Ajmer does not have an airport of its own. The nearest airport to Ajmer is the Sanganer Airport or Jaipur International Airport which is approximately 135 km away. So, once you reach Jaipur airport, you can either book a cab or hire any Jaipur to Ajmer taxi. The journey from the airport to the city will take around 2 to 3 hours.
Note: The taxi charges are negotiable and range between Rs. 1, 500 to 2,000.