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The cheapest time of year to fly to Las Vegas from St. Louis is January. Most expensive is June
The cheapest day of the week is typically Monday. The most expensive is typically Friday
St. Louis to Las Vegas flights are approximately 42% more expensive in the morning than at noon
Allegiant Air, American Airlines, and Frontier are the most popular carriers operating from St. Louis to Las Vegas
Lambert-St Louis - Las Vegas Harry Reid Intl
Fly from Lambert-St Louis to Las Vegas Harry Reid Intl for the best St. Louis - Las Vegas flight prices
50 days before
The cheapest time to buy a flight from St. Louis to Las Vegas is approximately 50 days to departure
When you’re planning your trip from St. Louis to Las Vegas, the most popular airport-to-airport route is Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport. You may be looking for an airport near Lambert-St Louis Airport to depart from when traveling to Las Vegas and luckily, there are options! You can try Springfield Capital Airport which is located in Springfield or Marion Williamson County Airport which is located in Marion. The least expensive flight option from St. Louis to Las Vegas will typically be STL — LAS during the month of June with an average price of $122 RT.
|Juneyao Airlines||PriceFrom $13||Free Cancellation||Rating|
|Sun Country Air||PriceFrom $61||Free Cancellation||Rating|
I paid extra to board zone 1 they called zone 1-3 at the same time so that was pointless. Crew was unfriendly and I felt like an inconvenience. Wasn’t able to go to a gate had to take a shuttle to the gate and that process was a mess. I won’t fly sun country again unless it is an emergency.
1 / 10
|Spirit Airlines||PriceFrom $69||Free Cancellation||Rating|
We arrived 15 minutes early ,but the luggage take more than 30 minutes to appear.
1 / 10
|Frontier||PriceFrom $72||Free Cancellation||Rating|
The cabin was HOT. We sat there for over 45 minutes with no air.
1 / 10
|American Airlines||PriceFrom $85||Free Cancellation||Rating|
The flights were great and everything worked together well!
1 / 10
|Delta||PriceFrom $131||Free Cancellation||Rating|
It was so cold on the flight, otherwise okay.
1 / 10
|Allegiant Air||PriceFrom $138||Free Cancellation||Rating|
My friend I was going with mom passed away the day before the trip and we had to cancel our trip. Allegiant doesn’t have a refund of any type. Frontier was my return flight and at least offered a partial credit which sucks but beats nothing.
1 / 10
|United Airlines||PriceFrom $157||Free Cancellation||Rating|
Flight was on time
1 / 10
|Alaska Airlines||PriceFrom $163||Free Cancellation||Rating|
There were a lot of people coughing in the plane and they weren’t wearing masks.
1 / 10
Spirit Airlines operates around 6 flights from St. Louis to Las Vegas every week. The average price of these flights found in the last 72 hours has been $179, but momondo users have found Spirit Airlines deals from St. Louis to Las Vegas from as low as $69 round-trip. Spirit Airlines has been scored 6.2/10 in 821 reviews.
Another popular option for St. Louis to Las Vegas flights is Frontier (6.2/10, 663 ratings). Frontier flies from St. Louis to Las Vegas around 6 times per week, with deals starting from $72 round-trip and rising to an average price of around $175.
Due to the global impact of COVID-19, some of our airline partners operating flights from Lambert-St Louis to Las Vegas Harry Reid Intl, such as Spirit Airlines, Frontier, and American Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.
The straight-line distance from Lambert-St Louis to Las Vegas Harry Reid Intl is 1374.1 mi. 3h 23m is a normal flight duration for this route.
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