Cheap flights from London Heathrow to Chennai

from as little as £407

43 nights in Chennai, departing London Heathrow on 10 / Jun / 2025 with Air India (price found 37 hours ago)

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

All 8242 km of it

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Chennai flight facts

What you need to know

Alternative flights from the UK to Chennai

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Chennai

Today alone, Netflights has searched over 52,396 flights. 10 / Jun / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Chennai route. There are around 11,890 flights on any given week from the UK to Chennai and the cheapest month to fly right now is June.

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

Min / Max Temperature (°C)
LOWEST

-2 °C

AVG

13 °C

HIGHEST

27 °C

Rainfall (mm)
LOWEST

31.7 mm

AVG

113.7 mm

HIGHEST

217.5 mm

Key facts about Chennai

How to get cheap flights from London Heathrow to Chennai

Tips and advice from our flight experts

If you're looking to fly from London Heathrow to Chennai, you might like to know that 10 / Jun / 2025 currently has the cheapest flights. At the moment, there are 16 airlines flying to Chennai. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Chennai.

Emirates is the most popular airline that flies from London Heathrow to Chennai. But it's still worth looking at other options, as there are 11,890 flights to Chennai every week. If you want to broaden your search, look at flights departing from other airports.

The distance between London Heathrow to Chennai is 8242 km. Normally, it takes about 15 hrs 45 mins to fly, and you can definitely expect the journey to be at least 10 hrs 20 mins. You can see the various flight times in the results.

The cheapest month to fly to Chennai is April, while December is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to India, take a look at our accommodation options.

Other popular destinations near Chennai

Where other people are flying to

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