
$35 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 $35 One Way, $68 Round Trip from Las Vegas to O'Fallon
Prices starting at $68 for return flights and $35 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

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Mar 11 - Mar 13
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Sep 9, 2024

Hampton Inn By Hilton St Louis Airport
Mar 11 - Mar 13
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Oct 26, 2025

Ameristar Casino Resort and Spa
Mar 11 - Mar 13
Las Vegas (LAS) to St. Louis (STL)
Reviewed on Dec 2, 2025
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
If you are looking to get guaranteed low prices for Las Vegas to O'Fallon flights then Orbitz is the place to go. We use cutting edge mobile tools to find the best deals on air tickets and to keep you updated on delays and changes.
Get Package Savings by Booking Flights and Hotels at the Same Time
Using the Orbitz Matrix display, you can see how much you will save on flights from Las Vegas to O'Fallon if the discount fare is combined with a hotel. You can also look at hotel reviews, photos and maps of the area, so it will be convenient to make your budget travel plans.
Orbitz for Business Helps Corporations save Money
Orbitz can assist all businesses from the small to major corporations with discounts on flights from Las Vegas to O'Fallon. We fine- tune your needs for Las Vegas to O'Fallon flights and optimize your plans by assessing your business and coming up with ways for you to save on air tickets.
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You can use the Orbitz website to check-in for your flights from Las Vegas to O'Fallon. You can also make changes to your schedule or even cancel a flight.
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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.
