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Cheap Flights from Boston (BOS) to Kathmandu (KTM)

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Compare Boston Logan International to Kathmandu flight deals

Find the cheapest month or even day of the year to fly to Kathmandu

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Flight deals from Boston Logan International to Kathmandu

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to Kathmandu? Find the lowest prices on one-way and return tickets right here.
Kathmandu.$1,574 per passenger.Departing Mon, 5 May, returning Sun, 18 May.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Boston Logan International on Mon, 5 May, arriving in Kathmandu.Inbound indirect flight with Cathay Pacific, departs from Kathmandu on Sun, 18 May, arriving in Boston Logan International.Price includes taxes and charges.From $1,574, select.
Kathmandu.$1,600 per passenger.Departing Thu, 18 Sep, returning Fri, 10 Oct.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Boston Logan International on Thu, 18 Sep, arriving in Kathmandu.Inbound indirect flight with Cathay Pacific, departs from Kathmandu on Fri, 10 Oct, arriving in Boston Logan International.Price includes taxes and charges.From $1,600, select.
Kathmandu.$1,603 per passenger.Departing Fri, 10 Oct, returning Sat, 25 Oct.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Boston Logan International on Fri, 10 Oct, arriving in Kathmandu.Inbound indirect flight with Cathay Pacific, departs from Kathmandu on Sat, 25 Oct, arriving in Boston Logan International.Price includes taxes and charges.From $1,603, select.
Kathmandu.$1,856 per passenger.Departing Thu, 16 Oct, returning Tue, 11 Nov.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Boston Logan International on Thu, 16 Oct, arriving in Kathmandu.Inbound indirect flight with Cathay Pacific, departs from Kathmandu on Tue, 11 Nov, arriving in Boston Logan International.Price includes taxes and charges.From $1,856, select.
Kathmandu.$1,948 per passenger.Departing Tue, 20 May, returning Fri, 20 Jun.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from Boston Logan International on Tue, 20 May, arriving in Kathmandu.Inbound indirect flight with IndiGo, departs from Kathmandu on Fri, 20 Jun, arriving in Boston Logan International.Price includes taxes and charges.From $1,948, select.
Kathmandu.$2,110 per passenger.Departing Sat, 14 Jun, returning Sat, 21 Jun.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from Boston Logan International on Sat, 14 Jun, arriving in Kathmandu.Inbound indirect flight with IndiGo, departs from Kathmandu on Sat, 21 Jun, arriving in Boston Logan International.Price includes taxes and charges.From $2,110, select.
Kathmandu.$2,208 per passenger.Departing Fri, 8 Aug, returning Tue, 26 Aug.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from Boston Logan International on Fri, 8 Aug, arriving in Kathmandu.Inbound indirect flight with IndiGo, departs from Kathmandu on Tue, 26 Aug, arriving in Boston Logan International.Price includes taxes and charges.From $2,208, select.
Kathmandu.$2,223 per passenger.Departing Wed, 9 Jul, returning Wed, 16 Jul.Return flight with IndiGo.Outbound indirect flight with IndiGo, departs from Boston Logan International on Wed, 9 Jul, arriving in Kathmandu.Inbound indirect flight with IndiGo, departs from Kathmandu on Wed, 16 Jul, arriving in Boston Logan International.Price includes taxes and charges.From $2,223, select.

Find the cheapest month to fly from Boston Logan International to Kathmandu

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Kathmandu flights are currently cheapest in May.
May
from $1,574
Jun
from $2,110
Jul
from $2,223
Aug
from $2,208
Sep
Find prices
Oct
from $1,603
Nov
from $2,450
Dec
Find prices
Jan
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Feb
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Mar
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Apr
from $2,316

Boston Logan International to Kathmandu: Alternative routes

Compare routes from Boston Logan International to Kathmandu below. You may find an airport to fly into that's cheaper, faster, or easier than Kathmandu.

Boston to Kathmandu: Flight information

The things to know before you go.
Cheapest flight found$1,574
Cheapest month to flyMay

Finding cheap flights from Boston Logan International to Kathmandu: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Kathmandu is $1,574. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boston Logan International to Kathmandu. But we found flights with one or more stops from $1,574.
As of May 2025, there are no flights flying from Boston Logan International to Kathmandu.
The cheapest month to fly from Boston Logan International to Kathmandu is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Kathmandu Airport on Monday, 5 May 2025.
No airlines currently offer direct flights between Boston Logan International Airport and Kathmandu Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kathmandu but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kathmandu is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Cathay Pacific offers the cheapest flight tickets to Kathmandu.

Travelling from Logan International Airport (BOS) to Tribhuvan International Airport (KTM): what you need to know

  • Kathmandu is nine hours 48 minutes ahead of Boston and observes the UTC+5:47 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Get to the airport on time to catch your BOS to KTM flight.

  • Travelling during a peak month like August? Major public holidays and other popular seasons can result in longer lines at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Logan International Airport to Tribhuvan International Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to visit your chosen city. Some great stopovers between BOS and KTM include:

    • Dubai Airport

    • Hamad International Airport

    • Istanbul Ataturk Airport

How to find the cheapest flights from Logan International Airport (BOS) to Tribhuvan International Airport (KTM)

  • $660 is the lowest price for a one-way Logan International Airport to Tribhuvan International Airport flight. Return flights start from $1,574. These prices can change based on availability.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from BOS to KTM if you book in advance. Airlines often offer some terrific early bird deals.

  • Finding cheap flights from Logan International Airport to Tribhuvan International Airport is easy if you can be flexible with your dates. Use the 'Whole month' tool to see the best prices across each month and bag a great deal.

  • Never miss a deal on cheap flights from BOS to KTM by setting up a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.

  • Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Logan International Airport to Tribhuvan International Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Logan International Airport (BOS)

  • You'll find BOS at One Harborside Drive.

  • Of all flights leaving Logan International Airport, 73.94% arrive on time at their destination.

  • To get to Logan International Airport from central Boston, it takes about 10 minutes by car. This depends on traffic, however. It's approximately 5 kilometres from the airport to the city centre.

  • The journey when using public transport will take about 25 minutes.

  • Get your travels off to a hassle-free start by staying near BOS. Whether you're taking an early flight from Logan International Airport to Tribhuvan International Airport or just don't want to be rushed, these hotels have you covered:

Arriving at Tribhuvan International Airport (KTM)

  • The last thing you want is a long trip to your hotel if you're getting in late on a Logan International Airport to Tribhuvan International Airport flight. Check in to one of these accommodation options near KTM instead:

  • Pick up a Tribhuvan International Airport rental car and explore parts of Kathmandu that aren't in every guidebook. Book your wheels with Spark Car.

  • To get the lowest price, reserve your vehicle from Tribhuvan International Airport about one week before you travel.

Getting from Tribhuvan International Airport (KTM) to central Kathmandu

  • Tribhuvan International Airport to central Kathmandu has a drive time of about 15 minutes. It's approximately 5 kilometres away.

When to fly to Tribhuvan International Airport (KTM)

  • September is the busiest month for flights from Logan International Airport to Tribhuvan International Airport. To skip the crowds, head to Kathmandu in February.

  • Book your flight from Logan International Airport to Tribhuvan International Airport for June if you'd like to go to Kathmandu during its warmest month. Expect temperatures of between 17ºC (63ºF) and 28ºC (82ºF).

  • Search for cheap tickets from BOS to KTM in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 3ºC (37ºF) and 18ºC (64ºF) on average.

Explore more of Nepal

  • You've seen Kathmandu, now it's time to explore other parts of Nepal. Travel about 145 kilometres north-west to Pokhara to check off its top attractions. From Phewa Lake to Sarangkot and Gupteshwor Mahadev Cave, your itinerary will be busy.

  • Around 6 kilometres south of Kathmandu, Patan is another essential stop in Nepal. Experience the best of this destination with a visit to Aspur Agro Farm, Pimbahaa Pukhoo and Rajib Handicraft.

Plan the rest of your trip from Boston to Kathmandu

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.