More than two dozen flights between Pittsburgh and Houston were canceled over the weekend as Hurricane Harvey bore down on the region, dropping a record amount of rain and shutting the city’s two commercial airports.

George Bush Intercontinental/Houston Airport was shut Sunday and is expected to reopen sometime Monday afternoon. Houston William P. Hobby Airport, the region’s other airport, also shut over the weekend and is expected to not reopen until Wednesday morning.

That played havoc with the…