EasyJet had 29 inches, and Ryanair had 30 inches, reports the Express.
Airline with the least legroom - and it's not Ryanair or easyJet Hopping on a plane, only to discover you've got minimal legroom, can be a major annoyance - especially when upgrading to a roomier seat comes with a hefty price tag.
Wizz Air - 28 inches (71 cm).
Ryanair - 30 inches (76 cm).
also checked seat width, finding most airlines had similar sizes, around 17 inches.