Later this month, the quarter-finals of the UEFA Europa League, Europe’s second-tier club competition, will take place across the continent. Alongside Norwegian underdogs Bodø/Glimt’s tie against Italian heavyweights Lazio, the remaining three quarter-finals each feature a British side, with Tottenham Hotspur taking on Eintracht Frankfurt, Manchester United facing Lyon, and Rangers squaring up against Athletic Bilbao. The latter of these draws has prompted a boom in flights.