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Cheap flights from St. Louis to Las Vegas from £88

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
30 Dec — 6 Jan1
1 adult
1 adult, Economy, 0 bags

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 30 November 2025.

Round-trip from

£174

One-way from

£88

Popular in

June

Cheapest in

February

Average price

£224
United Airlines
  • United Airlines
  • 24/1-24/1
  • 2 total stops
  • 15h 11m total
  • St. Louis to Las Vegas
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Alaska Airlines
  • Alaska Airlines
  • 25/1
  • 1 total stop
  • 9h 10m total
  • St. Louis to Las Vegas
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Highest demand for flights based on searches. 8% potential increase in price (£16 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 November 2025
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Find flight deals from St. Louis to Las Vegas

Enter your travel dates to find the best prices.

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 30 November 2025.

Sun 21/1219:06STL - LAS
1 stop6h 38mDelta
Sun 28/1213:30LAS - STL
1 stop6h 04mDelta
Deal found 26/11£208
Wed 31/1214:45STL - LAS
1 stop7h 37mUnited Airlines
Wed 31/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 28/11£230
Sun 21/1217:45STL - LAS
1 stop7h 45mUnited Airlines
Mon 22/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 28/11£238
Sat 20/1217:02STL - LAS
1 stop7h 30mUnited Airlines
Mon 22/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 29/11£250
Wed 24/1206:05STL - LAS
1 stop7h 16mDelta
Sun 28/1213:30LAS - STL
1 stop6h 04mDelta
Deal found 29/11£258
Tue 23/1214:45STL - LAS
1 stop7h 37mUnited Airlines
Mon 29/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 28/11£260
Sun 21/1214:45STL - LAS
1 stop7h 37mUnited Airlines
Wed 31/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 28/11£268
Wed 17/1211:10STL - LAS
1 stop6h 43mUnited Airlines
Wed 24/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 27/11£269
Thu 18/1214:45STL - LAS
1 stop7h 37mUnited Airlines
Sat 20/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 28/11£280
Fri 19/1206:00STL - LAS
1 stop10h 01mUnited Airlines
Mon 22/1200:59LAS - STL
1 stop6h 50mUnited Airlines
Deal found 27/11£298
Sat 13/1209:00STL - LAS
1 stop5h 27mUnited Airlines
Mon 15/1200:59LAS - STL
1 stop7h 05mUnited Airlines
Deal found 28/11£300
Tue 16/1206:00STL - LAS
2 stops10h 45mDelta
Fri 19/1214:07LAS - STL
1 stop7h 20mDelta
Deal found 28/11£301

Cheapflights Fare Finder

 
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 30 November 2025.
Use the filters below to find and compare flights from St. Louis to Las Vegas that are best for you.

Fly from

St. Louis

Fly to

Las Vegas

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 5/2

06:10-10:25

1 stop6h 15m

Las Vegas Harry Reid Intl

Sat 7/2

06:00-13:48

1 stop5h 48m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 1/5

17:18-21:43

1 stop6h 25m

Las Vegas Harry Reid Intl

Tue 5/5

00:59-09:42

1 stop6h 43m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 24/2

06:10-12:36

1 stop8h 26m

Las Vegas Harry Reid Intl

Thu 26/2

06:10-14:56

1 stop6h 46m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 17/1

16:42-21:59

1 stop7h 17m

Las Vegas Harry Reid Intl

Tue 20/1

11:53-20:58

1 stop7h 05m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 3/1

06:05-11:21

1 stop7h 16m

Las Vegas Harry Reid Intl

Tue 6/1

14:00-23:25

1 stop7h 25m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 7/1

06:10-12:36

1 stop8h 26m

Las Vegas Harry Reid Intl

Thu 8/1

06:15-16:45

1 stop8h 30m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 14/1

06:00-07:45

Nonstop3h 45m

Las Vegas Harry Reid Intl

Wed 21/1

10:15-17:10

1 stop4h 55m

£184

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 26/1

15:31-20:44

1 stop7h 13m

Las Vegas Harry Reid Intl

Fri 30/1

11:00-23:25

2 stops10h 25m

£184

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 17/2

15:38-20:54

1 stop7h 16m

Las Vegas Harry Reid Intl

Fri 20/2

11:05-23:23

2 stops10h 18m

£184

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 22/1

05:55-10:15

1 stop6h 20m

Las Vegas Harry Reid Intl

Sun 25/1

23:40-07:35

1 stop5h 55m

£194

Flights are sorted by cheapest return flights first.

Deals found on 28/11

Showing 1-10 of 20 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.

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 28 November 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 20 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, March is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of £80). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £147). 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 30 November 2025.

It’s optimal to fly from St. Louis to Las Vegas at midday. By choosing this option you can save up to 82% on the cost of your flight, compared to a flight in the afternoon.

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 3 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 Delta and United Airlines fly from St. Louis to Las Vegas in about 6h 15m. The time it takes to get you to your destination can typically vary by up to 10m. 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: Southwest (76%), Frontier (73%), Sun Country Air( 0%).

  • 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, March is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of £80). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £147). 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

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Furnace Creek
Henderson
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