In 2006, Mesa formed go!
in the Hawaiian Islands, using five Bombardier CRJ aircraft from its Honolulu hub.
It established a code share with Mokulele Airlines, which served airports that cannot accept jet aircraft and provide point-to-point service in between the islands with Cessna Caravan turboprops.
The codeshare with Mokulele was later replaced by one with Island Air, which was itself later replaced by a joint venture with Mokulele dubbed go!
Mokulele.
The airline ceased operations in Hawaii on April 1, 2014.

Mesa's go!
was involved in multiple lawsuits with Hawaiian Airlines and Aloha Airlines and was also investigated by the Federal Aviation Administration for an incident on February 13, 2008 where both pilots fell asleep during a regularly scheduled 36-minute flight between Honolulu and Hilo.
go!
's flight 1002 overshot Hilo Airport by 15 miles (24 km), remaining 21,000 feet (6,400 m) in the air as they missed the destination.
Air traffic controllers were unable to reach the two pilots for 25 minutes, after which contact was re-established and the aircraft returned for a safe landing in Hilo.

Mesa's go!
was also blamed for the March 31, 2008 shutdown of Aloha Airlines due to "predatory fares".
In 2006, Mesa formed go! in the Hawaiian Islands, using five Bombardier CRJ aircraft from its Honolulu hub. It established a code share with Mokulele Airlines, which served airports that cannot accept jet aircraft and provide point-to-point service in between the islands with Cessna Caravan turboprops. The codeshare with Mokulele was later replaced by one with Island Air, which was itself later replaced by a joint venture with Mokulele dubbed go! Mokulele. The airline ceased operations in Hawaii on April 1, 2014.
Mesa's go! was involved in multiple lawsuits with Hawaiian Airlines and Aloha Airlines and was also investigated by the Federal Aviation Administration for an incident on February 13, 2008 where both pilots fell asleep during a regularly scheduled 36-minute flight between Honolulu and Hilo. go!'s flight 1002 overshot Hilo Airport by 15 miles (24 km), remaining 21,000 feet (6,400 m) in the air as they missed the destination. Air traffic controllers were unable to reach the two pilots for 25 minutes, after which contact was re-established and the aircraft returned for a safe landing in Hilo.
Mesa's go! was also blamed for the March 31, 2008 shutdown of Aloha Airlines due to "predatory fares".
Mesa Airlines