On average, Cochin (COK) is the cheapest airport for flying into India, so consider starting your trip from there. 106 direct and indirect flights land in the country from the UK every week so, if you can’t find what you’re looking for, try searching by month to see a broader range of flights. Searching by month will also show you the cheapest day to fly.
You might like to know that, out of all 11 airlines that fly to India, Etihad Airways usually has the lowest prices. What are you waiting for?