Considering you'll have to land before 1100 km and that shouldn't take more than an hour and a half, I'd say it's more nitpicking than a real issue. Just take i

Considering you'll have to land before 1100 km and that shouldn't take more than an hour and a half, I'd say it's more nitpicking than a real issue. Just take it into account and go to the toilet beforehand, with some plastic bags or empty bottles for emergencies.