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$704+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated July 3, 2025.

Round-trip from

$1,084
(United Airlines)

One-way from

$704
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$1,460
From Portland to Thailand
Search Deals
One-way flight from Portland to Thailand
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Highest demand for flights based on searches. 22% potential increase in price ($414 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($145 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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 9/246:14 amPWM - BKK
2 stops35h 21mUnited Airlines
Sun 9/289:35 amBKK - PWM
2 stops39h 58mUnited Airlines
Deal found 7/2$1,084
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:35 pmPWM - HKT
2 stops45h 35mDelta
Sun 9/2111:25 pmHKT - PWM
2 stops35h 46mDelta
Deal found 7/1$1,178
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amPWM - BKK
2 stops28h 45mDelta
Sat 9/272:35 amBKK - PWM
2 stops32h 36mDelta
Deal found 7/2$1,264
This Korean Air deal was found by Cheapflights users on 7/1. 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.
Fri 8/156:00 amPWM - BKK
2 stops30h 25mMultiple Airlines
Thu 8/212:35 amBKK - PWM
2 stops32h 28mMultiple Airlines
Deal found 7/1$1,287
This Korean Air deal was found by Cheapflights users on 6/30. 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 9/171:35 pmPWM - HKT
2 stops45h 35mKorean Air
Sun 9/2111:25 pmHKT - PWM
2 stops35h 46mKorean Air
Deal found 6/30$1,354
This Singapore Airlines deal was found by Cheapflights users on 7/2. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/172:17 pmPWM - HKT
3 stops36h 53mSingapore Airlines
Sun 9/219:55 amHKT - PWM
3 stops47h 07mSingapore Airlines
Deal found 7/2$1,497
This Etihad Airways deal was found by Cheapflights users on 7/2. 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 9/172:17 pmPWM - HKT
2 stops30h 23mEtihad Airways
Sat 9/2012:55 amHKT - PWM
2 stops32h 07mEtihad Airways
Deal found 7/2$3,469

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 July 3, 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

Wed 9/24

6:14 am-4:35 am

2 stops35h 21m

Bangkok Suvarnabhumi

Sun 9/28

9:35 am-2:33 pm

2 stops39h 58m

$1,084

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Wed 9/17

1:35 pm-10:10 pm

2 stops45h 35m

Phuket City

Sun 9/21

11:25 pm-12:11 am

2 stops35h 46m

$1,178

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 9/24

6:00 am-9:45 pm

2 stops28h 45m

Bangkok Suvarnabhumi

Sat 9/27

2:35 am-12:11 am

2 stops32h 36m

$1,264

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 8/15

6:00 am-11:25 pm

2 stops30h 25m

Bangkok Suvarnabhumi

Thu 8/21

2:35 am-12:03 am

2 stops32h 28m

$1,287

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Wed 9/17

1:35 pm-10:10 pm

2 stops45h 35m

Phuket City

Sun 9/21

11:25 pm-12:11 am

2 stops35h 46m

$1,354

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Wed 9/17

2:17 pm-2:10 pm

3 stops36h 53m

Phuket City

Sun 9/21

9:55 am-10:02 pm

3 stops47h 07m

$1,497

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

Wed 9/17

2:17 pm-7:40 am

2 stops30h 23m

Phuket City

Sat 9/20

12:55 am-10:02 pm

2 stops32h 07m

$3,469

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 8/17

6:00 am-4:35 am

2 stops35h 35m

$704

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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 $952). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,573). 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 July 3, 2025.

When flying from Portland, Maine to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Korean Air, Singapore Airlines, and Delta 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.
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,320 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,982 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Etihad Airways
7.4
Good
1,220 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,861 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • 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 $952). Flying from Portland, Maine to Thailand in December is currently the most expensive (average of $1,573). 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

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Top 3 airlines flying from Portland to Thailand

Discover the top 3 airlines 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,047Average$1,274FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,197Average$1,345FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,239Average$1,682FlexibilityNo cancel feeOn-timeN/A

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