Cheap Flights from St. Louis (STL) to Las Vegas (LAS)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Harry Reid Intl. Airport (LAS)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save on select hotels after you book a flight*
  • payments icon

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to McCarran Intl. Airport (LAS)?
Frontier Airlines operates a direct flight leaving from Lambert Field at 7:51PM and touching down at Harry Reid Airport (formerly McCarran Airport) at 9:34PM — a total flying time of 3 hours and 43 minutes. Choose a seat, pack a few things to keep you amused and the time will pass by quickly.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Harry Reid Airport (formerly McCarran Airport) last minute?
Being spontaneous is a fabulous way to travel, but it's not always the best way to nab a cheap plane ticket. Think about booking your Lambert-St. Louis Intl. Airport (STL) to McCarran Intl. Airport (LAS) journey ahead of time instead of leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you get to McCarran Intl. Airport (LAS)!
What airports do you fly into for Las Vegas from St. Louis?
McCarran Intl. Airport (LAS), Henderson Executive Airport (HSH) and North Las Vegas Airport (VGT) are your options when flying from St. Louis to Las Vegas. Approximately 3 kilometers southeast of central Las Vegas, McCarran Intl. Airport (LAS) is the city's main entry point. Keep in mind things like flight departure and arrival times and the distance to your hotel before deciding where you fly into. Thomas and Mack Center and Fashion Show Mall are a couple of terrific attractions to put on your must-see list when you arrive at your destination.
What are the most popular departure times for flights from STL to LAS?
For Frontier Airlines flights heading from STL to McCarran Airport, the most popular period is between 7:00 PM - 8:00 PM. If you want to avoid delays, fly in the morning. This way you can avoid the heavy air traffic that builds up in the skyways in the afternoon.
Can I change the date of my flight from STL to LAS?
You can quickly and easily make changes to your Lambert-St. Louis Intl. Airport (STL) to McCarran Intl. Airport (LAS) flight via the Expedia Trips portal. Before making any amendments, look over the fare rules in your itinerary to find out what you're allowed to do and if any charges apply. Some carriers charge a change fee per person, on top of any difference in fares. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also browse our Customer Service portal for more useful advice and to connect with our Virtual Agent.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Harry Reid Intl.
Distance
2188 km
Average flight time
1 hour 39 mins

Book with confidence

Book with confidence

St. Louis to Las Vegas Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Las Vegas offer the perfect respite. Not only does exploring Las Vegas provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Las Vegas may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from STL to LAS today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Las Vegas are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Las Vegas more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Las Vegas is now!

St. Louis to Las Vegas Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia