What is the most punctual flight time for St. Louis to Las Vegas flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on St. Louis to Las Vegas flights?

Over the past year, Frontier have had the lowest number of delays on this route, with just 19% of flights being delayed.

How often are flights from St. Louis to Las Vegas delayed?

About 20% of weekly flights between St. Louis and Las Vegas have experienced delays in the past year, with the average delay time being 132 minutes.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

How popular is this St. Louis to Las Vegas flight route?

This flight path from Lambert-St Louis to Las Vegas Harry Reid Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from St. Louis to Las Vegas?

Airlines like Southwest, Delta, and United Airlines fly from St. Louis to Las Vegas in about 4h 50m. The time it takes to get you to your destination can typically vary by up to 5h 06m. Airlines will cover a distance of 1367 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Las Vegas ranges from 3.0 - 20.0 inches per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

What are the most reliable airlines from St. Louis to Las Vegas?

Before booking your flight to Las Vegas from St. Louis, check out the most reliable airlines to get you to your destination on time: Volaris (94%), Frontier (84%), Southwest( 78%).

Can I find deals for flights from St. Louis to Las Vegas that include hotel bookings?

Yes. In addition to deals on St. Louis to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from St. Louis to Las Vegas?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Las Vegas.

Can I find deals for business class flights from St. Louis to Las Vegas?

Yes. Cheapflights offers flight deals from St. Louis to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£116+ Cheap Flights from St. Louis to Las Vegas

Cheap flight deals from St. Louis to Las Vegas

Enter your travel dates to find the best prices.

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Cheapest flights from St. Louis to Las Vegas
Explore the most affordable flight options available from St. Louis to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Wed 25/1105:00 -

1 stop6h 30m

Wed 25/1113:33 -

1 stop6h 42m

Deal found 20/10£227

Thu 12/1119:05 -

1 stop7h 35m

Sat 14/1105:15 -

1 stop5h 23m

Deal found 21/10£231

Tue 8/1212:40 -

1 stop4h 50m

Tue 15/1209:35 -

Nonstop3h 05m

Deal found 20/10£241

Mon 7/1205:05 -

Nonstop3h 45m

Thu 10/1207:00 -

Nonstop3h 00m

Deal found 21/10£242

Fri 11/1214:50 -

1 stop6h 02m

Sun 13/1209:44 -

1 stop6h 27m

Deal found 20/10£243

Mon 7/1205:05 -

Nonstop3h 45m

Sat 12/1206:25 -

1 stop6h 15m

Deal found 21/10£245

Tue 29/1215:25 -

1 stop6h 36m

Wed 30/1217:22 -

1 stop5h 24m

Deal found 22/10£247

Thu 10/1214:50 -

1 stop6h 02m

Sat 12/1200:59 -

1 stop6h 46m

Deal found 20/10£251

Tue 1/1205:30 -

2 stops6h 25m

Wed 2/1209:30 -

1 stop5h 55m

Deal found 21/10£252

Mon 30/1121:55 -

Nonstop3h 40m

Sat 5/1209:50 -

1 stop4h 30m

Deal found 21/10£255

Mon 23/1105:05 -

1 stop5h 15m

Fri 27/1117:15 -

Nonstop3h 10m

Deal found 23/10£257

Find flight deals from St. Louis to Las Vegas

Round-trip from	£227
One-way from	£116
Popular in	October
Cheapest in	January
Average price	£298

United Airlines
25/11-25/11
2 total stops
13h 12m total
St. Louis to Las Vegas

Search Deals

United Airlines
12/11-31/12
1 total stop
7h 35m total
St. Louis to Las Vegas

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£23 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).

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Average for round-trip flights in October 2026

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Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Las Vegas that are best for you.

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Route

Depart

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Price

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St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 8/12

06:25-08:00

Nonstop3h 35m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£121

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Wed 25/11

21:55-23:35

Nonstop3h 40m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£121

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Sat 14/11

05:55-07:35

Nonstop3h 40m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 10/11

06:25-08:00

Nonstop3h 35m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£137

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 17/11

08:25-13:05

2 stops6h 40m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Fri 18/12

21:55-23:35

Nonstop3h 40m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£158

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Fri 11/12

06:30-14:42

2 stops10h 12m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£161

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Thu 18/2

07:33-20:20

2 stops14h 47m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£161

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Thu 17/12

09:35-17:23

2 stops9h 48m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£169

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Thu 17/12

06:03-14:58

2 stops10h 55m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£185

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from St. Louis to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from St. Louis with our price prediction graph.

STL-LAS

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Las Vegas

Prices

Delays

How far ahead should I book a flight from St. Louis to Las Vegas?

The price you pay for your flight from St. Louis to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Las Vegas?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of £188). Flying from St. Louis to Las Vegas in October is currently the most expensive (average of £312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to LAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Las Vegas as you normally would.

How much does it cost for a return flight from St. Louis to Las Vegas?

Airfare is typical for this route at the moment.

St. Louis to Las Vegas flights typically cost between £199 and £369 in November.
The cheapest return price found within the last 5 days was £227 on United Airlines (25 Nov–25 Nov).

Related info for your journey

How popular is this St. Louis to Las Vegas flight route?
This flight path from Lambert-St Louis to Las Vegas Harry Reid Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from St. Louis to Las Vegas?
Airlines like Southwest, Delta, and United Airlines fly from St. Louis to Las Vegas in about 4h 50m. The time it takes to get you to your destination can typically vary by up to 5h 06m. Airlines will cover a distance of 1367 mi. This flight may include one or multiple stops.
What are the most reliable airlines from St. Louis to Las Vegas?
Before booking your flight to Las Vegas from St. Louis, check out the most reliable airlines to get you to your destination on time: Volaris (94%), Frontier (84%), Southwest( 78%).
Can I find deals for flights from St. Louis to Las Vegas that include hotel bookings?
Yes. In addition to deals on St. Louis to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from St. Louis to Las Vegas?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Las Vegas.
Can I find deals for business class flights from St. Louis to Las Vegas?
Yes. Cheapflights offers flight deals from St. Louis to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Las Vegas?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of £188). Flying from St. Louis to Las Vegas in October is currently the most expensive (average of £312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Cheap flights from St. Louis to Las Vegas from £116

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Las Vegas

Cheapest flights from St. Louis to Las VegasExplore the most affordable flight options available from St. Louis to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Explore the most affordable flight options available from St. Louis to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from St. Louis to Las VegasDiscover carefully curated flight deals from St. Louis to Las Vegas that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from St. Louis to Las Vegas that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from St. Louis to Las VegasExplore direct flight options from St. Louis to Las Vegas based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Explore direct flight options from St. Louis to Las Vegas based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from St. Louis to Las VegasDiscover last-minute flight deals from St. Louis to Las Vegas. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Las Vegas. Data last updated 25 October 2026 and is based on user searches.

One-way flights from St. Louis to Las VegasSearch for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

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Best time to book a flight from St. Louis to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from St. Louis with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from St. Louis to Las Vegas?

The price you pay for your flight from St. Louis to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Las Vegas?

What is the cheapest time of day to fly from STL to LAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Las Vegas as you normally would.

How much does it cost for a return flight from St. Louis to Las Vegas?

Airfare is typical for this route at the moment.

St. Louis to Las Vegas flights typically cost between £199 and £369 in November.The cheapest return price found within the last 5 days was £227 on United Airlines (25 Nov–25 Nov).

How often are flights from St. Louis to Las Vegas delayed?

About 20% of weekly flights between St. Louis and Las Vegas have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for St. Louis to Las Vegas flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on St. Louis to Las Vegas flights?

Over the past year, Frontier have had the lowest number of delays on this route, with just 19% of flights being delayed.

Related info for your journey

How popular is this St. Louis to Las Vegas flight route?

How long is the flight from St. Louis to Las Vegas?

What are the most reliable airlines from St. Louis to Las Vegas?

Can I find deals for flights from St. Louis to Las Vegas that include hotel bookings?

How can I find direct flights from St. Louis to Las Vegas?

Can I find deals for business class flights from St. Louis to Las Vegas?

What is the cheapest month to book a flight from St. Louis to Las Vegas?

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Cheapest flights from St. Louis to Las Vegas
Explore the most affordable flight options available from St. Louis to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from St. Louis to Las Vegas
Discover carefully curated flight deals from St. Louis to Las Vegas that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from St. Louis to Las Vegas
Explore direct flight options from St. Louis to Las Vegas based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from St. Louis to Las Vegas
Discover last-minute flight deals from St. Louis to Las Vegas. Data last updated 25 October 2026 and is based on user searches.

One-way flights from St. Louis to Las Vegas
Search for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

St. Louis to Las Vegas flights typically cost between £199 and £369 in November.
The cheapest return price found within the last 5 days was £227 on United Airlines (25 Nov–25 Nov).