Coupons for airport parking are available through coupon websites such as Groupon.com. It's also possible to find coupons specific to an airport or to an airport parking company.
Groupon.com often features coupons and promotional codes for airport parking. For example, the site features a discount good for discounted parking at specific airports. Site visitors select the desired airport and dates, and Groupon.com shows which discounts are available. Shoppers have to purchase the parking pass ahead of time.
RetailMeNot.com offers coupon codes for airport parking. As of 2015, the discounts are good for a specific dollar amount off at any U.S. airport. Travelers have to visit the airport parking reservations site and plug in the coupon code to buy discounted parking passes.
Coupons.com offers similar discounted passes and coupon codes to both Groupon.com and RetailMeNot.com.
Travelers can also find discounted parking passes for specific airports. For example, several companies run parking lots for different airports. Travelers can visit AirportParkingReservations.com to research how much each lot charges for the specific airport. They can book their parking pass through the site, often at a discount.
Travelers can also visit specific airport parking sites such as USAirportParking.com. This site frequently features coupons for parking at its various locations. Canopy Airport Parking is another company that frequently offers coupons. This site can be accessed through AirportParkingReservations.com.