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$1,060+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Portland to Thailand

Best flights from Portland to Thailand
Discover carefully curated flight deals from Portland to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Delta deal was found by Cheapflights users on 12/26. 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.
Mon 2/165:31 amPWM - BKK
2 stops31h 24mDelta
Thu 2/199:40 amBKK - PWM
2 stops25h 26mDelta
Deal found 12/26$1,060
This Korean Air deal was found by Cheapflights users on 12/25. 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 12/25$1,071
This Delta deal was found by Cheapflights users on 12/26. 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.
Sat 2/145:31 amPWM - BKK
2 stops31h 14mDelta
Fri 2/209:30 pmBKK - PWM
2 stops26h 30mDelta
Deal found 12/26$1,090
This Korean Air deal was found by Cheapflights users on 12/26. 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.
Tue 2/175:31 amPWM - BKK
2 stops31h 14mKorean Air
Thu 2/1911:15 pmBKK - PWM
2 stops37h 03mKorean Air
Deal found 12/26$1,111
This Delta deal was found by Cheapflights users on 12/26. 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.
Mon 2/165:31 amPWM - BKK
2 stops31h 14mDelta
Fri 2/209:40 amBKK - PWM
2 stops25h 26mDelta
Deal found 12/26$1,100
This Delta deal was found by Cheapflights users on 12/26. 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.
Sat 2/145:31 amPWM - BKK
2 stops31h 14mDelta
Wed 2/1812:55 amBKK - PWM
2 stops34h 11mDelta
Deal found 12/26$1,100
This Delta deal was found by Cheapflights users on 12/26. 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.
Sun 2/1512:13 pmPWM - BKK
2 stops48h 32mDelta
Fri 2/209:40 amBKK - PWM
2 stops38h 20mDelta
Deal found 12/26$1,107
This Delta deal was found by Cheapflights users on 12/26. 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.
Fri 2/135:31 amPWM - BKK
2 stops29h 49mDelta
Wed 2/1812:55 amBKK - PWM
2 stops34h 11mDelta
Deal found 12/26$1,180
This Delta deal was found by Cheapflights users on 12/26. 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.
Mon 2/165:31 amPWM - BKK
2 stops31h 14mDelta
Fri 2/2012:55 amBKK - PWM
2 stops23h 05mDelta
Deal found 12/26$1,180
This Delta deal was found by Cheapflights users on 12/26. 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.
Tue 2/1712:13 pmPWM - BKK
2 stops48h 32mDelta
Fri 2/2012:55 amBKK - PWM
2 stops23h 05mDelta
Deal found 12/26$1,187
This Delta deal was found by Cheapflights users on 12/26. 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.
Fri 2/135:31 amPWM - BKK
2 stops29h 49mDelta
Thu 2/1912:55 amBKK - PWM
2 stops34h 11mDelta
Deal found 12/26$1,195
This Delta deal was found by Cheapflights users on 12/26. 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.
Sat 2/145:31 amPWM - BKK
2 stops31h 14mDelta
Fri 2/2012:55 amBKK - PWM
2 stops34h 11mDelta
Deal found 12/26$1,195

Find flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated December 26, 2025.

Round-trip from

$1,071
(Korean Air)

Popular in

July

Cheapest in

November

Average price

$1,116
From Portland to Thailand
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 26, 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

Mon 2/16

5:31 am-12:55 am

2 stops31h 24m

Bangkok Suvarnabhumi

Thu 2/19

9:40 am-11:06 pm

2 stops25h 26m

$1,060

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

$1,071

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 2/14

5:31 am-12:45 am

2 stops31h 14m

Bangkok Suvarnabhumi

Fri 2/20

9:30 pm-12:00 pm

2 stops26h 30m

$1,090

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 2/16

5:31 am-12:45 am

2 stops31h 14m

Bangkok Suvarnabhumi

Fri 2/20

9:40 am-11:06 pm

2 stops25h 26m

$1,100

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 2/14

5:31 am-12:45 am

2 stops31h 14m

Bangkok Suvarnabhumi

Wed 2/18

12:55 am-11:06 pm

2 stops34h 11m

$1,100

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 2/15

12:13 pm-12:45 am

2 stops48h 32m

Bangkok Suvarnabhumi

Fri 2/20

9:40 am-12:00 pm

2 stops38h 20m

$1,107

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 2/17

5:31 am-12:45 am

2 stops31h 14m

Bangkok Suvarnabhumi

Thu 2/19

11:15 pm-12:18 am

2 stops37h 03m

$1,111

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 2/13

5:31 am-11:20 pm

2 stops29h 49m

Bangkok Suvarnabhumi

Wed 2/18

12:55 am-11:06 pm

2 stops34h 11m

$1,180

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 2/16

5:31 am-12:45 am

2 stops31h 14m

Bangkok Suvarnabhumi

Fri 2/20

12:55 am-12:00 pm

2 stops23h 05m

$1,180

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 2/17

12:13 pm-12:45 am

2 stops48h 32m

Bangkok Suvarnabhumi

Fri 2/20

12:55 am-12:00 pm

2 stops23h 05m

$1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 12 results
1
2

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, October is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $660). 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 December 26, 2025.

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 47% on your trip compared to booking a flight in the morning.

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 December 26, 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
9,116 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

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,116 reviews
United Airlines
7.4
Good
9,116 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

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 Delta and Korean Air fly from Portland, Maine to Thailand in about 31h 24m. The time it takes to get you to your destination can typically vary by up to 14h 26m. 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, October is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $660). 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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,274FlexibilityNo cancel feeOn-time69%

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