London to Kolkata
10h 20m The flight from London Heathrow Airport (LHR) to Netaji Subhash Chandra Bose International Airport (CCU) covers 7,984 km (4,961 miles) and takes approximately 10h 20m gate to gate for a typical jet.
The route heads east on an initial great-circle bearing of 76°, passing near 46.1° N, 54.8° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 14h 31m | 14h 56m |
| Narrowbody jet (A320, 737) | 780 km/h | 10h 14m | 10h 39m |
| Widebody jet (777, 787, A350) | 900 km/h | 8h 52m | 9h 17m |
| Private jet (Gulfstream) | 850 km/h | 9h 24m | 9h 49m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| LHR | CCU | |
|---|---|---|
| Airport | London Heathrow Airport | Netaji Subhash Chandra Bose International Airport |
| City | London | Kolkata |
| Country | United Kingdom | India |
| ICAO | EGLL | VECC |
| Coordinates | 51.4707, -0.4599 | 22.654, 88.4477 |
| Elevation | 83 ft | 16 ft |
Questions
How long is the flight from London to Kolkata?
A non-stop flight from London (LHR) to Kolkata (CCU) takes about 10h 20m. The great-circle distance is 7,984 km (4,961 miles, 4,311 nautical miles), flying east on an initial bearing of 76°.
How far is London from Kolkata?
7,984 kilometres in a straight line over the earth's surface — 4,961 miles or 4,311 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between LHR and CCU?
This page calculates the direct-line time and distance; it does not track airline schedules. At 7,984 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
What should I expect on a 10h 20m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Other routes from London
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.