As of July 2015, Allegiant Air operates nonstop flights from South Bend International Airport to Las Vegas, Phoenix and three destinations in Florida: Orlando, Punta Gorda and St. Petersburg. Passengers can access many more destinations by connecting through those airports.
Allegiant Air regularly flies twice weekly between South Bend and all five destinations as of July 2015. Flights between South Bend and Las Vegas, Orlando and Punta Gorda operate in both directions on Mondays and Fridays. Flights between South Bend and Phoenix and St. Petersburg operate in both directions on Sundays and Thursdays. The airline sometimes adds additional flights, particularly around the Thanksgiving and Christmas holidays. All five locations with nonstop flights to South Bend are major destinations for the airline offering many connecting flights. For example, Allegiant flies to 48 destinations from Las Vegas and 56 from Orlando. The airline also says that it adds new flights often.
Travelers can access more nonstop destinations via Allegiant by flying from other nearby airports. Allegiant operates direct flights between Fort Wayne, Indiana, and Myrtle Beach, South Carolina; between Grand Rapids, Michigan, and Fort Lauderdale, Florida; and between Indianapolis and Myrtle Beach, Fort Lauderdale and New Orleans. Direct flights from South Bend are also available on other carriers between South Bend and Atlanta, Chicago, Detroit, Minneapolis and New York City.