$69 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 $69 One Way, $113 Round Trip from Las Vegas to O'Fallon
Prices starting at $113 for return flights and $69 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 Wildwood Hotel
Mar 17 - Mar 20
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Oct 16, 2025
The Cheshire
Mar 17 - Mar 20
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Sep 2, 2025
Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Mar 17 - Mar 20
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Jan 18, 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
Looking for cheap Las Vegas to O'Fallon flights? Orbitz has the cheapest air fares for flights from Las Vegas to O'Fallon. Plus, with our cutting-edge mobile tools, travel planning has never been easier or more wallet-friendly.
Mobile Deals and Steals
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Cheap Air Ticket Prices Guaranteed
Orbitz is your number one source for low fares for Las Vegas to O'Fallon flights. Our low price guarantee on domestic and international air tickets give you great savings for a perfect trip to O'Fallon. Need hotels too? You can book them last minute on your mobile phone.
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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.