Currently, August is the cheapest month in which you can book a flight from St. Augustine to Des Moines (average of $336). Flying from St. Augustine to Des Moines in June is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from St. Augustine to Des Moines in the morning. Doing so could potentially save you 49% on the flight price compared to flying in the evening, which is usually more expensive.