How long is the flight from Kathmandu to Boston?

A quick flight from Kathmandu to Boston can take about 51h 59m. Singapore Airlines provides one of the quickest options available for as low as £1,908. There are 7362 mi between Kathmandu and Boston.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What is the cheapest time of day to fly from KTM to BOS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kathmandu to Boston as you normally would.

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

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

How can I find direct flights from Kathmandu to Boston?

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

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

Yes. Cheapflights offers flight deals from Kathmandu to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£691+ Cheap Flights from Kathmandu to Boston

Cheap flight deals from Kathmandu to Boston

Enter your travel dates to find the best prices.

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Best

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Cheapest flights from Kathmandu to Boston
Explore the most affordable flight options available from Kathmandu to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Mon 14/923:00 -

1 stop33h 50m

Wed 10/300:30 -

1 stop34h 15m

Deal found 6/9£1,085

Thu 17/900:35 -

1 stop23h 25m

Fri 18/916:55 -

2 stops44h 55m

Deal found 6/9£1,669

Thu 22/1022:50 -

2 stops34h 53m

Mon 30/1115:00 -

3 stops44h 05m

Deal found 5/9£1,767

Wed 21/1023:10 -

3 stops51h 59m

Mon 30/1113:24 -

3 stops45h 41m

Deal found 6/9£1,908

Mon 28/923:10 -

3 stops51h 56m

Mon 30/1113:24 -

3 stops45h 41m

Deal found 7/9£2,073

Find flight deals from Kathmandu to Boston

Round-trip from	£1,767
One-way from	£691
Popular in	January
Cheapest in	March
Average price	£1,117

22/10-30/11
5 total stops
78h 58m total
Kathmandu to Boston

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Qatar Airways
6/10-31/12
1 total stop
31h 30m total
Kathmandu to Boston

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£202 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£45 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Tue 6/10

17:30-15:15

1 stop31h 30m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£691

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Sat 5/12

09:35-13:55

1 stop39h 05m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£708

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Mon 9/11

15:00-13:55

1 stop33h 40m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£736

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Thu 5/11

09:20-13:55

1 stop39h 20m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£736

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Wed 23/9

23:00-23:05

1 stop33h 50m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£809

Fastest return journey

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Sat 14/11

17:40-13:55

1 stop31h 00m

Boston Logan Intl

Wed 31/12

00:00-10:30

Nonstop0h 00m

£863

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Thu 22/10

22:50-23:58

2 stops34h 53m

Boston Logan Intl

Mon 30/11

15:00-21:50

3 stops44h 05m

£1,767

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Wed 21/10

23:10-17:24

3 stops51h 59m

Boston Logan Intl

Mon 30/11

13:24-21:50

3 stops45h 41m

£1,908

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Mon 28/9

23:10-17:21

3 stops51h 56m

Boston Logan Intl

Mon 30/11

13:24-21:50

3 stops45h 41m

£2,073

KathmanduBoston

KTM Kathmandu Tribhuvan - BOS Boston Logan Intl

KTMBOS

Kathmandu Tribhuvan

Wed 21/10

23:10-14:45

3 stops49h 20m

Boston Logan Intl

Mon 30/11

18:10-21:50

2 stops40h 55m

£2,606

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Kathmandu to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Kathmandu with our price prediction graph.

KTM-BOS

Estimated return 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 Kathmandu to Boston

How much does it cost for a return flight from Kathmandu to Boston?

Airfare is above average for this route at the moment.

Kathmandu to Boston flights typically cost between £1,078 and £1,283 in October.
The cheapest return price found within the last 5 days was £1,767 on Multiple Airlines (22 Oct–30 Nov).

Related info for your journey

How long is the flight from Kathmandu to Boston?
A quick flight from Kathmandu to Boston can take about 51h 59m. Singapore Airlines provides one of the quickest options available for as low as £1,908. There are 7362 mi between Kathmandu and Boston.
Can I find deals for flights from Kathmandu to Boston that include hotel bookings?
Yes. In addition to deals on Kathmandu to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Kathmandu to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Boston.
Can I find deals for business class flights from Kathmandu to Boston?
Yes. Cheapflights offers flight deals from Kathmandu to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights makes it easy to find Kathmandu to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Kathmandu to Boston for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Boston from Kathmandu? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Kathmandu to Boston flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Kathmandu to Boston from £691

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kathmandu to Boston

Cheapest flights from Kathmandu to BostonExplore the most affordable flight options available from Kathmandu to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Explore the most affordable flight options available from Kathmandu to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Kathmandu to BostonDiscover carefully curated flight deals from Kathmandu to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from Kathmandu to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Kathmandu to BostonDiscover last-minute flight deals from Kathmandu to Boston. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Kathmandu to Boston. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Kathmandu to BostonSearch for one-way flight options from Kathmandu to Boston. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from Kathmandu to Boston. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

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Use the filters below to find and compare flights from Kathmandu to Boston that are best for you.

Best time to book a flight from Kathmandu to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Kathmandu with our price prediction graph.

Cheapflights Insights

How much does it cost for a return flight from Kathmandu to Boston?

Airfare is above average for this route at the moment.

Kathmandu to Boston flights typically cost between £1,078 and £1,283 in October.The cheapest return price found within the last 5 days was £1,767 on Multiple Airlines (22 Oct–30 Nov).

Related info for your journey

How long is the flight from Kathmandu to Boston?

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

How can I find direct flights from Kathmandu to Boston?

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

Travelling to a place near Boston?

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Other flights to Boston

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Find flights from Kathmandu to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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Fly with Cheapflights

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

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

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

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

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Cheapest flights from Kathmandu to Boston
Explore the most affordable flight options available from Kathmandu to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Kathmandu to Boston
Discover carefully curated flight deals from Kathmandu to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Kathmandu to Boston
Discover last-minute flight deals from Kathmandu to Boston. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Kathmandu to Boston
Search for one-way flight options from Kathmandu to Boston. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Kathmandu to Boston flights typically cost between £1,078 and £1,283 in October.
The cheapest return price found within the last 5 days was £1,767 on Multiple Airlines (22 Oct–30 Nov).