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Cheap flights from Boston to Kathmandu from $392

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 1/17. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 pm - 9:50 am
BOS
-
KTM
27h 05m2 stops
Multiple Airlines Logo
2:55 pm - 2:10 pm
KTM
-
BOS
34h 00m3 stops
$1,057Multiple Airlines
Wed, Feb 4 - Wed, Feb 25
Multiple Airlines Logo
3:40 pm - 9:05 am
BOS
-
KTM
30h 40m3 stops
Multiple Airlines Logo
9:05 pm - 2:10 pm
KTM
-
BOS
27h 50m2 stops
$1,059Multiple Airlines
Sat, Feb 7 - Wed, Feb 25
Multiple Airlines Logo
8:00 pm - 12:15 pm
BOS
-
KTM
29h 30m2 stops
Multiple Airlines Logo
5:10 pm - 2:10 pm
KTM
-
BOS
31h 45m2 stops
$1,060Multiple Airlines
Fri, Jan 9 - Fri, Feb 6
Multiple Airlines Logo
8:00 pm - 4:10 pm
BOS
-
KTM
33h 25m2 stops
Multiple Airlines Logo
2:00 pm - 2:55 pm
KTM
-
BOS
34h 40m3 stops
$1,061Multiple Airlines
Fri, Feb 6 - Thu, Apr 16
Multiple Airlines Logo
3:40 pm - 6:35 am
BOS
-
KTM
28h 10m3 stops
Multiple Airlines Logo
2:55 pm - 2:10 pm
KTM
-
BOS
34h 00m3 stops
$1,064Multiple Airlines
Sun, Jan 18 - Fri, Jan 30
Multiple Airlines Logo
3:40 pm - 12:15 am
BOS
-
KTM
21h 50m2 stops
Multiple Airlines Logo
2:45 pm - 2:10 pm
KTM
-
BOS
34h 10m3 stops
$1,065Multiple Airlines
Tue, Feb 10 - Mon, Mar 2
Multiple Airlines Logo
3:40 pm - 6:35 am
BOS
-
KTM
28h 10m3 stops
Multiple Airlines Logo
2:55 pm - 2:10 pm
KTM
-
BOS
34h 00m3 stops
$1,068Multiple Airlines
Wed, Jan 28 - Thu, Feb 12
Multiple Airlines Logo
3:40 pm - 1:45 pm
BOS
-
KTM
35h 20m3 stops
Multiple Airlines Logo
1:45 pm - 3:10 pm
KTM
-
BOS
35h 10m2 stops
$1,071Multiple Airlines
Tue, Feb 10 - Tue, Mar 24
Multiple Airlines Logo
8:00 pm - 4:10 pm
BOS
-
KTM
33h 25m2 stops
Multiple Airlines Logo
1:45 pm - 1:55 pm
KTM
-
BOS
58h 55m2 stops
$1,074Multiple Airlines
Sun, Jan 25 - Sat, Feb 21
Multiple Airlines Logo
3:40 pm - 9:05 am
BOS
-
KTM
30h 40m3 stops
Multiple Airlines Logo
2:45 pm - 2:10 pm
KTM
-
BOS
34h 10m3 stops
$1,077Multiple Airlines
Mon, Jan 19 - Wed, Feb 25

IndiGo flights from Boston to Kathmandu

Our best IndiGo deals on Boston to Kathmandu flight tickets
IndiGo
Jan 11
BOS8:00 pmBoston Logan Intl
29h 30m
2 stops
KTM12:15 pmKathmandu Tribhuvan
Feb 5
KTM1:15 pmKathmandu Tribhuvan
39h 35m
2 stops
BOS6:05 pmBoston Logan Intl
$1,085
Find similar
IndiGo
Jan 25
BOS8:00 pmBoston Logan Intl
27h 05m
2 stops
KTM9:50 amKathmandu Tribhuvan
Mar 25
KTM2:30 pmKathmandu Tribhuvan
38h 20m
2 stops
BOS7:05 pmBoston Logan Intl
$1,090
Find similar
IndiGo
Jan 10
BOS8:00 pmBoston Logan Intl
29h 30m
2 stops
KTM12:15 pmKathmandu Tribhuvan
Jan 31
KTM5:10 pmKathmandu Tribhuvan
35h 40m
2 stops
BOS6:05 pmBoston Logan Intl
$1,092
Find similar

Qatar Airways flights from Boston to Kathmandu

Our best Qatar Airways deals on Boston to Kathmandu flight tickets
Qatar Airways
Dec 7
BOS8:45 pmBoston Logan Intl
24h 25m
1 stop
KTM7:55 amKathmandu Tribhuvan
Dec 23
KTM5:40 pmKathmandu Tribhuvan
31h 25m
1 stop
BOS2:20 pmBoston Logan Intl
$1,648
Find similar
Qatar Airways
Dec 10
BOS8:45 pmBoston Logan Intl
32h 55m
1 stop
KTM4:25 pmKathmandu Tribhuvan
Dec 18
KTM5:40 pmKathmandu Tribhuvan
31h 25m
1 stop
BOS2:20 pmBoston Logan Intl
$1,799
Find similar
Qatar Airways
Dec 11
BOS8:45 pmBoston Logan Intl
32h 55m
1 stop
KTM4:25 pmKathmandu Tribhuvan
Dec 19
KTM9:10 amKathmandu Tribhuvan
39h 55m
1 stop
BOS2:20 pmBoston Logan Intl
$1,914
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 December 4, 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

Wed 2/4

8:00 pm-9:50 am

2 stops27h 05m

Kathmandu Tribhuvan

Wed 2/25

2:55 pm-2:10 pm

3 stops34h 00m

$1,057

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sat 2/7

3:40 pm-9:05 am

3 stops30h 40m

Kathmandu Tribhuvan

Wed 2/25

9:05 pm-2:10 pm

2 stops27h 50m

$1,059

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 1/9

8:00 pm-12:15 pm

2 stops29h 30m

Kathmandu Tribhuvan

Fri 2/6

5:10 pm-2:10 pm

2 stops31h 45m

$1,060

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 2/6

8:00 pm-4:10 pm

2 stops33h 25m

Kathmandu Tribhuvan

Thu 4/16

2:00 pm-2:55 pm

3 stops34h 40m

$1,061

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 1/18

3:40 pm-6:35 am

3 stops28h 10m

Kathmandu Tribhuvan

Fri 1/30

2:55 pm-2:10 pm

3 stops34h 00m

$1,064

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 2/10

3:40 pm-12:15 am

2 stops21h 50m

Kathmandu Tribhuvan

Mon 3/2

2:45 pm-2:10 pm

3 stops34h 10m

$1,065

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 1/28

3:40 pm-6:35 am

3 stops28h 10m

Kathmandu Tribhuvan

Thu 2/12

2:55 pm-2:10 pm

3 stops34h 00m

$1,068

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 2/10

3:40 pm-1:45 pm

3 stops35h 20m

Kathmandu Tribhuvan

Tue 3/24

1:45 pm-3:10 pm

2 stops35h 10m

$1,071

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Sun 1/25

8:00 pm-4:10 pm

2 stops33h 25m

Kathmandu Tribhuvan

Sat 2/21

1:45 pm-1:55 pm

2 stops58h 55m

$1,074

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 1/19

3:40 pm-9:05 am

3 stops30h 40m

Kathmandu Tribhuvan

Wed 2/25

2:45 pm-2:10 pm

3 stops34h 10m

$1,077

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 $1,457 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 $1,161 on momondo.

How have Boston to Kathmandu flight prices changed over time?

As of December 2025, prices for Boston to Kathmandu flights are approximately 27% 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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Boston to Kathmandu takes 20h 45m
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. 21h 50m 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
1,084 reviews
Search Cathay Pacific flights
EmiratesPriceFrom $1,050Free CancellationRating
8.1
3,430 reviews
Search Emirates flights
IndiGoPriceFrom $1,054Free CancellationRating
6.9
502 reviews
Search IndiGo flights
Qatar AirwaysPriceFrom $1,262Free CancellationRating
7.4
3,678 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,298Free CancellationRating
7.3
4,077 reviews
Search Turkish Airlines flights
Etihad AirwaysPriceFrom $1,437Free CancellationRating
7.4
1,329 reviews
Search Etihad Airways flights
SWISSPriceFrom $1,599Free CancellationRating
7.5
1,804 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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Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways
Emirates
Cathay Pacific
IndiGo
Turkish Airlines
SWISS
Etihad Airways