In terms of precipitation, rainfall in Portland, Maine ranges from 73.0 - 115.0 inches per month. November is typically the wettest month, when rainfall can reach 115.0 mm. August is typically the driest time to visit Portland, Maine when rainfall is around 73.0 mm.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from BKK to PWM?

When flying from Bangkok to Portland, Maine, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Located just 4.7 km from the city centre, Portland is the airport most travellers will use when flying to Portland from Bangkok. Booking flights from Bangkok to Portland (PWM) should be relatively easy as there are 0 daily inbound flights from Bangkok from 0 different airlines.

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

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

How can I find direct flights from Bangkok to Portland?

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

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

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

฿21,257+ Cheap Flights from Bangkok to Portland, Maine

Cheap flight deals from Bangkok to Portland

Enter your travel dates to find the best prices.

One-way

One-way flights from Bangkok to Portland
Search for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Tue 6/1021:00 -

2 stops37h 54m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/9฿21,257

Tue 29/921:00 -

2 stops37h 54m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 14/9฿21,890

Sun 4/1003:15 -

2 stops31h 39m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 11/9฿21,923

Sat 26/903:15 -

2 stops31h 39m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 14/9฿22,888

Mon 5/1015:55 -

2 stops42h 59m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 11/9฿22,921

Fri 25/902:35 -

2 stops43h 10m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 14/9฿26,015

Tue 6/1023:30 -

3 stops29h 21m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/9฿27,146

Thu 19/1112:40 -

3 stops56h 28m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 11/9฿27,312

Sat 26/917:15 -

3 stops52h 40m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 14/9฿27,911

Wed 18/1103:00 -

2 stops31h 56m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 11/9฿28,643

Tue 29/915:00 -

3 stops41h 19m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 14/9฿29,042

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Sun 4/10

03:15-23:54

2 stops31h 39m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,923

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Sat 26/9

03:15-23:54

2 stops31h 39m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,888

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Mon 5/10

15:55-23:54

2 stops42h 59m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,921

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Fri 25/9

02:35-10:45

2 stops43h 10m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿26,015

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Wed 18/11

03:00-22:56

2 stops31h 56m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿28,643

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Mon 5/10

23:40-18:12

2 stops29h 32m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿75,016

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Sat 3/10

23:40-18:12

2 stops29h 32m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿75,016

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Thu 8/10

23:40-18:12

2 stops29h 32m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿75,016

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Sun 4/10

23:40-18:12

2 stops29h 32m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿75,016

Fastest return journey

BangkokPortland

BKK Bangkok Suvarnabhumi - PWM Portland

BKKPWM

Bangkok Suvarnabhumi

Thu 19/11

16:55-09:00

3 stops28h 05m

Portland

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿114,038

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Sorted by cheapest first

Best time to book a flight from Bangkok to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Bangkok with our price prediction graph.

TH1-PWM

BKK-PWM

Estimated return 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 Bangkok to Portland

TH1-PWM

BKK-PWM

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Portland from Bangkok?
Located just 4.7 km from the city centre, Portland is the airport most travellers will use when flying to Portland from Bangkok. Booking flights from Bangkok to Portland (PWM) should be relatively easy as there are 0 daily inbound flights from Bangkok from 0 different airlines.
Can I find deals for flights from Bangkok to Portland that include hotel bookings?
Yes. In addition to deals on Bangkok to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Bangkok to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Portland.
Can I find deals for business class flights from Bangkok to Portland?
Yes. Cheapflights offers flight deals from Bangkok to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

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Alternative routes for Bangkok to Portland

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How does Cheapflights help users find flights from Bangkok to Portland?

Cheapflights makes it easy to find Bangkok to Portland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Bangkok to Portland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portland from Bangkok.

Can Cheapflights find flights from Bangkok to Portland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Bangkok to Portland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Bangkok to Portland become cheaper?

Not ready to book yet? You can track prices for flights from Bangkok to Portland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Bangkok to Portland

One-way flights from Bangkok to Portland
Search for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Search for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bangkok to Portland that are best for you.

Best time to book a flight from Bangkok to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Bangkok with our price prediction graph.

Cheapflights Insights

Related info for your journey

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

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

How can I find direct flights from Bangkok to Portland?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Bangkok to Portland by cabin class

Find flights from Bangkok to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Bangkok and Portland flights

Browse other Bangkok and Portland flight options. Last updated on 16 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Bangkok to Portland?

Why should you use Cheapflights to find cheap flight tickets from Bangkok to Portland?

Can Cheapflights find flights from Bangkok to Portland with no change fees?

Can Cheapflights notify me if prices for flights from Bangkok to Portland become cheaper?

100% Free

Book With Flexibility

Travel Smart

Cheap flights from Bangkok to Portland, Maine from ฿21,257

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Bangkok to Portland

One-way flights from Bangkok to PortlandSearch for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Search for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bangkok to Portland that are best for you.

Best time to book a flight from Bangkok to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Bangkok with our price prediction graph.

Cheapflights Insights

Related info for your journey

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

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

How can I find direct flights from Bangkok to Portland?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Bangkok to Portland by cabin class

Find flights from Bangkok to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Bangkok and Portland flights

Browse other Bangkok and Portland flight options. Last updated on 16 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Bangkok to Portland?

Why should you use Cheapflights to find cheap flight tickets from Bangkok to Portland?

Can Cheapflights find flights from Bangkok to Portland with no change fees?

Can Cheapflights notify me if prices for flights from Bangkok to Portland become cheaper?

100% Free

Book With Flexibility

Travel Smart

One-way flights from Bangkok to Portland
Search for one-way flight options from Bangkok to Portland. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.