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$552+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap 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 March 12, 2026.

This oojo deal was found by Cheapflights users on 3/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
PWM
-
BKK
2 stops36h 05m
Turkish Airlines
Wed 5/276:45 am
BKK
-
PWM
2 stops28h 11m
Turkish Airlines
Deal found 3/11$946
This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
PWM
-
BKK
2 stops43h 10m
Etihad Airways
Tue 5/263:15 am
BKK
-
PWM
2 stops31h 41m
Etihad Airways
Deal found 3/10$965
This Etihad Airways deal was found by Cheapflights users on 3/9. 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 4/237:07 am
PWM
-
BKK
2 stops29h 43m
Multiple Airlines
Thu 4/303:55 pm
BKK
-
PWM
2 stops41h 51m
Multiple Airlines
Deal found 3/9$977
This Expedia deal was found by Cheapflights users on 3/10. 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.
Thu 4/96:00 am
PWM
-
BKK
2 stops42h 50m
Multiple Airlines
Wed 4/153:15 am
BKK
-
PWM
2 stops30h 44m
Multiple Airlines
Deal found 3/10$997
This Turkish Airlines deal was found by Cheapflights users on 3/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
PWM
-
BKK
2 stops46h 25m
Turkish Airlines
Mon 5/2510:45 pm
BKK
-
PWM
2 stops60h 11m
Turkish Airlines
Deal found 3/10$1,029
This Priceline deal was found by Cheapflights users on 3/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
PWM
-
BKK
2 stops30h 50m
Etihad Airways
Sun 4/123:05 pm
BKK
-
PWM
2 stops43h 54m
Etihad Airways
Deal found 3/6$1,092
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 10/19:34 am
PWM
-
BKK
3 stops37h 01m
United Airlines
Wed 10/289:10 am
BKK
-
PWM
2 stops24h 47m
United Airlines
Deal found 3/7$1,139
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
PWM
-
BKK
3 stops40h 35m
United Airlines
Wed 5/273:45 pm
BKK
-
PWM
3 stops33h 49m
United Airlines
Deal found 3/11$1,200
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am
PWM
-
BKK
3 stops40h 35m
United Airlines
Wed 10/289:10 am
BKK
-
PWM
2 stops39h 42m
United Airlines
Deal found 3/11$1,201
This Korean Air deal was found by Cheapflights users on 3/8. 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 9/106:30 am
PWM
-
HKT
2 stops52h 40m
Korean Air
Mon 9/1411:25 pm
HKT
-
PWM
2 stops34h 08m
Korean Air
Deal found 3/8$1,285
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Wed 10/286:00 am
PWM
-
HKT
2 stops53h 10m
Korean Air
Sun 11/111:40 pm
HKT
-
PWM
2 stops36h 09m
Korean Air
Deal found 3/9$1,335
This Expedia deal was found by Cheapflights users on 3/10. 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 4/247:30 am
PWM
-
HKT
2 stops50h 25m
Multiple Airlines
Fri 5/110:15 pm
HKT
-
PWM
2 stops36h 21m
Multiple Airlines
Deal found 3/10$1,466

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 March 12, 2026.

Round-trip from

$946
(oojo)

One-way from

$552
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$1,174
From Portland to Thailand
Search Deals
One-way flight from Portland to Thailand
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 12, 2026.
Use the filters below to find and compare flights from Portland to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 5/13

6:00 am-12:10 pm

2 stops43h 10m

Bangkok Suvarnabhumi

Tue 5/26

3:15 am-11:56 pm

2 stops31h 41m

$965

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 4/23

7:07 am-11:50 pm

2 stops29h 43m

Bangkok Suvarnabhumi

Thu 4/30

3:55 pm-10:46 pm

2 stops41h 51m

$977

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 4/25

6:00 am-9:35 am

3 stops40h 35m

Bangkok Suvarnabhumi

Sat 5/2

3:45 pm-10:18 am

3 stops29h 33m

$1,280

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 5/16

9:20 am-9:35 am

3 stops37h 15m

Bangkok Suvarnabhumi

Mon 5/25

3:45 pm-10:04 am

3 stops29h 19m

$1,365

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 4/9

6:04 am-9:35 am

3 stops64h 31m

Bangkok Suvarnabhumi

Thu 4/16

3:45 pm-5:32 pm

3 stops36h 47m

$1,409

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 4/5

9:45 am-9:35 am

3 stops60h 50m

Bangkok Suvarnabhumi

Sun 4/12

3:45 pm-5:32 pm

3 stops60h 47m

$1,530

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Mon 6/29

6:00 am-10:10 pm

2 stops29h 10m

Phuket City

Sat 7/4

11:25 pm-11:53 pm

2 stops35h 28m

$1,713

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Mon 6/29

6:50 pm-10:10 pm

2 stops40h 20m

Phuket City

Sat 7/4

11:25 pm-11:59 pm

2 stops35h 34m

$1,745

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 4/24

7:07 am-7:45 am

2 stops37h 38m

Phuket City

Fri 5/1

9:55 pm-11:27 pm

3 stops36h 32m

$2,263

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 4/1

6:04 am-9:35 am

3 stops64h 31m

Bangkok Suvarnabhumi

Fri 4/10

3:45 pm-3:39 pm

3 stops34h 54m

$4,499

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 17 resultsSorted by cheapest first
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, March is the cheapest month in which you can book a flight from Portland, Maine to Thailand (average of $590). Flying from Portland, Maine to Thailand in June is currently the most expensive (average of $1,101). 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 March 12, 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 March 12, 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
9,418 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

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
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

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 Etihad Airways, United Airlines, and Delta fly from Portland, Maine to Thailand in about 40h 20m. The time it takes to get you to your destination can typically vary by up to 2h 50m. Portland, Maine and Thailand are separated by a distance of 8784 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 $590). Flying from Portland, Maine to Thailand in June is currently the most expensive (average of $1,101). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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