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$569+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Apr 29 — May 61
Wed 4/29
Wed 5/6
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 30, 2026.

This Etihad Airways deal was found by Cheapflights users on 3/26. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:10 am
PWM
-
BKK
2 stops29h 40m
Multiple Airlines
Sun 5/173:55 pm
BKK
-
PWM
2 stops41h 51m
Multiple Airlines
Deal found 3/26$954
This Etihad Airways deal was found by Cheapflights users on 3/27. 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.
Tue 3/316:17 am
PWM
-
BKK
2 stops37h 28m
Multiple Airlines
Thu 4/28:40 pm
BKK
-
PWM
2 stops37h 10m
Multiple Airlines
Deal found 3/27$975
This Etihad Airways deal was found by Cheapflights users on 3/26. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:10 am
PWM
-
HKT
2 stops37h 40m
Multiple Airlines
Sun 4/199:05 pm
HKT
-
PWM
2 stops36h 41m
Multiple Airlines
Deal found 3/26$981
This Etihad Airways deal was found by Cheapflights users on 3/29. 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.
Sun 5/37:30 am
PWM
-
BKK
2 stops36h 15m
Etihad Airways
Thu 5/79:40 am
BKK
-
PWM
2 stops48h 23m
Etihad Airways
Deal found 3/29$996
This Etihad Airways deal was found by Cheapflights users on 3/28. 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.
Tue 5/127:20 am
PWM
-
HKT
2 stops37h 15m
Multiple Airlines
Tue 5/193:20 pm
HKT
-
PWM
2 stops42h 26m
Multiple Airlines
Deal found 3/28$1,004
This Etihad Airways deal was found by Cheapflights users on 3/27. 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.
Fri 9/187:13 am
PWM
-
BKK
2 stops29h 37m
Multiple Airlines
Sat 10/33:05 pm
BKK
-
PWM
2 stops42h 44m
Multiple Airlines
Deal found 3/27$1,008
This Etihad Airways deal was found by Cheapflights users on 3/25. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:20 am
PWM
-
HKT
2 stops41h 55m
Etihad Airways
Sun 5/103:20 pm
HKT
-
PWM
2 stops42h 43m
Etihad Airways
Deal found 3/25$1,026
This Korean Air deal was found by Cheapflights users on 3/29. 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 9/62:35 pm
PWM
-
BKK
2 stops47h 30m
Korean Air
Sun 9/2711:30 pm
BKK
-
PWM
2 stops34h 03m
Korean Air
Deal found 3/29$1,075
This Etihad Airways deal was found by Cheapflights users on 3/25. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:09 am
PWM
-
BKK
2 stops36h 36m
Etihad Airways
Mon 9/143:15 am
BKK
-
PWM
2 stops29h 52m
Etihad Airways
Deal found 3/25$1,148
This United Airlines deal was found by Cheapflights users on 3/29. 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 9/67:35 pm
PWM
-
BKK
2 stops46h 00m
United Airlines
Sun 9/273:45 pm
BKK
-
PWM
3 stops36h 27m
United Airlines
Deal found 3/29$1,157
This oojo deal was found by Cheapflights users on 3/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
PWM
-
BKK
2 stops26h 20m
Air India
Sun 9/278:20 pm
BKK
-
PWM
2 stops28h 02m
Air India
Deal found 3/26$1,176
This oojo deal was found by Cheapflights users on 3/29. 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.
Fri 4/36:00 am
PWM
-
BKK
2 stops37h 20m
Qatar Airways
Thu 4/92:50 am
BKK
-
PWM
2 stops32h 08m
Qatar Airways
Deal found 3/29$1,217

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 30, 2026.

Round-trip from

$954
(Etihad Airways)

One-way from

$569
(Japan Airlines)

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 ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($43 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 30, 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

Sun 5/10

7:10 am-11:50 pm

2 stops29h 40m

Bangkok Suvarnabhumi

Sun 5/17

3:55 pm-10:46 pm

2 stops41h 51m

$954

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Fri 4/10

7:10 am-7:50 am

2 stops37h 40m

Phuket City

Sun 4/19

9:05 pm-10:46 pm

2 stops36h 41m

$981

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 5/3

7:30 am-6:45 am

2 stops36h 15m

Bangkok Suvarnabhumi

Thu 5/7

9:40 am-11:03 pm

2 stops48h 23m

$996

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Tue 5/12

7:20 am-7:35 am

2 stops37h 15m

Phuket City

Tue 5/19

3:20 pm-10:46 pm

2 stops42h 26m

$1,004

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Wed 5/6

7:20 am-12:15 pm

2 stops41h 55m

Phuket City

Sun 5/10

3:20 pm-11:03 pm

2 stops42h 43m

$1,026
Quickest round-trip

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 9/11

7:09 am-6:45 am

2 stops36h 36m

Bangkok Suvarnabhumi

Mon 9/14

3:15 am-10:07 pm

2 stops29h 52m

$1,148

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 5/13

2:08 pm-9:35 am

3 stops56h 27m

Bangkok Suvarnabhumi

Wed 5/20

9:35 am-11:30 pm

2 stops48h 55m

$1,294

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 6/9

2:37 pm-6:15 am

2 stops28h 38m

Bangkok Suvarnabhumi

Fri 6/19

9:00 pm-12:51 am

2 stops38h 51m

$1,412

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 5/3

5:30 am-4:35 am

2 stops36h 05m

Bangkok Suvarnabhumi

Thu 5/7

3:45 pm-2:14 pm

3 stops33h 29m

$1,522

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 9/18

10:04 am-9:35 am

3 stops36h 31m

Bangkok Suvarnabhumi

Sat 10/3

9:35 am-7:24 pm

2 stops44h 49m

$1,571

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 11 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 $630). 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 30, 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 30, 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
9,514 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

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
9,514 reviews
United Airlines
7.4
Good
9,514 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

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 Etihad Airways fly from Portland, Maine to Thailand in about 36h 15m. The time it takes to get you to your destination can typically vary by up to . Portland, Maine and Thailand are separated by a distance of 8429 mi.

  • 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 $630). 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 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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