The best pricing can be found in the month of July. Prices to Hawaii from Casper average $778. You can even find prices in July for less than $778, as users have found deals to Hawaii from as low as $645. The month of August appears to be one of the more expensive times to travel to Hawaii from Casper. Flying in the targeted month can save you up to 20%.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Casper to Hawaii as you normally would.