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$588+ Cheap flights from Portland, ME (PWM) to Bangkok

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Portland to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Bangkok (TH1). 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 April 30, 2025.

Round-trip from

$1,127
(oojo)

One-way from

$588
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,122
From Portland to Bangkok
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One-way flight from Portland to Bangkok
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Highest demand for flights based on searches. 16% potential increase in price ($303 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($148 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Portland to Bangkok

Cheapest flights from Portland to Bangkok
Explore the most affordable flight options available from Portland to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:30 amPWM - BKK
2 stops24h 50mQatar Airways
Mon 9/292:30 amBKK - PWM
2 stops30h 29mQatar Airways
Deal found 4/28$1,127
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/122:19 pmPWM - BKK
2 stops27h 56mTurkish Airlines
Thu 6/196:45 amBKK - PWM
2 stops52h 07mTurkish Airlines
Deal found 4/28$1,442
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/156:10 amPWM - BKK
2 stops36h 05mMultiple Airlines
Sat 6/282:30 amBKK - PWM
2 stops47h 48mMultiple Airlines
Deal found 4/28$1,515
This Gurufare deal was found by Cheapflights users on 4/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/93:35 pmPWM - BKK
3 stops38h 50mSingapore Airlines
Sun 6/1512:15 pmBKK - PWM
3 stops46h 37mSingapore Airlines
Deal found 4/27$1,653
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:10 amPWM - BKK
2 stops38h 00mEtihad Airways
Wed 6/182:55 amBKK - PWM
2 stops31h 57mEtihad Airways
Deal found 4/28$1,732
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/126:00 amPWM - BKK
2 stops30h 55mUnited Airlines
Thu 6/197:00 amBKK - PWM
3 stops27h 57mUnited Airlines
Deal found 4/28$2,703

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Bangkok 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 April 30, 2025.
Use the filters below to find and compare flights from Portland to Bangkok that are best for you.

Fly from

Portland

Fly to

Bangkok

Route

Depart

Return

Price

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 9/7

7:30 am-7:20 pm

2 stops24h 50m

Bangkok Suvarnabhumi

Mon 9/29

2:30 am-9:59 pm

2 stops30h 29m

$1,127

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 6/12

2:19 pm-5:15 am

2 stops27h 56m

Bangkok Suvarnabhumi

Thu 6/19

6:45 am-11:52 pm

2 stops52h 07m

$1,442

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 6/15

6:10 am-5:15 am

2 stops36h 05m

Bangkok Suvarnabhumi

Sat 6/28

2:30 am-3:18 pm

2 stops47h 48m

$1,515

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 6/9

3:35 pm-5:25 pm

3 stops38h 50m

Bangkok Suvarnabhumi

Sun 6/15

12:15 pm-11:52 pm

3 stops46h 37m

$1,653

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 6/12

6:10 am-7:10 am

2 stops38h 00m

Bangkok Suvarnabhumi

Wed 6/18

2:55 am-11:52 pm

2 stops31h 57m

$1,732

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 6/12

6:00 am-11:55 pm

2 stops30h 55m

Bangkok Suvarnabhumi

Thu 6/19

7:00 am-11:57 pm

3 stops27h 57m

$2,703

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 7/8

6:10 am-5:15 am

2 stops36h 05m

$588

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 8/15

6:00 am-9:45 pm

2 stops28h 45m

$594

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 7/6

12:03 pm-3:10 pm

2 stops40h 07m

$612

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 7/9

6:53 pm-9:45 pm

2 stops39h 52m

$685

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 13 results
1
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Best time to book a flight from Portland to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok 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

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

Currently, March is the cheapest month in which you can book a flight from Portland, Maine to Bangkok (average of $958). Flying from Portland, Maine to Bangkok in December is currently the most expensive (average of $1,574). 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.

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

Find hourly flight availability from Portland to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to Bangkok in the morning. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the evening.

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok when rainfall is around 0.4 in.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated April 30, 2025.
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,292 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,929 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qatar Airways
7.4
Good
3,563 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Etihad Airways
7.4
Good
1,203 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Portland to Bangkok. 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?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly out of when you book flights from Portland to Bangkok. 2 airlines have flights from Portland to Bangkok on a regular basis. Booking flights from Portland to Bangkok should not be difficult; the airport handles an average of 0 outbound flights to Bangkok per day.

  • What are the cheapest airlines flying from Portland, Maine to Bangkok round-trip?

    According to our current data, Qatar Airways ($1,127), Turkish Airlines ($1,442), and Singapore Airlines ($1,653) offers the cheapest pricing from Portland, Maine to Bangkok. Qatar Airways is currently priced 27% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland, Maine to Bangkok one-way?

    $588 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Korean Air and American Airlines, with prices starting from $594 and $612, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Bangkok 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?

    Currently, March is the cheapest month in which you can book a flight from Portland, Maine to Bangkok (average of $958). Flying from Portland, Maine to Bangkok in December is currently the most expensive (average of $1,574). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Portland to Bangkok

Discover the top 2 airlines that operate flights from Portland to Bangkok. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,197Average$1,345FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,254Average$1,682FlexibilityNo cancel feeOn-timeN/A

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