$74 Cheap flight deals from Las Vegas (LAS) to O'Fallon (STL)

Orbitz has your discount air ticket deals for flights from Las Vegas to O'Fallon. The guaranteed low prices from flights and hotels to car rentals and vacation packages make Orbitz the perfect travel website for budget trip planning.

Use Orbitz to Earn Frequent Flyer Miles

You know you can find great fares with Orbitz—but did you know you don’t have to give up earning miles or points towards your frequent flyer program? If you’re a member of a frequent flyer program, you can use Orbitz to find bargain prices for flights from Las Vegas to O'Fallon and still earn points or miles. All you have to do is add your frequent flyer account number as you book your tickets online. After you complete your travel plans, you can choose to keep your account number in your personal account profile so that you can automatically add it to your next Orbitz reservation.

Orbitz Keeps You Up-to-Date With Instant Flight Alerts

While Orbitz gives you access to cheap tickets for Las Vegas to O'Fallon flights, the travel site also offers free email, voice, or text message alerts to keep you informed of any abrupt changes or delays that affect your travel. You can even choose to have the alerts sent to up to six of your mobile or email contacts to keep your friends in the loop.

Bargain Las Vegas to O'Fallon Flights With Mobile Apps

Download the cutting-edge Orbitz app for either Android or iPhone, and use it to check on the status of your upcoming flights from Las Vegas to O'Fallon at any time. These apps also make it easy for you to book discount hotel rates in your destination city and check for deals on future Las Vegas to O'Fallon flights.