US travelers are facing sudden flight cancelations to popular destinations starting this September.

Passengers trying to book certain routes on or after September 2 are being met with blacked-out dates on airlines' websites.

The disruptions will affect flights to Havana, Cuba , with United Airlines halting all Houston to Havana services until at least summer 2026.

The suspension covers the entire winter 2025-26 season, according to documents seen by The U.S. Sun.

United confirmed the move is part of routine schedule adjustments driven by seasonality, demand, and market factors.

Southwest Airlines is also scaling back services to the Caribbean.

From September 4, its Tampa to Havana route will drop from two round-trips daily to just one.

The temporary reduction is expecte

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