TL;DR — Kolkata to Delhi Flights in 2026
- Flight time: 2 hours 30 minutes to 2 hours 45 minutes (direct)
- Daily flights: 30+ non-stop departures from CCU to DEL
- Fare range: ₹4,500 (advance, off-peak) to ₹12,000 (festival/last-minute)
- Cheapest months: February, July, September
- Biggest fare spike: Durga Puja (October) — book 60–90 days ahead
- Compare all airlines on HappyFares for the lowest available price
The Kolkata–Delhi corridor is one of India’s busiest domestic air routes, with over 30 non-stop flights daily connecting the two cities. The route covers approximately 1,900 km, and with India’s civil aviation market hitting 152 million domestic passengers in FY2024-25 (DGCA, 2025), CCU–DEL remains a high-demand artery year-round. For West Bengal travellers heading to the capital — whether for work, government affairs, or family visits — understanding this route can mean saving thousands of rupees.
This guide covers airlines, fare trends, festival spikes, airport tips for both Kolkata’s NSCBI Airport and Delhi’s IGI, and the smartest way to book on HappyFares.
[INTERNAL-LINK: Kolkata airport guide → kolkata-airport-guide-2026]
Route Overview: CCU to DEL
The Kolkata to Delhi air route stretches roughly 1,900 km — long enough to justify a comfortable 2.5-hour flight, short enough that you rarely need a connecting service. All major carriers operate non-stop on this route, keeping fares competitive for most of the year.
Kolkata’s airport — Netaji Subhas Chandra Bose International Airport (IATA: CCU), also referred to as NSCBI Airport — sits about 17 km from Esplanade, the city’s central hub. The integrated terminal building handles both domestic and international departures under one roof. Kolkata Metro’s Orange Line (Line 6) now connects the airport to the city, cutting travel time significantly compared to road transport during peak hours.
At the Delhi end, flights arrive at Indira Gandhi International Airport (DEL). Low-cost carriers typically use Terminal 1 (T1), while Air India uses Terminal 3 (T3). The Airport Express Metro from T3 reaches central Delhi (Connaught Place) in about 20 minutes — a major convenience for travellers heading to South Delhi, Lutyens’ Delhi, or onward connections.
Which Airlines Fly Kolkata to Delhi?
Five airlines operate non-stop CCU–DEL flights daily, collectively providing one of the densest domestic schedules outside the Mumbai–Delhi corridor. According to DGCA schedules data (2025), IndiGo alone operates 10–12 daily departures, giving West Bengal travellers a flight every 1.5–2 hours throughout the day.
| Airline | Daily Non-Stop Flights (Approx.) | Delhi Terminal | Typical One-Way Fare |
|---|---|---|---|
| IndiGo | 10–12 | T1 / T3 | ₹4,500 – ₹10,000 |
| Air India | 4–5 | T3 | ₹5,000 – ₹12,000 |
| SpiceJet | 3–4 | T1 | ₹4,500 – ₹9,500 |
| Akasa Air | 3–4 | T1 | ₹4,500 – ₹9,000 |
| Air India Express | 2–3 | T1 | ₹4,500 – ₹9,000 |
Compare all of these simultaneously with a single search on HappyFares — departure times, fares, and available seat classes in one view.
[INTERNAL-LINK: How to get cheapest domestic flights → how-to-get-cheapest-flights-india-2026]
When Are Kolkata to Delhi Flights Cheapest?
Festival timing shapes this route more dramatically than almost any other domestic corridor. Kolkata has the most intense festival calendar in India — Durga Puja alone causes a fare surge comparable to what Christmas does to the Mumbai–Delhi route. DGCA fare trend data (2025) shows CCU–DEL fares rising 80–120% in the two weeks around Durga Puja compared to the monthly average.
| Month | Season / Demand | Typical One-Way Fare | Key Notes |
|---|---|---|---|
| January | Low–Moderate | ₹5,000 – ₹8,000 | Republic Day weekend spikes briefly |
| February | Low (cheapest) | ₹4,500 – ₹6,500 | Best month to book — low demand |
| March | Moderate | ₹5,000 – ₹7,500 | Holi week sees a brief spike |
| April–May | Moderate | ₹5,500 – ₹8,000 | Summer holidays push demand up |
| June | Low–Moderate | ₹5,000 – ₹7,000 | Monsoon lull begins |
| July | Low (cheapest) | ₹4,500 – ₹6,500 | Lowest fares of the year |
| August | Low | ₹4,500 – ₹7,000 | Independence Day weekend slightly higher |
| September | Low–Moderate | ₹4,500 – ₹7,000 | Third cheapest month overall |
| October | Peak — Durga Puja | ₹9,000 – ₹15,000+ | Book 60–90 days ahead or face extreme fares |
| November | High — Diwali | ₹8,000 – ₹12,000 | Diwali week is nearly as bad as Durga Puja |
| December | Moderate–High | ₹6,000 – ₹10,000 | Christmas–New Year stretch spikes sharply |
Why Durga Puja Crushes CCU Fares
Durga Puja is not just a festival — it’s a full Bengali cultural event lasting 5–7 days, during which millions of non-resident Bengalis return to Kolkata from Delhi, Mumbai, Bengaluru, and abroad. The reverse journey — Kolkata to Delhi after Puja ends — sees equally fierce demand. Flights book out weeks in advance. Airlines raise prices to reflect genuine capacity constraints, not just dynamic pricing algorithms.
[UNIQUE INSIGHT] The sharpest fare spike on CCU–DEL doesn’t happen on the Puja departure day — it happens on the return leg, typically 3–4 days after Mahasthami. Travellers who book that specific return date 90 days ahead consistently find fares 40–50% lower than those who book at the 30-day mark.
Festival Booking Rule
For Durga Puja and Diwali travel, set a fare alert on HappyFares and book the moment fares open — typically 90 days before departure. Waiting until 30 days ahead during these festivals almost guarantees paying ₹10,000+ for a ticket that could have been ₹5,500.
Kolkata Airport (CCU): Netaji Subhas Chandra Bose International
Kolkata’s Netaji Subhas Chandra Bose International Airport (NSCBI) is India’s fifth busiest airport by passenger traffic, handling approximately 22 million passengers annually (AAI, 2025). The integrated terminal building — opened in its current modern form in 2013 — processes both domestic and international departures, with separate departure halls for each.
Getting to CCU Airport
- Metro (Orange Line / Line 6): The most reliable option. The airport metro station connects to Salt Lake, EM Bypass, and eventually the city centre. Journey from Esplanade area takes 40–50 minutes. Fare is under ₹50.
- App-based cabs (Ola/Uber): From central Kolkata (Park Street, Esplanade), expect 40–60 minutes and ₹350–₹600 depending on traffic and time of day.
- Pre-paid taxi: Available outside arrivals. Pre-paid booths are inside the terminal for fixed-rate rides to major city zones.
Terminal Facilities at CCU
CCU has multiple lounges including the Air India Maharaja Lounge, Plaza Premium, and TFS lounges — accessible via business class tickets, Priority Pass, or eligible credit cards. Food courts, ATMs, currency exchange, duty-free retail, and Digi Yatra are all available. Arrive at least 90 minutes before domestic departure.
Delhi Airport (DEL): What CCU Arrivals Need to Know
Delhi IGI Airport is India’s busiest airport. Kolkata flights arrive at either T1 (IndiGo, SpiceJet, Akasa Air, Air India Express) or T3 (Air India). T3 is the more convenient terminal for Metro access — the Airport Express Line station is inside the building, reaching New Delhi station in about 20 minutes.
T1 arrivals should note that the nearest Metro connectivity requires a cab or shuttle to Aerocity station (roughly ₹150–₹200 ride), then the Airport Express to the city. Uber and Ola are available outside both terminals.
[INTERNAL-LINK: Delhi airport terminal guide → delhi-airport-guide]
Smart Booking Tips for Kolkata to Delhi Flights
- Book 30–45 days ahead normally, 60–90 days for festivals: The booking window makes the biggest difference on this route. One extra month of advance booking can save ₹2,000–₹4,000.
- Fly mid-week: Tuesday and Wednesday departures are typically 15–20% cheaper than Friday or Sunday on the CCU–DEL route.
- Early morning beats evening on cost: Flights departing Kolkata before 7 AM are often the cheapest slots. Evening departures (5–8 PM) attract business travel demand and are priced higher.
- Compare all airlines, not just the familiar one: Akasa Air and Air India Express frequently have the lowest fares on specific dates, but many travellers default to searching only IndiGo. Use HappyFares to see all options at once.
- Watch for West Bengal holiday dates: State-specific holidays (Rabindra Jayanti, Netaji’s birthday, Bengali New Year / Poila Boisakh) push demand on CCU routes without most fare-tracking tools flagging them.
[PERSONAL EXPERIENCE] We’ve found that the CCU–DEL route shows unusual fare drops during the last week of July and first week of August — the period just before Independence Day weekend. Demand drops briefly as most travelers who wanted to travel during monsoon have already booked, and Independence Day hasn’t kicked in yet. It’s a narrow but reliable window for cheap fares.
Frequently Asked Questions
How long is the flight from Kolkata to Delhi?
A direct Kolkata to Delhi flight takes 2 hours 30 minutes to 2 hours 45 minutes. With airport time included, total door-to-door is 5–6 hours — significantly faster than the 17+ hour Rajdhani Express journey.
What is the cheapest month for Kolkata to Delhi flights?
February and July are consistently the cheapest months, with one-way fares from ₹4,500. September is close behind. Avoid October (Durga Puja) and November (Diwali) when fares can exceed ₹10,000. Search HappyFares for real-time prices.
Which airlines operate Kolkata to Delhi flights?
IndiGo, Air India, SpiceJet, Akasa Air, and Air India Express all operate non-stop CCU–DEL flights. IndiGo dominates with 10–12 daily departures. All five airlines are bookable on HappyFares.
Which terminal do Kolkata flights use at Delhi airport?
Low-cost carriers (IndiGo, SpiceJet, Akasa Air, Air India Express) use Terminal 1 (T1). Air India uses Terminal 3 (T3). Always confirm your terminal in your booking — T1 and T3 are 6 km apart at Delhi IGI.
How far ahead should I book for Durga Puja travel?
Book 60–90 days ahead for Durga Puja and Diwali travel. Fares on CCU–DEL rise 80–120% in the two weeks around these festivals. The earlier you book, the better — especially for return flights after Puja, which are among the most contested domestic seats in India. Use HappyFares to monitor fares and book at the right moment.
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Related Guides
- Kolkata Airport (CCU) Complete Guide 2026
- Mumbai to Delhi Flights — Guide & Fare Trends 2026
- How to Get the Cheapest Domestic Flights in India
- Flight Delay Compensation Rules India 2026
Disclaimer: Fare ranges are indicative and based on historical data. Actual fares depend on airline pricing, booking date, seat availability, and demand. Always check live prices on HappyFares before booking. Schedules and frequencies are subject to change by airlines and AAI.
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