United Airlines travel packages, airline deals, and best deals on Flights to go. We now offer you some of the best airline deals under the sun to Mexico and the Caribbean. You'll find the airfare is priced to go. We have special package airline deals and hot offers from our hotel and car partners too. Plenty of bonus miles are available to get you packing and lazing on a glorious beach somewhere...very soon. Fly to Mexico, the Caribbean, Cancun, Cozumel, Ixtapa/Zihuatanejo, Los Cabos, Puerto Vallarta, Aruba, Costa Rica (San Jose), Montego Bay, Jamaica, Puerto Rico (San Juan), Punta Cana, DR, St. Maarten, and St. Thomas, For the young and young at heart, Cancun is known for its beach parties on some of the most beautiful beaches in the world, as well as isolated tranquil islands. Cool nightclubs, and eclectic cuisine.