$354 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 $354 One Way, $813 Round Trip from St. Louis to Siena
Prices starting at $813 for return flights and $354 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
The Hoxton Florence
Jul 12 - Jul 18
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Apr 1, 2026
Monastero di Cortona Hotel & Spa
Jul 12 - Jul 18
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Sep 15, 2023
Villa Neroli
Jul 12 - Jul 18
St. Louis (STL) to Florence (FLR)
Florence (FLR) to St. Louis (STL)
Reviewed on Aug 14, 2025
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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Orbitz looks for the best deals on St. Louis to Siena flights for you. Mix and match airlines for your departing and return flights to fit your travel schedule and budget.
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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.