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Kuala Lumpur Intl

$419+ Cheap flights from Boston (BOS) to Kuala Lumpur Intl (KUL)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KUL
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Boston to Kuala Lumpur Intl

Cheapest flights from Boston to Kuala Lumpur Intl
Explore the most affordable flight options available from Boston to Kuala Lumpur Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This ScholarTrip 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:45 am
BOS
-
KUL
1 stop26h 55m
Cathay Pacific
Sun 5/172:45 am
KUL
-
BOS
1 stop32h 20m
Cathay Pacific
Deal found 2/3$746
This United Airlines deal was found by Cheapflights users on 2/4. 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 3/38:00 am
BOS
-
KUL
2 stops40h 55m
United Airlines
Tue 3/108:30 pm
KUL
-
BOS
2 stops40h 19m
United Airlines
Deal found 2/4$772
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
BOS
-
KUL
2 stops26h 47m
ANA
Thu 10/17:15 am
KUL
-
BOS
2 stops26h 27m
ANA
Deal found 2/3$773
This United Airlines deal was found by Cheapflights users on 2/4. 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.
Mon 5/46:01 pm
BOS
-
KUL
2 stops28h 14m
United Airlines
Mon 5/182:15 pm
KUL
-
BOS
2 stops53h 09m
United Airlines
Deal found 2/4$774
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.
Mon 3/231:45 pm
BOS
-
KUL
2 stops32h 35m
United Airlines
Mon 4/138:40 pm
KUL
-
BOS
2 stops36h 48m
United Airlines
Deal found 2/3$775
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.
Mon 4/66:01 pm
BOS
-
KUL
2 stops28h 14m
United Airlines
Mon 5/184:35 pm
KUL
-
BOS
2 stops27h 48m
United Airlines
Deal found 2/3$777
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:55 pm
BOS
-
KUL
1 stop44h 55m
Korean Air
Tue 6/911:10 pm
KUL
-
BOS
1 stop23h 10m
Korean Air
Deal found 2/1$779
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:15 am
BOS
-
KUL
2 stops27h 40m
ANA
Mon 5/182:15 pm
KUL
-
BOS
2 stops40h 56m
ANA
Deal found 2/3$783
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:00 pm
BOS
-
KUL
1 stop21h 15m
Turkish Airlines
Thu 4/305:30 am
KUL
-
BOS
1 stop26h 25m
Turkish Airlines
Deal found 2/3$784
This ScholarTrip 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/312:30 am
BOS
-
KUL
1 stop27h 20m
Cathay Pacific
Wed 3/45:50 pm
KUL
-
BOS
1 stop41h 10m
Cathay Pacific
Deal found 2/1$785
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.
Thu 10/16:00 am
BOS
-
KUL
2 stops29h 55m
United Airlines
Thu 10/87:15 am
KUL
-
BOS
2 stops36h 03m
United Airlines
Deal found 2/3$786
This Gurufare deal was found by Cheapflights users on 2/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:15 pm
BOS
-
KUL
2 stops53h 20m
Multiple Airlines
Mon 5/254:35 pm
KUL
-
BOS
2 stops35h 19m
Multiple Airlines
Deal found 2/4$787

Find flight deals from Boston to Kuala Lumpur Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kuala Lumpur Intl (KUL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$746
(ScholarTrip)

One-way from

$419
(SmartFares)

Popular in

December

Cheapest in

September

Average price

$972
Provider with most accurate pricing for Boston Logan Intl-Kuala Lumpur Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Kuala Lumpur Intl flights.
Search Deals
From Boston Logan Intl to Kuala Lumpur Intl
Search Deals
One-way flight from Boston Logan Intl to Kuala Lumpur Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Kuala Lumpur Intl 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 4, 2026.
Use the filters below to find and compare flights from Boston to Kuala Lumpur Intl Airport that are best for you.

Fly from

Boston

Fly to

Kuala Lumpur Intl

Route

Depart

Return

Price

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Wed 4/1

7:30 am-1:35 pm

2 stops42h 05m

Kuala Lumpur Intl

Mon 6/8

2:15 pm-9:57 pm

2 stops43h 42m

$798

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Mon 3/30

6:01 pm-1:35 pm

2 stops31h 34m

Kuala Lumpur Intl

Thu 6/11

7:15 am-9:57 pm

2 stops26h 42m

$801

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 3/31

11:10 am-1:35 pm

2 stops38h 25m

Kuala Lumpur Intl

Thu 6/11

7:15 am-9:57 pm

2 stops26h 42m

$801

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Thu 4/30

1:55 pm-1:35 pm

2 stops35h 40m

Kuala Lumpur Intl

Sun 5/10

8:40 pm-9:27 pm

2 stops36h 47m

$823

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Sun 3/29

6:01 pm-1:35 pm

2 stops31h 34m

Kuala Lumpur Intl

Thu 4/30

4:35 pm-8:23 am

2 stops27h 48m

$824

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Sun 3/1

1:50 pm-10:20 am

2 stops31h 30m

Kuala Lumpur Intl

Tue 3/31

8:40 pm-9:28 pm

2 stops36h 48m

$824

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 4/7

6:01 pm-1:35 pm

2 stops31h 34m

Kuala Lumpur Intl

Mon 5/4

2:15 pm-7:24 am

2 stops29h 09m

$834

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 3/31

11:10 am-1:35 pm

2 stops38h 25m

Kuala Lumpur Intl

Tue 4/7

8:40 pm-9:28 pm

2 stops36h 48m

$836

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Tue 3/31

6:01 pm-1:35 pm

2 stops31h 34m

Kuala Lumpur Intl

Wed 4/29

4:35 pm-8:24 am

2 stops27h 49m

$895

BostonKuala Lumpur

BOS - KUL

BOSKUL

Boston Logan Intl

Fri 5/1

4:25 pm-8:25 am

1 stop28h 00m

Kuala Lumpur Intl

Sun 5/31

9:50 am-2:40 pm

1 stop40h 50m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 18 results
1
2

Compare providers for flights from Boston to Kuala Lumpur Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kuala Lumpur Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Kuala Lumpur Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Kuala Lumpur Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Kuala Lumpur Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kuala Lumpur Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Kuala Lumpur Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Kuala Lumpur Intl

Have a flexible travel schedule? Discover the best time to fly to Kuala Lumpur Intl 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 Kuala Lumpur Intl Airport

How far ahead should I book a flight from Boston to Kuala Lumpur Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Kuala Lumpur Intl. Price data was last updated on January 30, 2026.

The price you pay for your flight from Boston to Kuala Lumpur Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Kuala Lumpur Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Boston to Kuala Lumpur Intl Airport (average of $723). Flying from Boston to Kuala Lumpur Intl Airport in December is currently the most expensive (average of $956). 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 Kuala Lumpur Intl

Get insights into the airlines that provide service to Kuala Lumpur Intl. 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 Kuala Lumpur Intl. Reviews last updated February 4, 2026.
Get a feel of what it's like to fly with Cathay Pacific, Qatar Airways, and United Airlines from Boston to Kuala Lumpur Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,159 reviews
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Qatar Airways
7.4
Good
3,731 reviews
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
United Airlines
7.4
Good
9,236 reviews
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Etihad Airways
7.3
Good
1,380 reviews
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Turkish Airlines
7.3
Good
4,210 reviews
Cathay Pacific
7.6
Good
1,159 reviews

Crew

8.1

Entertainment

7.8

Food

7.3

Overall

7.6

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Related info for your journey

Find useful and relevant information for your journey from Boston to Kuala Lumpur Intl. 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 Kuala Lumpur Intl?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Kuala Lumpur Intl. You should not have trouble finding flights to Kuala Lumpur Intl from Logan Intl; the airport handles an average of 0 outbound flights to Kuala Lumpur Intl per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Boston airport to Kuala Lumpur Intl. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • How long is the flight from Boston to Kuala Lumpur Intl Airport?

    For as low as $798, United Airlines can have you in Kuala Lumpur Intl Airport from Boston in 42h 05m. The distance between Boston and Kuala Lumpur Intl Airport is about 9281 mi.

  • What are the cheapest airlines flying from Boston to Kuala Lumpur Intl Airport round-trip?

    Cathay Pacific, at $723, was found to be the cheapest airline from Boston to Kuala Lumpur Intl Airport.Alternate airlines to your destination round-trip include Delta and ANA. Cathay Pacific is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Kuala Lumpur Intl Airport one-way?

    $379 is the cheapest one-way deal found within the past few days, from Cathay Pacific. You may also be able to find cheap deals on Etihad Airways and JetBlue, with prices starting from $379 and $477, respectively.

  • Can I find deals for flights from Boston to Kuala Lumpur Intl that include hotel bookings?

    Yes. In addition to deals on Boston to Kuala Lumpur Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Kuala Lumpur Intl?

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

  • Can I find deals for business class flights from Boston to Kuala Lumpur Intl?

    Yes. Cheapflights offers flight deals from Boston to Kuala Lumpur Intl 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 Kuala Lumpur Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Boston to Kuala Lumpur Intl Airport (average of $723). Flying from Boston to Kuala Lumpur Intl Airport in December is currently the most expensive (average of $956). 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

Traveling to a place near Kuala Lumpur Intl Airport?

Book flights to Kuala Lumpur Intl Airport if you plan to visit one of these locations
Genting Highlands
Sepang
Petaling Jaya
Shah Alam
Port Dickson
Putrajaya
Puchong

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Kuala Lumpur Intl

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to Kuala Lumpur Intl flights
Boston to Subang flights

Top 8 airlines flying from Boston to Kuala Lumpur Intl

Discover the top 8 airlines that operate flights from Boston to Kuala Lumpur Intl. 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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$723Average$970FlexibilityNo cancel feeOn-time72%
DeltaCheapest$764Average$1,317FlexibilityNo cancel feeOn-timeN/A
ANACheapest$771Average$903FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$775Average$1,004FlexibilityNo cancel feeOn-time69%
EmiratesCheapest$796Average$1,859FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$823Average$1,030FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$868Average$1,015FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$903Average$993FlexibilityNo cancel feeOn-time68%

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