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$566+ Cheap flights from Portland, ME (PWM) to Bangkok

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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap flight deals from Portland to Bangkok

Cheapest flights from Portland to Bangkok
Explore the most affordable flight options available from Portland to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This oojo deal was found by Cheapflights users on 6/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
PWM
-
BKK
2 stops30h 50m
Etihad Airways
Thu 10/18:45 pm
BKK
-
PWM
2 stops38h 07m
Etihad Airways
Deal found 6/8$1,005
This Ovago deal was found by Cheapflights users on 6/5. 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.
Mon 8/246:00 am
PWM
-
BKK
2 stops37h 45m
Etihad Airways
Thu 9/39:15 am
BKK
-
PWM
2 stops49h 59m
Etihad Airways
Deal found 6/5$1,038
This BusinessClass deal was found by Cheapflights users on 6/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:45 am
PWM
-
BKK
2 stops31h 05m
Etihad Airways
Mon 8/103:15 am
BKK
-
PWM
2 stops55h 59m
Etihad Airways
Deal found 6/4$1,046
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:37 pm
PWM
-
BKK
3 stops30h 58m
United Airlines
Mon 9/77:00 am
BKK
-
PWM
2 stops25h 23m
United Airlines
Deal found 6/8$1,176
This Etihad Airways deal was found by Cheapflights users on 6/7. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:17 pm
PWM
-
BKK
2 stops30h 28m
Etihad Airways
Thu 9/109:00 pm
BKK
-
PWM
2 stops37h 52m
Etihad Airways
Deal found 6/7$1,178
This United Airlines deal was found by Cheapflights users on 6/5. 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 8/245:03 pm
PWM
-
BKK
3 stops29h 32m
United Airlines
Thu 9/37:00 am
BKK
-
PWM
2 stops43h 51m
United Airlines
Deal found 6/5$1,184
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sun 9/67:40 am
PWM
-
BKK
3 stops38h 55m
United Airlines
Thu 9/107:00 am
BKK
-
PWM
2 stops27h 32m
United Airlines
Deal found 6/7$1,226
This BusinessClass deal was found by Cheapflights users on 6/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:15 am
PWM
-
BKK
2 stops36h 20m
ANA
Wed 7/297:00 am
BKK
-
PWM
2 stops27h 30m
ANA
Deal found 6/7$1,409
This BusinessClass deal was found by Cheapflights users on 6/8. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:00 am
PWM
-
BKK
2 stops30h 55m
ANA
Thu 7/307:00 am
BKK
-
PWM
2 stops27h 30m
ANA
Deal found 6/8$1,412
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 6/246:00 am
PWM
-
BKK
2 stops35h 35m
United Airlines
Fri 7/179:35 am
BKK
-
PWM
2 stops49h 16m
United Airlines
Deal found 6/7$1,530

Find flight deals from Portland to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 9, 2026.

Round-trip from

$1,005
(oojo)

One-way from

$566
(oojo)

Popular in

June

Cheapest in

May

Average price

$1,682
From Portland to Bangkok
Search Deals
One-way flight from Portland to Bangkok
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($116 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 June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Bangkok 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 June 9, 2026.
Use the filters below to find and compare flights from Portland to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 9/6

1:17 pm-6:45 am

2 stops30h 28m

Bangkok Suvarnabhumi

Thu 9/10

9:00 pm-11:52 pm

2 stops37h 52m

$1,178

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 8/24

5:03 pm-9:35 am

3 stops29h 32m

Bangkok Suvarnabhumi

Thu 9/3

7:00 am-3:51 pm

2 stops43h 51m

$1,184

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 9/6

7:40 am-9:35 am

3 stops38h 55m

Bangkok Suvarnabhumi

Thu 9/10

7:00 am-11:32 pm

2 stops27h 32m

$1,226

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 9/28

7:57 am-9:35 am

3 stops38h 38m

Bangkok Suvarnabhumi

Fri 10/2

7:00 am-11:28 pm

2 stops27h 28m

$1,226
Quickest round-trip

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 9/13

9:49 am-9:35 am

3 stops36h 46m

Bangkok Suvarnabhumi

Thu 10/1

7:00 am-8:00 pm

2 stops24h 00m

$1,226
Cheapest one-way

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 7/22

2:40 pm-5:45 am

2 stops52h 05m

$591

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 7/21

1:25 pm-3:10 pm

2 stops38h 45m

$607

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 7/23

6:00 am-3:10 pm

2 stops46h 10m

$648

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 7/21

6:00 am-9:35 am

3 stops40h 35m

$695
Quickest one-way

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 7/23

3:37 pm-9:35 am

3 stops30h 58m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Portland to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok 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 Bangkok

How much does it cost to fly round-trip from Portland, Maine to Bangkok?

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated June 9, 2026.
Read through reviews of airlines operating flights from Portland to Bangkok, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,796 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,796 reviews
United Airlines
7.4
Good
9,796 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Bangkok. 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 Bangkok?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly out of when you book flights from Portland to Bangkok. 1 airline have flights from Portland to Bangkok on a regular basis. Booking flights from Portland to Bangkok should not be difficult; the airport handles an average of 0 outbound flights to Bangkok per day.

  • How long is the flight from Portland, Maine to Bangkok?

    Etihad Airways and United Airlines can get you from Portland, Maine to Bangkok in just under 29h 32m. Your travel time can differ by up to 56m. There are 8429 mi between Portland, Maine and Bangkok. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Portland, Maine to Bangkok round-trip?

    According to our current data, United Airlines ($1,047), offers the cheapest pricing from Portland, Maine to Bangkok. United Airlines is currently priced 17% below the average price you’ll pay for this route.

  • Can I find deals for flights from Portland to Bangkok that include hotel bookings?

    Yes. In addition to deals on Portland to Bangkok flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Bangkok?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Bangkok.

  • Can I find deals for business class flights from Portland to Bangkok?

    Yes. Cheapflights offers flight deals from Portland to Bangkok 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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Alternative routes for Portland to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Suvarnabhumi flights
Boston to Phuket City flights
Boston to Chiang Mai flights
Bangor to Suvarnabhumi flights
Portland to Phuket City flights
Boston to Udon Thani flights

Top airline flying from Portland to Bangkok

Discover the top airline that operate flights from Portland to Bangkok. 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,116FlexibilityNo cancel feeOn-time69%

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