$42 Cheap Flights from St. Louis (STL) to Las Vegas (LAS)

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

Prices were available within the past 7 days and start at $42 for one-way flights and $84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Frontier Airlines
Spirit Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flights from St. Louis (STL) to Las Vegas (LAS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$84
Distance
1368 mi
Average flight time
1 hour 32 mins

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 $42 now!

Frequently asked questions

How much is a flight from Lambert Field to Harry Reid Airport (formerly McCarran Airport)?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between St. Louis Lambert International Airport and Harry Reid Airport (formerly McCarran Airport) start from $84. Book today to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Harry Reid Airport (formerly McCarran Airport)?
Most flights can be canceled online, but each air carrier has a different set of terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from St. Louis Lambert International Airport to LAS that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for St. Louis Lambert International Airport to Harry Reid Airport (formerly McCarran Airport) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Lambert Field to Harry Reid Airport (formerly McCarran Airport)?
It’s around 1367 mi between Lambert Field and LAS, so you’ll be flying for a while. Keep yourself entertained with things like crossword puzzles or a good old-fashioned book.
Which airlines fly direct from Lambert Field to Harry Reid Airport (formerly McCarran Airport)?
There are several airlines that fly from STL to Harry Reid Airport (formerly McCarran Airport). Southwest Airlines (WN) is a popular option, offering 108 flights on this route each month. Offering 39 flights a month on this route, Frontier Airlines (F9) is another good option.
Are St. Louis Lambert International Airport to Harry Reid Airport (formerly McCarran Airport) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some of the cheapest airfares from STL to LAS emerging a few weeks before the departure date. If you’d rather plan ahead of time, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines publish prices so far in advance.

*Available for a fee on select flights. Terms apply.