How long can tuna with mayo last in a air tight container?

At room temperature: Tuna salad with mayonnaise should not be left out at room temperature for more than 2 hours, due to the risk of bacterial growth.

In the fridge: Tuna salad with mayonnaise can be stored in the refrigerator for up to 3 days.

In the freezer: Tuna salad with mayonnaise can be frozen for up to 2 months. However, the mayonnaise may become watery and separated when thawed, so it is best to use it within 1 month for best quality.

When storing tuna salad with mayonnaise, it is important to keep it in an airtight container to prevent spoilage and cross-contamination.