HONOLULU go!, the interisland Hawaii division of Mesa Air Group, Inc. (NASDAQ: MESA), celebrated its 139,000th passenger today. After flying on go! as the 139,000th passenger, Celeste Tanabe of Waipahu, Oahu was given the next cheapest way to get around the islands: a new, blue Diamo Retro moped as well as four round trip tickets on go!. Celeste was surprised this morning when she arrived in Honolulu from Kahului. go! chose to honor its 139,000th passenger to acknowledge its signature $39* one-way interisland airfare.

"I’m going to tell my family about flying go! because the planes are nice, on time and they made the fares reasonable," said Tanabe.

"Today has been great! We wanted to do something special to thank the passengers who have flown with us," said Joe Bock, Chief Marketing Officer of go!. "We work hard to provide high quality interisland flights at the lowest price and appreciate the people of Hawaii who continue to support go! and low fares," he continued.

Tanabe was traveling to Maui with her husband, James to visit his family and said, "It’s our first anniversary, it’s the first time we flew on go! and it’s the first time I’ve won anything!"

Since its debut, go! has been known for bringing $39* one-way interisland fares to Hawaii. In the first two months of service, the number of passengers flying go! has exceeded the airline’s expectations.

"From the beginning, our goal has always been to offer families, friends and business people a high-quality and low-cost airline for travel between the islands. We are delighted by the reception we have received," said Jonathan Ornstein, Mesa Air Group Chairman and CEO.

Mesa launched its independent, interisland Hawaii service on June 9 with three aircraft. go!’s flight schedule doubled shortly thereafter on June 30 with the arrival of two additional aircraft. The introduction of larger regional jets is currently planned for 2007. For the period of June 9 through 30, go! had an overall completion factor of 100% and for the month of July had an overall completion factor of 99.9%. go!’s on time arrival rate for June was 88.9% and 84.9% for July.

All passengers on board the lucky winner’s 10:30 a.m. Kahului to Honolulu flight were given go! t-shirts as a sign of the airline’s appreciation. At Honolulu International Airport, go! employees handed out chocolates from a local manufacturer as additional thanks.

go! now offers 62 flights daily from Honolulu to the destinations of Lihue, Kahului, Kona and Hilo. Passengers who register for go! Miles frequent flyer program are able to earn go! Miles redeemable for travel and can earn 500 miles just by registering online. Additional information is available and tickets can be booked online at www.iflygo.com or by calling toll free 1-888-IFLYGO2.

go! also offers special reduced fares for military personnel, their spouses and dependents. Active duty personnel from every branch of the U.S. military are eligible, including the Army, Navy, Air Force, Marines and Coast Guard, as well as active duty members of the Reserve and National Guard. In addition to these discounts, go! is also waiving ticket change fees for military fares.

Special military fares must be booked via the go! toll-free reservation number at 1-888-IFLYGO2 and are subject to certain restrictions. Seats are limited and may not be available on every flight.