August is one of the best times of the year to fly to Guanajuato from Portland, Maine. Prices for August average $481 per person but you can even find prices for as low as $365. The most expensive prices can be found in the month of December. Opting for a August flight can save you 21% on your journey compared to booking in August
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Guanajuato as you normally would.