There are few things more frustrating than a flight that is behind schedule. A short delay can put connecting flights, meetings and other appointments in jeopardy.
With this hazard in mind, air travel data provider OAG has ranked airlines according to their on-time performance (OTP).
A flight that lands within 15 minutes of its scheduled arrival is classified as on time by OAG — everything else is late.
Click through the gallery to see the 10 airlines that achieved the worst OTP ratings in 2017 and the 10 best.