$517 Find Cheap Flights from Boston to Kuala Lumpur - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Kuala Lumpur departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Kuala Lumpur.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Kuala Lumpur.
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Everything you should know

Cheapest round-trip
$948
Typical prices: $1,914-$919
Cathay Pacific
พ. 10/14พ. 10/28
BOS - KUL • 1 stop
Cheapest one-way
$517
Typical prices: $549-$590
Korean Air
พ. 9/16
BOS - KUL • 1 stop
Top airlines
Cheapest • from $948 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 34% compared to booking last minute.
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Flight Deals

Cheap Flights from Boston to Kuala Lumpur (BOS-KUL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Kuala Lumpur that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Kuala Lumpur

พ., ต.ค. 14 - พ., ต.ค. 28
Cathay Pacific Logo
1:45 am - 1:30 am
BOS
-
KUL
35h 45m
1 stop
Cathay Pacific Logo
1:35 pm - 11:00 pm
KUL
-
BOS
21h 25m
1 stop
$948Cathay Pacific
พฤ., ต.ค. 15 - ศ., ต.ค. 30
Etihad Airways Logo
4:25 pm - 8:25 am
BOS
-
KUL
28h 00m
1 stop
Etihad Airways Logo
9:40 pm - 3:10 pm
KUL
-
BOS
29h 30m
1 stop
$980Etihad Airways
ส., ก.ย. 5 - อา., ก.ย. 13
Korean Air Logo
7:30 pm - 9:50 pm
BOS
-
KUL
38h 20m
2 stops
Korean Air Logo
11:20 pm - 10:10 am
KUL
-
BOS
22h 50m
1 stop
$985Korean Air
พฤ., ก.ย. 10 - จ., ก.ย. 14
Korean Air Logo
12:55 pm - 9:50 pm
BOS
-
KUL
44h 55m
1 stop
Korean Air Logo
11:20 pm - 10:10 am
KUL
-
BOS
22h 50m
1 stop
$997Korean Air
พ., ต.ค. 28 - พ., พ.ย. 4
Korean Air Logo
8:45 pm - 10:25 pm
BOS
-
KUL
37h 40m
2 stops
Korean Air Logo
11:55 pm - 8:40 am
KUL
-
BOS
21h 45m
1 stop
$1,002Korean Air
พฤ., ส.ค. 20 - ส., ก.ย. 19
Korean Air Logo
12:55 pm - 9:50 pm
BOS
-
KUL
44h 55m
1 stop
Korean Air Logo
11:20 pm - 7:24 am
KUL
-
BOS
44h 04m
2 stops
$1,008Korean Air
พ., ต.ค. 28 - พ., พ.ย. 4
Korean Air Logo
8:45 pm - 10:25 pm
BOS
-
KUL
37h 40m
2 stops
Korean Air Logo
11:55 pm - 1:47 pm
KUL
-
BOS
26h 52m
2 stops
$1,013Korean Air
พฤ., พ.ย. 19 - ส., พ.ย. 28
Etihad Airways Logo
3:40 pm - 8:05 am
BOS
-
KUL
27h 25m
1 stop
Etihad Airways Logo
9:35 am - 2:10 pm
KUL
-
BOS
41h 35m
1 stop
$1,020Etihad Airways
พ., ต.ค. 28 - พ., พ.ย. 4
Turkish Airlines Logo
9:00 pm - 8:30 am
BOS
-
KUL
23h 30m
1 stop
Turkish Airlines Logo
11:45 pm - 7:05 pm
KUL
-
BOS
32h 20m
1 stop
$1,025Turkish Airlines
พฤ., ส.ค. 20 - ส., ก.ย. 19
Etihad Airways Logo
4:25 pm - 8:25 am
BOS
-
KUL
28h 00m
1 stop
Etihad Airways Logo
9:50 am - 2:40 pm
KUL
-
BOS
40h 50m
1 stop
$1,039Etihad Airways
Booking Insights

KAYAK's insights & trends for Boston to Kuala Lumpur flights

Get data-powered insights and trends into flights from Boston to Kuala Lumpur to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Kuala Lumpur?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Kuala Lumpur departing in October.

What is the cheapest month to fly from Boston to Kuala Lumpur?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Kuala Lumpur, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Kuala Lumpur is July, where tickets cost $533 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $1,073 and $860 respectively.

How far in advance should I book a flight from Boston to Kuala Lumpur?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Kuala Lumpur, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Kuala Lumpur, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Cheapest flight$517
Flight from Boston to Kuala Lumpur Airport

When to book flights from Boston to Kuala Lumpur

Are your dates flexible? Find out the best times to travel from Boston to Kuala Lumpur based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Kuala Lumpur

  • What is the cheapest flight from Boston to Kuala Lumpur?

    In the last 5 days, the lowest price for a flight from Boston to Kuala Lumpur was $517 for a one-way ticket and $948 for a round-trip.

  • Do I need a passport to fly between Boston and Kuala Lumpur?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Kuala Lumpur.

  • Which airports will I be using when flying from Boston to Kuala Lumpur?

    Boston is served by only 1 airport and there are 2 airports in Kuala Lumpur. You will leave Boston from Boston Logan Intl and you will be arriving in Kuala Lumpur at one of these airports: Kuala Lumpur Intl or Kuala Lumpur Subang.

  • Which aircraft models fly most regularly from Boston to Kuala Lumpur?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Kuala Lumpur?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Boston and Kuala Lumpur, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Boston to Kuala Lumpur?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Kuala Lumpur.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Kuala Lumpur?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kuala Lumpur from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Kuala Lumpur?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kuala Lumpur with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Kuala Lumpur?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kuala Lumpur from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Boston to Kuala Lumpur

 
See real verified KAYAK customer reviews for airlines flying from Boston to Kuala Lumpur. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Kuala Lumpur? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1382 reviews
7.3Food
8.1Crew
7.9Boarding
7.8Entertainment
7.6Comfort
Airline reviews

The plane was dirty, the seats were torn and broken, the service was the most terrible ever, the bathroom dirty, they will not even serve water you had to request it, the meals were terrible, overall less than Zero, I will never fly Cathay Pacific again.

2.0 MediocreFadi, Jun 2026
DFW - HKG
Read more Cathay Pacific reviews

The plane was dirty, the seats were torn and broken, the service was the most terrible ever, the bathroom dirty, they will not even serve water you had to request it, the meals were terrible, overall less than Zero, I will never fly Cathay Pacific again.

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

Was not able to board flight because boarding pass name did not match passport name and no one caught it.

Had a bad experience with crew member coming back Hong Kong to la the person next to me one of the passenger have taken video and picture of crew member the person that served meal young kid late 20' s 6 5'10 had attitude at his peak anything I asked for I don't know if it was bad day or racial I felt humiliated as people could see difference towards me I no problem with Cathy and my whole family never had one was very disappointed

Frequently flyer number should and could have been put on at the time of booking as I gave the number when booking.

Very attentive crews Flight was very smooth and safe Only little disappointment was the slight delay of departure (~30 minutes ) which rarely happen with CX flights

Not at all satisfactory. I had stomach upsets after taking food. Quality of Asian vegetarian meal was awful. Further there was no snacks/ fruits/ biscuits available as in between snacks.. only peanuts and pitzels.. except courteous staff rest of my experience was far from satisfactory

Staff was very courteous. Plane was clean and quite spacious even in the last rows. Veg food could have been better.

Later on, when there was no more bottled water, the water we received had a strong chlorine/disinfectant odor. On my flight from Hong Kong to Los Angeles, there was a male flight attendant who had a mean attitude throughout the whole trip, and he was very impatient during meal service “Furthermore, we purchased a Hong Kong SIM card as part of our flight package, but we received no instructions—neither by email nor SMS—on how to activate or use it. Consequently, we were unable to use the service at all. We request a full refund, as this appears to be a deceptive charge

The crew and the food were excellent. The plane was kept quite clean.

Entertainment system is okay, flight attendants were ok. Leg space very narrow, I couldn’t get what I wanted to eat, dinner nor breakfast.

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

On time, great food, good drink selection! Only down was alcohol-free lounge. Lufthansa had a much better offering!

Be honest of what you sell: This was sold as Business Class on all three legs, while the JetBlue plane didn't even have business class seats, and wanted $164 for extra legroom seats.

Seat assignments for family traveling with 2 children. Loud crowd during sleep time

It was crowded… the bathrooms dirty and smelly. The seats have been made even smaller.

delayed to take off from detroit by 3 hours lost baggage in istanbul and now in venice without baggage

Seats were very tight with poor legroom - and I am average height. During the 12 hour flight, tiny paper cups of drinks we're only offered during the super and breakfast services, with the crew nowhere to be seen in between. One of the bathrooms was out of order, leading to long lines waiting to use the remaining two available to the economy class passengers.

short flight but we still got a very nice lunch and the crew did an excellent job in taking care of us

For that price on Business class, I expected to have the pod seats. These were configured as 2/3/2 and my seat mate talked half the flight with a friend across the isle, loudly. Very uncouth.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

Really good food and service. Qatar Airways is again and again provided an exceptional experience.

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

i have book the flight with baggage. and i have paid $800.00 for the baggage. when i contacted to JUSTFLY Costumer Service they told me that my baggage was included in the booking. then why i have to pay. i am going to file a complain against it. $800.00 is not at all small amount

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

Very disappointed to not have lounge access The shorter flight seats were uncomfortable

Seats were very comfortable and the staff too was very friendly.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Good one but just notice that you have to ask several time to get water or coffee .

Good service. But on flight to Kochi no entertainment except in app. And no working outlets to charge phone.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

Everything you need to know for your flight from Boston to Kuala Lumpur

Information on your arrival and departure airports