was on an ANA flight not air Japan. They did most excellent. Again the flight had excellent legroom for someone that is over 6 foot tall and the staff was very very nice. The only issue you may run into is that the person sitting next to you, may not be able to speak the same language as you.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

Luckily I just tried to sleep. But the entertainment system was awkward to operate. I hate all this stuff with apps and adding it to your phone and all. It is a nuisance. I would prefer a good magazine or newspaper in the pocket in front of me or available.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

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

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 from Portland to Bangkok

Information on your arrival and departure airports