If you are a Qatar Airways passenger transiting in Qatar for a period of time between 5 and 96 hours, it is advisable that you apply for the Qatar Transit Visa via Qatar Airways ahead of your visit. The Transit Visa is free of charge, and valid for up to 96 hours (4 days), and open to all nationalities—and you will receive it electronically prior to your trip. If you do not arrange for a Transit Visa ahead of your visit, you may still be able get a visa waiver, but entry will be at the discretion of the immigration officer, depending on the length of your transit time as indicated on your onward flight ticket. In general, at least a one night’s stay is required for use of the transit visa waiver.