He joins the global distribution system (GDS) provider from Amadeus, where he held a variety of positions including head of account management, leisure, and most recently senior commercial account manager, OTA UK and Ireland.
Prior to his time at Amadeus, Smith worked for several travel companies including Eurostar, Hoverspeed and First Rate Travel Services.
Nisha Botevyle, UK country director for Sabre, said: "Grant is a dedicated, experienced sales and account manager with excellent industry contacts who will make an important contribution to our continued success in the UK.