Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Blackpool to Sheffield as you normally would.
Located just 3.2 mi from the city center, Blackpool is the airport most travelers will use when flying to Sheffield from Blackpool. Booking flights from Blackpool (BLK) to Sheffield should be relatively easy as there are 0 daily outbound flights to Sheffield from 0 different airlines.