Title: Fullsize Car Rentals in Fort Sam Houston - Expedia.com ![](https://a.travel-assets.com/travel-assets-manager/bex-affinities/lodging.jpg?impolicy=fcrop&w=1200&h=300&q=medium) # Fullsize Car Rental Companies in Fort Sam Houston - ![protection illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__protection.svg) ### Change your mind Penalty-free cancellation on many/select car rentals - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Treat yourself One Key members save 10% or more on over 1 million car rentals [Learn about One Key](https://www.expedia.com/welcome-one-key) - ![package illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__package.svg) ### Shop smart Compare car suppliers and package your flight, hotel, and car to save ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. 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