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Cheap flights from Boston to Kathmandu from $408

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Kathmandu departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Kathmandu

Cheap round-trip flights

Cathay Pacific Logo
1:40 am - 9:45 pmBOS-KTM
34h 20m1 stop
Cathay Pacific Logo
11:00 pm - 11:00 pmKTM-BOS
33h 45m1 stop
$808Cathay Pacific
Find Deal
Mon, Aug 18 - Thu, Sep 25
Cathay Pacific Logo
1:40 am - 9:45 pmBOS-KTM
34h 20m1 stop
Cathay Pacific Logo
11:00 pm - 11:00 pmKTM-BOS
33h 45m1 stop
$814Cathay Pacific
Find Deal
Wed, Aug 20 - Thu, Sep 4
Cathay Pacific Logo
1:40 am - 9:45 pmBOS-KTM
34h 20m1 stop
Cathay Pacific Logo
11:00 pm - 11:00 pmKTM-BOS
33h 45m1 stop
$843Cathay Pacific
Find Deal
Mon, Aug 18 - Sun, Sep 21
Cathay Pacific Logo
1:40 am - 9:45 pmBOS-KTM
34h 20m1 stop
Cathay Pacific Logo
11:00 pm - 11:00 pmKTM-BOS
33h 45m1 stop
$890Cathay Pacific
Find Deal
Mon, Sep 1 - Fri, Sep 12
 Logo
4:30 pm - 9:50 amBOS-KTM
31h 35m2 stops
 Logo
2:00 pm - 2:55 pmKTM-BOS
58h 40m2 stops
Sun, Aug 17 - Mon, Sep 1
 Logo
4:30 pm - 6:10 pmBOS-KTM
39h 55m2 stops
 Logo
1:25 pm - 2:55 pmKTM-BOS
35h 15m2 stops
Sun, Aug 24 - Wed, Oct 8
IndiGo Logo
9:35 pm - 3:40 pmBOS-KTM
32h 20m2 stops
IndiGo Logo
10:50 am - 7:40 pmKTM-BOS
42h 35m2 stops
$1,002IndiGo
Find Deal
Sat, Jul 19 - Sat, Jul 26
Emirates Logo
11:05 pm - 2:35 pmBOS-KTM
29h 45m1 stop
Emirates Logo
11:55 pm - 2:10 pmKTM-BOS
24h 00m1 stop
$1,050Emirates
Find Deal
Sun, Aug 24 - Wed, Oct 8
Emirates Logo
11:05 pm - 8:00 amBOS-KTM
23h 10m1 stop
Emirates Logo
11:55 pm - 2:10 pmKTM-BOS
24h 00m1 stop
$1,224Emirates
Find Deal
Wed, Aug 20 - Tue, Sep 23
IndiGo Logo
8:00 pm - 3:40 pmBOS-KTM
32h 55m2 stops
IndiGo Logo
10:50 am - 6:05 pmKTM-BOS
42h 00m2 stops
$1,227IndiGo
Find Deal
Mon, Nov 17 - Sat, Dec 13

IndiGo flights from Boston to Kathmandu

Our best IndiGo deals on Boston to Kathmandu flight tickets
IndiGo
Jul 19
BOS9:35 pmBoston Logan Intl
32h 20m
2 stops
KTM3:40 pmKathmandu Tribhuvan
Jul 26
KTM10:50 amKathmandu Tribhuvan
42h 35m
2 stops
BOS7:40 pmBoston Logan Intl
IndiGo
Jul 8
BOS9:35 pmBoston Logan Intl
29h 40m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Jul 15
KTM10:50 amKathmandu Tribhuvan
42h 35m
2 stops
BOS7:40 pmBoston Logan Intl
IndiGo
Jul 6
BOS9:35 pmBoston Logan Intl
26h 30m
2 stops
KTM9:50 amKathmandu Tribhuvan
Jul 8
KTM4:40 pmKathmandu Tribhuvan
36h 45m
2 stops
BOS7:40 pmBoston Logan Intl

Cathay Pacific flights from Boston to Kathmandu

Our best Cathay Pacific deals on Boston to Kathmandu flight tickets
Cathay Pacific
Aug 18
BOS1:40 amBoston Logan Intl
34h 20m
1 stop
KTM9:45 pmKathmandu Tribhuvan
Sep 25
KTM11:00 pmKathmandu Tribhuvan
33h 45m
1 stop
BOS11:00 pmBoston Logan Intl
Cathay Pacific
Aug 20
BOS1:40 amBoston Logan Intl
34h 20m
1 stop
KTM9:45 pmKathmandu Tribhuvan
Sep 4
KTM11:00 pmKathmandu Tribhuvan
33h 45m
1 stop
BOS11:00 pmBoston Logan Intl
Cathay Pacific
Aug 18
BOS1:40 amBoston Logan Intl
34h 20m
1 stop
KTM9:45 pmKathmandu Tribhuvan
Sep 21
KTM11:00 pmKathmandu Tribhuvan
33h 45m
1 stop
BOS11:00 pmBoston Logan Intl

See travel insights to Kathmandu from

How to get the cheapest flight ticket from Boston to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Kathmandu?

The month of August is another great option to travel to Kathmandu, with average flight prices from Boston averaging around $1,329.

What is the cheapest day to depart on your flight to Kathmandu?

According to our data, Tuesday is the cheapest day to fly to Kathmandu from Boston. The lowest ticket price found for a Tuesday departure recently was $1,421. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Boston to Kathmandu on a Sunday will generally be more expensive and average around $1,596. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kathmandu?

In the evening is the cheapest time of day to fly from Boston to Kathmandu when you can find flight prices for as low as $1,454. Flying to Kathmandu in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $1,537.

How far in advance should I book a flight to Kathmandu?

You are more likely to see cheaper flights to Kathmandu from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,503 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from Boston for as low as $1,247 on momondo.

How have Boston to Kathmandu flight prices changed over time?

As of July 2025, prices for Boston to Kathmandu flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Kathmandu (BOS to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Kathmandu

Best Price Found

$408

Fastest flight time

20h 45m

Direct flights

None

Airports in Kathmandu

1 airport
The best one-way flight to Kathmandu from Boston in the past 72 hours is $408. The best round-trip flight deal from Boston to Kathmandu found on momondo in the last 72 hours is $808.
The fastest flight from Boston to Kathmandu takes 20h 45m
There are no direct flights from Boston to Kathmandu. Popular non-direct route for this connection is Boston Logan Intl Airport - Kathmandu Tribhuvan Airport.
There is 1 airport near Kathmandu: Kathmandu Tribhuvan (KTM)

  • How far is Boston Logan Intl to Kathmandu Tribhuvan by plane?

    A flight from Boston Logan Intl to Kathmandu Tribhuvan will travel around 7361.3 mi. 20h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Kathmandu Tribhuvan Airport?

    Prices for flights from Boston Logan Intl Airport to Kathmandu Tribhuvan Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Kathmandu Tribhuvan Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Kathmandu Tribhuvan Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Kathmandu Tribhuvan Airport.

  • What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

    The necessary travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Kathmandu?


Best airlines flying from Boston to Kathmandu

Compare and see reviews for airlines that fly from Boston to Kathmandu with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $771Free CancellationRating
7.6
924 reviews
Search Cathay Pacific flights
EmiratesPriceFrom $1,050Free CancellationRating
8.1
3,287 reviews
Search Emirates flights
IndiGoPriceFrom $1,191Free CancellationRating
6.8
478 reviews
Search IndiGo flights
Qatar AirwaysPriceFrom $1,242Free CancellationRating
7.4
3,588 reviews
Search Qatar Airways flights
KLMPriceFrom $1,307Free CancellationRating
7.8
1,366 reviews
Search KLM flights
Turkish AirlinesPriceFrom $1,310Free CancellationRating
7.3
3,895 reviews
Search Turkish Airlines flights
SWISSPriceFrom $1,599Free CancellationRating
7.5
1,654 reviews
Search SWISS flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Kathmandu?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Kathmandu. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Kathmandu with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kathmandu from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Kathmandu?

momondo provides multiple filters to help you find the best flight to Kathmandu from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Kathmandu right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Kathmandu flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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