The drones will be used on the 164-mile Skyway project connecting towns and cities, including Cambridge and Rugby.
It is part of a £273m funding package for the aerospace sector which will be revealed by Business Secretary Kwasi Kwarteng on Monday.
Other projects include drones delivering mail to the Isles of Scilly and medication across Scotland.
Mr Kwarteng is to announce the news at the Farnborough International Airshow - the first to be held since 2019.
He will say the funding will "help the sector seize on the enormous opportunities for growth that exist as the world transitions to cleaner forms of flight".