Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Manila to Aspen as you normally would.
MNL and ASE are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. MNL to ASE refers to a flight route from Manila Ninoy Aquino Intl Airport to Aspen Pitkin County Airport.