Get round-trip flights on Southwest Airlines with rates from $174 on Airfarewatchdog. We found the lowest fares on flights between Minneapolis and Denver with advanced booking. Flights from New York to Atlanta start at $196. You can enter your own travel dates and locations to find fare prices on Airfarewatchdog. Some flights require advance bookings or travel on specific days of the week. There's also a sale going on at Southwest Vacations, where you can save $100 on ski packages. Taxes, fees, and restrictions may apply.