If you want a cheap flight from Malatya to London, you've got one airlines to choose from.
You can use the filters on your search to see more flights and find cheaper rates – London has more than one airport. So if you don't need to fly into London Heathrow, it's worth checking your other options. The 3315 km flight usually takes about 11 hrs 10 mins.
If you're planning on going to London during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.