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

Flights overview

Useful information for finding cheap flights from Las Vegas to St. Louis and booking your next trip

Cheapest round-trip flights	$123	Frontier Nonstop 4 hr Fri, Mar 13 — Sun, Mar 22	The cheapest round-trip flight from Las Vegas to St. Louis is currently $123
Cheapest one-way flight	$59	Frontier Nonstop 4 hr Wed, Mar 11	The cheapest one-way flight from Las Vegas to St. Louis is currently $59
Last-minute weekend getaway	$360	Frontier Nonstop 4 hr Thu, Feb 12 — Mon, Feb 16	The cheapest last-minute weekend getaway from Las Vegas to St. Louis is currently $360
Cheapest business class flights	$382	Frontier Nonstop 4 hr Thu, Apr 16 — Sat, Apr 25	The cheapest business class round-trip flight from Las Vegas to St. Louis is currently $382

Fastest flight	3 hr 5 min	The fastest nonstop flight from Las Vegas to St. Louis takes 3 hr 5 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Las Vegas to St. Louis is typically February. The most expensive month to fly is typically June.

February Cheapest	Typical prices: $105–260
June Most expensive	Typical prices: $220–340

Popular airlines from Las Vegas to St. Louis

Southwest

Nonstop

from $279

Typical price: $310–600

31 weekly nonstop flights

LAS - STL Every day

1383 weekly connecting flights

LAS - STL Every day
American

from $199

Typical price: $290–570

361 weekly connecting flights

LAS - STL Every day
United

from $233

Typical price: $290–620

306 weekly connecting flights

LAS - STL Every day
Delta

from $233

Typical price: $305–700

255 weekly connecting flights

LAS - STL Every day
Frontier

Nonstop

from $123

Typical price: $150–345

4 weekly nonstop flights

LAS - STL Every Mon, Thu, Fri, Sun

19 weekly connecting flights

LAS - STL Every day
Alaska

from $399

Typical price: $410–830

21 weekly connecting flights

LAS - STL Every day

Popular airports near Las Vegas

Harry Reid International Airport (LAS)

Las Vegas United States 16 min 6 mi
St. George Regional Airport (SGU) (SGU)

St. George United States 1 hr 52 min 108 mi
Boulder City Municipal Airport (BLD)

Boulder City United States 26 min 22 mi
Ontario International Airport (ONT)

Ontario United States 3 hr 32 min 201 mi

Popular airports near St. Louis

St. Louis Lambert International Airport (STL)

St. Louis United States 21 min 12 mi
General Wayne A. Downing Peoria International Airport (PIA)

Peoria United States 2 hr 35 min 143 mi
Columbia Regional Airport (COU)

Columbia United States 2 hr 6 min 109 mi
Indianapolis International Airport (IND)

Indianapolis United States 3 hr 29 min 222 mi

Frequently asked questions about flying from Las Vegas to St. Louis

The cheapest flights from Las Vegas to St. Louis are usually in February. Typical ticket prices in February range from $105 to $260.

The cheapest round-trip flight from Las Vegas to St. Louis recently found on Google Flights was with Frontier from $123. The cheapest one-way flight was with Frontier from $59.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Las Vegas to St. Louis is $279, flying from May 7 to May 16.
The cheapest American flight from Las Vegas to St. Louis is $199, flying from May 2 to May 9.
The cheapest United flight from Las Vegas to St. Louis is $233, flying from Apr 16 to Apr 22.
The cheapest Delta flight from Las Vegas to St. Louis is $233, flying from May 7 to May 13.
The cheapest Frontier flight from Las Vegas to St. Louis is $123, flying from Mar 13 to Mar 22.
The cheapest Alaska flight from Las Vegas to St. Louis is $399, flying from Feb 26 to Mar 4.

The cheapest round-trip flight from Las Vegas to St. Louis starts at $123 from Fri, Mar 13 to Sun, Mar 22. The cheapest one-way flight starts at $59 and departs on Wed, Mar 11.

3 hr 5 min is the shortest flight time from Las Vegas to St. Louis.

Apr–Sep is the most popular time to visit, coinciding with hot, humid summer and events like Fair St. Louis, a huge Fourth of July festival at Forest Park, and the Taste of St. Louis food festival (Sep). Weather in winter is cold, with occasional snow.

It's easy to use Google Flights to find the cheapest days to fly from Las Vegas to St. Louis.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Las Vegas to St. Louis really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Las Vegas to St. Louis.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 31 nonstop flights and 1,383 connecting flights per week. Southwest flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .

Other popular airlines flying from Las Vegas to St. Louis are:

American offers 361 connecting flights per week. American flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .
United offers 306 connecting flights per week. United flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .
Delta offers 255 connecting flights per week. Delta flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .
Frontier offers 4 nonstop flights and 19 connecting flights per week. Frontier flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .
Alaska offers 21 connecting flights per week. Alaska flies from Harry Reid International Airport (LAS) to St. Louis Lambert International Airport (STL) .

The number of connecting flights refers to distinct flights with at least one stop between Las Vegas and St. Louis.

The cheapest round-trip flight from Las Vegas to St. Louis recently found on Google Flights was with Frontier from $123. The cheapest one-way flight was with Frontier from $59.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Las Vegas to St. Louis is $279, flying from May 7 to May 16.
The cheapest American flight from Las Vegas to St. Louis is $199, flying from May 2 to May 9.
The cheapest United flight from Las Vegas to St. Louis is $233, flying from Apr 16 to Apr 22.
The cheapest Delta flight from Las Vegas to St. Louis is $233, flying from May 7 to May 13.
The cheapest Frontier flight from Las Vegas to St. Louis is $123, flying from Mar 13 to Mar 22.
The cheapest Alaska flight from Las Vegas to St. Louis is $399, flying from Feb 26 to Mar 4.

Southwest and Frontier fly direct from Las Vegas to St. Louis.

There are 31 Southwest direct flights from Las Vegas to St. Louis per week. Flights are available every day.
There are 4 Frontier direct flights from Las Vegas to St. Louis per week. Flights are available on Monday, Thursday, Friday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Las Vegas and St. Louis at price $360 is offered by Frontier from Thu, Feb 12 to Mon, Feb 16.

Southwest and Frontier fly direct from Las Vegas to St. Louis.

There are 31 Southwest direct flights from Las Vegas to St. Louis per week. Flights are available every day.
There are 4 Frontier direct flights from Las Vegas to St. Louis per week. Flights are available on Monday, Thursday, Friday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Las Vegas to St. Louis on a daily basis.

The cheapest direct (nonstop) round-trip flights between Las Vegas and St. Louis start at $123 from Fri, Mar 13 to Sun, Mar 22 with Frontier.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Las Vegas to St. Louis, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Las Vegas and St. Louis start at $382 from Thu, Apr 16 to Sat, Apr 25 with Frontier.

The cheapest economy class round-trip flights between Las Vegas and St. Louis start at $123 from Fri, Mar 13 to Sun, Mar 22.

To book business class trips from Las Vegas to St. Louis, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Las Vegas and St. Louis starts at $360 from Thu, Feb 12 to Mon, Feb 16 with Frontier.

The cheapest last-minute deal between Las Vegas and St. Louis at price $360 is offered by Frontier from Thu, Feb 12 to Mon, Feb 16.

To find last-minute flight deals from Las Vegas to St. Louis, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.