As of early 2026, over 90 different airlines operate flights across London's six major airports (Heathrow, Gatwick, Stansted, Luton, London City, and Southend). London Heathrow remains the primary hub, hosting over 80 carriers ranging from global giants like British Airways and Emirates to specialized regional airlines. Gatwick and Stansted serve as massive bases for low-cost carriers like easyJet and Ryanair, while also accommodating a growing number of long-haul budget options like Norse Atlantic. Even smaller airports like London City host about 10–12 airlines focused on business travel and European city hops. This density makes London the most connected aviation hub in the world, with direct flights available to nearly every inhabited continent. For 2026 travelers, this variety ensures highly competitive pricing and a vast array of "one-stop" connections to virtually anywhere on the globe.