Sherpa eVisa Help by Destination Oman How long can I stay in Oman with the tourist eVisa? Amara January 30, 2021 08:50 A single entry tourist eVisa allows you to stay in Oman for up to 30 days. Related articles I'm trying to check in to my flight. Where is my eVisa number? Can I get a Visa on arrival? My travel date changed, what do I do? How long can I stay in Mexico with my eTA?