Same-day booking apps differ from browser-based travel sites in two ways: the deals on the apps are. destination without delay, these last-minute booking apps can help you make sure there‚Äôs room at. including London, Manchester, Edinburgh and Belfast. And the best bit? Flights start at just £5.99. Discounts on 500,000 seats are up for grabs, letting customers hoping to travel between June and Sep. WestJet Airlines Ltd. is a Canadian…