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$1,076+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 14, 2026.

Round-trip from

$1,124
(United Airlines)

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 ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($41 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 14, 2026.

This Korean Air deal was found by Cheapflights users on 1/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:30 am
PWM
-
BKK
2 stops29h 55m
Korean Air
Sat 10/1711:30 pm
BKK
-
PWM
2 stops29h 26m
Korean Air
Deal found 1/13$1,076
This United Airlines deal was found by Cheapflights users on 1/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/82:32 pm
PWM
-
BKK
2 stops51h 38m
United Airlines
Thu 3/124:55 pm
BKK
-
PWM
3 stops63h 16m
United Airlines
Deal found 1/12$1,124
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Fri 2/275:45 am
PWM
-
BKK
3 stops41h 40m
United Airlines
Fri 3/64:55 pm
BKK
-
PWM
3 stops34h 19m
United Airlines
Deal found 1/13$1,180
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/284:15 pm
PWM
-
BKK
2 stops44h 05m
United Airlines
Sat 3/74:55 pm
BKK
-
PWM
3 stops39h 16m
United Airlines
Deal found 1/14$1,191
This Korean Air deal was found by Cheapflights users on 1/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/82:30 pm
PWM
-
BKK
2 stops47h 25m
Korean Air
Thu 3/129:30 pm
BKK
-
PWM
2 stops36h 52m
Korean Air
Deal found 1/12$1,211
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Thu 10/16:00 am
PWM
-
BKK
2 stops30h 55m
United Airlines
Sat 10/173:40 pm
BKK
-
PWM
3 stops38h 44m
United Airlines
Deal found 1/13$1,219
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Mon 6/226:00 am
PWM
-
BKK
3 stops64h 45m
United Airlines
Mon 7/209:35 am
BKK
-
PWM
2 stops46h 52m
United Airlines
Deal found 1/14$1,293
This Korean Air deal was found by Cheapflights users on 1/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:25 am
PWM
-
HKT
2 stops52h 45m
Korean Air
Wed 3/2511:40 pm
HKT
-
PWM
2 stops34h 42m
Korean Air
Deal found 1/13$1,376
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:31 am
PWM
-
HKT
2 stops28h 39m
Korean Air
Fri 3/611:40 pm
HKT
-
PWM
2 stops35h 26m
Korean Air
Deal found 1/13$1,474
This Booking.com deal was found by Cheapflights users on 1/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:00 am
PWM
-
BKK
2 stops36h 05m
Air Canada
Mon 7/207:05 am
BKK
-
PWM
2 stops26h 52m
Air Canada
Deal found 1/14$1,613
This oojo deal was found by Cheapflights users on 1/14. 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.
Sat 2/285:57 pm
PWM
-
HKT
2 stops60h 58m
Qatar Airways
Sat 3/78:30 pm
HKT
-
PWM
2 stops38h 04m
Qatar Airways
Deal found 1/14$1,744
This Qatar Airways deal was found by Cheapflights users on 1/13. 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.
Fri 2/2712:29 pm
PWM
-
HKT
2 stops42h 26m
Qatar Airways
Fri 3/610:30 am
HKT
-
PWM
3 stops43h 49m
Qatar Airways
Deal found 1/13$2,134

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 14, 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

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

$1,124

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 2/27

5:45 am-11:25 am

3 stops41h 40m

Bangkok Suvarnabhumi

Fri 3/6

4:55 pm-3:14 pm

3 stops34h 19m

$1,180

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 2/28

5:45 am-11:25 am

3 stops41h 40m

Bangkok Suvarnabhumi

Sat 3/7

4:55 pm-8:11 pm

3 stops39h 16m

$1,180

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 3/8

2:30 pm-12:55 am

2 stops47h 25m

Bangkok Suvarnabhumi

Thu 3/12

9:30 pm-11:22 pm

2 stops36h 52m

$1,211

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 6/22

6:00 am-9:45 am

3 stops64h 45m

Bangkok Suvarnabhumi

Mon 7/20

9:35 am-9:27 pm

2 stops46h 52m

$1,293

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

$1,376

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 2/27

5:31 am-10:10 pm

2 stops28h 39m

Phuket City

Fri 3/6

11:40 pm-11:06 pm

2 stops35h 26m

$1,474

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Sat 2/28

5:57 pm-6:55 pm

2 stops60h 58m

Phuket City

Sat 3/7

8:30 pm-10:34 pm

2 stops38h 04m

$1,744

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 2/27

12:29 pm-6:55 pm

2 stops42h 26m

Phuket City

Fri 3/6

10:30 am-6:19 pm

3 stops43h 49m

$2,134

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

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, 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 14, 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 14, 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
9,156 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,156 reviews
United Airlines
7.4
Good
9,156 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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, Korean Air, and Qatar Airways fly from Portland, Maine to Thailand in about 51h 38m. The time it takes to get you to your destination can typically vary by up to 9h 20m. 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

Browse thousands of different options on Cheapflights for your next trip

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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 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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