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Cheap flights from Boston to Kathmandu from $557

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 7/30. 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
11:05 pm - 6:10 pm
BOS
-
KTM
33h 20m
2 stops
Multiple Airlines Logo
1:15 pm - 2:10 pm
KTM
-
BOS
58h 40m
3 stops
$1,254Multiple Airlines
Mon, May 25 - Mon, Jun 8
Multiple Airlines Logo
11:05 pm - 12:50 pm
BOS
-
KTM
28h 00m
2 stops
Multiple Airlines Logo
8:10 am - 2:10 pm
KTM
-
BOS
39h 45m
2 stops
$1,257Multiple Airlines
Tue, Jun 9 - Tue, Jul 14
Multiple Airlines Logo
11:05 pm - 7:50 pm
BOS
-
KTM
35h 00m
2 stops
Multiple Airlines Logo
8:50 pm - 2:10 pm
KTM
-
BOS
51h 05m
2 stops
$1,259Multiple Airlines
Mon, May 25 - Mon, Jun 8
Multiple Airlines Logo
11:05 pm - 6:10 pm
BOS
-
KTM
33h 20m
2 stops
Multiple Airlines Logo
1:25 pm - 2:10 pm
KTM
-
BOS
58h 30m
2 stops
$1,265Multiple Airlines
Wed, Jun 3 - Wed, Jun 17
Multiple Airlines Logo
4:25 pm - 6:10 pm
BOS
-
KTM
40h 00m
2 stops
Multiple Airlines Logo
1:25 pm - 2:40 pm
KTM
-
BOS
35h 00m
2 stops
$1,285Multiple Airlines
Mon, Jun 22 - Sun, Jul 12
Multiple Airlines Logo
11:05 pm - 12:50 pm
BOS
-
KTM
28h 00m
2 stops
Multiple Airlines Logo
1:25 pm - 2:10 pm
KTM
-
BOS
34h 30m
2 stops
$1,299Multiple Airlines
Thu, May 28 - Thu, Jun 18
Multiple Airlines Logo
11:05 pm - 6:10 pm
BOS
-
KTM
33h 20m
2 stops
Multiple Airlines Logo
1:25 pm - 2:10 pm
KTM
-
BOS
34h 30m
2 stops
$1,300Multiple Airlines
Tue, May 26 - Wed, Jun 10
Multiple Airlines Logo
5:05 pm - 6:10 pm
BOS
-
KTM
39h 20m
3 stops
Multiple Airlines Logo
8:10 am - 1:40 pm
KTM
-
BOS
63h 15m
3 stops
$1,301Multiple Airlines
Fri, May 29 - Tue, Jun 30
Multiple Airlines Logo
11:05 pm - 9:45 am
BOS
-
KTM
24h 55m
1 stop
Multiple Airlines Logo
1:25 pm - 2:10 pm
KTM
-
BOS
34h 30m
2 stops
$1,313Multiple Airlines
Tue, Jun 9 - Tue, Jul 14
Multiple Airlines Logo
11:05 pm - 9:45 am
BOS
-
KTM
24h 55m
1 stop
Multiple Airlines Logo
1:25 pm - 2:10 pm
KTM
-
BOS
58h 30m
2 stops
$1,335Multiple Airlines
Tue, May 26 - Wed, Jun 10

Emirates flights from Boston to Kathmandu

Our best Emirates deals on Boston to Kathmandu flight tickets
Emirates
Aug 3
BOS11:05 pmBoston Logan Intl
23h 15m
1 stop
KTM8:05 amKathmandu Tribhuvan
Sep 2
KTM3:35 pmKathmandu Tribhuvan
32h 20m
1 stop
BOS2:10 pmBoston Logan Intl
$1,471
Emirates
Jun 4
BOS11:05 pmBoston Logan Intl
38h 45m
1 stop
KTM11:35 pmKathmandu Tribhuvan
Jun 23
KTM9:05 amKathmandu Tribhuvan
38h 50m
1 stop
BOS2:10 pmBoston Logan Intl
$1,496
Emirates
May 26
BOS11:05 pmBoston Logan Intl
38h 45m
1 stop
KTM11:35 pmKathmandu Tribhuvan
Jun 10
KTM7:55 pmKathmandu Tribhuvan
28h 00m
1 stop
BOS2:10 pmBoston Logan Intl
$1,517

IndiGo flights from Boston to Kathmandu

Our best IndiGo deals on Boston to Kathmandu flight tickets
IndiGo
May 18
BOS9:50 pmBoston Logan Intl
32h 05m
2 stops
KTM3:40 pmKathmandu Tribhuvan
May 26
KTM4:40 pmKathmandu Tribhuvan
37h 00m
2 stops
BOS7:55 pmBoston Logan Intl
$1,762
IndiGo
May 18
BOS9:50 pmBoston Logan Intl
32h 05m
2 stops
KTM3:40 pmKathmandu Tribhuvan
May 26
KTM3:10 pmKathmandu Tribhuvan
38h 30m
3 stops
BOS7:55 pmBoston Logan Intl
$1,769
IndiGo
May 17
BOS9:50 pmBoston Logan Intl
30h 35m
3 stops
KTM2:10 pmKathmandu Tribhuvan
May 29
KTM3:10 pmKathmandu Tribhuvan
38h 30m
3 stops
BOS7:55 pmBoston Logan Intl
$1,777

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 May 15, 2026.
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

Cheapest round-trip

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 5/25

11:05 pm-6:10 pm

2 stops33h 20m

Kathmandu Tribhuvan

Mon 6/8

1:15 pm-2:10 pm

3 stops58h 40m

$1,254

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 6/9

11:05 pm-12:50 pm

2 stops28h 00m

Kathmandu Tribhuvan

Tue 7/14

8:10 am-2:10 pm

2 stops39h 45m

$1,257

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 5/25

11:05 pm-7:50 pm

2 stops35h 00m

Kathmandu Tribhuvan

Mon 6/8

8:50 pm-2:10 pm

2 stops51h 05m

$1,259

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Wed 6/3

11:05 pm-6:10 pm

2 stops33h 20m

Kathmandu Tribhuvan

Wed 6/17

1:25 pm-2:10 pm

2 stops58h 30m

$1,265

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Mon 6/22

4:25 pm-6:10 pm

2 stops40h 00m

Kathmandu Tribhuvan

Sun 7/12

1:25 pm-2:40 pm

2 stops35h 00m

$1,285

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Thu 5/28

11:05 pm-12:50 pm

2 stops28h 00m

Kathmandu Tribhuvan

Thu 6/18

1:25 pm-2:10 pm

2 stops34h 30m

$1,299

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 5/26

11:05 pm-6:10 pm

2 stops33h 20m

Kathmandu Tribhuvan

Wed 6/10

1:25 pm-2:10 pm

2 stops34h 30m

$1,300

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Fri 5/29

5:05 pm-6:10 pm

3 stops39h 20m

Kathmandu Tribhuvan

Tue 6/30

8:10 am-1:40 pm

3 stops63h 15m

$1,301
Quickest round-trip

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 6/9

11:05 pm-9:45 am

1 stop24h 55m

Kathmandu Tribhuvan

Tue 7/14

1:25 pm-2:10 pm

2 stops34h 30m

$1,313

BostonKathmandu

BOS - KTM

BOSKTM

Boston Logan Intl

Tue 5/26

11:05 pm-9:45 am

1 stop24h 55m

Kathmandu Tribhuvan

Wed 6/10

1:25 pm-2:10 pm

2 stops58h 30m

$1,335

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 typical price of a round-trip flight between Boston and Kathmandu?

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 $1,322.

How far in advance should I book a flight from Boston 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 $1,448 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 $1,148 on momondo.

Can stopping save me money on Boston to Kathmandu flights?

You could potentially save up to 6% on your flight if you consider stops on a Boston to Kathmandu flight.

How have Boston to Kathmandu flight prices changed over time?

As of May 2026, prices for Boston to Kathmandu flights are approximately 17% 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

26h 05m

Direct flights

None
The fastest flight from Boston to Kathmandu takes 26h 05m
There are no direct flights from Boston to Kathmandu. There are no popular flight routes from Boston to Kathmandu.
Search flight deals

Frequently asked questions about flying from Boston to Kathmandu

  • 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. 26h 05m 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 $753Free CancellationRating
7.6
1,331 reviews
Search Cathay Pacific flights
IndiGoPriceFrom $977Free CancellationRating
6.8
559 reviews
Search IndiGo flights
Air IndiaPriceFrom $1,017Free CancellationRating
5.5
2,957 reviews
Search Air India flights
EmiratesPriceFrom $1,050Free CancellationRating
8.1
3,572 reviews
Search Emirates flights
Turkish AirlinesPriceFrom $1,186Free CancellationRating
7.4
4,368 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,266Free CancellationRating
7.4
3,725 reviews
Search Qatar Airways flights
SWISSPriceFrom $1,598Free CancellationRating
7.5
1,946 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
Air India