Best airline from Knoxville to Chicago

Most punctual on this route

B
United Airlines

86.36% on time across 317 flights · 2.52% cancelled

That is 10.5 points clear of Envoy Air, the next best on this route at 75.88%.

Every airline on TYS to ORD, ranked

# Airline Flights On time Cancelled Grade
1 United Airlines 317 86.36% 2.52% B
2 Envoy Air 175 75.88% 1.71% C
3 Republic Airways 79 70.89% 0%
4 SkyWest Airlines 815 66.67% 2.94% F
5 PSA Airlines 834 60.57% 6.47% F

Why this is worth checking per route

An airline's overall punctuality is an average across everywhere it flies, and averages hide the thing you are booking. A carrier can be middling nationally and the best option on this particular pair of airports — because of which slots it holds, what time of day it schedules, and which aircraft feeds the flight.

On TYS to ORD the spread between best and worst is 25.8 points. Both carriers fly the same corridor, into the same weather and the same air traffic control — so a gap that size is a fact about the airlines, not the route.

Punctuality is one dimension of a good airline and not the one most people would name first. It is, though, the only one measured the same way for everybody and published by someone with no stake in the answer. Full TYS to ORD record → · Best time of year to fly it →