TL;DR — Delhi to Kolkata Flights in 2026
- Flight time: 2 hours to 2 hours 15 minutes (direct)
- Daily flights: 12–16 non-stop flights from DEL to CCU
- Cheapest months: June–July (from ₹2,800); most expensive: October (Durga Puja) at ₹6,000–₹14,000
- Best booking window: 21–45 days for most months; 60–75 days for October/November
- Book on HappyFares — zero convenience fee, all airlines compared
Delhi to Kolkata is one of India’s most storied domestic air routes — connecting the political capital with the city that was once the British Empire’s crown jewel. Today, it’s a high-traffic corridor used by business travellers, students, festival-goers, and families. With roughly 12–16 daily non-stop flights operating in 2026, it’s well-served and competitively priced for most of the year.
But this route has a dramatic seasonal split. Fares during the Durga Puja festival in October can be three to four times higher than the cheapest monsoon prices. Planning smart — and booking at the right time — can save you thousands of rupees on this route. Here’s everything you need to know about Delhi to Kolkata flights in 2026.
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Route Overview: Delhi (DEL) to Kolkata (CCU)
The Delhi–Kolkata air corridor links Indira Gandhi International Airport (DEL) with Netaji Subhas Chandra Bose International Airport (CCU). The aerial distance is approximately 1,310 kilometres, and direct flights cover it in 2 hours to 2 hours 15 minutes — making this one of the faster metro-to-metro connections in the country.
Kolkata operates a single integrated terminal for both domestic and international flights. It’s located at Dum Dum, about 17 km from the city centre. The Delhi Airport Metro Express connects New Delhi station to DEL in around 20 minutes, making city-to-airport transit straightforward from both ends.
The Rajdhani Express is the most popular train alternative, but it takes 17–20 hours — roughly 9 times longer than the flight. For most travellers, the air route is the obvious choice on time grounds alone.
Which Airlines Fly from Delhi to Kolkata in 2026?
Four major carriers compete on the DEL–CCU route in 2026, giving travellers solid choice across price points and schedules. According to DGCA domestic traffic data, the Delhi–Kolkata route handles upwards of 5,000 passengers daily during peak season, making it one of the busiest east–west corridors in the country. Here’s a breakdown of what’s operating:
[CHART: Bar chart — Daily non-stop flights by airline on DEL-CCU route — Source: airline schedules 2026]
| Airline | Daily Non-Stop Flights (Approx.) | Cabin Options | Typical One-Way Fare |
|---|---|---|---|
| IndiGo | 6–8 | Economy, Stretch | ₹2,800 – ₹9,000 |
| Air India | 3–4 | Economy, Business | ₹3,500 – ₹13,000 |
| SpiceJet | 2–3 | Economy | ₹2,700 – ₹7,500 |
| Akasa Air | 2–3 | Economy | ₹2,800 – ₹7,500 |
IndiGo dominates frequency on this route, but SpiceJet and Akasa Air frequently undercut on price to win share. Don’t assume IndiGo’s fare is always lowest — a side-by-side comparison on HappyFares regularly surfaces cheaper options on the same day.
> **Citation Capsule:** The Delhi–Kolkata domestic route (DEL–CCU) sees approximately 12–16 non-stop departures daily in 2026. IndiGo leads with 6–8 daily flights, while Air India, SpiceJet, and Akasa Air each contribute 2–4 daily services. Economy fares range from ₹2,700 during off-peak periods to ₹13,000 during Durga Puja. (Source: Airline schedules and DGCA domestic traffic data, 2026)
Fare Trends by Season: When Are Delhi to Kolkata Flights Cheapest?
No other domestic route in India sees as dramatic a seasonal fare swing as Delhi–Kolkata — primarily because Durga Puja drives one of the largest single-festival travel surges in the country. DGCA data shows advance bookings on this route during the Puja window (late September to mid-October) rising by 60–80% versus the previous month. Here’s how fares look across the year:
| Month | Season | Typical One-Way Fare (Economy) | Notes |
|---|---|---|---|
| January | Off-peak | ₹3,000 – ₹5,500 | Good deals after New Year rush |
| February | Off-peak | ₹2,800 – ₹5,000 | One of the cheapest months |
| March | Shoulder | ₹3,000 – ₹5,500 | Holi weekend sees a brief spike |
| April | Off-peak | ₹2,800 – ₹5,000 | Great value; pleasant Kolkata weather |
| May | Moderate (school holidays) | ₹3,200 – ₹6,000 | Family travel pushes demand up |
| June | Monsoon (cheapest) | ₹2,800 – ₹4,000 | Lowest fares of the year |
| July | Monsoon (cheapest) | ₹2,800 – ₹4,000 | Best month to find deals |
| August | Monsoon | ₹3,000 – ₹4,500 | Independence Day weekend slightly higher |
| September | Pre-Puja (demand building) | ₹3,500 – ₹7,000 | Book early; fares rise fast from mid-September |
| October | Peak (Durga Puja) | ₹6,000 – ₹14,000 | Highest fares of the year — book 60+ days ahead |
| November | Peak (Diwali / Kali Puja) | ₹5,000 – ₹10,000 | Kali Puja is a major Kolkata event |
| December | Peak (year-end holidays) | ₹4,500 – ₹9,000 | Book 45–60 days ahead for Christmas week |
Pro Tip: The Puja Booking Deadline
If you need to fly Delhi–Kolkata during Durga Puja (typically mid-to-late October), treat August 1 as your personal booking deadline. Fares that are ₹4,000 in August can easily hit ₹11,000 by September for the same dates. Set an alert on HappyFares and move the moment fares open.
Flight vs Train: Delhi to Kolkata — Which Makes More Sense?
The Rajdhani Express (12301/12302) is the premium train on this route, covering the 1,450 km journey in approximately 17–20 hours. For many Indian travellers, especially those carrying heavy luggage or relocating, the train is still a serious option. Here’s how the two compare:
| Factor | Flight | Rajdhani Express |
|---|---|---|
| Journey Time | ~2 hrs 10 min | 17–20 hours |
| Total Door-to-Door | 4–5 hours | 18–22 hours |
| Cost (Economy / 3AC) | ₹2,800 – ₹8,000 | ₹1,700 – ₹2,800 |
| Luggage | 7–15 kg (fare-dependent) | No practical limit |
| Meals | Buy on board (LCC) or included (Air India) | Included in Rajdhani fare |
| Best For | Fast travel, business trips, time-sensitive journeys | Budget trips, heavy luggage, overnight comfort |
When flight fares dip below ₹4,000 — which happens regularly from February through September outside festival weeks — flying is the clear winner. The 15+ hour time difference is simply too large for most travellers to ignore. Search current fares on HappyFares to compare.
[UNIQUE INSIGHT] There’s a lesser-known hack on this route: booking the Delhi–Kolkata flight for the day before a major festival (Puja Ashtami or Navami) rather than the festival’s first day can save ₹2,000–₹4,000 per ticket. Most travellers rush to arrive by the first day, leaving slightly later departures underpriced.
Smart Tips for Booking Cheaper Delhi to Kolkata Flights
- Mid-week departures save 10–20%: Tuesdays and Wednesdays are consistently cheaper than Fridays and Sundays on this route. Even shifting your departure by one day can mean real savings.
- Early morning flights are cheapest: The 5:30–7:00 AM departures from Delhi are often the day’s lowest-priced options. They’re also lighter on traffic — useful if you need to be in Kolkata by mid-morning.
- Book round-trip: Round-trip fares are typically ₹500–₹900 cheaper than two separate one-way tickets on this route.
- Avoid last-minute bookings: Same-week bookings on DEL–CCU can cost ₹6,000–₹9,000 even outside festival season. Advance planning pays off every time.
- Compare all four airlines: On HappyFares, you see IndiGo, Air India, SpiceJet, and Akasa Air side by side. The cheapest airline on any given day varies — sometimes significantly.
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Cultural Travel Tips for Kolkata Visitors
Kolkata rewards travellers who take time to explore beyond the airport and hotel.
Getting Around Kolkata
The Kolkata Metro is one of India’s oldest and most reliable — it runs directly under the city’s main arteries and connects you to key neighbourhoods like Park Street, Esplanade, and Howrah. Uber and Ola operate widely. Yellow taxis are iconic and affordable for shorter trips, though app cabs are easier for longer distances.
Best Times to Visit Kolkata
October through February is the sweet spot for weather — temperatures are pleasant (18°C–28°C), the air is clear, and Kolkata’s festivals (Durga Puja, Diwali/Kali Puja, Christmas) make the city extraordinary. March and April are warm but still manageable. May through August is hot and humid; the city is best avoided unless you have specific reasons to visit.
What to See and Do
- Victoria Memorial: The iconic white marble monument and museum — allow 2–3 hours
- Howrah Bridge: The cantilever bridge over the Hooghly River is best at sunrise or late evening
- Park Street food scene: Kolkata’s food culture is legendary — from the biryani on Park Circus to the rolls and chaats on Park Street
- College Street: One of the largest second-hand book markets in the world
- Belur Math and Dakshineswar Kali Temple: Significant religious and cultural sites accessible by boat on the Hooghly
Frequently Asked Questions
How long is the flight from Delhi to Kolkata?
A direct flight from Delhi (DEL) to Kolkata (CCU) takes approximately 2 hours to 2 hours 15 minutes. With 12–16 daily non-stop flights, you have a wide choice of departure times from early morning to late evening.
What is the cheapest month to fly from Delhi to Kolkata?
June and July are the cheapest months, with economy fares starting from ₹2,800 one-way. Monsoon keeps leisure demand low, and airlines price aggressively to fill seats. Use HappyFares to find the best current deal.
How far in advance should I book Delhi to Kolkata flights?
For most months, 21–45 days in advance is the sweet spot. For Durga Puja (October) and Diwali, book at least 60–75 days ahead — these are the highest-demand days of the year on this route, and early bookings can save you ₹3,000–₹6,000 per ticket.
Is the Rajdhani Express better than flying Delhi to Kolkata?
It depends on your priorities. The Rajdhani takes 17–20 hours and costs ₹1,700–₹2,800 in 3AC — significantly cheaper but far slower. When flight fares are under ₹4,000 on HappyFares, most travellers find flying worth every rupee of the premium.
Which airlines operate daily flights from Delhi to Kolkata?
IndiGo (6–8 daily flights), Air India (3–4), SpiceJet (2–3), and Akasa Air (2–3) all operate non-stop services on this route. Compare fares across all four on HappyFares for the best deal.
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- How to Get the Cheapest Flights in India 2026
- Best Credit Cards for Flight Bookings in India 2026
Disclaimer: Fare ranges mentioned are indicative and based on historical trends. Actual fares vary by airline, booking date, demand, and availability. Always verify current prices on HappyFares before booking. Flight schedules are subject to change by airlines.
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