frontier airlines pads their empty flights by telling cust. that they have to have a way out of costa rica at the last minute b 4 boarding . they do not tell u when u purchase a one way they do not tell u when u use their 800 num to make a reservation they do not tell you when you pay at the counter at the airport the do not tell you when u board your initial flight b 4 u connect in den. they then spring it on u at the last min. and blame the costa rican gov. this does not happen on american OR cont. airlines i plan to file a... read full review »