I did not know that Travelocity can not get seats on flights until 24 hours before the flight. I was able to go online and book a seat on a United leg of my trip but am not able to do that with Frontier. I would not book with Travelocity again for this reason. I have had much better luck with Orbitz who handles everything and if a flight is changed and does not work for you, they will negociate with the airlines to find a flight that works. read full review »