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Cheap flights from St. Louis to Las Vegas from £131

STL — LAS
9 Oct — 16 Oct1
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

Thu 1/1018:39 -
2 stops39h 49m
Tue 6/1006:15 -
Nonstop3h 17m
Deal found 8/9£206
Sat 17/1007:45 -
2 stops13h 15m
Tue 20/1006:00 -
2 stops9h 44m
Deal found 8/9£261
Fri 23/1014:22 -
2 stops10h 00m
Wed 28/1006:00 -
2 stops9h 44m
Deal found 6/9£264
Mon 26/1014:22 -
2 stops10h 00m
Thu 29/1006:00 -
2 stops9h 44m
Deal found 8/9£268
Sat 17/1007:45 -
2 stops13h 15m
Wed 21/1006:00 -
2 stops9h 44m
Deal found 6/9£275
Tue 6/1017:50 -
Nonstop3h 30m
Thu 8/1018:50 -
Nonstop3h 05m
Deal found 9/9£278
Mon 26/1014:22 -
2 stops10h 00m
Sat 7/1122:07 -
1 stop9h 02m
Deal found 7/9£281

Find flight deals from St. Louis to Las Vegas

Round-trip from

£206

One-way from

£131

Popular in

June

Cheapest in

January

Average price

£260
Frontier
  • Frontier
  • 1/10-6/10
  • 2 total stops
  • 43h 06m total
  • St. Louis to Las Vegas
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Delta
  • Delta
  • 3/11-31/12
  • 2 total stops
  • 13h 15m total
  • St. Louis to Las Vegas
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£25 potential increase over avg. return price).
Search Deals
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 September 2026
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Cheapflights Fare Finder

 
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 Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 3/11

11:20-22:22

2 stops13h 02m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£138
Fastest return journey

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Sat 10/10

17:50-19:25

Nonstop3h 35m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£140

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Fri 11/12

14:28-22:45

2 stops10h 17m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£142

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Thu 10/12

14:28-22:45

2 stops10h 17m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£142

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Fri 15/1

14:15-22:48

2 stops10h 33m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£142

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Mon 1/3

14:15-22:48

2 stops10h 33m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£142

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 10/11

12:40-15:30

1 stop4h 50m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£143

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 29/9

10:05-17:00

1 stop8h 55m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Mon 5/10

06:00-09:55

1 stop5h 55m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£150

St. LouisLas Vegas

STL Lambert-St Louis - LAS Las Vegas Harry Reid Intl

STLLAS

Lambert-St Louis

Tue 3/11

13:40-18:38

1 stop6h 58m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£154

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 21 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

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 44 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 £185). Flying from St. Louis to Las Vegas in June is currently the most expensive (average of £288). 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.

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

Airfare is typical for this route at the moment.

St. Louis to Las Vegas flights typically cost between £182 and £352 in October.
The cheapest return price found within the last 5 days was £206 on Frontier (1 Oct–6 Oct).

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 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 Delta and Southwest fly from St. Louis to Las Vegas in about 3h 35m. The time it takes to get you to your destination can typically vary by up to 9h 40m. 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 (83%), Frontier (80%), Southwest( 62%).

  • 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 £185). Flying from St. Louis to Las Vegas in June is currently the most expensive (average of £288). 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
Paradise
Furnace Creek
Henderson

Browse thousands of different options on Cheapflights for your next trip

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