Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Wausau as you normally would.
For a flight from Glasgow to Wausau, you will be flying into Central Wisconsin. Wausau Central Wisconsin (CWA) is just 12.6 mi from the centre vof the city. Central Wisconsin is the only Wausau airport and it handles 0 inbound flights from Glasgow per day. 1 airline has flights to Wausau Central Wisconsin from Glasgow on a regular basis.
KLM is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.