Flights from London Heathrow to Chennai

Our cheapest offers for flights from London Heathrow to Chennai

Here you can compare cheap flights from London Heathrow (LHR) to Chennai (MAA) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Chennai. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Chennai
Outbound
22/03/26
1 Stopover (BOM)
AI0128, AI2821
13h 45min
Return
-
Air India
£323
found yesterday
London Heathrow
Chennai
Outbound
05/12/25
2 Stopovers (IST, BAH)
TK1972, GF0046, GF0052
21h 25min
Return
18/12/25
1 Stopover (BOM)
6E6014, 6E0001
13h 50min
Turkish Airlines, Gulf Air
£417
London Heathrow
Chennai
Outbound
01/05/26
1 Stopover (DEL)
AI0162, AI0891
15h 05min
Return
29/09/26
1 Stopover (DXB)
EK0547, EK0029
20h 55min
Air India
£467
Best option
London Heathrow
Chennai
Outbound
07/12/25
1 Stopover (BLR)
AI0132, AI2824
12h 15min
Return
27/12/25
1 Stopover (BOM)
AI0571, AI0131
16h 25min
Air India
£492
London Heathrow
Chennai
Outbound
20/03/26
1 Stopover (AUH)
EY0064, EY1016
19h 45min
Return
17/04/26
1 Stopover (BAH)
GF0069, GF0007
29h 25min
Etihad Airways
£482
London Heathrow
Chennai
Outbound
20/03/26
2 Stopovers (AMS, BOM)
BA0430, 6E0022, 6E5107
20h 10min
Return
17/04/26
1 Stopover (BAH)
GF0069, GF0003
13h 50min
British Airways, IndiGo Airlines
£493
London Heathrow
Chennai
Outbound
20/03/26
1 Stopover (AUH)
EY0064, EY1016
19h 45min
Return
17/04/26
1 Stopover (BAH)
GF0069, GF0003
13h 50min
Etihad Airways
£495
London Heathrow
Chennai
Outbound
07/12/25
1 Stopover (BLR)
AI0132, AI2824
12h 15min
Return
27/12/25
1 Stopover (DEL)
AI0538, AI2017
28h 10min
Air India
£500
London Heathrow
Chennai
Outbound
07/12/25
1 Stopover (BLR)
AI0132, AI0525
28h 15min
Return
27/12/25
1 Stopover (BLR)
AI2823, AI0133
33h 20min
Air India
£509
London Heathrow
Chennai
Outbound
06/12/25
1 Stopover (BLR)
AI0132, AI2824
12h 15min
Return
26/12/25
1 Stopover (BOM)
AI0571, AI0131
16h 25min
Air India
£512
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Chennai

Favourite airline: Air India
77 % of travellers choose to book flights on this route with Air India, Gulf Air and Lufthansa.
Air India
47 %
Gulf Air
24 %
Lufthansa
6 %
Favourite connection: via Mumbai
The most popular flights on this route are via Mumbai and are booked by 46 % of all travellers.
Route
bookings
1 stopover Mumbai (Bombay)
15h 25min, from 768 GBP
46 %
1 stopover Bahrain
17h 20min, from 910 GBP
31 %
1 stopover Delhi Indira Gandhi
33h 20min, from 806 GBP
15 %

Important flight information

Flight information: London Heathrow - Chennai

Cheapest outbound flight from 322,70 GBP
Outbound and return from 416,50 GBP
Flight duration min. 09:50
Return flight duration min. 11:15
Distance 8245 km
Flights per week 8
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport Chennai (Madras) (MAA)
Destination country Flights to India
Alternative routes to India
Alternative flights to Chennai
Flight destinations with a similar price