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Southeast Asia

$353+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BKK
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find 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 October 27, 2025.

This lol.travel deal was found by Cheapflights users on 10/25. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:00 amBOS - HAN
1 stop36h 10mKorean Air
Sun 11/2312:20 pmHAN - BOS
1 stop32h 20mKorean Air
Deal found 10/25$720
This Korean Air deal was found by Cheapflights users on 10/26. 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 11/1911:00 amBOS - HAN
1 stop22h 45mKorean Air
Wed 11/2611:05 pmHAN - BOS
1 stop21h 35mKorean Air
Deal found 10/26$752
This oojo deal was found by Cheapflights users on 10/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:30 amBOS - KUL
1 stop23h 05mCathay Pacific
Mon 11/38:15 amKUL - BOS
1 stop26h 45mCathay Pacific
Deal found 10/25$755
This oojo deal was found by Cheapflights users on 10/26. 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 11/1112:30 amBOS - HAN
1 stop30h 00mCathay Pacific
Thu 11/2711:05 amHAN - BOS
1 stop22h 55mCathay Pacific
Deal found 10/26$760
This Booking.com deal was found by Cheapflights users on 10/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:30 amBOS - KUL
1 stop23h 05mCathay Pacific
Tue 11/115:50 pmKUL - BOS
1 stop41h 10mCathay Pacific
Deal found 10/25$763
This Delta deal was found by Cheapflights users on 10/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:22 pmBOS - KUL
2 stops40h 03mDelta
Mon 11/311:55 pmKUL - BOS
2 stops38h 18mDelta
Deal found 10/25$764
This lol.travel deal was found by Cheapflights users on 10/25. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/912:30 amBOS - HAN
1 stop30h 00mCathay Pacific
Sun 11/2311:05 amHAN - BOS
1 stop22h 55mCathay Pacific
Deal found 10/25$780
This Korean Air deal was found by Cheapflights users on 10/26. 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 11/1911:00 amBOS - HAN
1 stop22h 45mKorean Air
Tue 12/211:05 pmHAN - BOS
1 stop21h 35mKorean Air
Deal found 10/26$782
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:40 pmBOS - BKK
2 stops40h 45mHainan Airlines
Thu 12/41:05 amBKK - BOS
1 stop27h 15mHainan Airlines
Deal found 10/25$789
This Korean Air deal was found by Cheapflights users on 10/25. 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.
Sun 11/169:04 pmBOS - BKK
2 stops39h 51mKorean Air
Tue 12/212:55 amBKK - BOS
2 stops33h 31mKorean Air
Deal found 10/25$790
This United Airlines deal was found by Cheapflights users on 10/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:00 amBOS - BKK
2 stops41h 25mUnited Airlines
Wed 12/104:55 pmBKK - BOS
2 stops26h 31mUnited Airlines
Deal found 10/24$791
This oojo deal was found by Cheapflights users on 10/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:40 pmBOS - BKK
1 stop19h 40mEtihad Airways
Mon 11/242:55 amBKK - BOS
1 stop23h 15mEtihad Airways
Deal found 10/25$792

Cheap 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 October 27, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$720
(lol.travel)

One-way from

$353
(eDestinos)

Popular in

June

Cheapest in

September

Average price

$964
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. 19% potential increase in price ($263 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 27, 2025.
Use the filters below to find and compare flights from Boston to Southeast Asia that are best for you.

Fly from

Boston

Fly to

Southeast Asia

Route

Depart

Return

Price

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Mon 3/23

12:00 pm-9:45 pm

1 stop22h 45m

Hanoi Noibai

Wed 4/1

11:10 pm-12:59 am

2 stops36h 49m

$769

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 1/13

6:00 am-6:45 am

2 stops35h 45m

Kuala Lumpur Intl

Mon 1/19

8:30 pm-7:51 pm

2 stops36h 21m

$769

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Mon 1/12

9:30 am-6:45 am

2 stops32h 15m

Kuala Lumpur Intl

Tue 1/20

8:30 pm-7:51 pm

2 stops36h 21m

$769

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 1/15

5:45 am-6:45 am

3 stops36h 00m

Kuala Lumpur Intl

Wed 1/21

5:00 pm-8:10 am

2 stops28h 10m

$769

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Mon 1/12

6:00 am-6:45 am

2 stops35h 45m

Kuala Lumpur Intl

Sun 1/25

2:15 pm-12:46 pm

3 stops35h 31m

$770

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 4/21

6:00 am-1:50 pm

2 stops43h 50m

Kuala Lumpur Intl

Tue 4/28

2:15 pm-7:18 am

2 stops29h 03m

$772

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 2/5

7:55 am-10:20 am

2 stops37h 25m

Kuala Lumpur Intl

Wed 2/25

8:05 am-9:31 pm

2 stops26h 26m

$772

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Wed 11/19

11:00 am-11:10 am

1 stop36h 10m

Hanoi Noibai

Tue 12/2

11:05 pm-10:26 pm

2 stops35h 21m

$783

BostonHanoi

BOS - HAN

BOSHAN

Boston Logan Intl

Wed 2/18

12:30 am-10:05 am

1 stop21h 35m

Hanoi Noibai

Sun 3/8

7:30 pm-11:00 pm

1 stop38h 30m

$787

BostonManila

BOS - MNL

BOSMNL

Boston Logan Intl

Sun 3/29

9:55 am-10:05 pm

2 stops24h 10m

Manila Ninoy Aquino Intl

Wed 4/8

1:10 am-10:20 am

1 stop21h 10m

$792

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 60 results
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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 $494). Flying from Boston to Southeast Asia in June is currently the most expensive (average of $975). 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 BOS to YJX?

Find hourly flight availability from Boston 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 October 27, 2025.

It’s optimal to fly from Boston to Southeast Asia in the evening. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Boston to Southeast Asia?

Use this chart to determine the cheapest time to fly round-trip from Boston to Southeast Asia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Southeast Asia flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 27, 2025.
Read through reviews of airlines operating flights from Boston to Southeast Asia, such as Korean Air, Japan Airlines, and Cathay Pacific. 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
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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
1,153 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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
1,593 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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
1,040 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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.
Qatar Airways
7.4
Good
3,658 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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
8,995 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Overall

8.4

Crew

8.7

Entertainment

8.2

Comfort

8.3

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 Korean Air, United Airlines, and Cathay Pacific fly from Boston to Southeast Asia in about 21h 35m. The time it takes to get you to your destination can typically vary by up to 14h 10m. Boston and Southeast Asia are separated by a distance of 8033 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 $353 on Korean Air. Other airlines that offer cheap prices include Cathay Pacific from $378 and United Airlines from $397 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, September is the cheapest month in which you can book a flight from Boston to Southeast Asia (average of $494). Flying from Boston to Southeast Asia in June is currently the most expensive (average of $975). 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 Boston to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$717Average$1,100FlexibilityNo cancel feeOn-time69%
ANACheapest$735Average$992FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$743Average$1,476FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$759Average$1,124FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$763Average$953FlexibilityNo cancel feeOn-time77%
Singapore AirlinesCheapest$764Average$1,548FlexibilityNo cancel feeOn-time81%
DeltaCheapest$772Average$1,325FlexibilityNo cancel feeOn-timeN/A
EmiratesCheapest$778Average$1,364FlexibilityNo cancel feeOn-time75%
SAUDIACheapest$794Average$1,014FlexibilityNo cancel feeOn-time86%
Philippine AirlinesCheapest$838Average$1,102FlexibilityNo cancel feeOn-time60%

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