$244 Cheap Flights from Kathmandu (KTM) to Siddharthanagar (BWA)

View $244 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 $244 for one-way flights and $466 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hahn Air Systems
Fri, Aug 8 - Fri, Aug 15
KTM
Kathmandu
BWA
Siddharthanagar
$466 Roundtrip, found 10 hours ago
$466
Roundtrip
found 10 hours ago
Select Hahn Air Systems flight, departing Fri, Aug 8 from Kathmandu to Siddharthanagar, returning Fri, Aug 15, priced at $466 found 10 hours ago
Hahn Air Systems
Fri, Aug 8 - Sat, Aug 9
KTM
Kathmandu
BWA
Siddharthanagar
$474 Roundtrip, found 15 hours ago
$474
Roundtrip
found 15 hours ago
Select Hahn Air Systems flight, departing Fri, Aug 8 from Kathmandu to Siddharthanagar, returning Sat, Aug 9, priced at $474 found 15 hours ago
Hahn Air Systems
Thu, Aug 21 - Mon, Aug 25
KTM
Kathmandu
BWA
Siddharthanagar
$475 Roundtrip, found 4 hours ago
$475
Roundtrip
found 4 hours ago
Select Hahn Air Systems flight, departing Thu, Aug 21 from Kathmandu to Siddharthanagar, returning Mon, Aug 25, priced at $475 found 4 hours ago
Hahn Air Systems
Sat, Aug 16 - Wed, Aug 20
KTM
Kathmandu
BWA
Siddharthanagar
$476 Roundtrip, found 5 days ago
$476
Roundtrip
found 5 days ago
Select Hahn Air Systems flight, departing Sat, Aug 16 from Kathmandu to Siddharthanagar, returning Wed, Aug 20, priced at $476 found 5 days ago

Alternative airports near Siddharthanagar

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

Select flight to Gautam Buddha BWA. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $466
BWA
Gautam Buddha
CheapestClosest
Average driving time to city center4 min
Flights from $466
0
Flights from Kathmandu (KTM) to Siddharthanagar (BWA)
Origin airport
Tribhuvan Intl.
Destination airport
Gautam Buddha
Airlines serving
Hahn Air Systems
Roundtrip price
$466
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 $244 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?
Lock in a cheap one-way flight from $244 or cheap return flight from $466 from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
August is the most affordable month to fly from KTM to BWA. Timing your trip outside of the busy season is often the key to better flight prices.
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 Tribhuvan Intl. Airport (KTM) to Gautam Buddha Airport (BWA)?
While prices may vary depending on when you travel, Nepal Airlines and Shree Airlines are go-to choices for flights between Tribhuvan Intl. Airport (KTM) and Gautam Buddha Airport (BWA). You can also compare carriers on Expedia and use the "Sort by" filter to find the cheapest fare for your KTM to BWA flight.
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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*Available to One Key members.