Allegiant Airis showing some cheap June flights from Bellingham to Honolulu, Hawaii.
On Allegiant Air’s site, change the drop-down to ‘Flight Only’ and look for fares in June that are $108.99 after taxes each way.
When booking the fares, you’ll have to navigate through the gauntlet of add-ons (hotels, rental cars, activities) that Allegiant tries to get you to purchase along with the airfare. You can politely refuse each one at the bottom of the page.
Also be aware that Allegiant charges extra for absolutely everything involving the flight!