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Cheap flight tickets from Portland to Bangkok

Compare Portland to Bangkok flight deals

Find the cheapest month or even day of the year to fly to Bangkok

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Flight deals from Portland Airport to Bangkok

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Bangkok? If you want to travel next month, return fares start from RM3,671. Find the lowest prices on one-way and return tickets right here.
Bangkok.RM3,213 per passenger.Departing Tue, 1 Sep, returning Tue, 29 Sep.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 1 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 29 Sep, arriving in Portland.Price includes taxes and charges.From RM3,213, select.
Bangkok.RM3,246 per passenger.Departing Tue, 1 Sep, returning Tue, 6 Oct.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 1 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 6 Oct, arriving in Portland.Price includes taxes and charges.From RM3,246, select.
Bangkok.RM3,400 per passenger.Departing Sat, 25 Apr, returning Mon, 11 May.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sat, 25 Apr, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Mon, 11 May, arriving in Portland.Price includes taxes and charges.From RM3,400, select.
Bangkok.RM3,404 per passenger.Departing Tue, 20 Oct, returning Tue, 8 Dec.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 20 Oct, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 8 Dec, arriving in Portland.Price includes taxes and charges.From RM3,404, select.
Bangkok.RM3,462 per passenger.Departing Sun, 18 Oct, returning Sat, 24 Oct.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sun, 18 Oct, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sat, 24 Oct, arriving in Portland.Price includes taxes and charges.From RM3,462, select.
Bangkok.RM3,462 per passenger.Departing Thu, 12 Nov, returning Thu, 10 Dec.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Thu, 12 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Thu, 10 Dec, arriving in Portland.Price includes taxes and charges.From RM3,462, select.
Bangkok.RM3,470 per passenger.Departing Sun, 3 May, returning Fri, 8 May.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sun, 3 May, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Fri, 8 May, arriving in Portland.Price includes taxes and charges.From RM3,470, select.
Bangkok.RM3,555 per passenger.Departing Mon, 9 Nov, returning Sun, 22 Nov.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Mon, 9 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 22 Nov, arriving in Portland.Price includes taxes and charges.From RM3,555, select.
Bangkok.RM3,583 per passenger.Departing Tue, 24 Nov, returning Tue, 12 Jan.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 24 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 12 Jan, arriving in Portland.Price includes taxes and charges.From RM3,583, select.
Bangkok.RM3,670 per passenger.Departing Sun, 29 Mar, returning Mon, 20 Apr.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sun, 29 Mar, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Mon, 20 Apr, arriving in Portland.Price includes taxes and charges.From RM3,670, select.
Bangkok.RM3,671 per passenger.Departing Wed, 15 Apr, returning Wed, 22 Apr.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Wed, 15 Apr, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Wed, 22 Apr, arriving in Portland.Price includes taxes and charges.From RM3,671, select.
Bangkok.RM3,673 per passenger.Departing Wed, 4 Mar, returning Wed, 11 Mar.Return flight with Alaska Airlines and EVA Air.Outbound indirect flight with Alaska Airlines, departs from Portland on Wed, 4 Mar, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with EVA Air, departs from Bangkok Suvarnabhumi on Wed, 11 Mar, arriving in Portland.Price includes taxes and charges.From RM3,673, select.
Bangkok.RM3,711 per passenger.Departing Sun, 26 Apr, returning Mon, 22 Jun.Return flight with Frontier Airlines and Philippine Airlines.Outbound indirect flight with Frontier Airlines, departs from Portland on Sun, 26 Apr, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Philippine Airlines, departs from Bangkok Suvarnabhumi on Mon, 22 Jun, arriving in Portland.Price includes taxes and charges.From RM3,711, select.
Bangkok.RM3,774 per passenger.Departing Sat, 29 Aug, returning Fri, 2 Oct.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sat, 29 Aug, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Fri, 2 Oct, arriving in Portland.Price includes taxes and charges.From RM3,774, select.
Bangkok.RM3,811 per passenger.Departing Sun, 29 Mar, returning Fri, 29 May.Return flight with Alaska Airlines and China Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Sun, 29 Mar, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Fri, 29 May, arriving in Portland.Price includes taxes and charges.From RM3,811, select.
Bangkok.RM3,922 per passenger.Departing Tue, 14 Jul, returning Tue, 21 Jul.Return flight with Alaska Airlines and Thai LionAir.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 14 Jul, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Thai LionAir, departs from Don Mueang on Tue, 21 Jul, arriving in Portland.Price includes taxes and charges.From RM3,922, select.

Find the cheapest month to fly from Portland to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Bangkok flights are currently cheapest in September.
Mar
from RM3,673
Apr
from RM3,671
May
from RM3,470
Jun
from RM7,100
Jul
from RM3,922
Aug
from RM3,927
Sep
from RM3,213
Oct
from RM3,462
Nov
from RM3,555
Dec
from RM4,013
Jan
from RM6,185
Feb
Find prices

Alternative Portland to Bangkok routes

Looking for the cheapest, fastest or easiest route from Portland to Bangkok? You could fly into the following airports instead.

Don Mueang

21km from central Bangkok
Closest
from RM4,253
Search flights

Bangkok Suvarnabhumi

29km from central Bangkok
Cheapest
from RM3,213
Search flights

Portland to Bangkok: Flight information

The things to know before you go.
Cheapest flight foundRM3,213
Cheapest month to flySeptember

Finding cheap flights from Portland to Bangkok: Frequently asked questions

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.
The best price we found for a return flight from Portland to Bangkok is RM3,213. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Portland to Bangkok. But we found flights with one or more stops from RM3,213.
As of March 2026, there are no flights flying from Portland to Bangkok.
The cheapest month to fly from Portland to Bangkok is usually September.
If you're flying from Portland Airport, the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 28.5 km away from the centre of Bangkok. We've found flights into this airport from RM3,213.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Bangkok on Tuesday, 1 September 2026.
No airlines currently offer direct flights between Portland Airport and Bangkok. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 30°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.
Currently, Alaska Airlines offers the cheapest flight tickets to Bangkok.

Travelling from Portland International Airport (PDX) to Bangkok: what you need to know

  • Bangkok is 14 hours ahead of Portland, where Portland International Airport is located. Bangkok observes the UTC+7 timezone.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your PDX to Bangkok flight.

  • If you're flying during a bank holiday or another peak period, allow for even more time. A good rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at security and check-in will be longer.

  • We make it simple to book flight tickets from PDX to Bangkok with a stopover. To see all your options, deselect 'Direct flights only.' Next, pick a flight that has a stop long enough to tour your chosen city. Top stopovers include:

    • London Heathrow Airport (LHR)

    • Amsterdam Airport Schiphol (AMS)

    • Vancouver International Airport (YVR)

  • PDX is around 10 kilometres from central Portland. If you're catching a cab, driving or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 45 minutes.

  • Have an early flight from Portland International Airport to Bangkok? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by choosing one of these hotels close to PDX:

  • 83.65% of flights leaving Portland International Airport touch down at their destination on time. Given its dependable on-time performance, disruptions are unlikely when flying out of PDX.

  • You'll find PDX at 7000 NE Airport Way.

How to find the cheapest flights from Portland International Airport (PDX) to Bangkok

  • RM1,512 is the cheapest price we've found for a one-way Portland International Airport to Bangkok flight. A return flight ticket right now is RM3,213. Depending on the availability when you book, these fares may change.

  • Booking in advance is often the key to scoring a cheap flight from PDX to Bangkok. Prices tend to rise as demand increases, so the closer you get to departure, the more you'll likely spend.

  • The 'Whole month' search tool will show you the cheapest tickets from Portland International Airport to Bangkok throughout the month. It's a good way to snap up a bargain if your dates aren't set in stone.

  • You don't need to check in daily to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as there's an even bigger deal on cheap flights from PDX to Bangkok.

  • Tailor your flights with filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Portland International Airport to Bangkok.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

  • Suvarnabhumi Airport (BKK) is around 32 kilometres from the centre of Bangkok. If you're catching a cab or a ride-share, the drive will take roughly 35 minutes.

  • Travelling by public transport will take you around 1 hour 5 minutes.

  • Think about booking a hotel close to BKK if you have a late flight from Portland International Airport to Bangkok. Check in to one of these options and make your first night all about rest:

  • Go where the road takes you with a Suvarnabhumi Airport rental car. Book your wheels from Chic Car Rent, asap car hire or Hertz and discover more of Bangkok and beyond.

  • Reserving your ride from Suvarnabhumi Airport around four weeks before your flight from PDX to Bangkok can help you get the lowest rate.

Don Mueang International Airport (DMK)

  • Don Mueang International Airport (DMK) is roughly 27 kilometres from the centre of Bangkok. Once you've hopped off your flight from Portland International Airport to Bangkok, it'll take you around 30 minutes to get to the heart of the city in a ride-share or cab.

  • If you travel by public transport, the ride to the centre takes 1 hour 5 minutes or so.

  • You'll find some comfortable places to park your luggage (and yourself) near DMK. Kick back and get cosy after your PDX to Bangkok flight at one of these well-located options:

  • Forget about public transport timetables or waiting in a long cab line. Pick up a Don Mueang International Airport rental car and let your trip unfold on your terms. Compare rates and availability from Chic Car Rent, asap car hire and Hertz.

  • Get the lowest price by reserving your ride from DMK three weeks in advance. You'll also have access to a wider range of vehicles.

Best time to go to Bangkok

  • Carefully consider your trip dates before securing your flight from Portland International Airport to Bangkok. The city comes alive during peak season, but rates are usually higher and top attractions can get busy. Visit Bangkok in the off-season if you want a quieter vibe.

  • Lock in a Portland International Airport to Bangkok flight ticket with a departure in April if you're eager to explore the city during its warmest month. You can expect temperatures to range from 26ºC (79ºF) to 37ºC (99ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from PDX to Bangkok in December when temperatures average between 19ºC (66ºF) and 33ºC (91ºF).

More about Bangkok

Explore more of Thailand

  • You've visited Bangkok, now it's time to discover other parts of Thailand. Journey about 467 kilometres north-east to Udon Thani to check off its top attractions. From Nong Prajak Public Park to Krom Luang Prachaksinlapakhom Monument and Chinesisches Tor, there's plenty to keep you busy.

  • If you're ready to explore another major destination in Thailand, head for Nakhon Ratchasima, about 225 kilometres north-east of Bangkok. Art and Culture Centre, Vongchavalitkul University, Wat Pa Salwan (Burapha Chan Chedi) and บ้านสวนเกษตรอินทรีย์ (บ้านสวนในซอย) are highlights.

Plan the rest of your trip from Portland to Bangkok

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.