My wife and I booked our most recent Costa Rica trip through United Travel. At the time of booking they offered us a package for flights and hotel that had the best price and most convenient flight times for us. Checkin at the airport went smoother than normal for a United flight. We have flown other airlines the past few years and United seems to give you the least amount of legroom on their planes. We have flown JetBlue and Delta recently and have ,had more leg room,I also feel the seats on some of the other airlines are a bit wider. Food and snacks on all the airlines are all subpar for my taste, we usually bring some snacks on the air with us.You pretty much have too shop around for the best price and deal with being squeezed onto your seat for the flight. My brother and I also fly into Canada every year for our summer fishing vacation. Porter airlines have the most comfortable seats, decent snacks, top customer service, they even have very nice lounges for all their customers too wait in during layovers.