Cheap flights from Chennai to London from ₹ 24,093

The cheapest month to fly to London Heathrow Airport from Chennai is in October. Flight prices, which tend to average around ₹ 65,382, are often lower during this time because this is during the off-season. If you are unable to visit London Heathrow Airport during the month of October, then departing from Chennai during the month December is also very affordable. Most momondo users find prices during this month for around ₹ 65,474.

The cheapest day to depart on your flight to London Heathrow Airport is on a Wednesday when prices can be found for as low as ₹ 99,057. This is often the case because there is less demand to fly during this day of the week. Flights from Chennai to London Heathrow Airport on a Saturday will generally be more expensive and average around ₹ 111,845. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You are more likely to see cheaper flights to London Heathrow Airport from Chennai when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around ₹ 70,785 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Chennai for as low as ₹ 63,267 on momondo.

There are 3 cabin classes available to choose from on Chennai to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for Chennai to London Heathrow Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

Etihad Airways, British Airways, and SWISS are the most popular carriers operating from Chennai to London Heathrow

Air India, British Airways and Etihad Airways are the top three most popular airlines that fly to London Heathrow Airport from Chennai according to our data. Air India is the first choice among our users, with 32% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 9 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between Chennai and London have experienced a delay on any given week. The average delay length over the past 12 months has been 238 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday 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 11% of their flights experiencing any sort of delay.

Abu Dhabi (AUH) was the most common stop: 66% of momondo users choosing one-stop flights on this route connected there.

Flights via Mumbai (BOM) offer the lowest average return price of ₹ 62,192.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 13h 20m.

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 11m.

As of March 2026, 2 flights take off from Chennai and land in London Heathrow Airport each day. The most common flight departure time for this route is 07:00, with 100% of daily flights taking off at midday.

14 flights are operational weekly from Chennai to London Heathrow Airport as of March 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.