When you open a travel app, the first screen usually asks for a city or an airport code. By typing “LON” you can instantly see flight options, hotel availability, and even local events for the next 30 days. The app pulls data from multiple suppliers, so you compare prices from three airlines and a hotel chain all in one place. If you’re a last‑minute traveler, the app will flag the cheapest flight that leaves within the next 24 hours, saving you the hours you’d spend on a spreadsheet.