It’s generally more expensive to depart on a Saturday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Travelers have found it’s best to book a flight 45 days in advance to save up to 42% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St Louis to Venice 1-2 weeks in advance for as low as $1,099, or $1,369 for flights within the next 24 hours.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 39% on flights from St Louis to Venice by exploring options for tickets in the evening.