Aviation US Airways to link San Diego and Washington Reagan By Jerry Limone / March 22, 2012 Share 1 -- US Airways will launch daily service between Washington Reagan National Airport and San Diego on June 8. The carrier is able to operate the route due to Congress’ decision to add slots for long-haul service (flights beyond 1,250 miles) at Reagan National. The U.S. government has stipulated that major carriers at Reagan National give up slots to operate the long-haul service, and US Airways will surrender two slots used for flights to Dallas-Fort Worth. The government also is enabling carriers with little or no current service at Reagan National to compete for long-haul slots at the airport. Alaska Airlines has proposed San Diego service, with the flight continuing on to Honolulu. Frontier has proposed one-stop service to San Diego via Colorado Springs.