[wjfmsmith]

I paid $559.20 for two one way tickets on Frontier and had to cancel because my husband was suddenly hospitalized. I sent a doctor's letter stating the reason that we couldn't fly on reserved day. I tried to rebook using my " credit , " to book tickets for a total of $ 469.20 . I was told that I could not use the remainder of this credit to cover the change fees . In other words, Frontier Airlines insists on keeping my $90 credit and charging me an additional $ 100 . We have flown on Frontier 8 times since Dec 2008 for medical visits in New York to Memorial Sloan Kettering Cancer Center from Denver and had to pay numerous change fees because of the unknown of when my husband will be able to travel. This last extra charge has convinced me to fly on another airline for all the frequent upcoming medical trips.