SFO > Cozumel, Mexico: Flight & 10 nights: $571- Aug-Oct (Including Fourth of July) Cozumel is a completely separate part of mexico, and if you’ve ever thought about scuba diving, there isn’t a more…...Details to this trip are for members only.Try it for 30 days for free. (We'll even send you a reminder before your first billing.) Already a member? Log in here (and be sure to check the "remember me" box.)Login problems? Click here.