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Cheap flights from St. Louis to Las Vegas from £93

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
15 Feb — 22 Feb1
1 adult

Cheap flight deals from St. Louis to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 February 2025.

Round-trip from

£163

One-way from

£93

Popular in

December

Cheapest in

April

Average price

£203
Frontier
  • Frontier
  • 16/3-17/3
  • Nonstop
  • 7h 04m total
  • St. Louis to Las Vegas
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Frontier
  • Frontier
  • 16/3
  • Nonstop
  • 3h 41m total
  • St. Louis to Las Vegas
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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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 10 February 2025.

Sun 16/318:38STL - LAS
Nonstop3h 41mFrontier
Mon 17/312:37LAS - STL
Nonstop3h 23mFrontier
Deal found 10/2£163
Mon 3/315:21STL - LAS
1 stop9h 19mAlaska Airlines
Fri 7/312:04LAS - STL
1 stop9h 55mAlaska Airlines
Deal found 10/2£223
Sat 8/322:05STL - LAS
Nonstop3h 40mSouthwest
Fri 14/319:55LAS - STL
Nonstop3h 05mSouthwest
Deal found 9/2£276
Sun 16/317:15STL - LAS
2 stops21h 46mMultiple Airlines
Mon 17/317:38LAS - STL
3 stops21h 07mMultiple Airlines
Deal found 10/2£277
Sat 8/317:00STL - LAS
1 stop7h 06mDelta
Sat 15/313:35LAS - STL
1 stop5h 31mDelta
Deal found 9/2£292
Thu 6/307:00STL - LAS
1 stop7h 35mUnited Airlines
Sat 8/300:59LAS - STL
1 stop5h 52mUnited Airlines
Deal found 10/2£348

Find flights from St. Louis to Las Vegas within your budget

Customise your flight search to find flights from St. Louis to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 10 February 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 16/3

18:38-20:19

Nonstop3h 41m

Las Vegas Harry Reid Intl

Mon 17/3

12:37-18:00

Nonstop3h 23m

£163

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 3/3

15:21-22:40

1 stop9h 19m

Las Vegas Harry Reid Intl

Fri 7/3

12:04-23:59

1 stop9h 55m

£223

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 8/3

22:05-23:45

Nonstop3h 40m

Las Vegas Harry Reid Intl

Sat 15/3

05:00-10:05

Nonstop3h 05m

£276

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 16/3

17:15-13:01

2 stops21h 46m

Las Vegas Harry Reid Intl

Mon 17/3

17:38-16:45

3 stops21h 07m

£277

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 8/3

17:00-22:06

1 stop7h 06m

Las Vegas Harry Reid Intl

Sat 15/3

13:35-21:06

1 stop5h 31m

£292

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 6/3

07:00-12:35

1 stop7h 35m

Las Vegas Harry Reid Intl

Sat 8/3

00:59-09:51

1 stop5h 52m

£348

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 16/3

18:38-20:19

Nonstop3h 41m

£93

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 8/3

22:05-23:45

Nonstop3h 40m

£104

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 4/3

07:00-13:13

1 stop8h 13m

£111

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 8/3

17:00-22:06

1 stop7h 06m

£112

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 13 results
1
2

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.

Travel insights for flights from St. Louis to Las Vegas

Get recent, data-driven insights about flights from St. Louis to Las Vegas including ideal travel times, pricing trends, and more.

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 7 February 2025.

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 82 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?

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 10 February 2025.

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.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

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.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated 10 February 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from St. Louis to Las Vegas by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Southwest
8.1
Very Good
4,509 reviews
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Alaska Airlines
8.0
Very Good
9,690 reviews
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Delta
8.0
Very Good
8,348 reviews
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

United Airlines
7.4
Good
8,846 reviews
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Sun Country Air
7.0
Good
381 reviews
Southwest
8.1
Very Good
4,509 reviews
Check prices

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

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?

    This flight path from Lambert-St Louis to Las Vegas Harry Reid Intl was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from St. Louis to Las Vegas round-trip?

    Cheapflights users have booked flights from St. Louis to Las Vegas round-trip from £163. Other airlines that can offer you cheap pricing are Delta, from £223, and Alaska Airlines, from £254. Frontier is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Las Vegas one-way?

    The cheapet airlines for a one-way flight from St. Louis to Las Vegas are Frontier (£93), Southwest (£104), and Alaska Airlines (£111).

  • 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.

See more FAQs

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