Gannon Car Rentals is a company which is advertised on the back of the Oceanic Airlines boarding passes. The picture on the advertisement is the Golden Gate Bridge in San Fransisco. It has been seen in many episodes; "Raised By Another", "Homecoming", "Exodus: Part 1", "Exodus: Part 2", "Further Instructions", and "Flashes Before Your Eyes".

Gannon Car Rentals also appears in other television shows, such as Heroes several times, and in Nip/Tuck.