If you're looking to fly from London Heathrow to Ndjamena, you might like to know that 22 / Jan / 2019 currently has the cheapest flights. At the moment, there are zero airlines flying to Ndjamena. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Ndjamena.
If you can't find a flight time that suits you, why not look at flying out from a different airport?
The distance between to Ndjamena is 4596 km. You can see the various flight times in the results.
You can also search by month, which will reveal the cheapest time of the week to fly.