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Southeast Asia

$708+ Cheap flights from Portland, ME (PWM) to Southeast Asia

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Portland to Southeast Asia

Keep the following information in mind while searching for Portland to Southeast Asia flight deals. Data was last updated September 16, 2025.

Round-trip from

$1,048
(United Airlines)

One-way from

$708
(Korean Air)

Popular in

December

Cheapest in

July

Average price

$1,300
From Portland to Southeast Asia
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One-way flight from Portland to Southeast Asia
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Highest demand for flights based on searches. 15% potential increase in price ($270 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Southeast Asia

Cheapest flights from Portland to Southeast Asia
Explore the most affordable flight options available from Portland to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/293:20 pmPWM - BKK
3 stops33h 05mUnited Airlines
Wed 11/54:55 pmBKK - PWM
3 stops33h 17mUnited Airlines
Deal found 9/14$1,048
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:54 pmPWM - BKK
3 stops31h 31mUnited Airlines
Thu 11/64:55 pmBKK - PWM
3 stops57h 17mUnited Airlines
Deal found 9/15$1,064
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:35 pmPWM - BKK
2 stops36h 40mDelta
Sun 9/289:40 pmBKK - PWM
2 stops37h 31mDelta
Deal found 9/15$1,079
This Delta deal was found by Cheapflights users on 9/13. 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 11/51:27 pmPWM - SGN
2 stops59h 23mDelta
Sun 11/911:50 pmSGN - PWM
2 stops34h 29mDelta
Deal found 9/13$1,123
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:22 pmPWM - SGN
3 stops39h 33mUnited Airlines
Sun 11/911:05 pmSGN - PWM
2 stops51h 07mUnited Airlines
Deal found 9/15$1,132
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:14 amPWM - MNL
2 stops39h 31mMultiple Airlines
Wed 11/56:45 pmMNL - PWM
2 stops35h 20mMultiple Airlines
Deal found 9/14$1,226
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:27 pmPWM - BKK
2 stops48h 18mKorean Air
Thu 11/611:15 pmBKK - PWM
2 stops35h 04mKorean Air
Deal found 9/15$1,292
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:00 amPWM - CEB
2 stops28h 05mUnited Airlines
Mon 11/39:30 amCEB - PWM
3 stops36h 49mUnited Airlines
Deal found 9/15$1,367
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:27 pmPWM - HKT
2 stops45h 43mKorean Air
Thu 11/611:40 pmHKT - PWM
2 stops26h 18mKorean Air
Deal found 9/15$1,393
This Korean Air deal was found by Cheapflights users on 9/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:00 amPWM - MNL
2 stops28h 25mKorean Air
Tue 11/412:55 amMNL - PWM
2 stops26h 03mKorean Air
Deal found 9/14$1,425
This Qatar Airways deal was found by Cheapflights users on 9/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:30 pmPWM - BKK
2 stops35h 55mQatar Airways
Sat 9/272:30 amBKK - PWM
2 stops30h 37mQatar Airways
Deal found 9/13$1,433
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 11/77:22 pmPWM - MNL
2 stops36h 38mUnited Airlines
Tue 11/119:55 amMNL - PWM
2 stops26h 22mUnited Airlines
Deal found 9/13$1,482

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Southeast Asia 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 September 16, 2025.
Use the filters below to find and compare flights from Portland to Southeast Asia that are best for you.

Fly from

Portland

Fly to

Southeast Asia

Route

Depart

Return

Price

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 10/29

3:20 pm-11:25 am

3 stops33h 05m

Bangkok Suvarnabhumi

Wed 11/5

4:55 pm-2:12 pm

3 stops33h 17m

$1,048

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 10/30

4:54 pm-11:25 am

3 stops31h 31m

Bangkok Suvarnabhumi

Thu 11/6

4:55 pm-2:12 pm

3 stops57h 17m

$1,064

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

9:00 am-11:25 am

3 stops38h 25m

Bangkok Suvarnabhumi

Mon 2/16

4:55 pm-2:29 pm

3 stops33h 34m

$1,073

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sun 3/1

4:11 pm-10:55 pm

3 stops42h 44m

Ho Chi Minh City

Mon 3/16

11:05 pm-11:17 pm

2 stops35h 12m

$1,074

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 2/9

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Wed 4/1

11:15 pm-1:52 pm

2 stops25h 37m

$1,096

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sun 2/1

4:10 pm-9:50 pm

2 stops65h 40m

Ho Chi Minh City

Mon 2/16

11:05 pm-9:14 pm

2 stops34h 09m

$1,103

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 1/14

6:00 am-11:25 am

3 stops41h 25m

Bangkok Suvarnabhumi

Sun 2/15

4:55 pm-9:14 pm

3 stops40h 19m

$1,113

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Wed 11/5

1:27 pm-12:50 pm

2 stops59h 23m

Ho Chi Minh City

Sun 11/9

11:50 pm-10:19 pm

2 stops34h 29m

$1,123

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Wed 11/5

3:20 pm-10:55 pm

3 stops43h 35m

Ho Chi Minh City

Sun 11/9

11:05 pm-2:12 pm

2 stops51h 07m

$1,132

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 1/5

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Sat 1/31

11:05 pm-6:52 pm

2 stops31h 47m

$1,136

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 33 results
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Best time to book a flight from Portland to Southeast Asia

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

What is the cheapest month to book a flight from Portland, Maine to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Southeast Asia (average of $900). Flying from Portland, Maine to Southeast Asia in December is currently the most expensive (average of $1,507). 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 YJX?

Find hourly flight availability from Portland to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Southeast Asia as you normally would.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. 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 Southeast Asia. Reviews last updated September 16, 2025.
See what other customers who have flown with Korean Air, Japan Airlines, and United Airlines from Portland to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,140 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

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
1,140 reviews
Korean Air
8.4
Very good
1,140 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

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.
Japan Airlines
8.3
Very good
1,559 reviews
Korean Air
8.4
Very good
1,140 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

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
8,924 reviews
Korean Air
8.4
Very good
1,140 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

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 Southeast Asia. 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 Southeast Asia?

    Most people fly from Portland (PWM) if they book a flight from Portland to Southeast Asia. Portland is conveniently located just 2.9 mi from Portland’s city center.

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

    There are many flights that can get you from Portland, Maine to Southeast Asia in 33h 05m. Fly via United Airlines, Korean Air, or Qatar Airways to get the fastest option. Airlines will cover a distance of 8429 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portland, Maine to Southeast Asia one-way?

    To fly one-way, consider booking your trip with Korean Air, which is currently one of the cheapest options available, starting at $708. Qatar Airways flights start at $921 while deals on Delta start at $1,232 one-way.

  • What are the most popular routes from Portland, Maine to Southeast Asia?

    Most travelers choose Portland - Bangkok Suvarnabhumi, Portland - Manila Ninoy Aquino Intl or Portland - Cebu City Mactan Intl when deciding on the best route from Portland, Maine to Southeast Asia.

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

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

  • How can I find direct flights from Portland to Southeast Asia?

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

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

    Yes. Cheapflights offers flight deals from Portland to Southeast Asia 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 Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Southeast Asia (average of $900). Flying from Portland, Maine to Southeast Asia in December is currently the most expensive (average of $1,507). 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.

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Top 3 airlines flying from Portland to Southeast Asia

Discover the top 3 airlines that operate flights from Portland to Southeast Asia. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$946Average$1,223FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,047Average$1,343FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,259Average$1,673FlexibilityNo cancel feeOn-time81%

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