Frontier Airlines announced a one-day promotion Wednesday for $1 flights originating in several cities including Atlanta. But as of mid-afternoon, it was a hit-or-miss proposition booking any flight on Frontier; the airline’s website temporarily crashed.

Frontier’s main Web page intermittently read, in part, “Oh no! So many people are trying to take advantage of our low fares that our system can’t keep up.”

None of the fares are really just a dollar. With taxes and fees, the lowest price from Atlanta was actually $15 to any of nine different cities including Washington, D.C. (Dulles), New Orleans and Miami. Many restrictions applied to the fares including date and time of departure.