Cheap flights from Chennai to London from ₹ 25,038

The cheapest month to fly to London Heathrow Airport from Chennai is in February. Flight prices, which tend to average around ₹ 67,478, 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 February, then departing from Chennai during the month October is also very affordable. Most momondo users find prices during this month for around ₹ 68,348.

The cheapest day to depart on your flight to London Heathrow Airport is on a Monday when prices can be found for as low as ₹ 102,806. 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 Friday will generally be more expensive and average around ₹ 116,745. 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 ₹ 74,978 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 ₹ 66,608 on momondo.

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

As of July 2026, prices for Chennai to London Heathrow Airport flights are approximately 38% cheaper when compared to flights at the same time last year.

British Airways is the most popular carrier operating from Chennai to London Heathrow

British Airways, Etihad Airways and Air India are the top three most popular airlines that fly to London Heathrow Airport from Chennai according to our data. British Airways is the first choice among our users, with 36% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 7 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 13% 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 189 minutes.

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

Sunday 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 13% of their flights experiencing any sort of delay.

Abu Dhabi (AUH) was the most common stop: 69% of momondo users choosing one-stop flights on this route connected there.

Flights via Bengaluru (BLR) offer the lowest average return price of ₹ 59,528.

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 13h 09m.

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

As of July 2026, 3 flights take off from Chennai and land in London Heathrow Airport each day. The most common flight departure time for this route is 05:00, with 100% of daily flights taking off in the morning.

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