$357 Cheap flight deals from St. Louis (STL) to Siena (FLR)
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This Weekend's Flight Deals from St. Louis to Siena
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $357 One Way, $773 Round Trip from St. Louis to Siena
Prices starting at $773 for return flights and $357 for one-way flights to Siena were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Siena economy flight packages
Alfieri9
Sep 23 - Sep 28
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Jul 5, 2026
Eurostars Florence Boutique
Sep 23 - Sep 28
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Aug 10, 2026
Villa Tolomei Hotel & Resort
Sep 23 - Sep 28
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Jul 7, 2026
More About Flying To Siena from St. Louis
Route Information for Flights from St. Louis to Siena
Origin Airport IATA Code | STL |
|---|---|
Destination Airport IATA Code | FLR |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
St. Louis to Siena
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.