Cheap flights from the United Kingdom to Chennai from £171

The month of September is, on average, the cheapest month to fly to Chennai from United Kingdom, with most prices found around £458. If you aren’t able to travel during the month of September, then book flights to Chennai from United Kingdom during November instead. Flights to Chennai in November, while not as cheap as those in September, still average around £467.

The cheapest day to depart on your flight to Chennai is on a Tuesday when prices can be found for as low as £616. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £684. These prices are subject to change though, so be sure to set up a Price Alert for flights to Chennai.

Flying to Chennai from United Kingdom at midday is the least expensive time of day to depart. momondo users have found prices as low as £653 when looking at flights departing at midday. In contrast, the most expensive time of day to depart to Chennai is in the morning when prices are around £654.

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

You are more likely to see cheaper flights to Chennai from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chennai for around £557 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 United Kingdom for as low as £505 on momondo.

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

Gulf Air, Air India, and IndiGo are the most popular carriers operating from United Kingdom to Chennai

Etihad Airways, Air India and British Airways are the top three most popular airlines that fly to Chennai from United Kingdom according to our data. Etihad Airways is the first choice among our users, with 27% of people opting to fly with this airline when travelling to Chennai. Keep in mind that there are 15 different airlines that fly to Chennai on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% of flights between United Kingdom and Chennai have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening 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. Wednesday 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 23% of their flights experiencing any sort of delay.

The number of flights available between United Kingdom and Chennai is 2 per day as of February 2026. The most frequent departure time is 14:00, with 100% of daily flights leaving in the afternoon.

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