Frontier Airlines has quietly pulled the plug on 21 international routes in 2026, according to schedule data from aviation analytics firm Cirium. The cuts, which took effect between March and August, stretch across ten US airports and hit some of the most popular sun destinations for American travellers: Cancun, Punta Cana, Aruba, Nassau, Los Cabos, Puerto Vallarta and St. Maarten.
No city lost more than Atlanta. Hartsfield-Jackson saw eight international routes disappear in April alone, spanning Aruba, Nassau, Providenciales in Turks and Caicos, Puerto Vallarta, San Pedro Sula in Honduras, Santo Domingo, San José del Cabo and Sint Maarten. The shortest of those was the hop to Nassau at 726 miles; the longest was Aruba at 1,715 miles. None are scheduled to return in 2027, even the ones that were technically seasonal. Delta, the hometown carrier at ATL, is expected to pick up much of the slack.
Florida took a hit too. Miami lost three routes (San Salvador and Santo Domingo in April, Punta Cana in August), Orlando dropped Santo Domingo in May and Sint Maarten in August, and Tampa's Punta Cana nonstop ended in August. The Miami–San Salvador route was Frontier's most contested — American, Avianca El Salvador and Volaris El Salvador all fly it, so seats won't be scarce. Orlando–St. Maarten is a different story: Southwest is now the only airline on the route, so prices there could climb.
Elsewhere, Baltimore, Charlotte, Chicago Midway and Raleigh-Durham all lost their Cancun nonstops, while Denver dropped Los Cabos and Puerto Vallarta and O'Hare lost Punta Cana. One route stands out as an obvious candidate for the axe: Charlotte to Cancun was filling fewer than half its seats, with a load factor of just 48.2% per US DOT data.
Why should you care? If you'd built a holiday around a cheap Frontier flight to the Caribbean or Mexico this year, check your booking — and if you haven't booked yet, know that alternatives exist on most of these routes. Cancun, in particular, remains well served by Southwest, American, Delta, United and Aeromexico from the affected cities. The only genuinely thin route is Orlando–St. Maarten, where Southwest now has a monopoly. For budget travellers, the silver lining is that competitors are inheriting Frontier's former markets, and some may even fare better than the ultra-low-cost original, given Frontier's fees for bags and seat selection. Just expect nonstop options to be pricier or less frequent than before on the leaner routes.
Story first reported by Simple Flying.
