The Kolkata to Mumbai route is one of India's busiest domestic air corridors, connecting the cultural capital of eastern India with India's financial capital and busiest domestic airport. Non-stop flights depart from Netaji Subhas Chandra Bose International Airport (CCU) and arrive at Chhatrapati Shivaji Maharaj International Airport (BOM), with a flight time of around 2 hours 40 minutes. IndiGo operates the most frequent services on this route. One-way fares start from ₹6,427, though prices vary depending on the season, day of the week, and how far in advance you book. We track this route daily — check the price calendar below to find the cheapest dates.
Airlines on this route
Frequently Asked Questions
What is the cheapest month to fly from Kolkata to Mumbai?
On this busy business route, June tends to see the lowest fares, starting from ₹6,427. Competition between 6 airlines keeps prices competitive, but booking 4-6 weeks in advance still makes a noticeable difference.
How much does a Kolkata to Mumbai flight cost?
One-way flights from Kolkata to Mumbai typically cost between ₹6,427 and ₹10,263. Prices vary by season, airline, and how far in advance you book. Use our price calendar to spot the cheapest dates.
Which airline is cheapest for Kolkata to Mumbai flights?
With 6 carriers on this route, there's strong price competition. IndiGo and Air India generally have the lowest base fares, while Air India includes checked baggage and meals at a slightly higher price point. Budget carriers like Vistara run frequent sales worth watching.
How far in advance should I book Kolkata to Mumbai flights?
This is a high-frequency business route, so fares fluctuate often. Booking 4-6 weeks in advance generally gets you the best price. Avoid booking on Sunday evenings when business travellers push prices up for Monday departures.
Are there direct flights from Kolkata to Mumbai?
Yes, non-stop flights operate between Netaji Subhas Chandra Bose International Airport and Chhatrapati Shivaji Maharaj International Airport. IndiGo runs the most frequent non-stop service, with a flight time of about 2 hours 40 minutes.
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Last updated: April 2026