To find the return flight distance between Patna to Agra via Mughal Sarai, Allahabad, Kanpur, start with entering the locations in the control and click on Return Flight Distance. You can also add multiple destinations in between while returning from a location. If you are not aware of the routes, you can check the
Patna to Mughal Sarai Route via Mughal Sarai, Allahabad, Kanpur.