Snowbird season refers to the yearly migration of part-year residents, many of them retirees, who spend winters in warmer states such as Florida, Arizona and Texas and summers farther north. Many of them ship a car each way rather than drive it.
The effect on auto transport is directional. In the fall, demand climbs on routes from the Northeast and Midwest heading south. In the spring, the flow reverses. During those peaks, trucks fill quickly in the busy direction, prices on those routes tend to rise, and pickup windows can stretch. The opposite direction can be easier to book at the same time, because carriers want loads that bring their trucks back.
For dealers and marketplaces in or near snowbird markets, the season matters even if they are not shipping seasonal residents' cars. Retail deliveries on the same routes compete for the same trucks. Quoting early, being flexible on the pickup window and giving an accurate ship date all help.
Because an instant quote is priced at the time it is requested, the same route can quote differently in peak and off-peak months. Our guides on car shipping cost and car shipping transit times cover the seasonal factors in more detail.