The last flat I got was during a sprint in a fast group ride, hit a rock during the sprint, but the tire didn't go flat until we were coming to a stop (thankfully!). Since I was towards the front, I was able to get it fixed by the time the end of the group rolled up on us and they didn't really have to wait on me at all. So prob five minutes or less?

Full disclosure, it was the front tire, so that makes it a lil easier, and the tires come off and go back on these wheels very easily, I can roll it on with my hands with no issues, especially when they're warm.