Southeast Asia

$571+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BKK
Mar 7 — Mar 141
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Cheap 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 February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:45 pm
PWM
-
MNL
2 stops27h 10m
United Airlines
Wed 10/219:20 pm
MNL
-
PWM
3 stops31h 52m
United Airlines
Deal found 2/1$933
This Korean Air deal was found by Cheapflights users on 2/3. 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.
Sat 10/176:00 am
PWM
-
MNL
2 stops29h 59m
Korean Air
Tue 10/203:10 am
MNL
-
PWM
2 stops26h 46m
Korean Air
Deal found 2/3$948
This Etihad Airways deal was found by Cheapflights users on 2/2. 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.
Sun 11/17:02 am
PWM
-
BKK
2 stops36h 08m
Multiple Airlines
Sat 11/212:40 pm
BKK
-
PWM
2 stops43h 53m
Multiple Airlines
Deal found 2/2$997
This Japan Airlines deal was found by Cheapflights users on 2/2. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:40 pm
PWM
-
MNL
2 stops47h 05m
Multiple Airlines
Mon 3/911:30 pm
MNL
-
PWM
2 stops36h 07m
Multiple Airlines
Deal found 2/2$999
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 3/144:23 pm
PWM
-
SGN
3 stops67h 32m
United Airlines
Mon 4/137:00 am
SGN
-
PWM
3 stops38h 22m
United Airlines
Deal found 2/2$1,103
This Cathay Pacific deal was found by Cheapflights users on 2/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:17 am
PWM
-
MNL
2 stops39h 23m
Multiple Airlines
Tue 4/145:40 pm
MNL
-
PWM
2 stops41h 47m
Multiple Airlines
Deal found 2/3$1,106
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sun 3/155:45 am
PWM
-
SGN
3 stops54h 10m
United Airlines
Tue 4/77:00 am
SGN
-
PWM
3 stops49h 40m
United Airlines
Deal found 2/2$1,119
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 3/144:23 pm
PWM
-
SGN
3 stops67h 32m
United Airlines
Fri 4/107:00 am
SGN
-
PWM
3 stops43h 39m
United Airlines
Deal found 2/2$1,143
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sun 11/12:45 pm
PWM
-
BKK
3 stops55h 00m
United Airlines
Sat 11/213:40 pm
BKK
-
PWM
3 stops60h 09m
United Airlines
Deal found 2/2$1,167
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 3/195:45 am
PWM
-
SGN
3 stops54h 10m
United Airlines
Sun 4/127:00 am
SGN
-
PWM
3 stops43h 22m
United Airlines
Deal found 2/2$1,183
This United Airlines deal was found by Cheapflights users on 2/3. 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 2/89:40 am
PWM
-
BKK
3 stops37h 45m
United Airlines
Thu 2/124:55 pm
BKK
-
PWM
3 stops40h 14m
United Airlines
Deal found 2/3$1,190
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 3/144:23 pm
PWM
-
SGN
3 stops67h 32m
United Airlines
Thu 4/97:00 am
SGN
-
PWM
3 stops43h 22m
United Airlines
Deal found 2/2$1,203

Find 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$999
(Japan Airlines)

One-way from

$571
(United Airlines)

Popular in

November

Cheapest in

April
Provider with most accurate pricing for Portland-Manila Ninoy Aquino Intl flight deals.
Provider most trusted by Cheapflights users for Portland-Manila Ninoy Aquino Intl flights.
From Portland to Southeast Asia
One-way flight from Portland to Southeast Asia
Highest demand for flights based on searches. 11% potential increase in price ($177 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).

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 February 5, 2026.
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

PortlandManila

PWM - MNL

PWMMNL

Portland

Mon 3/2

5:40 pm-5:45 am

2 stops47h 05m

Manila Ninoy Aquino Intl

Mon 3/9

11:30 pm-11:37 pm

2 stops36h 07m

$999

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 3/17

4:23 pm-10:55 pm

3 stops43h 32m

Ho Chi Minh City

Wed 4/8

7:00 am-10:22 am

3 stops38h 22m

$1,103

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sat 3/14

4:23 pm-10:55 pm

3 stops67h 32m

Ho Chi Minh City

Mon 4/13

7:00 am-10:22 am

3 stops38h 22m

$1,103

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 3/16

3:44 pm-10:55 pm

3 stops44h 11m

Ho Chi Minh City

Mon 4/13

7:00 am-3:22 pm

3 stops43h 22m

$1,103

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 3/17

3:44 pm-10:55 pm

3 stops44h 11m

Ho Chi Minh City

Mon 4/13

7:00 am-10:22 am

3 stops38h 22m

$1,103

PortlandManila

PWM - MNL

PWMMNL

Portland

Tue 3/17

6:17 am-12:20 am

2 stops30h 03m

Manila Ninoy Aquino Intl

Tue 4/14

5:30 am-12:13 am

2 stops30h 43m

$1,106

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Wed 3/18

3:44 pm-10:55 pm

3 stops44h 11m

Ho Chi Minh City

Tue 4/7

7:00 am-3:22 pm

3 stops43h 22m

$1,119

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sun 3/15

5:45 am-10:55 pm

3 stops54h 10m

Ho Chi Minh City

Tue 4/7

7:00 am-9:40 pm

3 stops49h 40m

$1,119

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sun 3/15

5:45 am-10:55 pm

3 stops54h 10m

Ho Chi Minh City

Fri 4/10

7:00 am-3:39 pm

3 stops43h 39m

$1,143

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Wed 3/18

4:23 pm-10:55 pm

3 stops43h 32m

Ho Chi Minh City

Fri 4/10

7:00 am-3:39 pm

3 stops43h 39m

$1,143

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 34 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 $599). Flying from Portland, Maine to Southeast Asia in June is currently the most expensive (average of $973). 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.

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 February 5, 2026.
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.

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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.

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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.

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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.

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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 45h 02m. Fly via United Airlines, Delta, or Air Canada to get the fastest option. Airlines will cover a distance of 8429 mi. This flight may include one or multiple stops.

  • What are the most popular routes 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 $599). Flying from Portland, Maine to Southeast Asia in June is currently the most expensive (average of $973). 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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Alternative routes for Portland to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$845Average$1,301FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$924Average$1,047FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$946Average$1,223FlexibilityNo cancel feeOn-time79%

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