When I was buying a ticket to Europe for study abroad I was checking these sites, in the end I used the first one, but all were helpful: * http://www.momondo.c

When I was buying a ticket to Europe for study abroad I was checking these sites, in the end I used the first one, but all were helpful: * http://www.momondo.com/ http://www.momondo.com/ * https://www.kayak.com/flights https://www.kayak.com/flights * https://www.cheapoair.com/ https://www.cheapoair.com/ * https://www.google.com/flights/ https://www.google.com/flights/ ($$$) * https://www.hipmunk.com/ https://www.hipmunk.com/ ($$$) * http://kiwi.com/ http://kiwi.com/ * https://www.skyscanner.net/ https://www.skyscanner.net/ The ones with the dollars signs were the most expensive. These sites are not all equal some are more reputable than others, etc.