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$1,041+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
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 January 7, 2026.

Round-trip from

$1,041
(Korean Air)

Popular in

January

Cheapest in

November

Average price

$1,672
From Portland to Thailand
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 7, 2026.

This Korean Air deal was found by Cheapflights users on 1/6. 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.
Thu 2/266:18 amPWM - BKK
2 stops51h 12mKorean Air
Wed 3/49:30 pmBKK - PWM
2 stops38h 48mKorean Air
Deal found 1/6$1,041
This Korean Air deal was found by Cheapflights users on 1/7. 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.
Thu 10/16:30 amPWM - BKK
2 stops31h 35mKorean Air
Sat 10/1711:30 pmBKK - PWM
2 stops35h 18mKorean Air
Deal found 1/7$1,075
This Korean Air deal was found by Cheapflights users on 1/6. 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.
Sun 3/82:30 pmPWM - BKK
2 stops45h 50mKorean Air
Wed 3/1112:55 amBKK - PWM
2 stops33h 27mKorean Air
Deal found 1/6$1,091
This United Airlines deal was found by Cheapflights users on 1/6. 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 2/265:45 amPWM - BKK
3 stops41h 40mUnited Airlines
Wed 3/44:55 pmBKK - PWM
3 stops58h 19mUnited Airlines
Deal found 1/6$1,116
This United Airlines deal was found by Cheapflights users on 1/6. 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 pmPWM - BKK
2 stops51h 38mUnited Airlines
Thu 3/124:55 pmBKK - PWM
3 stops63h 16mUnited Airlines
Deal found 1/6$1,123
This United Airlines deal was found by Cheapflights users on 1/5. 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 10/16:00 amPWM - BKK
2 stops35h 35mUnited Airlines
Sat 10/173:40 pmBKK - PWM
3 stops60h 32mUnited Airlines
Deal found 1/5$1,136
This United Airlines deal was found by Cheapflights users on 1/6. 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 2/206:00 amPWM - BKK
3 stops41h 25mUnited Airlines
Fri 2/274:55 pmBKK - PWM
3 stops40h 14mUnited Airlines
Deal found 1/6$1,280
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/214:15 pmPWM - BKK
2 stops44h 05mUnited Airlines
Sat 2/284:55 pmBKK - PWM
3 stops33h 28mUnited Airlines
Deal found 1/7$1,291
This Korean Air deal was found by Cheapflights users on 1/6. 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.
Sat 3/216:25 amPWM - HKT
2 stops52h 45mKorean Air
Wed 3/2511:40 pmHKT - PWM
2 stops34h 42mKorean Air
Deal found 1/6$1,375
This Qatar Airways deal was found by Cheapflights users on 1/5. 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.
Fri 2/2012:29 pmPWM - HKT
2 stops42h 26mQatar Airways
Fri 2/2710:30 amHKT - PWM
3 stops43h 49mQatar Airways
Deal found 1/5$1,853
This Expedia deal was found by Cheapflights users on 1/5. 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.
Fri 2/202:35 pmPWM - HKT
2 stops43h 35mMultiple Airlines
Fri 2/278:20 amHKT - PWM
2 stops45h 59mMultiple Airlines
Deal found 1/5$1,907

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 January 7, 2026.
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

Thu 2/26

6:18 am-9:30 pm

2 stops51h 12m

Bangkok Suvarnabhumi

Wed 3/4

9:30 pm-12:18 am

2 stops38h 48m

$1,041

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 3/8

2:30 pm-11:20 pm

2 stops45h 50m

Bangkok Suvarnabhumi

Wed 3/11

12:55 am-11:22 pm

2 stops33h 27m

$1,091

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 2/26

5:45 am-11:25 am

3 stops41h 40m

Bangkok Suvarnabhumi

Wed 3/4

4:55 pm-3:14 pm

3 stops58h 19m

$1,116

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 3/8

2:32 pm-5:10 am

2 stops51h 38m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-9:11 pm

3 stops63h 16m

$1,123

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 2/20

6:00 am-11:25 am

3 stops41h 25m

Bangkok Suvarnabhumi

Fri 2/27

4:55 pm-9:09 pm

3 stops40h 14m

$1,280

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 2/21

5:45 am-11:25 am

3 stops41h 40m

Bangkok Suvarnabhumi

Sat 2/28

4:55 pm-2:23 pm

3 stops33h 28m

$1,280

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Sat 3/21

6:25 am-10:10 pm

2 stops52h 45m

Phuket City

Wed 3/25

11:40 pm-11:22 pm

2 stops34h 42m

$1,375

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 2/20

12:29 pm-6:55 pm

2 stops42h 26m

Phuket City

Fri 2/27

10:30 am-6:19 pm

3 stops43h 49m

$1,853

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 2/20

2:35 pm-10:10 pm

2 stops43h 35m

Phuket City

Fri 2/27

8:20 am-6:19 pm

2 stops45h 59m

$1,907

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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, March is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $524). Flying from Portland, Maine to Thailand in June is currently the most expensive (average of $1,116). 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 January 7, 2026.

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to Thailand at noon. If you’re flexible enough to do this you can expect to save up to 68% on your trip compared to booking a flight in the evening.

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 January 7, 2026.
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
9,138 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 Korean Air, United Airlines, and Qatar Airways fly from Portland, Maine to Thailand in about 41h 40m. The time it takes to get you to your destination can typically vary by up to 9h 32m. 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, March is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $524). Flying from Portland, Maine to Thailand in June is currently the most expensive (average of $1,116). 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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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