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Cheap flights from St. Louis to Las Vegas from £86

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 January 2026.

Mon 23/207:20
STL
-
LAS
Nonstop3h 45m
Southwest
Mon 2/318:40
LAS
-
STL
Nonstop3h 05m
Southwest
Deal found 24/1£159
Fri 5/619:06
STL
-
LAS
1 stop7h 40m
United Airlines
Sat 6/606:00
LAS
-
STL
1 stop6h 09m
United Airlines
Deal found 25/1£167
Fri 27/318:12
STL
-
LAS
1 stop7h 43m
Delta
Thu 2/400:50
LAS
-
STL
1 stop6h 11m
Delta
Deal found 26/1£170
Mon 16/219:55
STL
-
LAS
Nonstop3h 45m
Southwest
Thu 19/218:40
LAS
-
STL
Nonstop3h 05m
Southwest
Deal found 26/1£173
Fri 27/318:12
STL
-
LAS
1 stop7h 43m
Delta
Tue 31/311:00
LAS
-
STL
2 stops11h 21m
Delta
Deal found 26/1£178
Sun 22/218:40
STL
-
LAS
1 stop6h 42m
Delta
Wed 25/206:15
LAS
-
STL
1 stop6h 39m
Delta
Deal found 26/1£179
Wed 25/207:00
STL
-
LAS
2 stops12h 49m
Delta
Fri 27/211:05
LAS
-
STL
2 stops10h 18m
Delta
Deal found 27/1£186
Tue 19/518:59
STL
-
LAS
1 stop7h 29m
Delta
Tue 26/517:30
LAS
-
STL
1 stop5h 06m
Delta
Deal found 26/1£187
Sat 27/618:00
STL
-
LAS
1 stop7h 30m
United Airlines
Mon 29/609:46
LAS
-
STL
1 stop6h 07m
United Airlines
Deal found 27/1£191
Wed 22/414:20
STL
-
LAS
2 stops10h 21m
Delta
Sat 25/406:15
LAS
-
STL
1 stop8h 35m
Delta
Deal found 25/1£192

Find 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 27 January 2026.

Round-trip from

£159

One-way from

£86

Popular in

June

Cheapest in

February

Average price

£187
Southwest
  • Southwest
  • 23/2-2/3
  • Nonstop
  • 6h 50m total
  • St. Louis to Las Vegas
Search Deals
Delta
  • Delta
  • 23/3
  • 1 total stop
  • 7h 43m total
  • St. Louis to Las Vegas
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 27 January 2026.
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

Mon 23/2

07:20-09:05

Nonstop3h 45m

Las Vegas Harry Reid Intl

Mon 2/3

18:40-23:45

Nonstop3h 05m

£159

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 30/3

14:12-18:08

1 stop5h 56m

Las Vegas Harry Reid Intl

Thu 2/4

00:50-09:01

1 stop6h 11m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 7/5

18:59-00:28

1 stop7h 29m

Las Vegas Harry Reid Intl

Sat 9/5

00:45-08:40

1 stop5h 55m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 27/3

18:12-23:55

1 stop7h 43m

Las Vegas Harry Reid Intl

Tue 31/3

17:00-00:21

1 stop5h 21m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 2/6

06:30-12:43

1 stop8h 13m

Las Vegas Harry Reid Intl

Tue 9/6

17:30-00:36

1 stop5h 06m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 28/3

17:00-22:40

1 stop7h 40m

Las Vegas Harry Reid Intl

Wed 1/4

17:00-00:21

1 stop5h 21m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 3/6

18:59-00:28

1 stop7h 29m

Las Vegas Harry Reid Intl

Sat 6/6

09:35-16:45

1 stop5h 10m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 15/4

18:45-23:37

1 stop6h 52m

Las Vegas Harry Reid Intl

Sat 18/4

06:00-14:40

1 stop6h 40m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 7/5

18:59-00:28

1 stop7h 29m

Las Vegas Harry Reid Intl

Tue 12/5

09:35-16:45

1 stop5h 10m

£170

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 25/2

07:00-17:49

2 stops12h 49m

Las Vegas Harry Reid Intl

Wed 4/3

11:05-23:23

2 stops10h 18m

£186

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 21 results
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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.
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 23 January 2026.

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, January is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of £60). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £138). 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 27 January 2026.

It’s optimal to fly from St. Louis to Las Vegas in the afternoon. By choosing this option you can save up to 60% on the cost of your flight, compared to a flight in the evening.

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 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, United Airlines, and Delta fly from St. Louis to Las Vegas in about 3h 45m. The time it takes to get you to your destination can typically vary by up to 3h 58m. Airlines will cover a distance of 1367 mi. This flight may include one or multiple stops.

  • 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 £60). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of £138). 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
Kingman

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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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