Due to multiple factors, expect to potentially pay more when booking in September. For low rates, October can be a great choice for travel to South Pacific. Flights to South Pacific from El Paso in October are about $1,422 on average during October, but can be found for as low as $778.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from El Paso to South Pacific as you normally would.