The Kolkata to Mumbai route has an average round-trip fare of Rs 10,127, with September as the best month for travel. Fares range from Rs 7,928 (minimum) to Rs 31,990 (maximum), and prices vary greatly depending on booking timing and seasonality.
Departure: 2026-09-17 · in 7 days · Prices tracked live by Tripfik
As of September 2026, the cheapest one-way flight from Kolkata to Mumbai is ₹7,928, which is 14% below the 12-month average of ₹9,190.
Cheapest Kolkata to Mumbai flights
Under ₹8,746 = top 25% best fares on this route
Round-trip fares — Kolkata ↔ Mumbai
Booking at the right time saves up to ₹2,387 (23%) vs average RT price.
Best time to visit Mumbai from Kolkata
| Month | Typical OW fare | Verdict | Weather | Crowd |
|---|---|---|---|---|
| Sep CHEAPEST | ₹8,698 | Great value | Monsoon/Heavy Rain | Low |
| Oct | ₹9,051 | Average | Warm/Humid | Medium |
| Nov | ₹8,891 | Average | Pleasant/Dry | High |
| Dec | ₹8,838 | Average | Cool/Dry | High |
Mumbai — what to know
From Kolkata, Air India,Akasa Air,IndiGo,SpiceJet fly to Mumbai in 3h 4m, with non-stop options available.
The average round-trip fare from Kolkata to Mumbai is Rs 10,127, but fares can drop as low as Rs 7,928 over 12 months. High volatility in pricing suggests opportunities for cheaper flights during off-peak periods.
Other domestic flights from Kolkata
Kolkata to Mumbai — FAQ
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Last updated 10 Sep 2026 · Tripfik tracks live fares from all major Indian airports