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Cheap flights from Boston to Kathmandu

BOS — KTM
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Popular in

December

Cheapest in

February

Average price

C$ 1,837
Highest demand for flights based on searches. 3% potential increase in price (C$ 100 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 59 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 12 September 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, May is the cheapest month in which you can book a flight from Boston to Kathmandu (average of C$ 1,396). Flying from Boston to Kathmandu in December is currently the most expensive (average of C$ 1,918). 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 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 15 September 2025.
See what other customers who have flown with Cathay Pacific from Boston to Kathmandu have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
993 reviews
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Crew

8.1

Overall

7.6

Food

7.3

Entertainment

7.8

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
993 reviews
Cathay Pacific
7.6
Good
993 reviews
Check prices

Crew

8.1

Overall

7.6

Food

7.3

Entertainment

7.8

Comfort

7.6

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

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 is the cheapest airline to fly from Boston to Kathmandu round-trip?

    Cathay Pacific, at C$ 1,392, was found to be the cheapest airline from Boston to Kathmandu.. Cathay Pacific is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from Boston to Kathmandu (average of C$ 1,396). Flying from Boston to Kathmandu in December is currently the most expensive (average of C$ 1,918). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to Kathmandu by adding a car rental and/or hotel reservation to your travel itinerary.
Kathmandu car rentals
Kathmandu Tribhuvan Airport car rentals

Top airline flying from Boston to Kathmandu

Discover the top airline 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 629,999 searches. Data last updated 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapestC$ 1,392AverageC$ 1,393FlexibilityNo cancel feeOn-time72%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Kathmandu?

Deals for Boston to Kathmandu flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Boston to Kathmandu?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Kathmandu for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to Kathmandu with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Kathmandu, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Kathmandu become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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