For most federal contracts and all Department of Defense grants and contracts, approval of foreign travel is required, even if the foreign travel is listed in the approved budget. Requests for approval should be submitted to the funding agency through OCG well in advance of the proposed travel. U.S. airlines do not service the route. No seats are available on the flight. Use of a U.S. airline would cause the traveler to be late for the purpose of the trip.
Prior approval is obtained from the funding agency to use a non-U.S. airline.