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Southeast Asia

$371+ Cheap flights from Boston (BOS) 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BKK
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
1 adult, Economy
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Cheap flight deals from Boston to Southeast Asia

Cheapest flights from Boston to Southeast Asia
Explore the most affordable flight options available from Boston to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 20, 2026.

This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:40 pm
BOS
-
HKT
1 stop38h 40m
Etihad Airways
Tue 5/53:20 pm
HKT
-
BOS
1 stop34h 20m
Etihad Airways
Deal found 3/17$758
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:25 pm
BOS
-
KUL
1 stop28h 00m
Etihad Airways
Wed 4/299:55 pm
KUL
-
BOS
1 stop28h 45m
Etihad Airways
Deal found 3/16$792
This Gotogate deal was found by Cheapflights users on 3/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:25 pm
BOS
-
HKT
1 stop20h 30m
Etihad Airways
Mon 5/43:20 pm
HKT
-
BOS
1 stop34h 20m
Etihad Airways
Deal found 3/15$794
This oojo deal was found by Cheapflights users on 3/20. 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.
Tue 5/54:25 pm
BOS
-
HKT
1 stop28h 10m
Etihad Airways
Tue 5/129:20 pm
HKT
-
BOS
1 stop28h 20m
Etihad Airways
Deal found 3/20$796
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:50 pm
BOS
-
KUL
1 stop22h 20m
Turkish Airlines
Wed 6/39:50 am
KUL
-
BOS
1 stop22h 05m
Turkish Airlines
Deal found 3/16$813
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/64:25 pm
BOS
-
BKK
1 stop32h 55m
Etihad Airways
Sun 4/123:15 am
BKK
-
BOS
1 stop22h 25m
Etihad Airways
Deal found 3/15$814
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:13 pm
BOS
-
BKK
2 stops27h 42m
ANA
Thu 12/107:10 am
BKK
-
BOS
2 stops26h 32m
ANA
Deal found 3/15$815
This oojo deal was found by Cheapflights users on 3/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:40 pm
BOS
-
BKK
1 stop38h 55m
Etihad Airways
Sun 3/298:50 am
BKK
-
BOS
1 stop41h 20m
Etihad Airways
Deal found 3/15$816
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Tue 9/159:30 am
BOS
-
BKK
2 stops32h 05m
United Airlines
Wed 9/307:00 am
BKK
-
BOS
3 stops27h 54m
United Airlines
Deal found 3/15$817
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:40 pm
BOS
-
KUL
1 stop39h 15m
Etihad Airways
Thu 4/309:55 pm
KUL
-
BOS
1 stop28h 45m
Etihad Airways
Deal found 3/20$818
This Etihad Airways deal was found by Cheapflights users on 3/17. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:25 pm
BOS
-
BKK
1 stop27h 05m
Etihad Airways
Mon 4/203:05 pm
BKK
-
BOS
1 stop34h 35m
Etihad Airways
Deal found 3/17$818
This Gotogate deal was found by Cheapflights users on 3/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:25 pm
BOS
-
KUL
1 stop39h 20m
Etihad Airways
Tue 9/299:50 am
KUL
-
BOS
1 stop40h 50m
Etihad Airways
Deal found 3/18$819

Find flight deals from Boston to Southeast Asia

Keep the following information in mind while searching for Boston to Southeast Asia flight deals. Data was last updated March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(eDestinos)

One-way from

$371
(Trip.com)

Popular in

June

Cheapest in

August

Average price

$985
Provider with most accurate pricing for Boston Logan Intl-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Manila Ninoy Aquino Intl flights.
Search Deals
From Boston Logan Intl to Southeast Asia
Search Deals
One-way flight from Boston Logan Intl to Southeast Asia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($212 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 March 20, 2026.
Use the filters below to find and compare flights from Boston to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 4/9

4:25 pm-7:45 pm

1 stop39h 20m

Kuala Lumpur Intl

Tue 4/28

9:50 am-2:40 pm

1 stop40h 50m

$832
Quickest round-trip

BostonBangkok

BOS - BKK

BOSBKK

Boston Logan Intl

Thu 4/9

4:25 pm-11:50 pm

1 stop20h 25m

Bangkok Suvarnabhumi

Thu 4/23

3:15 am-2:40 pm

1 stop22h 25m

$836

BostonBangkok

BOS - BKK

BOSBKK

Boston Logan Intl

Thu 5/7

4:25 pm-11:50 pm

1 stop20h 25m

Bangkok Suvarnabhumi

Tue 5/26

3:15 am-2:40 pm

1 stop22h 25m

$836

BostonBangkok

BOS - BKK

BOSBKK

Boston Logan Intl

Mon 8/31

4:25 pm-11:50 pm

1 stop20h 25m

Bangkok Suvarnabhumi

Wed 9/30

5:50 pm-2:40 pm

2 stops55h 50m

$838

BostonPhuket City

BOS - HKT

BOSHKT

Boston Logan Intl

Thu 4/9

4:25 pm-11:55 pm

1 stop20h 30m

Phuket City

Wed 4/15

3:20 am-2:40 pm

1 stop22h 20m

$861

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Thu 9/10

7:35 am-10:15 pm

2 stops27h 40m

Hanoi Noibai

Mon 9/14

11:35 pm-11:25 pm

2 stops34h 50m

$869

BostonHo Chi Minh City

BOS - SGN

BOSSGN

Boston Logan Intl

Wed 9/9

5:45 am-9:55 pm

2 stops29h 10m

Ho Chi Minh City

Sun 9/13

11:15 pm-11:54 pm

2 stops35h 39m

$881

BostonHo Chi Minh City

BOS - SGN

BOSSGN

Boston Logan Intl

Tue 9/1

5:45 am-10:05 pm

3 stops29h 20m

Ho Chi Minh City

Wed 10/28

7:30 am-9:42 pm

2 stops25h 12m

$883

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 5/14

7:35 am-1:35 pm

2 stops42h 00m

Kuala Lumpur Intl

Thu 9/10

2:15 pm-9:55 pm

2 stops43h 40m

$885

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Wed 9/9

9:30 am-6:00 am

2 stops32h 30m

Kuala Lumpur Intl

Tue 9/29

7:15 am-11:54 pm

3 stops28h 39m

$886

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Boston to Southeast Asia

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

What is the cheapest month to book a flight from Boston to Southeast Asia?

Currently, July is the cheapest month in which you can book a flight from Boston to Southeast Asia (average of $617). Flying from Boston 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 March 20, 2026.
Read through reviews of airlines operating flights from Boston to Southeast Asia, such as Korean Air,Japan Airlines, andDelta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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
1,205 reviews
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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
1,741 reviews
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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
7.9
Good
8,303 reviews
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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.
Cathay Pacific
7.6
Good
1,217 reviews
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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
9,444 reviews
Korean Air
8.4
Very good
1,205 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Boarding

8.5

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 Boston 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 Boston to Southeast Asia?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Southeast Asia.

  • How long is the flight from Boston to Southeast Asia?

    Airlines like Etihad Airways, Turkish Airlines, and United Airlines fly from Boston to Southeast Asia in about 22h 20m. The time it takes to get you to your destination can typically vary by up to 5h 40m. Boston and Southeast Asia are separated by a distance of 9281 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to Southeast Asia one-way?

    One-way options have recently been found by users for as low as $283 on United Airlines. Other airlines that offer cheap prices include ANA from $292 and Korean Air from $348 one-way.

  • What are the most popular routes from Boston to Southeast Asia?

    Most travelers choose Boston Logan Intl - Bangkok Suvarnabhumi, Boston Logan Intl - Ho Chi Minh City or Boston Logan Intl - Manila Ninoy Aquino Intl when deciding on the best route from Boston to Southeast Asia.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Boston to Southeast Asia (average of $617). Flying from Boston 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Boston to Southeast Asia

Discover the top 10 airlines that operate flights from Boston 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 March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$648Average$1,287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$717Average$1,040FlexibilityNo cancel feeOn-time69%
ANACheapest$721Average$990FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$723Average$1,029FlexibilityNo cancel feeOn-time72%
Hainan AirlinesCheapest$731Average$779FlexibilityNo cancel feeOn-time61%
Korean AirCheapest$734Average$1,101FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$743Average$1,125FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$748Average$990FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$757Average$954FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$761Average$1,042FlexibilityNo cancel feeOn-time75%

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