Combine wine, limoncello, soda, and orange liqueur in a large pitcher.
Add orange and lemon slices. Stir gently and chill for at least 1 hour.
To serve, fill glasses with ice, pour sangria, and garnish with mint.
Notes
Make it ahead—the flavor gets better! Try sparkling wine for extra fizz. Add extra fruit—grapefruit, lime, berries, or pineapple. Use sugar or syrup to sweeten to taste.