The Kolkata to Delhi route is one of India's busiest domestic air corridors, connecting the cultural capital of eastern India with the national capital and northern India's main aviation hub. Non-stop flights depart from Netaji Subhas Chandra Bose International Airport (CCU) and arrive at Indira Gandhi International Airport (DEL), with a flight time of around 2 hours 15 minutes. IndiGo operates the most frequent services on this route. One-way fares start from ₹5,520, 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 Delhi?
On this busy business route, May tends to see the lowest fares, starting from ₹5,520. 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 Delhi flight cost?
One-way flights from Kolkata to Delhi typically cost between ₹5,520 and ₹6,560. 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 Delhi 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 Delhi 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 Delhi?
Yes, non-stop flights operate between Netaji Subhas Chandra Bose International Airport and Indira Gandhi International Airport. IndiGo runs the most frequent non-stop service, with a flight time of about 2 hours 15 minutes.
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Last updated: April 2026