Cheap flights from London to Tamil Nadu from £243

If you’re not able to fly to Tamil Nadu in September, then November is your next best option. Flight prices from London to Tamil Nadu during November average around £474.

According to our data, Tuesday is the cheapest day to fly to Tamil Nadu from London. The lowest ticket price found for a Tuesday departure recently was £619. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London to Tamil Nadu on a Saturday will generally be more expensive and average around £693. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the morning is the cheapest time of day to fly from London to Tamil Nadu when you can find flight prices for as low as £657. Flying to Tamil Nadu in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Tamil Nadu is at midday when prices are around £662.

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

You are more likely to see cheaper flights to Tamil Nadu from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Tamil Nadu for around £565 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tamil Nadu from London for as low as £516 on momondo.

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

Etihad Airways, Air India, and IndiGo are the most popular carriers operating from London to Tamil Nadu

Air India, British Airways and Etihad Airways are the top three most popular airlines that fly to Tamil Nadu from London according to our data. Air India is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Tamil Nadu. Keep in mind that there are 15 different airlines that fly to Tamil Nadu on a routine basis, so you have a few additional options to choose from.

As of March 2026, there are 1 flights per day flying from London to Tamil Nadu. The most common time of day flights depart is 14:00, with 100% of flights taking off in the afternoon.

As of March 2026, 12 flights take off from London and land in Tamil Nadu each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.