When possible, reservations should be made as far in advance as needed to take advantage of advance purchase discounts. This is often one month in advance. USNH will not reimburse for the value of frequent flyer miles used for USNH travel. If the traveler uses an indirect route or interrupts travel via direct route for personal convenience or vacation, any additional expenses above the lowest-priced fare available for a direct route will be borne by the traveler. The traveler should include a statement from the travel agency that indicates the cost of the business portion of the trip.
Airline tickets are often non-refundable.
The traveler is responsible for analyzing the cost and risks associated with this type of ticket. The traveler should weigh the risk of not using the ticket against the benefit of the reduced cost of the ticket. These travel costs will not be reimbursed. This information should be included when the traveler is E-mailing for preapproval. It is important to note that most sponsors do not allow travel on a non-U.S. flag carrier, regardless of cost savings.