Search cheap flights from New Delhi to Biratnagar in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$143, and round-trip tickets start at US$327.

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

New Delhi to Biratnagar Flight Details

The distance between New Delhi and Biratnagar is about 1,028.29 km. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is August.

Cheapest one-way flight priceUS$143
Cheapest return ticket priceUS$327
Cheapest monthAugust
Peak season for travelJanuary
Flight distance1,028.29 km
Flight statistics for the New Delhi–Biratnagar route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from New Delhi to Biratnagar (DEL-BIR)?

    Based on Trip.com data, Bhutan Airlines offers one-way fares as low as US$143 on Cheapest nonstop routes (e.g. DEL to BIR on Fri, Feb 20), while IndiGo offers Cheapest nonstop round-trips from US$327 departing on Mon, Feb 16 and returning on Tue, Feb 17.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from New Delhi 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.
  • To find best deals on flights from New Delhi 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$143.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Bhutan Airlines.
    · 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 New Delhi to Biratnagar is August, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from New Delhi to Biratnagar on February 14, 2026 with IndiGo, with prices starting at US$342.
  • The time difference between Biratnagar and New Delhi 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.