Frontier Airlines, like other carriers, sometimes cancels flights, but the likelihood depends on things like weather, air traffic, crew availability, and how full a route is. Budget airlines, including Frontier, can be more affected by tight scheduling and fewer backup crews, which can lead to cancellations when disruptions happen. That doesn’t mean every flight will be canceled — most still operate as scheduled — but delays or changes are more common around bad weather or busy travel periods. If you’re concerned about a specific flight, checking the status before you go and signing up for alerts helps you stay updated.