$122 Cheap flight deals from Las Vegas (LAS) to O'Fallon (STL)
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This Weekend's Flight Deals from Las Vegas to O'Fallon
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 $122 One Way, $215 Round Trip from Las Vegas to O'Fallon
Prices starting at $215 for return flights and $122 for one-way flights to O'Fallon were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
O'Fallon economy flight packages
The Cheshire
Sep 3 - Sep 8
Las Vegas (LAS) to St. Louis (STL)
St. Louis (STL) to Las Vegas (LAS)
Reviewed on Jul 21, 2026
The Wildwood Hotel
Sep 3 - Sep 8
Las Vegas (LAS) to St. Louis (STL)
St. Louis (STL) to Las Vegas (LAS)
Reviewed on Jul 21, 2026
Ameristar Casino Resort and Spa
Sep 3 - Sep 8
Las Vegas (LAS) to St. Louis (STL)
St. Louis (STL) to Las Vegas (LAS)
Reviewed on Jul 20, 2026
More About Flying To O'Fallon from Las Vegas
Route Information for Flights from Las Vegas to O'Fallon
Origin Airport IATA Code | LAS |
|---|---|
Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Las Vegas to O'Fallon
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O'Fallon Airports
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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.