Headed out on vacation soon? It might take longer than you think.

Riders of the Mukilteo-Clinton ferry route should prepare for delays as smaller boats will continue to service the route for the foreseeable future.

According to Justin Fujioka, a spokesperson for Washington State Ferries, the 144-car Suquamish was originally scheduled to replace the 90-car Sealth, which has been serving the route for the past month.

Instead, the Suquamish will replace the 144-car Tokitae July 1 when it heads to the shipyard for maintenance.

This will likely make for lengthy lines over the next few weekends and the Fourth of July holiday. Pack your patience, a book, possibly even lunch.

As the past couple of weeks have shown, even weekday travel can incur a wait time of multiple hours. Early Thursday afternoon, the ferry system issued an alert for a two-hour wait for both Mukilteo and Clinton ferry terminals.

Beginning in mid-July, the 124-car Kitsap is slated to replace the small Sealth through early September.

One-boat service will continue throughout the summer for the Coupeville-Port Townsend route, although officials are considering temporarily adding a second boat for the Wooden Boat Festival Sept. 6-8.