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$607+ Cheap flights from Portland, ME (PWM) to Thailand

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
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 agosto 20, 2025.

Round-trip from

$1,084
(United Airlines)

One-way from

$607
(oojo)

Popular in

November

Cheapest in

April

Average price

$1,239
From Portland to Thailand
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One-way flight from Portland to Thailand
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Highest demand for flights based on searches. 5% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 agosto 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 9/247:30 amPWM - BKK
2 stops34h 05mUnited Airlines
dom. 9/289:35 amBKK - PWM
2 stops45h 06mUnited Airlines
Deal found 8/17$1,084
This United Airlines deal was found by Cheapflights users on 8/19. 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.
vie. 10/242:34 pmPWM - BKK
3 stops57h 51mUnited Airlines
lun. 11/174:55 pmBKK - PWM
3 stops34h 53mUnited Airlines
Deal found 8/19$1,104
This Delta deal was found by Cheapflights users on 8/19. 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.
mié. 9/171:35 pmPWM - HKT
2 stops45h 35mDelta
dom. 9/2111:25 pmHKT - PWM
2 stops35h 46mDelta
Deal found 8/19$1,178
This Delta deal was found by Cheapflights users on 8/17. 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.
mié. 9/246:00 amPWM - BKK
2 stops32h 05mDelta
sáb. 9/272:35 amBKK - PWM
2 stops32h 36mDelta
Deal found 8/17$1,282
This Korean Air deal was found by Cheapflights users on 8/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/171:35 pmPWM - HKT
2 stops45h 35mKorean Air
dom. 9/2111:25 pmHKT - PWM
2 stops35h 46mKorean Air
Deal found 8/17$1,354
This Singapore Airlines deal was found by Cheapflights users on 8/18. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/172:17 pmPWM - HKT
3 stops33h 33mSingapore Airlines
dom. 9/219:55 amHKT - PWM
3 stops47h 12mSingapore Airlines
Deal found 8/18$1,560
This Etihad Airways deal was found by Cheapflights users on 8/17. 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.
mié. 9/172:17 pmPWM - HKT
2 stops46h 18mEtihad Airways
sáb. 9/2012:55 amHKT - PWM
2 stops32h 12mEtihad Airways
Deal found 8/17$3,477

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 agosto 20, 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

mié. 9/24

7:30 am-4:35 am

2 stops34h 05m

Bangkok Suvarnabhumi

dom. 9/28

9:35 am-7:41 pm

2 stops45h 06m

$1,084

PortlandBangkok

PWM - BKK

PWMBKK

Portland

vie. 10/24

2:34 pm-11:25 am

3 stops57h 51m

Bangkok Suvarnabhumi

lun. 11/17

4:55 pm-3:48 pm

3 stops34h 53m

$1,104

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

mié. 9/17

1:35 pm-10:10 pm

2 stops45h 35m

Phuket City

dom. 9/21

11:25 pm-12:11 am

2 stops35h 46m

$1,178

PortlandBangkok

PWM - BKK

PWMBKK

Portland

mié. 9/24

6:00 am-1:05 am

2 stops32h 05m

Bangkok Suvarnabhumi

sáb. 9/27

2:35 am-12:11 am

2 stops32h 36m

$1,282

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

mié. 9/17

1:35 pm-10:10 pm

2 stops45h 35m

Phuket City

dom. 9/21

11:25 pm-12:11 am

2 stops35h 46m

$1,354

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

mié. 9/17

2:17 pm-10:50 am

3 stops33h 33m

Phuket City

dom. 9/21

9:55 am-10:07 pm

3 stops47h 12m

$1,560

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

mié. 9/17

2:17 pm-11:35 pm

2 stops46h 18m

Phuket City

sáb. 9/20

12:55 am-10:07 pm

2 stops32h 12m

$3,477

PortlandBangkok

PWM - BKK

PWMBKK

Portland

jue. 9/18

2:17 pm-3:25 pm

2 stops38h 08m

$607

PortlandBangkok

PWM - BKK

PWMBKK

Portland

jue. 10/2

3:28 pm-3:10 pm

2 stops36h 42m

$609

PortlandBangkok

PWM - BKK

PWMBKK

Portland

jue. 9/18

3:15 pm-10:25 pm

3 stops44h 10m

$803

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

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 $931). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,546). 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 agosto 20, 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 agosto 20, 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
8,928 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

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
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

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, Delta, and Korean Air fly from Portland, Maine to Thailand in about 34h 05m. The time it takes to get you to your destination can typically vary by up to 11h 30m. 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 $931). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,546). 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 agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,274FlexibilityNo cancel feeOn-time69%

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