Find a great deal and save up to 7% by booking at least 29 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boise to Spain within the next two weeks, with the cheapest ticket starting at $789.
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Spain. Flights to Spain from Boise in February are about $858 on average during February, but can be found for as low as $412.