Cheap flights from London Heathrow Airport to Chennai from ₹ 34,110

The month of May is another great option to travel to Chennai, with average flight prices from London Heathrow Airport averaging around ₹ 64,219.

On average, the least expensive day to fly to Chennai from London Heathrow Airport is on a Monday. momondo users have found tickets for Monday departures for as low as ₹ 75,429. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London Heathrow Airport to Chennai on a Sunday will generally be more expensive and average around ₹ 165,700. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest London Heathrow Airport to Chennai flights are usually those with departure times at midday. Our users have found flights to Chennai at midday for as low as ₹ 79,770. Try not to purchase tickets in the morning because they tend to be around ₹ 84,758. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from London Heathrow to Chennai for the best London Heathrow - Chennai flight prices

You are more likely to see cheaper flights to Chennai from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chennai for around ₹ 72,930 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chennai from London Heathrow Airport for as low as ₹ 67,459 on momondo.

There is only 1 cabin class available to choose from on London Heathrow Airport to Chennai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air India, Oman Air, and Qatar Airways are the most popular carriers operating from London Heathrow to Chennai

Etihad Airways, British Airways and Air India are the top three most popular airlines that fly to Chennai from London Heathrow Airport according to our data. Etihad Airways is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Chennai. Keep in mind that there are 7 different airlines that fly to Chennai on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between London and Chennai have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

Abu Dhabi (AUH) was the most common stop: 53% of momondo users choosing one-stop flights on this route connected there.

Flights via Mumbai (BOM) offer the lowest average return price of ₹ 55,217.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 12h 05m.

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 10m.

As of September 2026, there are 3 flights per day flying from London Heathrow Airport to Chennai. The most common time of day flights depart is 12:00, with 100% of flights taking off in the afternoon.

The number of flights available between London Heathrow Airport and Chennai is 21 per week as of September 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.