Cheap flights from London Heathrow to Chennai

Q: How much are flights normally?

£ 412. If you see flights from London Heathrow to Chennai for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

25 weeks. If you want cheap flights from London Heathrow to Chennai, this is the best time to book.

Q: What are the cheapest airlines?

Air India, British Airways, Etihad Airways, Gulf Air, Kuwait Airways. These airlines usually offer the cheapest flights from London Heathrow to Chennai.

Q: Can I fly direct to Chennai?

British Airways. You can fly non-stop from London Heathrow to Chennai with these airlines.

Q: What airlines fly indirectly?

Etihad Airways, Air India, Emirates, Lufthansa, Vistara. These airlines fly from London Heathrow to Chennai, but you’ll have at least one layover.

Q: When is high season?

December. This is the most expensive time to fly to Chennai. If this is when you want to go, book your flight from London Heathrow in advance.

Q: When is the cheapest time to fly?

April. Flights from London Heathrow to Chennai are usually cheaper at this time of year.

Q: How long is the flight?

9 hrs 55 mins. This is the shortest flight time from London Heathrow to Chennai.

Q: How long should I stay in Chennai?

8 days. Most people spend this amount of time in Chennai.

from as little as £513

19 nights in Chennai, departing London Heathrow on 11 / Feb / 2025 with Gulf Air (price found 83 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to 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

How much are flights normally?

£ 412

If you see flights from London Heathrow to Chennai for less than this, you've found a good deal.

When is the best time to book cheap flights?

25 weeks

If you want cheap flights from London Heathrow to Chennai, this is the best time to book.

What are the cheapest airlines?

Air India
British Airways
Etihad Airways
Gulf Air
Kuwait Airways

These airlines usually offer the cheapest flights from London Heathrow to Chennai.

Can I fly direct to Chennai?

British Airways

You can fly non-stop from London Heathrow to Chennai with these airlines.

What airlines fly indirectly?

Etihad Airways
Air India
Emirates
Lufthansa
Vistara

These airlines fly from London Heathrow to Chennai, but you’ll have at least one layover.

When is high season?

December

This is the most expensive time to fly to Chennai. If this is when you want to go, book your flight from London Heathrow in advance.

When is the cheapest time to fly?

April

Flights from London Heathrow to Chennai are usually cheaper at this time of year.

How long is the flight?

9 hrs 55 mins

This is the shortest flight time from London Heathrow to Chennai.

How long should I stay in Chennai?

8 days

Most people spend this amount of time in Chennai.

Alternative flights from the UK to Chennai

Check out prices for other routes

London to Chennai

from £513 pp

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Manchester to Chennai

from £522 pp

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Edinburgh to Chennai

from £566 pp

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Birmingham to Chennai

from £673 pp

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London City Airport to Chennai

from £1,287 pp

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London Gatwick to Chennai

from £578 pp

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London Stansted to Chennai

from £658 pp

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Alternative flights from London Heathrow

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11 / Feb / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Chennai route. There are around 11,548 flights on any given week from the UK to Chennai and the cheapest month to fly right now is February.

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

Currency

Indian rupee

Language

Hindi

English

Timezone

5.5 hrs ahead of GMT

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 11 / Feb / 2025 currently has the cheapest flights. At the moment, there are 19 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.

Etihad Airways is the most popular airline that flies from London Heathrow to Chennai. But it's still worth looking at other options, as there are 11,548 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 50 mins to fly, and you can definitely expect the journey to be at least 9 hrs 55 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.