ADDENDUM NUMBER 2 TO LEASE AGREEMENT

Exhibit 10.1

ADDENDUM NUMBER 2 TO LEASE AGREEMENT

This is an ADDENDUM NUMBER 2 TO LEASE AGREEMENT (“Addendum”) dated June 23, 2008 (“Lease”) by and between WINDMILL DURANGO OFFICE II, LLC (hereinafter known as “Landlord”) and ALLEGIANT AIR, LLC (hereinafter known as “Tenant”). If any provision(s) contained herein is (are) inconsistent with provision(s) contained in the main body or any other Exhibits of said Lease, then the provision(s) of this Addendum shall control.

SECTION 1.5 of the Lease is amended in its entirety to now read as follows:

The building of which the Premises are a part (the “ Building ”) and any other buildings or improvements on the real property (the “ Property ”) located at 8350 South Durango, Las Vegas, Nevada and further described at Exhibit “B” as “Two Story Office 2”. The Project is known as Durango Commons. (See Section 2.1)

SECTION 1.6 of the Lease is amended in its entirety to now