Cheap flights from Kolkata to Mumbai from ₹ 5,948

The cheapest month to fly to Mumbai from Kolkata is in August. Flight prices, which tend to average around ₹ 10,361, are often lower during this time because this is during the off-season. If you are unable to visit Mumbai during the month of August, then departing from Kolkata during the month July is also very affordable. Most momondo users find prices during this month for around ₹ 10,361.

The cheapest day to depart on your flight to Mumbai is on a Saturday when prices can be found for as low as ₹ 14,173. This is often the case because there is less demand to fly during this day of the week. Flights from Kolkata to Mumbai on a Monday will generally be more expensive and average around ₹ 32,236. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the morning is the cheapest time of day to fly from Kolkata to Mumbai when you can find flight prices for as low as ₹ 13,877. Flying to Mumbai in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive, with an average ticket price of ₹ 49,115.

Fly from Kolkata Netaji S. Chandra to Mumbai Chhatrapati Shivaji Intl for the best Kolkata Netaji S. Chandra - Mumbai Chhatrapati Shivaji Intl flight prices

You are more likely to see cheaper flights to Mumbai from Kolkata when booking weeks ahead of your departure date. In general, you can expect to find flights to Mumbai for around ₹ 12,887 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mumbai from Kolkata for as low as ₹ 10,457 on momondo.

There are 4 cabin classes available to choose from on Kolkata to Mumbai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air India Express and IndiGo are the most popular carriers operating from Kolkata Netaji S. Chandra to Mumbai Chhatrapati Shivaji Intl

IndiGo, Akasa Air and SpiceJet are the top three most popular airlines that fly to Mumbai from Kolkata according to our data. IndiGo is the first choice among our users, with 49% of people opting to fly with this airline when travelling to Mumbai. Keep in mind that there are 4 different airlines that fly to Mumbai on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between Kolkata and Mumbai have experienced a delay on any given week. The average delay length over the past 12 months has been 115 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, IndiGo have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

The number of flights available between Kolkata and Mumbai is 34 per day as of May 2026. The most frequent departure time is 18:00, with 41% of daily flights leaving in the evening.

244 flights are operational weekly from Kolkata to Mumbai as of May 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.