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Suvarnabhumi

$640+ Cheap flights from Portland, ME (PWM) to Suvarnabhumi (BKK)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Portland to Suvarnabhumi

Cheapest flights from Portland to Suvarnabhumi
Explore the most affordable flight options available from Portland to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/223:12 pm
PWM
-
BKK
3 stops32h 13m
United Airlines
Mon 1/267:10 am
BKK
-
PWM
2 stops43h 29m
United Airlines
Deal found 1/19$1,099
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/82:32 pm
PWM
-
BKK
2 stops51h 38m
United Airlines
Sun 3/154:55 pm
BKK
-
PWM
3 stops39h 16m
United Airlines
Deal found 1/21$1,147
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:45 am
PWM
-
BKK
3 stops41h 40m
United Airlines
Fri 3/134:55 pm
BKK
-
PWM
3 stops39h 16m
United Airlines
Deal found 1/20$1,180
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:35 pm
PWM
-
BKK
3 stops55h 10m
United Airlines
Sat 11/73:40 pm
BKK
-
PWM
3 stops31h 04m
United Airlines
Deal found 1/19$1,197
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am
PWM
-
BKK
2 stops44h 25m
Delta
Sat 11/711:15 pm
BKK
-
PWM
2 stops30h 41m
Delta
Deal found 1/19$1,260

Find flight deals from Portland to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,095
(United Airlines)

One-way from

$640
(Trip.com)

Popular in

January

Cheapest in

November

Average price

$1,672
Provider with most accurate pricing for Portland-Bangkok Suvarnabhumi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Bangkok Suvarnabhumi flights.
Search Deals
From Portland to Bangkok Suvarnabhumi
Search Deals
One-way flight from Portland to Bangkok Suvarnabhumi
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Suvarnabhumi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Portland to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Portland

Fly to

Suvarnabhumi

Route

Depart

Return

Price

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 3/8

2:32 pm-5:10 am

2 stops51h 38m

Bangkok Suvarnabhumi

Sun 3/15

4:55 pm-9:11 pm

3 stops39h 16m

$1,147

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 3/6

5:45 am-11:25 am

3 stops41h 40m

Bangkok Suvarnabhumi

Fri 3/13

4:55 pm-9:11 pm

3 stops39h 16m

$1,180

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 5/21

6:00 am-11:10 pm

2 stops30h 10m

$640

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 5/21

6:00 am-9:35 am

3 stops40h 35m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Portland to Suvarnabhumi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Suvarnabhumi in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Bangkok Suvarnabhumi Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Bangkok Suvarnabhumi Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Bangkok Suvarnabhumi Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Bangkok Suvarnabhumi Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Bangkok Suvarnabhumi Airport

What is the cheapest month to book a flight from Portland, Maine to Bangkok Suvarnabhumi Airport?

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Bangkok Suvarnabhumi Airport (average of $734). Flying from Portland, Maine to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,110). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Portland, Maine to Bangkok Suvarnabhumi Airport?

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Suvarnabhumi. Reviews last updated January 21, 2026.
Read reviews from past customers who have flown United Airlines from Portland to Bangkok Suvarnabhumi Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,191 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Portland to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Bangkok Suvarnabhumi?

    For a flight from Portland to Bangkok Suvarnabhumi, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Bangkok Suvarnabhumi per day. 1 airline has flights to Bangkok Suvarnabhumi from Portland on a regular basis.

  • How long is the flight from Portland, Maine to Bangkok Suvarnabhumi Airport?

    Airlines like United Airlines fly from Portland, Maine to Bangkok Suvarnabhumi Airport in about 51h 38m. The time it takes to get you to your destination can typically vary by up to . Portland, Maine and Bangkok Suvarnabhumi Airport are separated by a distance of 8429 mi.

  • What is the cheapest airline to fly from Portland, Maine to Bangkok Suvarnabhumi Airport round-trip?

    According to our current data, United Airlines ($1,047), offers the cheapest pricing from Portland, Maine to Bangkok Suvarnabhumi Airport. You may be able to fly from Portland, Maine to Bangkok Suvarnabhumi Airport for 16% less than the average price by searching for this airline.

  • Can I find deals for flights from Portland to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Portland to Suvarnabhumi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Suvarnabhumi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Suvarnabhumi.

  • Can I find deals for business class flights from Portland to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Portland to Suvarnabhumi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Bangkok Suvarnabhumi Airport?

    Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Bangkok Suvarnabhumi Airport (average of $734). Flying from Portland, Maine to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,110). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Sattahip
Chonburi
Kanchanaburi
Cha-am
Ko Samet
Pak Chong
Ko Lan

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Alternative routes for Portland to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Suvarnabhumi flights
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Top airline flying from Portland to Suvarnabhumi

Discover the top airline that operate flights from Portland to Suvarnabhumi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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