I am wondering if getting the Hawaiian Airlines credit card is the best option for this scenario or if we should wait to get that credit card for another Hawaii trip.

• Family of 3 (two adults, one child age 7)
• Flying from Las Vegas
• to Hawaii - Maui
• August 2017
• excellent credit, will easily get the card
• already have AA credit card with 36000 unused miles available
• already have Capital One Venture but used initial bonus miles
• earned companion pass on Southwest (only relevant if it's cheaper to fly SW to LA and then another airline to HI)

Goal is to get the lowest cost flight possible. Not too interested in upgrades.

Suggestions?