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We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from London to Chennai

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Cheapest flights

From price

20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22
22 29
Jul

29 6
6 13

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight tickets from London (LON) to Chennai (MAA) the cheapest?

Airlines adjust prices for flights from London to Chennai based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from London (LON) to Chennai (MAA) cost?

According to Trip.com's data, the lowest price is around £781.
How long is the flight from London (LON) to Chennai (MAA)?

It takes about 10 hours 20 minutes to fly from London (LON) to Chennai (MAA).
What are the most popular airlines that fly from London (LON) to Chennai (MAA)?

Airlines with flights from London (LON) to Chennai (MAA): American Airlines and British Airways.
How many airports in Chennai (MAA)?

There are 1 airport(s) in Chennai (MAA): Chennai International Airport.

How to find a cheap flight from London to Chennai

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Chennai. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest flight from London to Chennai.

Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from London to Chennai over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Thu, May 29, with one-way flights priced at just £597.

Compare cheap flight deals from London to Chennai across hundreds of airlines.

With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from London to Chennai. The cheapest airline for this route is British Airways.

Set up a Price Alert

By setting up a Price Alert for your journey from London to Chennai, you can easily keep an eye on ticket prices without having to check every day.

Don't miss out on cheap flight deals and promo codes from London to Chennai.

You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.

Book early or wait until the last minute.

It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.

Search for flights on the go.

For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from London to Chennai and snag some exclusive deals just for you.

Flight Information from London to Chennai

Cheapest one-way flight price	£234
Cheapest return ticket price	£495
Off-season travel month	March
Peak season for travel	June
Flight distance	8,214.86km
Average flight time	10 hours 20 minutes
Popular airline	Air India

Flights to Chennai from London

If you’re looking to book cheap flights from London to Chennai, Trip.com has you covered. Many people travel from London to Chennai for the city’s world-famous sights, delicious Indian cuisine and unrivalled shopping scene. A convenient destination, you can fly from London to Chennai in just over 9 hours 55 mins, making it the perfect place for a short city break, or even a gateway to explore the rest of India. With prices starting from just £121, there’s never been a better time to book tickets from London to Chennai and experience all that this incredible city has to offer.

How to find a cheap flights from London to Chennai

Finding cheap flights from London to Chennai is easy with our money-saving tips. You can secure the best deals by booking in advance, flying on a weekday rather than a weekend, going incognito when browsing for flights, and choosing to fly with better-priced budget airlines.

Airlines that fly from London to Chennai

A few airlines offer direct flights from London to Chennai, including British Airways, Air India

Flight time from London to Chennai

Flight from London to Chennai takes around 9 hours 55 mins in average.

Departure from a London Airport to Chennai

Flights from London Heathrow Airprot to Chennai You can get a tube direct from the city centre to the airport. It takes approximately 45 minutes on the Piccadilly Line with prices starting from £5.50, or 30 minutes on the Elizabeth Line for £12.80. You can also get the Heathrow Express from London Paddington in 15 minutes from £5.50, or a 35-minute coach from London Victoria from £6.Flights from London Gatwick Airport to Chennai The Gatwick Express offers a non-stop train from London Victoria in just 30 minutes for £19.90. Southern and Thameslink also offer trains, with prices starting from £11.30. You can also get a coach from London Victoria to Gatwick from £10 which takes 1.5-2 hours.Flights from London Stansted Airport to Chennai The Stansted Express takes 50 minutes from London Liverpool street with prices from £9.90. You can also get the Airport Bus Express from here too, which takes around 1 hour and costs £12.Flights from London Luton Airport to Chennai The Luton Airport Express from London St Pancras takes 32 minutes with tickets from £10, or from just £5, you can get a 1.5 hour National Express Coach from London Victoria.Flights from London City Airport to Chennai You can get the DLR to London City Airport from Bank in around 20 minutes, with prices starting from just £3.