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Southeast Asia

$453+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BKK
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
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 June 26, 2026.

This oojo deal was found by Cheapflights users on 6/24. 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 8/204:25 pm
BOS
-
KUL
1 stop28h 00m
Etihad Airways
Sat 9/199:50 am
KUL
-
BOS
1 stop40h 50m
Etihad Airways
Deal found 6/24$954
This BusinessClass deal was found by Cheapflights users on 6/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am
BOS
-
HKT
2 stops29h 20m
SAUDIA
Wed 10/283:15 pm
HKT
-
BOS
2 stops35h 07m
SAUDIA
Deal found 6/22$958
This Korean Air deal was found by Cheapflights users on 6/23. 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 9/512:55 pm
BOS
-
KUL
1 stop44h 55m
Korean Air
Sun 9/1311:20 pm
KUL
-
BOS
1 stop22h 50m
Korean Air
Deal found 6/23$958
This SAUDIA deal was found by Cheapflights users on 6/24. 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 SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am
BOS
-
HKT
2 stops43h 45m
SAUDIA
Wed 11/113:15 pm
HKT
-
BOS
2 stops34h 32m
SAUDIA
Deal found 6/24$960
This Korean Air deal was found by Cheapflights users on 6/25. 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 10/2812:00 pm
BOS
-
HAN
1 stop22h 45m
Korean Air
Tue 11/1011:05 pm
HAN
-
BOS
1 stop21h 35m
Korean Air
Deal found 6/25$965
This Korean Air deal was found by Cheapflights users on 6/25. 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.
Thu 10/159:55 am
BOS
-
HAN
2 stops24h 40m
Korean Air
Mon 10/2611:05 pm
HAN
-
BOS
1 stop21h 35m
Korean Air
Deal found 6/25$971
This FlightHub deal was found by Cheapflights users on 6/25. 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 9/99:00 am
BOS
-
KUL
2 stops33h 00m
ANA
Tue 9/292:15 pm
KUL
-
BOS
2 stops35h 52m
ANA
Deal found 6/25$978
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/99:30 am
BOS
-
KUL
2 stops32h 30m
United Airlines
Tue 9/297:15 am
KUL
-
BOS
3 stops28h 44m
United Airlines
Deal found 6/25$980
This Korean Air deal was found by Cheapflights users on 6/25. 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 10/288:45 pm
BOS
-
HAN
2 stops38h 00m
Korean Air
Sun 11/1511:05 pm
HAN
-
BOS
2 stops26h 42m
Korean Air
Deal found 6/25$982
This SAUDIA deal was found by Cheapflights users on 6/23. 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 SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am
BOS
-
HKT
2 stops43h 45m
SAUDIA
Wed 11/253:15 pm
HKT
-
BOS
2 stops34h 32m
SAUDIA
Deal found 6/23$984
This Etihad Airways deal was found by Cheapflights users on 6/24. 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 10/254:40 pm
BOS
-
KUL
1 stop38h 55m
Etihad Airways
Wed 10/289:35 am
KUL
-
BOS
1 stop41h 35m
Etihad Airways
Deal found 6/24$986
This SAUDIA deal was found by Cheapflights users on 6/23. 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 SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:00 am
BOS
-
HKT
2 stops43h 45m
SAUDIA
Fri 12/411:55 pm
HKT
-
BOS
2 stops49h 52m
SAUDIA
Deal found 6/23$992

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 June 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$954
(oojo)

One-way from

$453
(Orbitz)

Popular in

December

Cheapest in

September

Average price

$1,438
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. 4% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 26, 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

BostonPhuket City

BOS - HKT

BOSHKT

Boston Logan Intl

Fri 9/11

1:32 pm-2:20 pm

2 stops37h 48m

Phuket City

Fri 9/18

3:50 pm-2:42 pm

2 stops33h 52m

$1,007

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 8/20

12:55 pm-9:50 pm

1 stop44h 55m

Kuala Lumpur Intl

Sat 9/19

11:20 pm-7:08 pm

2 stops31h 48m

$1,007

BostonBangkok

BOS - BKK

BOSBKK

Boston Logan Intl

Sun 9/13

6:00 pm-4:35 am

2 stops47h 35m

Bangkok Suvarnabhumi

Sat 10/3

7:00 am-11:59 pm

3 stops27h 59m

$1,051

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Thu 9/10

12:55 pm-10:35 am

1 stop34h 40m

Hanoi Noibai

Mon 9/14

12:05 pm-10:10 am

1 stop33h 05m

$1,051

BostonPhuket City

BOS - HKT

BOSHKT

Boston Logan Intl

Fri 9/11

9:20 am-10:10 pm

2 stops49h 50m

Phuket City

Fri 9/18

11:25 pm-10:10 am

1 stop21h 45m

$1,055

BostonPhuket City

BOS - HKT

BOSHKT

Boston Logan Intl

Tue 9/15

9:20 am-10:10 pm

2 stops49h 50m

Phuket City

Mon 10/12

11:25 pm-3:22 pm

2 stops26h 57m

$1,065

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Tue 7/7

8:00 am-10:15 pm

2 stops27h 15m

Hanoi Noibai

Tue 7/21

11:35 pm-9:21 pm

2 stops32h 46m

$1,073

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Mon 8/3

9:05 am-9:35 pm

2 stops25h 30m

Hanoi Noibai

Thu 10/29

12:20 pm-11:19 am

2 stops33h 59m

$1,073
Quickest round-trip

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Wed 9/16

1:45 am-4:40 pm

1 stop26h 55m

Kuala Lumpur Intl

Mon 9/21

1:10 pm-11:05 pm

1 stop21h 55m

$1,077

BostonBangkok

BOS - BKK

BOSBKK

Boston Logan Intl

Wed 8/5

6:26 pm-9:35 am

2 stops28h 09m

Bangkok Suvarnabhumi

Thu 8/20

7:00 am-8:14 am

2 stops36h 14m

$1,090

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

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, September is the cheapest month in which you can book a flight from Boston to Southeast Asia (average of $880). Flying from Boston to Southeast Asia in December is currently the most expensive (average of $1,455). 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.

How far ahead should I book a flight from Boston to Southeast Asia?

The price you pay for your flight from Boston to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 June 26, 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
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
1,218 reviews
Korean Air
8.4
Very good
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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.
Japan Airlines
8.3
Very good
1,851 reviews
Korean Air
8.4
Very good
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
7.8
Good
8,453 reviews
Korean Air
8.4
Very good
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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.
Cathay Pacific
7.6
Good
1,394 reviews
Korean Air
8.4
Very good
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
9,893 reviews
Korean Air
8.4
Very good
1,218 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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 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 SAUDIA, Korean Air, and United Airlines fly from Boston to Southeast Asia in about 37h 48m. The time it takes to get you to your destination can typically vary by up to 9h 47m. Boston and Southeast Asia are separated by a distance of 8878 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 $182 on Philippine Airlines. Other airlines that offer cheap prices include United Airlines from $283 and ANA from $292 one-way.

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

    Most travelers choose Boston Logan Intl - Bangkok Suvarnabhumi, Boston Logan Intl - Bangkok Don Mueang Intl or Boston Logan Intl - Ho Chi Minh City 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, September is the cheapest month in which you can book a flight from Boston to Southeast Asia (average of $880). Flying from Boston to Southeast Asia in December is currently the most expensive (average of $1,455). 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 June 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$361Average$806FlexibilityNo cancel feeOn-time60%
Cathay PacificCheapest$706Average$1,042FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$717Average$1,061FlexibilityNo cancel feeOn-time69%
ANACheapest$721Average$1,147FlexibilityNo cancel feeOn-time80%
Hainan AirlinesCheapest$731Average$779FlexibilityNo cancel feeOn-time61%
Korean AirCheapest$733Average$1,139FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$740Average$910FlexibilityNo cancel feeOn-time77%
Singapore AirlinesCheapest$748Average$1,094FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$758Average$1,033FlexibilityNo cancel feeOn-time75%
DeltaCheapest$786Average$1,431FlexibilityNo cancel feeOn-timeN/A

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