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Cheap flights from St. Louis to Las Vegas from £107

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
30 May — 6 Jun1
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 30 April 2026.

Mon 25/517:29
STL
-
LAS
1 stop6h 30m
United Airlines
Thu 28/507:00
LAS
-
STL
1 stop6h 46m
United Airlines
Deal found 26/4£214
Tue 2/616:48
STL
-
LAS
1 stop5h 20m
United Airlines
Fri 5/600:36
LAS
-
STL
1 stop6h 05m
United Airlines
Deal found 29/4£276
Tue 19/507:45
STL
-
LAS
1 stop6h 43m
United Airlines
Wed 20/509:05
LAS
-
STL
1 stop5h 52m
United Airlines
Deal found 27/4£281
Fri 5/616:48
STL
-
LAS
1 stop5h 20m
United Airlines
Mon 8/623:30
LAS
-
STL
1 stop7h 11m
United Airlines
Deal found 26/4£284
Mon 25/517:29
STL
-
LAS
1 stop6h 30m
United Airlines
Wed 27/510:45
LAS
-
STL
2 stops11h 12m
United Airlines
Deal found 27/4£284
Sat 23/513:13
STL
-
LAS
2 stops12h 44m
United Airlines
Wed 27/506:00
LAS
-
STL
2 stops13h 10m
United Airlines
Deal found 26/4£288
Wed 24/606:10
STL
-
LAS
1 stop6h 30m
Southwest
Wed 24/611:50
LAS
-
STL
1 stop4h 35m
Southwest
Deal found 29/4£289
Sat 5/907:30
STL
-
LAS
1 stop6h 38m
Delta
Sat 5/917:30
LAS
-
STL
1 stop5h 06m
Delta
Deal found 28/4£293
Tue 9/613:50
STL
-
LAS
2 stops6h 35m
Southwest
Wed 10/608:55
LAS
-
STL
2 stops6h 50m
Southwest
Deal found 29/4£293
Wed 27/521:00
STL
-
LAS
Nonstop3h 30m
Southwest
Wed 3/614:55
LAS
-
STL
Nonstop3h 15m
Southwest
Deal found 29/4£294
Sat 30/509:41
STL
-
LAS
2 stops11h 36m
Alaska Airlines
Tue 2/607:00
LAS
-
STL
2 stops14h 59m
Alaska Airlines
Deal found 29/4£296
Tue 18/807:00
STL
-
LAS
1 stop5h 00m
Southwest
Sat 22/806:10
LAS
-
STL
2 stops7h 15m
Southwest
Deal found 29/4£296

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 30 April 2026.

Round-trip from

£214

One-way from

£107

Popular in

June

Cheapest in

January

Average price

£258
United Airlines
  • United Airlines
  • 25/5-28/5
  • 2 total stops
  • 13h 16m total
  • St. Louis to Las Vegas
Search Deals
United Airlines
  • United Airlines
  • 19/5
  • 1 total stop
  • 7h 58m total
  • St. Louis to Las Vegas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2026.
Use the filters below to find and compare flights from St. Louis to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 19/5

08:46-14:41

1 stop7h 55m

Las Vegas Harry Reid Intl

Wed 20/5

05:15-13:13

1 stop5h 58m

£281

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 23/5

13:13-23:57

2 stops12h 44m

Las Vegas Harry Reid Intl

Wed 27/5

06:00-21:10

2 stops13h 10m

£288

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 3/6

18:30-20:05

Nonstop3h 35m

Las Vegas Harry Reid Intl

Sat 6/6

19:25-00:35

Nonstop3h 10m

£304

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 10/9

05:15-09:10

1 stop5h 55m

Las Vegas Harry Reid Intl

Tue 15/9

09:50-15:05

Nonstop3h 15m

£346

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 10/8

08:25-13:40

2 stops7h 15m

Las Vegas Harry Reid Intl

Thu 13/8

11:25-20:10

2 stops6h 45m

£350

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 31/5

06:30-08:00

Nonstop3h 30m

Las Vegas Harry Reid Intl

Thu 4/6

19:00-00:10

Nonstop3h 10m

£356

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 27/9

13:40-18:00

1 stop6h 20m

Las Vegas Harry Reid Intl

Wed 7/10

06:50-12:00

Nonstop3h 10m

£373

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 6/6

05:10-14:16

2 stops11h 06m

Las Vegas Harry Reid Intl

Thu 11/6

10:45-23:57

2 stops11h 12m

£381

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 16/6

05:10-14:16

2 stops11h 06m

Las Vegas Harry Reid Intl

Tue 23/6

10:45-21:16

2 stops8h 31m

£383

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 12/8

17:37-09:05

2 stops17h 28m

Las Vegas Harry Reid Intl

Mon 17/8

18:27-16:37

1 stop20h 10m

£386

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 36 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 £187). Flying from St. Louis to Las Vegas in June is currently the most expensive (average of £259). 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 April 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.

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

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 and United Airlines fly from St. Louis to Las Vegas in about 3h 30m. The time it takes to get you to your destination can typically vary by up to 7h 36m. 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 (82%), Southwest( 72%).

  • 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 £187). Flying from St. Louis to Las Vegas in June is currently the most expensive (average of £259). 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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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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Not ready to book yet? You can track prices for flights from St. Louis to Las Vegas on Cheapflights with our Price Alert feature and get notified when better prices are available.

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