$624 Cheap Flights from Boston (BOS) to Kathmandu (KTM)

View $624 flight on Sat, Aug 23, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from Boston to Kathmandu (BOS-KTM)

Prices were available within the past 7 days and start at $624 for one-way flights and $843 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Mon, Jan 5 - Sat, Feb 7
BOS
Boston
KTM
Kathmandu
$843 Roundtrip, just found
$843
Roundtrip
just found
Select Cathay Pacific flight, departing Mon, Jan 5 from Boston to Kathmandu, returning Sat, Feb 7, priced at $843 just found
JetBlue Airways
Tue, Sep 2 - Sat, Sep 20
BOS
Boston
KTM
Kathmandu
$948 Roundtrip, found 10 hours ago
$948
Roundtrip
found 10 hours ago
Select JetBlue Airways flight, departing Tue, Sep 2 from Boston to Kathmandu, returning Sat, Sep 20, priced at $948 found 10 hours ago
JetBlue Airways
Sat, Nov 8 - Wed, Dec 3
BOS
Boston
KTM
Kathmandu
$961 Roundtrip, found 5 days ago
$961
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Nov 8 from Boston to Kathmandu, returning Wed, Dec 3, priced at $961 found 5 days ago
JetBlue Airways
Tue, Sep 2 - Tue, Sep 23
BOS
Boston
KTM
Kathmandu
$962 Roundtrip, found 3 days ago
$962
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Sep 2 from Boston to Kathmandu, returning Tue, Sep 23, priced at $962 found 3 days ago
JetBlue Airways
Tue, Sep 2 - Sat, Sep 20
BOS
Boston
KTM
Kathmandu
$966 Roundtrip, found 10 hours ago
$966
Roundtrip
found 10 hours ago
Select JetBlue Airways flight, departing Tue, Sep 2 from Boston to Kathmandu, returning Sat, Sep 20, priced at $966 found 10 hours ago
JetBlue Airways
Sat, Aug 9 - Sun, Sep 7
BOS
Boston
KTM
Kathmandu
$968 Roundtrip, found 2 days ago
$968
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Sat, Aug 9 from Boston to Kathmandu, returning Sun, Sep 7, priced at $968 found 2 days ago
JetBlue Airways
Sun, Aug 31 - Tue, Sep 30
BOS
Boston
KTM
Kathmandu
$980 Roundtrip, found 1 day ago
$980
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sun, Aug 31 from Boston to Kathmandu, returning Tue, Sep 30, priced at $980 found 1 day ago
Singapore Airlines
Mon, Feb 2 - Mon, Mar 2
BOS
Boston
KTM
Kathmandu
$1,299 Roundtrip, found 6 days ago
$1,299
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Mon, Feb 2 from Boston to Kathmandu, returning Mon, Mar 2, priced at $1,299 found 6 days ago
Etihad Airways
Sun, Nov 23 - Tue, Dec 23
BOS
Boston
KTM
Kathmandu
$1,388 Roundtrip, found 15 hours ago
$1,388
Roundtrip
found 15 hours ago
Select Etihad Airways flight, departing Sun, Nov 23 from Boston to Kathmandu, returning Tue, Dec 23, priced at $1,388 found 15 hours ago
Qatar Airways
Sun, Aug 31 - Thu, Nov 27
BOS
Boston
KTM
Kathmandu
$1,413 Roundtrip, found 1 hour ago
$1,413
Roundtrip
found 1 hour ago
Select Qatar Airways flight, departing Sun, Aug 31 from Boston to Kathmandu, returning Thu, Nov 27, priced at $1,413 found 1 hour ago

Find the cheapest month to fly from Boston (BOS) to Kathmandu (KTM)

September is typically the cheapest month to fly

From $842 - $1,896 per traveler.

Graph displaying average flight prices per month

Alternative airports near Kathmandu

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tribhuvan Intl. KTM. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $1,502
KTM
Tribhuvan Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $1,502
Flights from Boston (BOS) to Kathmandu (KTM)
Origin airport
Logan Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, KLM, Korean Air, Malaysia Airlines, Qatar Airways, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$842
Distance
7366 mi

Boston to Kathmandu Flights

The cheapest times to fly from Boston to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Kathmandu are during the month of January. You can find some of the cheapest flights from Boston to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Kathmandu

Sunday is one of the best days to book for cheap flights from Boston to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Kathmandu in 2025. You can also book with separate airlines for your outbound and return journeys, from $624 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM) cost?
Discover the latest flight deals from BOS to KTM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BOS to KTM?
The cheapest flights from BOS to KTM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOS to KTM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOS to KTM. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM)?
Nonstop flights from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOS to KTM?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM)?
To arrive at Tribhuvan Intl. Airport (KTM) without delays, pick a flight that takes off from Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM) last-minute?
Last-minute bookings from BOS to KTM are usually more expensive. To secure the lowest prices, start looking for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a BOS to KTM flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to KTM flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of travel planning. Simply pick your flights and select from our extensive range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Tribhuvan Intl. Airport (KTM)?
In most cases, you can cancel or modify your BOS to KTM flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further details, head to our Customer Service portal.

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*Available to One Key members.