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Cheap flights from Boston to Kathmandu from $426

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 11/4. 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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Find the cheapest flights from Boston to Kathmandu

Cheap round-trip flights

Multiple Airlines Logo
7:05 pm - 9:55 amBOS-KTM
29h 05m2 stops
Multiple Airlines Logo
10:55 am - 9:00 pmKTM-BOS
43h 50m2 stops
$1,024Multiple Airlines
Find Deal
Mon, Oct 6 - Wed, Oct 15
IndiGo Logo
9:00 pm - 3:40 pmBOS-KTM
32h 55m2 stops
IndiGo Logo
2:05 pm - 6:05 pmKTM-BOS
38h 45m2 stops
$1,027IndiGo
Find Deal
Sat, Nov 1 - Tue, Dec 16
Cathay Pacific Logo
12:30 am - 9:30 pmBOS-KTM
34h 15m1 stop
Cathay Pacific Logo
10:55 pm - 10:00 pmKTM-BOS
33h 50m1 stop
$1,028Cathay Pacific
Find Deal
Mon, Feb 9 - Sat, Feb 21
Cathay Pacific Logo
12:30 am - 9:30 pmBOS-KTM
34h 15m1 stop
Cathay Pacific Logo
10:55 pm - 10:00 pmKTM-BOS
33h 50m1 stop
$1,030Cathay Pacific
Find Deal
Sun, Feb 8 - Fri, Feb 20
Multiple Airlines Logo
3:40 pm - 11:00 pmBOS-KTM
20h 35m2 stops
Multiple Airlines Logo
5:30 pm - 6:05 pmKTM-BOS
35h 20m2 stops
$1,031Multiple Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 30
IndiGo Logo
9:35 pm - 1:00 pmBOS-KTM
29h 40m2 stops
IndiGo Logo
2:00 pm - 7:40 pmKTM-BOS
39h 25m2 stops
$1,033IndiGo
Find Deal
Wed, Oct 1 - Thu, Oct 16
Multiple Airlines Logo
9:35 pm - 2:05 pmBOS-KTM
30h 45m2 stops
Multiple Airlines Logo
9:00 pm - 6:10 pmKTM-BOS
30h 55m3 stops
$1,034Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
3:40 pm - 11:00 pmBOS-KTM
20h 35m2 stops
Multiple Airlines Logo
9:00 pm - 6:05 pmKTM-BOS
31h 50m2 stops
$1,037Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Emirates Logo
10:10 pm - 2:00 pmBOS-KTM
29h 05m1 stop
Emirates Logo
7:15 pm - 1:55 pmKTM-BOS
29h 25m1 stop
$1,170Emirates
Find Deal
Thu, Feb 5 - Thu, Mar 5
Emirates Logo
11:05 pm - 11:20 pmBOS-KTM
38h 30m1 stop
Emirates Logo
11:40 pm - 1:55 pmKTM-BOS
25h 00m1 stop
$1,176Emirates
Find Deal
Sun, Oct 12 - Sun, Dec 14

Cathay Pacific flights from Boston to Kathmandu

Our best Cathay Pacific deals on Boston to Kathmandu flight tickets
Cathay Pacific
Feb 9
BOS12:30 amBoston Logan Intl
34h 15m
1 stop
KTM9:30 pmKathmandu Tribhuvan
Feb 21
KTM10:55 pmKathmandu Tribhuvan
33h 50m
1 stop
BOS10:00 pmBoston Logan Intl
$1,028
Find similar
Cathay Pacific
Feb 8
BOS12:30 amBoston Logan Intl
34h 15m
1 stop
KTM9:30 pmKathmandu Tribhuvan
Feb 20
KTM10:55 pmKathmandu Tribhuvan
33h 50m
1 stop
BOS10:00 pmBoston Logan Intl
$1,030
Find similar
Cathay Pacific
Feb 11
BOS12:30 amBoston Logan Intl
34h 15m
1 stop
KTM9:30 pmKathmandu Tribhuvan
Feb 19
KTM10:55 pmKathmandu Tribhuvan
33h 50m
1 stop
BOS10:00 pmBoston Logan Intl
$1,041
Find similar

IndiGo flights from Boston to Kathmandu

Our best IndiGo deals on Boston to Kathmandu flight tickets
IndiGo
Nov 1
BOS9:00 pmBoston Logan Intl
32h 55m
2 stops
KTM3:40 pmKathmandu Tribhuvan
Dec 16
KTM2:05 pmKathmandu Tribhuvan
38h 45m
2 stops
BOS6:05 pmBoston Logan Intl
$1,027
Find similar
IndiGo
Oct 1
BOS9:35 pmBoston Logan Intl
29h 40m
2 stops
KTM1:00 pmKathmandu Tribhuvan
Oct 16
KTM2:00 pmKathmandu Tribhuvan
39h 25m
2 stops
BOS7:40 pmBoston Logan Intl
$1,033
Find similar
IndiGo
Oct 2
BOS9:35 pmBoston Logan Intl
26h 30m
2 stops
KTM9:50 amKathmandu Tribhuvan
Oct 17
KTM3:05 pmKathmandu Tribhuvan
38h 20m
2 stops
BOS7:40 pmBoston Logan Intl
$1,048
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Boston to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 10/6

7:05 pm-9:55 am

2 stops29h 05m

Kathmandu Tribhuvan

Wed 10/15

10:55 am-9:00 pm

2 stops43h 50m

$1,024

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sat 11/1

9:00 pm-3:40 pm

2 stops32h 55m

Kathmandu Tribhuvan

Tue 12/16

2:05 pm-6:05 pm

2 stops38h 45m

$1,027

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 2/9

12:30 am-9:30 pm

1 stop34h 15m

Kathmandu Tribhuvan

Sat 2/21

10:55 pm-10:00 pm

1 stop33h 50m

$1,028

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 2/8

12:30 am-9:30 pm

1 stop34h 15m

Kathmandu Tribhuvan

Fri 2/20

10:55 pm-10:00 pm

1 stop33h 50m

$1,030

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 11/9

3:40 pm-11:00 pm

2 stops20h 35m

Kathmandu Tribhuvan

Sun 11/30

5:30 pm-6:05 pm

2 stops35h 20m

$1,031

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 10/1

9:35 pm-1:00 pm

2 stops29h 40m

Kathmandu Tribhuvan

Thu 10/16

2:00 pm-7:40 pm

2 stops39h 25m

$1,033

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 10/14

9:35 pm-2:05 pm

2 stops30h 45m

Kathmandu Tribhuvan

Tue 10/21

9:00 pm-6:10 pm

3 stops30h 55m

$1,034

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 11/11

3:40 pm-11:00 pm

2 stops20h 35m

Kathmandu Tribhuvan

Tue 11/18

9:00 pm-6:05 pm

2 stops31h 50m

$1,037

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Thu 2/5

10:10 pm-2:00 pm

1 stop29h 05m

Kathmandu Tribhuvan

Thu 3/5

7:15 pm-1:55 pm

1 stop29h 25m

$1,170

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 10/12

11:05 pm-11:20 pm

1 stop38h 30m

Kathmandu Tribhuvan

Sun 12/14

11:40 pm-1:55 pm

1 stop25h 00m

$1,176

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $1,304.

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 $1,477 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 $1,245 on momondo.

How have Boston to Kathmandu flight prices changed over time?

As of September 2025, prices for Boston to Kathmandu flights are approximately 3% 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

Direct flights

None
There are no direct flights from Boston to Kathmandu. There are no popular flight routes from Boston to Kathmandu.
Search flight deals

  • 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 35m 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 $769Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights
EmiratesPriceFrom $1,050Free CancellationRating
8.1
3,339 reviews
Search Emirates flights
IndiGoPriceFrom $1,176Free CancellationRating
6.9
484 reviews
Search IndiGo flights
Qatar AirwaysPriceFrom $1,236Free CancellationRating
7.4
3,622 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,295Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights
Etihad AirwaysPriceFrom $1,437Free CancellationRating
7.4
1,251 reviews
Search Etihad Airways flights
SWISSPriceFrom $1,599Free CancellationRating
7.6
1,737 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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