Today only, United Airlines has select roundtrip flights to Florida on sale for as low as $322, as noted on Travelzoo. Although we've listed 1-way flights via United for less in the past, this is still a very good price for roundtrip flights to Florida during the Spring Break season. (Some flights offer savings of $100 or more.) Taxes and fees are extra and may be substantial; terms and conditions apply. Advanced purchase and minimum stay requirements vary depending on the route selected. Travel is valid through April 30. Blackout dates apply.