Allegiant AirMore than a quarter of those flights were delayed or canceled. In fact, 27.31 percent of the airline's flights were delayed, while just 72.69 percent of its flights were on time. There you have it. Of all the US airlines, Allegiant has the most delays and cancellations.
What is the top worst airline?
Frontier is the worst US airline in 2023, and Spirit isn't far behind, according to recent study — see the list of the top 10 airlines
- Frontier was named the worst US airline in 2023 by claims management company AirAdvisor.
- Spirit, another low-cost airline, was ranked the second-worst on the list.