easyJet vs Ryanair: Which Airline Has The Youngest Fleet?

Ryanair and easyJet are two of the leading low-cost carriers in the world and two of the largest airlines in terms of the number of passengers carried in Europe. Ryanair and easyJet operate models that minimize costs by only operating one family of narrowbody aircraft. These British Isles-based carriers boast comparatively young fleets, and both have hundreds of aircraft on order. But which airline has the youngest fleet?