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$997+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
May 19 — May 261
Tue 5/19
Tue 5/26
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 April 19, 2026.

This Etihad Airways deal was found by Cheapflights users on 4/15. 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.
Mon 5/47:30 am
PWM
-
BKK
2 stops47h 40m
Etihad Airways
Fri 5/89:15 am
BKK
-
PWM
2 stops48h 48m
Etihad Airways
Deal found 4/15$997
This Etihad Airways deal was found by Cheapflights users on 4/15. 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.
Sat 10/37:13 am
PWM
-
BKK
2 stops36h 02m
Multiple Airlines
Tue 10/203:05 pm
BKK
-
PWM
2 stops42h 00m
Multiple Airlines
Deal found 4/15$1,009
This Etihad Airways deal was found by Cheapflights users on 4/15. 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.
Sat 5/27:30 am
PWM
-
HKT
2 stops47h 50m
Etihad Airways
Wed 5/68:55 am
HKT
-
PWM
2 stops49h 08m
Etihad Airways
Deal found 4/15$1,027
This Trip.com deal was found by Cheapflights users on 4/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:28 am
PWM
-
BKK
2 stops48h 32m
Etihad Airways
Thu 5/79:00 pm
BKK
-
PWM
2 stops37h 03m
Etihad Airways
Deal found 4/18$1,046
This Etihad Airways deal was found by Cheapflights users on 4/17. 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.
Mon 10/57:53 am
PWM
-
BKK
2 stops28h 57m
Multiple Airlines
Tue 11/178:50 pm
BKK
-
PWM
2 stops32h 17m
Multiple Airlines
Deal found 4/17$1,265
This United Airlines deal was found by Cheapflights users on 4/18. 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 4/293:22 pm
PWM
-
BKK
3 stops31h 13m
United Airlines
Thu 5/73:45 pm
BKK
-
PWM
3 stops57h 29m
United Airlines
Deal found 4/18$1,466
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/411:34 am
PWM
-
BKK
3 stops35h 01m
United Airlines
Fri 5/83:45 pm
BKK
-
PWM
3 stops29h 38m
United Airlines
Deal found 4/14$1,498
This Korean Air deal was found by Cheapflights users on 4/18. 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 12/26:00 am
PWM
-
BKK
2 stops30h 45m
Multiple Airlines
Thu 12/1012:55 am
BKK
-
PWM
2 stops22h 58m
Multiple Airlines
Deal found 4/18$1,558
This United Airlines deal was found by Cheapflights users on 4/18. 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 11/15:30 am
PWM
-
BKK
3 stops41h 55m
United Airlines
Sat 11/74:55 pm
BKK
-
PWM
3 stops38h 29m
United Airlines
Deal found 4/18$1,560

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 April 19, 2026.

Round-trip from

$997
(Etihad Airways)

Popular in

January

Cheapest in

November

Average price

$1,212
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 ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 19, 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

Mon 5/4

7:30 am-6:10 pm

2 stops47h 40m

Bangkok Suvarnabhumi

Fri 5/8

9:15 am-11:03 pm

2 stops48h 48m

$997
Quickest round-trip

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 10/5

6:00 am-11:50 pm

2 stops30h 50m

Bangkok Suvarnabhumi

Tue 11/17

8:50 pm-5:07 pm

2 stops32h 17m

$1,009

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Sat 5/2

7:30 am-7:50 am

2 stops37h 20m

Phuket City

Wed 5/6

9:20 pm-11:03 pm

2 stops36h 43m

$1,027

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 4/29

3:22 pm-9:35 am

3 stops31h 13m

Bangkok Suvarnabhumi

Thu 5/7

3:45 pm-2:14 pm

3 stops57h 29m

$1,466

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 5/4

11:34 am-9:35 am

3 stops35h 01m

Bangkok Suvarnabhumi

Fri 5/8

3:45 pm-10:23 am

3 stops29h 38m

$1,498

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 10/8

4:48 pm-4:35 am

2 stops48h 47m

Bangkok Suvarnabhumi

Thu 10/15

3:45 pm-11:27 pm

3 stops42h 42m

$1,618

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Sorted by cheapest first

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
No data available for this route at this time. Please check back soon.

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 April 19, 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
9,604 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,604 reviews
United Airlines
7.4
Good
9,604 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 47h 40m. 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.

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 April 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,274FlexibilityNo cancel feeOn-time69%

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