Cheap flights from Chennai to London from $264

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Chennai, with most prices found around $711. If you’re not able to fly to London Heathrow Airport in October, then December is your next best option. Flight prices from Chennai to London Heathrow Airport during December average around $712.

Our data shows that Friday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,106. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,192.

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 $771 when searching weeks out. 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 $688 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.

You could potentially save up to 40% on your flight if you consider stops on a Chennai to London Heathrow Airport flight.

Oman Air 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 traveling to London Heathrow Airport. Keep in mind that there are 4 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 in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of February 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 7:00AM, with 100% of daily flights taking off at noon.

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