Sherpa eVisa Help by Destination Cambodia How long is my Cambodian eVisa valid for? Tessa November 19, 2022 20:58 Your eVisa is valid for 3 months once it has been approved. Related articles Does my child need a separate eVisa for Cambodia? How long does it take for the Cambodian eVisa to get approved? Where can I enter Cambodia using an eVisa? My travel date to Cambodia changed, what do I do? How long does it take for the Cambodian eVisa to be approved?