Cheap flights from London Heathrow to Calcutta

from as little as £494

42 nights in Calcutta, departing London Heathrow on 27 / Aug / 2025 with Air India (price found 35 hours ago)

Subject to availability, prices correct of the last 24 hours
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The London Heathrow / Calcutta route

All 7990 km of it

Cheap flight deals for this route

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Calcutta flight facts

What you need to know

Alternative flights from the UK to Calcutta

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Calcutta

Today alone, Netflights has searched over 8,502 flights. 27 / Aug / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Calcutta route. There are around 1,758 flights on any given week from the UK to Calcutta and the cheapest month to fly right now is August.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

14 °C

AVG

27 °C

HIGHEST

36 °C

Rainfall (mm)
LOWEST

6.5 mm

AVG

132.1 mm

HIGHEST

356 mm

Key facts about Calcutta

How to get cheap flights from London Heathrow to Calcutta

Tips and advice from our flight experts

Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Calcutta, across the nine airlines that offer this route. We've found that 27 / Aug / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.

There are 1,758 flights from London Heathrow to or via Calcutta every week. Out of the nine available airlines, the most popular ones are British Airways, Qatar Airways & Emirates. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.

Your flight from London Heathrow to Calcutta will take at least 12 hrs 50 mins. On average, it takes 15 hrs 45 mins to fly the 7990 km distance. Take a look at flight times to see which one works best for you.

If you want to travel in December, it's best to book your flights early, as this is peak season in Calcutta. The cheapest month to fly is normally May – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.

Other popular destinations near Calcutta

Where other people are flying to

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