MV Fairweather is a catamaran ferry built by Derecktor Shipyards in Bridgeport, Connecticut for the Alaska Marine Highway System entering service 2004.

After being laid up since 2019, in March 2021 it was sold to Servicios y Concesiones Maritimas Ibicencas for service between Mallorca and Menorca.

Much of coastal Alaska is inaccessible by road, leaving many widely dispersed communities dependent on weather-affected flights and long ferry rides.

[2] She was built by Derecktor Shipyards in Bridgeport, Connecticut as part of a two-ship contract that included sister-ship MV Chenega.

Fairweather is equipped with an active interceptor roll control system to increase passenger comfort in rough seas and swells.

[11] Electrical power on the ship is provided by four Northern Lights M6125T generators, each capable of producing 185 kW.

[12] Fairweather was originally planned for a Sitka-Juneau high speed ferry link, with the ship homeported in Sitka.

[13] However, the state changed its plans and decided to homeport the ferry in Juneau, creating an uproar in Sitka.

In September 2004 one of her engines failed because improperly installed parts caused water to leak into the exhaust system.

[18] The large, open ducts that fed seawater into the jet pumps sucked in tree-sized logs which jammed their operation.

Fairweather was under repair until early July 2006, when she returned to service with three new engines, four new reduction gears, and four new drive shafts.

Bargaining with the Inlandboatman's Union, the Marine Engineers' Beneficial Association, and the International Organization of Masters, Mates & Pilots broke down and Fairweather was idled in January 2005.

As a general matter, she sailed less in the winter when early darkness made avoiding floating logs that would jam the water jets difficult, and when travel in Southeast Alaska reached a low point.

Her high speed came at the sacrifice of carrying heavy loads, leaving her with more limited capacity for cars and trucks than traditional ferries.

In late 2006, the Alaska Marine Highway System began a study for a new Lynn Canal ferry.

While Tazlina requires twice as long to complete the round-trip as Fairweather, she can carry 53 cars instead of 31, and the state expects to save $400,000 per year in fuel costs.

[34] In October 2019 the State of Alaska issued a public notice seeking a broker to sell Fairweather.

[35] In March 2021 she was sold by the Alaska Department of Transportation & Public Facilities to Servicios y Concesiones Maritimas Ibicencas along with sister ship MV Chenega for service in the Balearic Islands of Spain.

[39] In the summer of 2022, Trasmapi began a new ferry service between Alcudia on Mallorca, and Ciutadella on Menorca using Fairweather.