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Kathmandu

$411+ Cheap flights from Boston (BOS) to Kathmandu (KTM)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KTM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Kathmandu Tribhuvan are usually found in February or September, booked 72 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Boston to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kathmandu (KTM). 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 June 12, 2025.

Round-trip from

$1,031
(Cathay Pacific)

One-way from

$411
(Booking.com)

Popular in

December

Cheapest in

February

Average price

$1,713
From Boston Logan Intl to Kathmandu Tribhuvan
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One-way flight from Boston Logan Intl to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 3% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Boston to Kathmandu

Cheapest flights from Boston to Kathmandu
Explore the most affordable flight options available from Boston to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Cathay Pacific deal was found by Cheapflights users on 6/10. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/61:40 amBOS - KTM
1 stop34h 20mCathay Pacific
Fri 9/1911:00 pmKTM - BOS
1 stop33h 45mCathay Pacific
Deal found 6/10$1,031
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/231:40 amBOS - KTM
2 stops46h 25mMultiple Airlines
Wed 10/82:00 pmKTM - BOS
2 stops42h 45mMultiple Airlines
Deal found 6/10$1,039
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/29:35 pmBOS - KTM
2 stops29h 40mIndiGo
Mon 7/2110:50 amKTM - BOS
2 stops42h 35mIndiGo
Deal found 6/10$1,050
This oojo deal was found by Cheapflights users on 6/11. 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 9/111:05 pmBOS - KTM
1 stop23h 10mEmirates
Fri 9/193:35 pmKTM - BOS
1 stop32h 20mEmirates
Deal found 6/11$1,166
This oojo deal was found by Cheapflights users on 6/11. 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 9/2510:00 pmBOS - KTM
1 stop33h 00mQatar Airways
Thu 10/306:45 pmKTM - BOS
1 stop29h 55mQatar Airways
Deal found 6/11$1,280

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Kathmandu 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 12, 2025.
Use the filters below to find and compare flights from Boston to Kathmandu that are best for you.

Fly from

Boston

Fly to

Kathmandu

Route

Depart

Return

Price

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sat 9/6

1:40 am-9:45 pm

1 stop34h 20m

Kathmandu Tribhuvan

Fri 9/19

11:00 pm-11:00 pm

1 stop33h 45m

$1,031

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sat 8/23

1:40 am-9:50 am

2 stops46h 25m

Kathmandu Tribhuvan

Wed 10/8

2:00 pm-11:00 pm

2 stops42h 45m

$1,039

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 7/2

9:35 pm-1:00 pm

2 stops29h 40m

Kathmandu Tribhuvan

Mon 7/21

10:50 am-7:40 pm

2 stops42h 35m

$1,050

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 9/1

11:05 pm-8:00 am

1 stop23h 10m

Kathmandu Tribhuvan

Fri 9/19

3:35 pm-2:10 pm

1 stop32h 20m

$1,166

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Thu 9/25

10:00 pm-4:45 pm

1 stop33h 00m

Kathmandu Tribhuvan

Thu 10/30

6:45 pm-2:55 pm

1 stop29h 55m

$1,280

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 7/6

4:30 pm-3:40 pm

1 stop37h 25m

Kathmandu Tribhuvan

Tue 7/22

4:20 pm-2:55 pm

1 stop32h 20m

$1,469

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 8/15

9:35 pm-1:00 pm

2 stops29h 40m

$411

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 8/26

1:55 pm-9:50 am

3 stops34h 10m

$469

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 8/20

1:45 pm-9:45 pm

3 stops46h 15m

$613

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 7/27

4:30 pm-3:40 pm

1 stop37h 25m

$697

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
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Best time to book a flight from Boston to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu 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 Kathmandu

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Kathmandu. Price data was last updated on June 9, 2025.

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Kathmandu. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Boston to Kathmandu (average of $1,237). Flying from Boston to Kathmandu in June is currently the most expensive (average of $1,735). 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 KTM?

Find hourly flight availability from Boston to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Boston to Kathmandu, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 6% versus a flight in the morning.

Rainfall in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. 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 Kathmandu. Reviews last updated June 12, 2025.
To help decide which airline to fly from Boston to Kathmandu, see what other customers have to say about Emirates, Singapore Airlines and Cathay Pacific. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,302 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Cathay Pacific
7.6
Good
892 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,623 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,584 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Entertainment

8.2

Food

7.8

Boarding

8.1

Comfort

8.0

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Boston to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boston to Kathmandu round-trip?

    Our cheapest airline available from Boston to Kathmandu is Cathay Pacific. Our recent data shows that you can find tickets from as low as $1,031 on this airline. Additional options worth looking into are IndiGo and Emirates, starting at $1,050 and $1,166 round-trip. Users have found that Cathay Pacific is 31% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is IndiGo, with whom users have recently found tickets for as low as $411. However, be on the lookout for offers from Singapore Airlines and Etihad Airways, as they are both options that can get you from Boston to Kathmandu for a low price.

  • Where are the most common layover locations when flying from Boston to Kathmandu?

    Of the flights from Boston to Kathmandu that have layovers, most of them stop in Doha.

  • What are some popular things to do or see while on a layover in Doha?

    If you're on a layover in Doha and looking for things to do, consider visiting Museum of Islamic Art, Katara Cultural Village, or Aspire Tower. Those on a layover in Doha interested in visiting Museum of Islamic Art, Katara Cultural Village, or Aspire Tower can do so by traveling 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Those landing in Doha looking to spend some time exploring during their layover can rent a car for about $28 per day.

  • Where are the least popular layover locations for Boston to Kathmandu flights?

    The least popular layover on flights from Boston to Kathmandu is Istanbul.

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

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

  • How can I find direct flights from Boston to Kathmandu?

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

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

    Yes. Cheapflights offers flight deals from Boston to Kathmandu 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 Kathmandu?

    Currently, September is the cheapest month in which you can book a flight from Boston to Kathmandu (average of $1,237). Flying from Boston to Kathmandu in June is currently the most expensive (average of $1,735). 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.

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Alternative routes for Boston to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
Albany to Kathmandu flights
Hartford to Kathmandu flights
Worcester to Kathmandu flights

Top 8 airlines flying from Boston to Kathmandu

Discover the top 8 airlines that operate flights from Boston to Kathmandu. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$772Average$993FlexibilityNo cancel feeOn-time72%
IndiGoCheapest$1,191Average$1,380FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,250Average$1,511FlexibilityNo cancel feeOn-time68%
KLMCheapest$1,307Average$1,350FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$1,310Average$1,541FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,381Average$1,757FlexibilityNo cancel feeOn-time75%
Etihad AirwaysCheapest$1,437Average$1,690FlexibilityNo cancel feeOn-time75%
SWISSCheapest$1,599Average$1,666FlexibilityNo cancel feeOn-time79%

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