To save up to 28% on this flight, we recommend booking at least 56 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Boise to Guam from $1878 1-2 weeks out and tickets from $2255 for flights departing within the next 72 hours.
March is one of the best times of the year to fly to Guam from Boise. Prices for March average $1872 per person but you can even find prices for as low as $1018. The most expensive prices can be found in the month of February. Opting for a March flight can save you 7% on your journey compared to booking in March