The park is open 24 hours daily all year.
Rental cars are available at both airports.
TX 118 from Alpine to Study Butte or FM 170 from Presidio tthrough Study Butte, or US 90 or US 385 through Marathon. Distances between towns and services can be considerable. Always be sure you have plenty of gas, oil, food, and water for your trip. The Big Bend National Park has four camper stores, but supply and selection can be limited. No public transportation is available to this site.