To St. Louis

Cheap Flights from Las Vegas to St. Louis

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Las Vegas

RatePunk searches hundreds of travel sites at once for deals on flights to St. Louis

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Las Vegas to St. Louis

Explore current cheapest deals departing from Las Vegas to St. Louis

Round trip

Sort by: Cheapest

July 22 - July 27

Cheapest

LAS - St. Louis

$201

$96

Round trip

July 23 - July 27

LAS - St. Louis

$205

$97

Round trip

August 6 - August 23

LAS - St. Louis

$150

$97

Round trip

August 13 - August 16

Best

LAS - St. Louis

$182

$97

Round trip

July 21 - July 30

Earliest

LAS - St. Louis

$193

$97

Round trip

July 21 - August 16

Earliest

LAS - St. Louis

$181

$97

Round trip

July 22 - July 30

LAS - St. Louis

$195

$97

Round trip

July 22 - August 1

LAS - St. Louis

$187

$97

Round trip

August 7 - August 16

LAS - St. Louis

$163

$97

Round trip

July 23 - August 1

LAS - St. Louis

$193

$97

Round trip

Unlock all 500+ flight deals to St. Louis and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Las Vegas to St. Louis

Right now, 27% of recent fares from Las Vegas to St. Louis are classified as a good price. Fares for this route typically range from $168–$440, with a median of $248. Current fares are significantly above the typical level, suggesting that prices are elevated compared to the usual range for this journey. New deals appear almost daily, so setting up a price alert can help you track fluctuations.

When looking for cheap flights from Las Vegas to St. Louis, the data indicates that April is often the most affordable month, with a median fare of $178. Following closely, June also presents lower prices, with a median of $198. March is another relatively inexpensive option, showing a median fare of $223.

A typical journey from Las Vegas to St. Louis takes about 7h 3m, including connections. This is a medium-haul route, covering a distance of 2202 km. The overall journey time reflects that a meaningful share of itineraries are non-stop, but many flights include connections.

For flights from Las Vegas to St. Louis, 58.1% of recent fares are for non-stop itineraries. This means a meaningful share are non-stop, while the rest connect at least once. When connecting, most itineraries typically involve 2 stopovers.

How much is a round trip from Las Vegas to St. Louis

Regular price: $172 - $328

Prices for flights from Las Vegas to St. Louis are currently below the regular range.

The regular price range for flights from Las Vegas to St. Louis is between $172 and $328. The current lowest deal is $96 with Frontier Airlines, for travel from Jul 22-Jul 27.

now $96

Low $172

High $328

The cheapest time to fly from Las Vegas to St. Louis

The cheapest month to fly from Las Vegas to St. Louis is April, with a median price of $178. The most expensive month is December, with a median price of $666. Prices are generally lower from January to November.

April

Cheapest

Flights from $178

December

Most Expensive

Flights from $666

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Las Vegas to St. Louis

Frontier Airlines

Last-minute flights going from Las Vegas to St. Louis

Thu, Jul 2

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

Frontier Airlines

$223

$119

One-way

Wed, Jul 8

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

Frontier Airlines

$216

$107

One-way

Thu, Jul 9

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

Frontier Airlines

$216

$106

One-way

Thu, Jul 9

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

$297

$194

One-way

Fri, Jul 10

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

American Airlines

$294

$198

One-way

Wed, Jul 15

⌛ Last-Minute

LAS - St. Louis

Las Vegas (LAS) - St. Louis (STL)

Frontier Airlines

$209

$100

One-way

Biggest price drops on these dates for flights from Las Vegas to St. Louis

3 nights

Jul 9 - Jul 12

$216 → $106

51%

1 night

Jul 15 - Jul 16

$209 → $100

52%

4 nights

Jul 15 - Jul 19

$211 → $102

52%

4 nights

Jul 8 - Jul 12

$216 → $107

51%

Popular Airports to fly from Las Vegas to St. Louis

Las Vegas - St. Louis route insights

💸 Price insights

Current fares are below the typical level.

Recent fares from Las Vegas to St. Louis are $96, which is below the typical level.

📅 Best time to fly

April is historically the cheapest month to fly.

Historically, April is the cheapest month to fly from Las Vegas to St. Louis, with a median price of $178.

⏱️ Flight duration

The typical flight duration is 7h 3m.

The typical flight duration from Las Vegas to St. Louis is 7 hours and 3 minutes, covering 2202 km.

✈️ Airlines & availability

Frontier Airlines offers direct flights.

Frontier Airlines offers direct flights from Las Vegas to St. Louis. Approximately 58.1% of deals are direct.

🏆 Airline highlight

Frontier Airlines has a direct deal for $96.

Frontier Airlines has a direct flight deal for $96 from Las Vegas to St. Louis, departing July 22, 2026.

🎯 Booking tip

Deals are frequent for this route.

Deals for flights from Las Vegas to St. Louis are frequent, with over 1 deal per day historically.

Las Vegas main airports to depart from

Harry Reid International Airport (LAS)

Cheapest

Harry Reid International Airport is a convenient option for flights from Las Vegas to St. Louis.

📍 ~10 km from city center (reachable by car or bus)

💸 Flights from ~$96

St. Louis main airports to arrive at

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a convenient arrival airport for your trip to St. Louis.

📍 ~20 km from St. Louis (reachable by car)

💸 Flights from ~$96

Airports nearby St. Louis used as alternative

MidAmerica St. Louis (BLV)

Cheapest

MidAmerica St. Louis (BLV) can be a useful alternative, especially for budget routes on the Illinois side of the metro area.

📍 ~50 km from St. Louis (reachable by car)

💸 Flights from ~$122

Columbia Regional (COU)

Columbia Regional (COU) offers a full range of cabin classes and serves the University of Missouri area.

📍 ~170 km from St. Louis (reachable by car)

💸 Flights from ~$243

Abraham Lincoln Capital (SPI)

Abraham Lincoln Capital (SPI) provides consistent regional service and includes Business class availability.

📍 ~150 km from St. Louis (reachable by car)

💸 Flights from ~$344

General Wayne A. Downing Peoria International (PIA)

General Wayne A. Downing Peoria International (PIA) is a larger regional airport offering multiple cabin classes.

📍 ~230 km from St. Louis (reachable by car)

💸 Flights from ~$142

Central Illinois Regional (BMI)

Central Illinois Regional (BMI) is an alternative for travelers willing to drive into Central Illinois.

📍 ~220 km from St. Louis (reachable by car)

💸 Flights from ~$328

Business & First Class Flight Deals to St. Louis

37% AI deal score

$2,509

Frequently Asked Questions About Flights to St. Louis

Historically, the optimal booking window for flights from Las Vegas to St. Louis is typically 14-27 days before departure. During this period, the average price was around $155. Prices tend to be significantly higher for last-minute bookings, with flights purchased 0-6 days out averaging $1060. For those planning further ahead, flights booked 60+ days in advance had an average price of $262.

Across the trailing quarter, a good price for a flight from Las Vegas to St. Louis was considered to be $168 or less. The median price for this route during the same period was $248. Prices can vary, with 75% of fares observed being $440 or less. Travelers aiming for a budget-friendly option should target fares around the $168 mark.

Historically, April has been the cheapest month to fly from Las Vegas to St. Louis, with a median price of $178. June also offered competitive fares, with a median price of $198. The annual median price for this route is $248, indicating that April and June typically offer better value. March, with a median price of $223, was observed as the most expensive month in the trailing 270 days.

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