Cheapest airlines flights from Kathmandu to Biratnagar

You can choose from 2 airlines that fly from Kathmandu to Biratnagar, including Yetiairlines, Buddha Air, Yetiairlines has lowest fares on this route.
Yetiairlines logo Yetiairlines
Buddha Air logo Buddha Air
Airlines are determined based on actual purchased flight tickets from Kathmandu to Biratnagar according to previous 12 months data from Trip.com.

Search for direct flights from Kathmandu to Biratnagar in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$76, and round-trip direct flights start at US$163.

Displayed flight fares from Kathmandu to Biratnagar are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Kathmandu to Biratnagar Flight Details

The distance between Kathmandu and Biratnagar is about 232.13 km. The average flying time from Kathmandu to Biratnagar is around 38 minutes. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is September.

Cheapest one-way flight priceUS$76
Cheapest return ticket priceUS$163
Cheapest monthSeptember
Peak season for travelJanuary
Flight distance232.13 km
Average flight time38 minutes
Popular airlineYetiairlines
Flight statistics for the Kathmandu–Biratnagar route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Kathmandu to Biratnagar

Which month has the cheapest one-way flights from Kathmandu to Biratnagar?

The average price of one-way flights from Kathmandu to Biratnagar purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Kathmandu to Biratnagar is Jan, with an average price of US$90; while the month with the highest flight price is usually Dec, with an average price of up to US$105.

US$105
US$98
US$90
US$83
    Cheapest
  • US$96
    Feb
  • US$99
    Mar
  • US$101
    Apr
  • US$99
    May
  • US$93
    Jun
  • US$100
    Jul
  • US$97
    Aug
  • US$93
    Sep
  • US$98
    Oct
  • US$100
    Nov
  • US$105
    Dec
  • US$90
    Jan

What is the cheapest day of the week to fly from Kathmandu to Biratnagar?

Average weekly flight prices from Kathmandu to Biratnagar by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Kathmandu to Biratnagar is Fri, with average prices lower than on other days. Avoid Tue, as prices are usually highest then.

US$102
US$98
US$94
US$90
    Cheapest
  • US$97
    Mon
  • US$102
    Tue
  • US$97
    Wed
  • US$97
    Thu
  • US$94
    Fri
  • US$97
    Sat
  • US$98
    Sun

Frequently Asked Questions

  • What are the cheapest flights from Kathmandu to Biratnagar (KTM-BIR)?

    Based on Trip.com data, Yetiairlines offers one-way fares as low as US$76 on Cheapest nonstop routes (e.g. KTM to BIR on Fri, Feb 20), while Yetiairlines offers Cheapest nonstop round-trips from US$163 departing on Sun, Feb 15 and returning on Sun, Feb 22.
  • At the moment, you can catch a nonstop flight from Kathmandu to Biratnagar with the following airlines, including: Yetiairlines Buddha Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 38 minutes to fly from Kathmandu to Biratnagar.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Kathmandu to Biratnagar 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 Trip.com data in the past 4 weeks, there is 54 flight per week flying from Kathmandu to Biratnagar. You can check the weekly schedule for popular airlines on this route below: Buddha Air: S/M/T/W/T/F/S -- U4701 (11:17) Buddha Air: S/M/T/W/T/F/S -- U4715 (21:26) Buddha Air: S/M/T/W/T/F/S -- U4707 (18:16)
  • To find best deals on flights from Kathmandu to Biratnagar, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Feb 20, with one-way flights priced at just US$76.
    · 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 Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Biratnagar travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Kathmandu to Biratnagar is September, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Kathmandu to Biratnagar on February 20, 2026 with Yetiairlines, with prices starting at US$166.
  • You can land at any one of the following hubs in Biratnagar, with Tribhuvan International Airport to Biratnagar Airport (KTM-BIR) is by far the most common option on this route: Biratnagar Airport (BIR).
  • The time difference between Biratnagar and Kathmandu 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 booking, 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.

Trip.com Airline Insights on Flights from Kathmandu to Biratnagar

Which airline operates the most flights from Kathmandu to Biratnagar?

Total flights from Kathmandu to Biratnagar across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Buddha Air operates the most frequent flights from Kathmandu to Biratnagar, with 61 flights per week.

27
38
50
61
Buddha Air
61
Buddha Air
Yetiairlines
44
Yetiairlines
Kabo Air
38
Kabo Air

How many flights fly from Kathmandu to Biratnagar daily?

The data is based on the flight numbers for each day of the week from Kathmandu to Biratnagar within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Kathmandu to Biratnagar is the highest on Friday and the lowest on Wednesday.

91
83
74
66
Highest
75
Mon
77
Tue
74
Wed
74
Thu
91
Fri
90
Sat
91
Sun