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$1,033+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Etihad Airways deal was found by Cheapflights users on 12/9. 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.
Sun 12/216:00 amPWM - HKT
2 stops41h 55mMultiple Airlines
Sat 1/33:30 pmHKT - PWM
2 stops37h 09mMultiple Airlines
Deal found 12/9$18,930

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 12, 2025.

Round-trip from

$1,033
(Expedia)

Popular in

December

Cheapest in

September

Average price

$1,467
From Portland to Thailand
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 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 12, 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

Thu 1/22

2:35 pm-12:45 am

2 stops46h 10m

Bangkok Suvarnabhumi

Mon 1/26

9:30 pm-12:20 am

2 stops38h 50m

$1,073

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 1/22

6:00 am-5:10 am

2 stops35h 10m

Bangkok Suvarnabhumi

Mon 1/26

9:10 am-2:31 pm

2 stops41h 21m

$1,083

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

6:00 am-5:10 am

2 stops35h 10m

Bangkok Suvarnabhumi

Mon 2/16

4:55 pm-3:14 pm

3 stops34h 19m

$1,099

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

6:00 am-5:10 am

2 stops35h 10m

Bangkok Suvarnabhumi

Sun 2/15

4:55 pm-2:23 pm

3 stops33h 28m

$1,114

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Mon 2/16

5:31 am-10:10 pm

2 stops28h 39m

Phuket City

Mon 3/16

11:40 pm-4:10 pm

2 stops27h 30m

$1,298

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Mon 2/16

6:30 am-10:10 pm

2 stops51h 40m

Phuket City

Mon 3/16

11:40 pm-11:24 pm

2 stops34h 44m

$1,512

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 12/26

5:45 am-9:30 pm

2 stops27h 45m

$1,648

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 12/26

7:30 pm-11:25 am

3 stops75h 55m

$1,733

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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 12, 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 12, 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
9,095 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 and United Airlines fly from Portland, Maine to Thailand in about 35h 10m. The time it takes to get you to your destination can typically vary by up to 11h. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,234FlexibilityNo cancel feeOn-time69%

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