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$1,074+ Cheap flights from Portland, ME (PWM) to Thailand

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated September 14, 2025.

Round-trip from

$1,074
(United Airlines)

Popular in

November

Cheapest in

April
From Portland to Thailand
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals

Find flight deals from Portland to Thailand

Cheapest flights from Portland to Thailand
Explore the most affordable flight options available from Portland to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 9/246:00 amPWM - BKK
2 stops32h 05mDelta
Sun 9/2811:30 pmBKK - PWM
2 stops35h 41mDelta
Deal found 9/11$1,079
This Etihad Airways deal was found by Cheapflights users on 9/13. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:14 amPWM - BKK
2 stops30h 06mMultiple Airlines
Tue 11/48:55 amBKK - PWM
2 stops44h 10mMultiple Airlines
Deal found 9/13$1,164
This oojo deal was found by Cheapflights users on 9/13. 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.
Tue 10/284:14 pmPWM - BKK
2 stops33h 51mQatar Airways
Mon 11/32:00 amBKK - PWM
2 stops46h 08mQatar Airways
Deal found 9/13$1,391
This Qatar Airways deal was found by Cheapflights users on 9/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:30 pmPWM - BKK
2 stops35h 55mQatar Airways
Sat 9/272:30 amBKK - PWM
2 stops30h 37mQatar Airways
Deal found 9/13$1,433
This Qatar Airways deal was found by Cheapflights users on 9/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:56 pmPWM - HKT
2 stops28h 54mQatar Airways
Mon 9/228:25 pmHKT - PWM
2 stops27h 56mQatar Airways
Deal found 9/11$1,617
This Etihad Airways deal was found by Cheapflights users on 9/12. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:17 pmPWM - HKT
2 stops46h 18mEtihad Airways
Sun 9/2112:55 amHKT - PWM
2 stops47h 26mEtihad Airways
Deal found 9/12$2,992
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 10/282:20 pmPWM - BKK
3 stops34h 05mUnited Airlines
Tue 11/44:55 pmBKK - PWM
3 stops36h 53mUnited Airlines
Deal found 9/13$3,308
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:28 pmPWM - BKK
2 stops26h 37mAmerican Airlines
Tue 11/49:55 amBKK - PWM
3 stops26h 04mAmerican Airlines
Deal found 9/13$4,883

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Thailand 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 September 14, 2025.
Use the filters below to find and compare flights from Portland to Thailand that are best for you.

Fly from

Portland

Fly to

Thailand

Route

Depart

Return

Price

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

6:00 am-5:10 am

2 stops35h 10m

Bangkok Suvarnabhumi

Mon 2/16

4:55 pm-9:14 pm

3 stops40h 19m

$1,074

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 9/24

6:00 am-1:05 am

2 stops32h 05m

Bangkok Suvarnabhumi

Sun 9/28

11:30 pm-12:11 am

2 stops35h 41m

$1,079

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

6:00 am-5:10 am

2 stops35h 10m

Bangkok Suvarnabhumi

Sun 2/15

4:55 pm-9:14 pm

3 stops40h 19m

$1,114

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 12/28

12:19 pm-12:35 pm

3 stops36h 16m

$14,170

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Portland to Thailand

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

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

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $908). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,518). 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 TH?

Find hourly flight availability from Portland to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

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

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated September 14, 2025.
Peruse reviews from past customers who have flown with United Airlines from Portland to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,931 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA

Related info for your journey

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

    Portland (PWM) is the airport you will fly out of if you book a flight from Portland to Thailand. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

  • How long is the flight from Portland, Maine to Thailand?

    Airlines like United Airlines and Delta fly from Portland, Maine to Thailand in about 32h 05m. The time it takes to get you to your destination can typically vary by up to 3h 05m. Portland, Maine and Thailand are separated by a distance of 8429 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Thailand 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 Thailand?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $908). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,518). 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

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Top airline flying from Portland to Thailand

Discover the top airline that operate flights from Portland to Thailand. 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,274FlexibilityNo cancel feeOn-time69%

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