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 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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 cheapest flights from St. Louis to Las Vegas?

Looking at all options, your cheapest flight can be booked for £73. While the most popular route (Lambert-St Louis - Las Vegas Harry Reid Intl) can be booked for £150 on average our data indicates £97 when flying from St. Louis to Las Vegas.

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

To save on the cost of your flight from St. Louis to Las Vegas, book at least 21 days before your planned departure. Booking around this time can save you about 51% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £162 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £272.

What is the cheapest month to fly from St. Louis to Las Vegas?

February is one of the best times of the year to fly to Las Vegas from St. Louis. Prices for February average £222 per person but you can even find prices for as low as £82. The most expensive prices can be found in the month of June. Opting for a February flight can save you 18% on your journey compared to booking in June

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.

£72+ Flights from St. Louis to Las Vegas

Cheap flight deals from St. Louis to Las Vegas

Round-trip from	£190
One-way from	£72
Popular in	June
Cheapest in	February
Average price	£200
Good one-way deal	£73 or less

Southwest
16/9-23/9
Nonstop
6h 35m total
St. Louis to Las Vegas

Search Deals

Frontier
12/11
1 total stop
5h 40m total
St. Louis to Las Vegas

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£14 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Price to beat on a one-way flight from Lambert-St Louis to Las Vegas Harry Reid Intl.

Search Deals

Find flight deals from St. Louis to Las Vegas

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 15 August 2025.

Tue 16/920:45STL - LAS

Nonstop3h 25mSouthwest

Tue 23/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 13/8£190

Sun 14/914:00STL - LAS

1 stop20h 13mSun Country Air

Thu 18/918:06LAS - STL

1 stop15h 21mSun Country Air

Deal found 13/8£195

Wed 31/1206:04STL - LAS

1 stop7h 26mDelta

Tue 6/114:00LAS - STL

1 stop7h 10mDelta

Deal found 13/8£197

Thu 13/1105:25STL - LAS

Nonstop3h 35mSouthwest

Tue 18/1112:10LAS - STL

Nonstop3h 10mSouthwest

Deal found 14/8£204

Wed 10/1213:50STL - LAS

1 stop5h 15mSouthwest

Mon 15/1216:30LAS - STL

Nonstop3h 05mSouthwest

Deal found 14/8£209

Sun 21/920:10STL - LAS

Nonstop3h 25mSouthwest

Wed 24/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 14/8£210

Wed 10/1214:15STL - LAS

1 stop5h 48mDelta

Sat 13/1206:25LAS - STL

1 stop8h 22mDelta

Deal found 14/8£212

Tue 7/1014:50STL - LAS

1 stop6h 20mSouthwest

Sun 12/1020:25LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£218

Wed 1/1020:45STL - LAS

Nonstop3h 25mSouthwest

Sun 5/1020:25LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£222

Sat 27/913:45STL - LAS

1 stop5h 50mSouthwest

Tue 30/911:20LAS - STL

2 stops6h 35mSouthwest

Deal found 13/8£223

Sun 12/1005:15STL - LAS

Nonstop3h 30mSouthwest

Thu 16/1017:45LAS - STL

Nonstop3h 15mSouthwest

Deal found 14/8£225

Wed 10/1213:50STL - LAS

1 stop5h 15mSouthwest

Sat 13/1207:30LAS - STL

2 stops7h 30mSouthwest

Deal found 14/8£226

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 15 August 2025.

Tue 16/920:45STL - LAS

Nonstop3h 25mSouthwest

Tue 23/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 13/8£190

Sun 14/914:00STL - LAS

1 stop20h 13mSun Country Air

Thu 18/918:06LAS - STL

1 stop15h 21mSun Country Air

Deal found 13/8£195

Tue 7/1006:33STL - LAS

1 stop10h 14mAlaska Airlines

Wed 8/1014:00LAS - STL

1 stop8h 03mAlaska Airlines

Deal found 14/8£197

Wed 31/1206:04STL - LAS

1 stop7h 26mDelta

Wed 7/114:00LAS - STL

1 stop7h 10mDelta

Deal found 13/8£197

Tue 9/920:45STL - LAS

Nonstop3h 25mSouthwest

Tue 16/909:45LAS - STL

Nonstop3h 15mSouthwest

Deal found 12/8£190

Wed 31/1206:04STL - LAS

1 stop7h 26mDelta

Tue 6/114:00LAS - STL

1 stop7h 10mDelta

Deal found 13/8£197

Tue 9/917:25STL - LAS

Nonstop3h 30mSouthwest

Tue 30/908:50LAS - STL

1 stop5h 55mSouthwest

Deal found 13/8£197

Wed 10/910:30STL - LAS

1 stop5h 50mSouthwest

Wed 17/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 13/8£197

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 15 August 2025.

Tue 16/920:45STL - LAS

Nonstop3h 25mSouthwest

Tue 23/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 13/8£190

Thu 13/1105:25STL - LAS

Nonstop3h 35mSouthwest

Tue 18/1112:10LAS - STL

Nonstop3h 10mSouthwest

Deal found 14/8£204

Sun 21/920:10STL - LAS

Nonstop3h 25mSouthwest

Wed 24/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 14/8£210

Wed 1/1020:45STL - LAS

Nonstop3h 25mSouthwest

Sun 5/1020:25LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£222

Sun 12/1005:15STL - LAS

Nonstop3h 30mSouthwest

Thu 16/1017:45LAS - STL

Nonstop3h 15mSouthwest

Deal found 14/8£225

Sun 7/918:05STL - LAS

Nonstop3h 30mSouthwest

Tue 9/916:15LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£229

Wed 1/1020:45STL - LAS

Nonstop3h 25mSouthwest

Fri 3/1017:45LAS - STL

Nonstop3h 15mSouthwest

Deal found 15/8£231

Sat 13/918:00STL - LAS

Nonstop3h 30mSouthwest

Sat 20/906:05LAS - STL

Nonstop3h 15mSouthwest

Deal found 14/8£237

Fri 24/1020:10STL - LAS

Nonstop3h 30mSouthwest

Sun 26/1020:25LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£243

Sun 28/920:10STL - LAS

Nonstop3h 25mSouthwest

Tue 30/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 14/8£251

Fri 3/1020:10STL - LAS

Nonstop3h 30mSouthwest

Sun 5/1020:25LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£254

Tue 9/917:25STL - LAS

Nonstop3h 30mSouthwest

Tue 30/906:45LAS - STL

Nonstop3h 10mSouthwest

Deal found 13/8£275

Last-minute flights from St. Louis to Las Vegas
Discover last-minute flight deals from St. Louis to Las Vegas. Data last updated 15 August 2025 and is based on user searches.

Wed 20/806:45STL - LAS

1 stop8h 13mAlaska Airlines

Wed 27/813:38LAS - STL

1 stop7h 31mAlaska Airlines

Deal found 13/8£440

Wed 20/813:39STL - LAS

2 stops12h 15mUnited Airlines

Tue 26/800:59LAS - STL

1 stop7h 02mUnited Airlines

Deal found 13/8£478

Sat 23/806:00STL - LAS

2 stops15h 58mAlaska Airlines

Wed 27/806:00LAS - STL

2 stops9h 34mAlaska Airlines

Deal found 13/8£444

Sat 23/815:35STL - LAS

1 stop7h 52mAlaska Airlines

Thu 28/820:59LAS - STL

2 stops15h 40mAlaska Airlines

Deal found 13/8£467

Sat 23/807:20STL - LAS

1 stop5h 50mSouthwest

Wed 27/816:15LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£479

Sat 23/806:00STL - LAS

2 stops13h 10mAlaska Airlines

Mon 25/806:00LAS - STL

2 stops15h 59mAlaska Airlines

Deal found 12/8£485

Mon 25/815:35STL - LAS

1 stop7h 52mAlaska Airlines

Fri 29/811:45LAS - STL

1 stop10h 14mAlaska Airlines

Deal found 14/8£471

Fri 5/921:40STL - LAS

Nonstop3h 25mSouthwest

Mon 8/917:55LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£225

Sun 7/918:05STL - LAS

Nonstop3h 30mSouthwest

Tue 9/916:15LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£229

Tue 9/920:45STL - LAS

Nonstop3h 25mSouthwest

Tue 16/910:45LAS - STL

1 stop5h 05mSouthwest

Deal found 12/8£197

Wed 10/917:30STL - LAS

1 stop7h 50mDelta

Mon 15/917:14LAS - STL

1 stop5h 24mDelta

Deal found 14/8£212

Sat 13/918:00STL - LAS

Nonstop3h 30mSouthwest

Tue 16/909:45LAS - STL

Nonstop3h 15mSouthwest

Deal found 13/8£204

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 15 August 2025.

Wed 12/1119:52STL - LAS

1 stop5h 40mFrontier

Deal found 13/8£72

Sat 15/1116:35STL - LAS

Nonstop3h 39mFrontier

Deal found 13/8£73

Sat 6/1214:48STL - LAS

1 stop10h 02mSpirit Airlines

Deal found 14/8£78

Thu 13/1118:22STL - LAS

1 stop7h 14mFrontier

Deal found 13/8£80

Mon 17/1114:19STL - LAS

Nonstop3h 40mFrontier

Deal found 13/8£80

Fri 14/1119:45STL - LAS

2 stops14h 34mFrontier

Deal found 14/8£86

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 16/9

20:45-22:10

Nonstop3h 25m

Las Vegas Harry Reid Intl

Tue 23/9

06:45-11:55

Nonstop3h 10m

£190

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 9/9

20:45-22:10

Nonstop3h 25m

Las Vegas Harry Reid Intl

Tue 16/9

09:45-15:00

Nonstop3h 15m

£190

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 14/9

14:00-08:13

1 stop20h 13m

Las Vegas Harry Reid Intl

Thu 18/9

18:06-11:27

1 stop15h 21m

£195

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 7/10

06:33-14:47

1 stop10h 14m

Las Vegas Harry Reid Intl

Wed 8/10

14:00-00:03

1 stop8h 03m

£197

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 31/12

06:04-11:30

1 stop7h 26m

Las Vegas Harry Reid Intl

Wed 7/1

14:00-23:10

1 stop7h 10m

£197

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 31/12

06:04-11:30

1 stop7h 26m

Las Vegas Harry Reid Intl

Tue 6/1

14:00-23:10

1 stop7h 10m

£197

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 9/9

17:25-18:55

Nonstop3h 30m

Las Vegas Harry Reid Intl

Tue 30/9

08:50-16:45

1 stop5h 55m

£197

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 10/9

10:30-14:20

1 stop5h 50m

Las Vegas Harry Reid Intl

Wed 17/9

06:45-11:55

Nonstop3h 10m

£197

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 12/11

19:52-23:32

1 stop5h 40m

£72

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 15/11

16:35-18:14

Nonstop3h 39m

£73

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 16 results

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.

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

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 86 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 £689). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £1,020). 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.

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 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest flights from St. Louis to Las Vegas?
Looking at all options, your cheapest flight can be booked for £73. While the most popular route (Lambert-St Louis - Las Vegas Harry Reid Intl) can be booked for £150 on average our data indicates £97 when flying from St. Louis to Las Vegas.
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 £689). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £1,020). 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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Why should you use Cheapflights to find cheap flight tickets from St. Louis to Las Vegas?

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Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Las Vegas flexibly with Cheapflights today.

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Cheap flights from St. Louis to Las Vegas from £72

This is the cheapest one-way 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find 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 15 August 2025.

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 15 August 2025.

Cheapflights Fare Finder

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

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

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

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

Use this chart to determine the optimal time to book a return flight from St. Louis to Las Vegas. Price data was last updated on 8 August 2025.

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?

Find hourly flight availability from St. Louis to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the cheapest flights 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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How does Cheapflights help users find flights from St. Louis to Las Vegas?

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Las Vegas?

Can Cheapflights find flights from St. Louis to Las Vegas with no change fees?

Can Cheapflights notify me if prices for flights from St. Louis to Las Vegas become cheaper?

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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 15 August 2025.