Netaji Subhas Chandra Bose International Airport to Bangkok Flights from HKD 76 incl. tax

Based on HopeGoo data, Thai Vietjet Air offers one-way fares as low as US$69 on Cheapest nonstop routes (e.g. CCU to BKK on Thu, Mar 26), while Thai Vietjet Air offers Cheapest nonstop round-trips from US$134 departing on Thu, Mar 12 and returning on Wed, Mar 18.

At the moment, you can catch a nonstop flight from Kolkata to Bangkok with the following airlines, including: Thai Vietjet Air Thai Lion Air IndiGo Bhutan Airlines Thai AirAsia Selected airlines are based on historical data collected from flight bookings users made on HopeGoo within the last 90 days.

It takes about 2 hours 34 minutes to fly from Kolkata to Bangkok.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Kolkata to Bangkok 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 15 flight per week flying from Kolkata to Bangkok. You can check the weekly schedule for popular airlines on this route below: Thai AirAsia: S/M/T/W/T/F/S -- FD121 (00:48)

To find best deals on flights from Kolkata to Bangkok, 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 26, with one-way flights priced at just US$69. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Thai Vietjet Air. · 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 Bangkok travel is around July. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Kolkata to Bangkok is September, when demand for travel is lower.

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Kolkata to Bangkok on February 28, 2026 with Thai Lion Air, with prices starting at US$83.

You can land at any one of the following hubs in Bangkok, with Netaji Subhas Chandra Bose International Airport to Suvarnabhumi Airport (CCU-BKK) is by far the most common option on this route: Suvarnabhumi Airport (BKK) Don Mueang International Airport (DMK).

The time difference between Bangkok and Kolkata is 1h.

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.