￥28,680 Cheap Flights from St. Louis (STL) to Las Vegas (LAS)

View ￥28,680 flight on Thu, Jul 31, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Harry Reid Intl. Airport (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 ￥28,680 for one-way flights and ￥48,650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jul 31 - Mon, Aug 4
STL
St. Louis
LAS
Las Vegas
￥48,650 Roundtrip, found 6 days ago
￥48,650
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 31 from St. Louis to Las Vegas, returning Mon, Aug 4, priced at ￥48,650 found 6 days ago
Delta
Fri, Jul 11 - Wed, Jul 16
STL
St. Louis
LAS
Las Vegas
￥52,310 Roundtrip, found 6 days ago
￥52,310
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Jul 11 from St. Louis to Las Vegas, returning Wed, Jul 16, priced at ￥52,310 found 6 days ago
American Airlines
Thu, Jul 31 - Mon, Aug 4
STL
St. Louis
LAS
Las Vegas
￥55,320 Roundtrip, found 6 days ago
￥55,320
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 31 from St. Louis to Las Vegas, returning Mon, Aug 4, priced at ￥55,320 found 6 days ago
American Airlines
Fri, Jul 11 - Wed, Jul 16
STL
St. Louis
LAS
Las Vegas
￥57,360 Roundtrip, found 6 days ago
￥57,360
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 11 from St. Louis to Las Vegas, returning Wed, Jul 16, priced at ￥57,360 found 6 days ago
American Airlines
Thu, Jul 31 - Mon, Aug 4
STL
St. Louis
LAS
Las Vegas
￥58,540 Roundtrip, found 6 days ago
￥58,540
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 31 from St. Louis to Las Vegas, returning Mon, Aug 4, priced at ￥58,540 found 6 days ago
American Airlines
Fri, Jul 11 - Wed, Jul 16
STL
St. Louis
LAS
Las Vegas
￥58,970 Roundtrip, found 6 days ago
￥58,970
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 11 from St. Louis to Las Vegas, returning Wed, Jul 16, priced at ￥58,970 found 6 days ago

Find the cheapest month to fly from St. Louis (STL) to Las Vegas (LAS)

August is typically the cheapest month to fly

From ￥10,141 - ￥32,697 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Las Vegas (LAS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Harry Reid Intl.
Roundtrip price
￥48,650
Distance
2188 km
Average flight time
1 hour 35 mins

St. Louis to Las Vegas Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Las Vegas.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to LAS flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LAS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from STL to LAS?
If you're planning on traveling from Lambert-St. Louis Intl. Airport (STL) to Harry Reid Airport (formerly McCarran Airport), round-trip flights start from ￥48,650. This price is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't hang about. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to McCarran Intl. Airport (LAS)?
We understand that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from STL 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 LAS flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Lambert Field to Harry Reid Airport (formerly McCarran Airport)?
Lasting around 3 hours and 22 minutes, the flight between Lambert Field and Harry Reid Airport (formerly McCarran Airport) is a great opportunity to do some last-minute planning. How about using some of this time to organize your itinerary in Las Vegas?
How far is the flight from STL to McCarran Airport?
The flight distance from St. Louis Lambert International Airport to McCarran Airport is 2,200 kilometers. Squeeze in a nap or bury your nose in a book and the journey will zip by.
Which airlines fly direct from Lambert Field to Harry Reid Airport (formerly McCarran Airport)?
Many travelers choose to fly with Frontier Airlines (F9) from St. Louis Lambert International Airport to McCarran Airport. This top airline offers 30 flights monthly, so you can pick a flight time that's right for you. Another airline operating on this route is Spirit Airlines (NK). You'll have 21 flights a month to choose from.
Are Lambert Field to LAS flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally score a bargain, with some super cheap fares from St. Louis Lambert International Airport to LAS popping up a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continually --- as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices that far in advance.

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