$245 Cheap Flights from Kathmandu (KTM) to Siddharthanagar (BWA)

View $245 flight on Thu, Aug 21, 2025Opens in a new window

Popular airlines from Tribhuvan Intl. Airport (KTM) to Siddharthanagar (BWA-Gautam Buddha)

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Cheap Flights from Kathmandu to Siddharthanagar (KTM-BWA)

Prices were available within the past 7 days and start at $245 for one-way flights and $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hahn Air Systems
Sat, Aug 2 - Sat, Aug 9
KTM
Kathmandu
BWA
Siddharthanagar
$469 Roundtrip, found 4 days ago
$469
Roundtrip
found 4 days ago
Select Hahn Air Systems flight, departing Sat, Aug 2 from Kathmandu to Siddharthanagar, returning Sat, Aug 9, priced at $469 found 4 days ago
Hahn Air Systems
Wed, Aug 13 - Wed, Aug 20
KTM
Kathmandu
BWA
Siddharthanagar
$475 Roundtrip, just found
$475
Roundtrip
just found
Select Hahn Air Systems flight, departing Wed, Aug 13 from Kathmandu to Siddharthanagar, returning Wed, Aug 20, priced at $475 just found
Hahn Air Systems
Sat, Aug 16 - Wed, Aug 20
KTM
Kathmandu
BWA
Siddharthanagar
$476 Roundtrip, found 14 hours ago
$476
Roundtrip
found 14 hours ago
Select Hahn Air Systems flight, departing Sat, Aug 16 from Kathmandu to Siddharthanagar, returning Wed, Aug 20, priced at $476 found 14 hours ago
0
Flights from Kathmandu (KTM) to Siddharthanagar (BWA)
Origin airport
Tribhuvan Intl.
Destination airport
Gautam Buddha
Airlines serving
Hahn Air Systems
Roundtrip price
$468
Distance
119 mi

Kathmandu to Siddharthanagar Flights

The cheapest times to fly from Kathmandu to Siddharthanagar

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 Kathmandu to Siddharthanagar are during the month of August. You can find some of the cheapest flights from Kathmandu to Siddharthanagar with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kathmandu to Siddharthanagar

Sunday is one of the best days to book for cheap flights from Kathmandu to Siddharthanagar: 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 Kathmandu to Siddharthanagar

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 Kathmandu to Siddharthanagar in 2025. You can also book with separate airlines for your outbound and return journeys, from $245 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 Kathmandu to Siddharthanagar 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 Kathmandu to Siddharthanagar 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 Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA) cost?
Pick up cheap return fares starting from $478 from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Hahn Air flight leaving KTM on August 3 2025 and touching down at BWA. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from KTM to BWA?
The cheapest flights from KTM to BWA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
Take the express route to Gautam Buddha Airport (BWA). 4 carriers offer direct flights from Tribhuvan Intl. Airport (KTM), including:

  • Buddha Air
  • Yeti Airlines
  • Shree Airlines

What is the cheapest airline that flies from KTM to BWA?
Travel from KTM to BWA with Hahn Air. This carrier currently offers the cheapest one-way fare on this route, starting at $249. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from KTM on August 14 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
When taking off from Tribhuvan Intl. Airport (KTM), you can choose from an average of 17 daily direct flights to Gautam Buddha Airport (BWA).
What are the most popular departure times for flights from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
More travelers fly between KTM and BWA at 1 PM than at any other time of day. Prefer a quieter experience? Travel outside of rush hours and you could save on your ticket as well.
What day of the week has the most flights from KTM to BWA?
Friday has the most flights from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA). Consider jetting off on this day and you'll have the best chance of finding a schedule that works for you.
What is the earliest flight from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
Tribhuvan Intl. Airport (KTM)'s first flight to Gautam Buddha Airport (BWA) leaves at approximately 8:10AM UTC+5. With a travel time of 30m, you'll arrive at around 8:40AM UTC+5.
How long does it take to fly from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
Flights from KTM to BWA have an average travel time of 29 minutes. The distance between these two airports is 120 mi.
What is the best time to fly from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
Select a flight from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA) that leaves before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA) last-minute?
Booking your plane ticket from KTM to BWA just before your trip is generally more expensive. But if you're flexible with your travel dates and times, you could bag a cheap last-minute fare.
Can I cancel or change the date of my flight from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
In most instances, you can modify or cancel your KTM to BWA flight. However, there may be additional charges, especially if you booked 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, go to our Customer Service portal.

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