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Kathmandu

$467+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KTM
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,199
(Booking.com)

One-way from

$655
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,560
Provider with most accurate pricing for Boston Logan Intl-Kathmandu Tribhuvan flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Kathmandu Tribhuvan flights.
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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. 2% potential increase in price ($45 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 May 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 May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:30 pmBOS - KTM
3 stops35h 50mMultiple Airlines
Mon 5/264:40 pmKTM - BOS
2 stops36h 45mMultiple Airlines
Deal found 4/29$1,178
This Ovago deal was found by Cheapflights users on 4/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:30 amBOS - KTM
1 stop34h 45mCathay Pacific
Sat 11/2911:15 pmKTM - BOS
1 stop33h 30mCathay Pacific
Deal found 4/30$1,189
This Booking.com deal was found by Cheapflights users on 4/29. 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.
Fri 5/99:35 pmBOS - KTM
2 stops26h 30mIndiGo
Fri 5/162:00 pmKTM - BOS
2 stops39h 25mIndiGo
Deal found 4/29$1,209
This Indian Eagle deal was found by Cheapflights users on 4/29. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:00 pmBOS - KTM
1 stop33h 00mQatar Airways
Wed 12/106:45 pmKTM - BOS
1 stop29h 55mQatar Airways
Deal found 4/29$1,306
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Sat 11/17:35 pmBOS - KTM
2 stops40h 20mSingapore Airlines
Mon 12/111:00 pmKTM - BOS
2 stops44h 17mSingapore Airlines
Deal found 4/29$1,443
This Indian Eagle deal was found by Cheapflights users on 4/30. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:10 pmBOS - KTM
1 stop23h 25mEmirates
Sun 3/812:55 amKTM - BOS
1 stop23h 20mEmirates
Deal found 4/30$1,487
This oojo deal was found by Cheapflights users on 4/29. 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 6/124:30 pmBOS - KTM
1 stop37h 25mEtihad Airways
Thu 7/104:20 pmKTM - BOS
1 stop32h 20mEtihad Airways
Deal found 4/29$1,577
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Sat 5/179:35 pmBOS - KTM
1 stop22h 55mTurkish Airlines
Fri 5/307:40 amKTM - BOS
1 stop21h 45mTurkish Airlines
Deal found 4/30$1,624

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 May 1, 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 9/27

1:40 am-9:45 pm

1 stop34h 20m

Kathmandu Tribhuvan

Sat 10/25

11:00 pm-11:00 pm

1 stop33h 45m

$1,196

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 10/1

7:05 pm-2:05 pm

2 stops33h 15m

Kathmandu Tribhuvan

Wed 10/22

3:05 pm-3:40 pm

2 stops34h 20m

$1,210

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 9/10

10:00 pm-4:45 pm

1 stop33h 00m

Kathmandu Tribhuvan

Wed 12/10

6:45 pm-1:55 pm

1 stop29h 55m

$1,306

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 6/6

9:35 pm-1:00 pm

2 stops29h 40m

Kathmandu Tribhuvan

Sat 6/14

4:40 pm-7:40 pm

2 stops36h 45m

$1,419

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 8/29

6:10 pm-9:45 pm

2 stops41h 50m

Kathmandu Tribhuvan

Fri 3/20

11:00 pm-11:54 pm

2 stops34h 39m

$1,521

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Thu 6/12

4:30 pm-3:40 pm

1 stop37h 25m

Kathmandu Tribhuvan

Thu 7/10

4:20 pm-2:55 pm

1 stop32h 20m

$1,577

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sat 5/17

9:35 pm-6:15 am

1 stop22h 55m

Kathmandu Tribhuvan

Fri 5/30

7:40 am-7:40 pm

1 stop21h 45m

$1,624

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 8/22

11:05 pm-11:05 pm

1 stop38h 15m

Kathmandu Tribhuvan

Fri 1/16

12:55 am-1:55 pm

1 stop23h 45m

$1,690

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Thu 6/19

9:40 pm-6:35 am

2 stops47h 10m

Kathmandu Tribhuvan

Sun 6/29

9:00 pm-7:55 pm

2 stops32h 40m

$1,696

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 5/11

9:35 pm-1:00 pm

2 stops29h 40m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 results
1
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Compare providers for flights from Boston to Kathmandu

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 Kathmandu in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy3 starsTrust 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-Kathmandu flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Kathmandu flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kathmandu flights, Cheapflights users trust AranGrant the most. AranGrant 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-Kathmandu 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 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 April 25, 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 $1,886). 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 May 1, 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 May 1, 2025.
To help decide which airline to fly from Boston to Kathmandu, see what other customers have to say about Singapore Airlines, Emirates and Cathay Pacific. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,215 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Cathay Pacific
7.5
Good
855 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
SWISS
7.5
Good
1,588 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,563 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Entertainment

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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 IndiGo. Our recent data shows that you can find tickets from as low as $1,199 on this airline. Additional options worth looking into are Cathay Pacific and Qatar Airways, starting at $1,209 and $1,303 round-trip. Users have found that IndiGo is 21% 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 $703. However, be on the lookout for offers from Etihad Airways and Qatar 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 $29 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 $1,886). 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 Kathmandu

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

Top 7 airlines flying from Boston to Kathmandu

Discover the top 7 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$770Average$996FlexibilityNo cancel feeOn-time72%
IndiGoCheapest$1,201Average$1,386FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,254Average$1,526FlexibilityNo cancel feeOn-time68%
KLMCheapest$1,307Average$1,350FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$1,310Average$1,560FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,381Average$1,770FlexibilityNo cancel feeOn-time75%
SWISSCheapest$1,599Average$1,655FlexibilityNo cancel feeOn-time79%

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