BIR to KTM, Biratnagar Airport to Tribhuvan International Airport Cheap Flights

Based on HopeGoo data, Yetiairlines offers one-way fares as low as US$84 on Cheapest nonstop routes (e.g. BIR to KTM on Thu, Mar 12), while Yetiairlines offers Cheapest nonstop round-trips from US$166 departing on Sat, Mar 7 and returning on Tue, Mar 10.

At the moment, you can catch a nonstop flight from Biratnagar to Kathmandu with the following airlines, including: Yetiairlines Buddha Air Selected airlines are based on historical data collected from flight bookings users made on HopeGoo within the last 90 days.

It takes about 40 minutes to fly from Biratnagar to Kathmandu.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Biratnagar to Kathmandu is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on HopeGoo data in the past 4 weeks, there is 57 flight per week flying from Biratnagar to Kathmandu. You can check the weekly schedule for popular airlines on this route below: Buddha Air: S/M/T/W/T/F/S -- U4708 (15:27) Buddha Air: S/M/T/W/T/F/S -- U4716 (19:31) Buddha Air: S/M/T/W/T/F/S -- U4706 (14:07)

To find best deals on flights from Biratnagar to Kathmandu, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Mar 12, with one-way flights priced at just US$84. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Yetiairlines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Kathmandu travel is around January. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Biratnagar to Kathmandu is August, when demand for travel is lower.

After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Biratnagar to Kathmandu on March 19, 2026 with Yetiairlines, with prices starting at US$84.

You can land at any one of the following hubs in Kathmandu, with Biratnagar Airport to Tribhuvan International Airport (BIR-KTM) is by far the most common option on this route: Tribhuvan International Airport (KTM).

The time difference between Kathmandu and Biratnagar is 0h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your HopeGoo, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.