Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Salina as you normally would.
Salina (SLN) is the airport you will fly into if you book a flight from London to Salina. You should not have trouble finding flights to Salina from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Salina airport from London. It is only a 3.8 mi journey from Salina (SLN) to Salina’s city center.