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Southeast Asia

$619+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
oct. 19 — oct. 261
dom. 10/19
dom. 10/26
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 septiembre 19, 2025.

Round-trip from

$1,048
(United Airlines)

One-way from

$619
(United Airlines)

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 septiembre 19, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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.
mié. 9/246:00 amPWM - BKK
2 stops32h 05mDelta
dom. 9/289:40 pmBKK - PWM
2 stops37h 31mDelta
Deal found 9/16$1,079
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/53:00 pmPWM - SGN
3 stops43h 55mUnited Airlines
dom. 11/911:05 pmSGN - PWM
2 stops46h 59mUnited Airlines
Deal found 9/17$1,131
This Delta deal was found by Cheapflights users on 9/16. 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.
mié. 11/56:00 amPWM - SGN
2 stops29h 20mDelta
dom. 11/911:50 pmSGN - PWM
2 stops48h 40mDelta
Deal found 9/16$1,203
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/138:00 amPWM - CEB
2 stops26h 05mUnited Airlines
lun. 11/39:30 amCEB - PWM
3 stops41h 42mUnited Airlines
Deal found 9/17$1,367
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/77:22 pmPWM - MNL
2 stops36h 38mUnited Airlines
mar. 11/119:55 amMNL - PWM
2 stops22h 04mUnited Airlines
Deal found 9/17$1,489
This Korean Air deal was found by Cheapflights users on 9/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/76:00 amPWM - MNL
2 stops40h 00mKorean Air
lun. 11/1012:55 amMNL - PWM
2 stops34h 24mKorean Air
Deal found 9/17$1,504
This United Airlines deal was found by Cheapflights users on 9/18. 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.
vie. 10/178:00 amPWM - CEB
2 stops26h 05mUnited Airlines
mar. 10/219:15 amCEB - PWM
2 stops24h 29mUnited Airlines
Deal found 9/18$1,512
This United Airlines deal was found by Cheapflights users on 9/18. 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.
lun. 12/89:45 amPWM - SGN
2 stops48h 05mUnited Airlines
lun. 1/56:00 amSGN - PWM
3 stops44h 39mUnited Airlines
Deal found 9/18$1,681
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/11:27 pmPWM - HKT
2 stops69h 43mMultiple Airlines
vie. 11/712:50 amHKT - PWM
2 stops47h 18mMultiple Airlines
Deal found 9/17$1,704
This Qatar Airways deal was found by Cheapflights users on 9/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/53:52 pmPWM - HKT
2 stops33h 03mQatar Airways
dom. 11/98:35 amHKT - PWM
2 stops39h 33mQatar Airways
Deal found 9/17$1,812
This Korean Air deal was found by Cheapflights users on 9/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/131:27 pmPWM - CEB
2 stops46h 03mKorean Air
dom. 11/212:15 amCEB - PWM
2 stops26h 43mKorean Air
Deal found 9/17$2,166
This Korean Air deal was found by Cheapflights users on 9/16. 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.
vie. 10/176:00 amPWM - CEB
2 stops29h 30mKorean Air
lun. 10/201:00 amCEB - PWM
2 stops33h 19mKorean Air
Deal found 9/16$2,206

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 septiembre 19, 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

mié. 1/14

3:12 pm-11:25 am

3 stops32h 13m

Bangkok Suvarnabhumi

lun. 2/16

4:55 pm-2:29 pm

3 stops33h 34m

$1,048

PortlandBangkok

PWM - BKK

PWMBKK

Portland

mié. 1/14

3:12 pm-11:25 am

3 stops32h 13m

Bangkok Suvarnabhumi

dom. 2/15

4:55 pm-3:11 pm

3 stops34h 16m

$1,088

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

mié. 11/5

3:00 pm-10:55 pm

3 stops43h 55m

Ho Chi Minh City

dom. 11/9

11:05 pm-10:04 am

2 stops46h 59m

$1,131

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

mié. 11/5

6:00 am-11:20 pm

2 stops29h 20m

Ho Chi Minh City

dom. 11/9

11:50 pm-12:30 pm

2 stops48h 40m

$1,203

PortlandCebu City

PWM - CEB

PWMCEB

Portland

lun. 10/13

8:00 am-10:05 pm

2 stops26h 05m

Cebu City Mactan Intl

lun. 11/3

9:30 am-2:12 pm

3 stops41h 42m

$1,367

PortlandManila

PWM - MNL

PWMMNL

Portland

vie. 11/7

7:22 pm-9:00 pm

2 stops36h 38m

Manila Ninoy Aquino Intl

mar. 11/11

11:25 pm-9:19 am

2 stops22h 54m

$1,489

PortlandManila

PWM - MNL

PWMMNL

Portland

vie. 11/7

6:00 am-11:00 am

2 stops40h 00m

Manila Ninoy Aquino Intl

lun. 11/10

12:55 am-10:19 pm

2 stops34h 24m

$1,504

PortlandCebu City

PWM - CEB

PWMCEB

Portland

vie. 10/17

8:00 am-10:05 pm

2 stops26h 05m

Cebu City Mactan Intl

mar. 10/21

9:15 am-9:44 pm

2 stops24h 29m

$1,512

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

lun. 12/8

6:00 am-9:50 pm

3 stops51h 50m

Ho Chi Minh City

lun. 1/5

6:00 am-2:39 pm

3 stops44h 39m

$1,681

PortlandPhuket City

PWM - HKT

PWMHKT

Portland

sáb. 11/1

1:27 pm-10:10 pm

2 stops69h 43m

Phuket City

vie. 11/7

12:50 am-12:08 pm

2 stops47h 18m

$1,704

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 28 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 septiembre 19, 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 septiembre 19, 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

Crew

8.7

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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

Crew

8.7

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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
1,560 reviews
Korean Air
8.4
Very good
1,140 reviews

Crew

8.7

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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
8,926 reviews
Korean Air
8.4
Very good
1,140 reviews

Crew

8.7

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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 32h 13m. 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 $691. United Airlines flights start at $693 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 - Ho Chi Minh City 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.

See more FAQs

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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 septiembre 19, 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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