It’s been a long, hot, delayed summer for air travel, and the official numbers are in.

Which airlines had the most flight cancellations? JetBlue and American.

Which airlines had the most delayed flights? Southwest, with a dismal on-time arrival rate, yet it managed to cancel very few flights—just about one percent.

Which airlines had the fewest flight cancellations? Allegiant (at less than one percent) and Alaska.

And the overall most on-time airlines? Alaska, Delta, and United.