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Cheap flights from St. Louis to Las Vegas from £97

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
23 Apr — 30 Apr1
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 18 April 2025.

Round-trip from

£220

One-way from

£97

Popular in

March

Cheapest in

August

Average price

£209
Delta
  • Delta
  • 11/5-17/5
  • 2 total stops
  • 12h 04m total
  • St. Louis to Las Vegas
Sun Country Air
  • Sun Country Air
  • 20/7
  • 1 total stop
  • 18h 37m total
  • St. Louis to Las Vegas
Highest demand for flights based on searches. 7% potential increase in price (£11 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in April 2025

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 18 April 2025.

Sat 17/520:45STL - LAS
Nonstop3h 30mSouthwest
Mon 19/505:00LAS - STL
Nonstop3h 05mSouthwest
Deal found 17/4£205
Sun 11/511:32STL - LAS
1 stop6h 13mDelta
Tue 20/500:54LAS - STL
1 stop7h 53mDelta
Deal found 17/4£220
Mon 15/906:30STL - LAS
1 stop8h 40mAlaska Airlines
Thu 18/907:00LAS - STL
2 stops14h 59mAlaska Airlines
Deal found 16/4£273
Thu 26/617:41STL - LAS
1 stop6h 46mUnited Airlines
Wed 2/709:46LAS - STL
1 stop4h 45mUnited Airlines
Deal found 17/4£279
Fri 25/714:27STL - LAS
Nonstop3h 36mFrontier
Tue 29/700:59LAS - STL
1 stop6h 12mFrontier
Deal found 17/4£290
Sat 1/1107:00STL - LAS
1 stop8h 01mHawaiian Airlines
Thu 6/1112:00LAS - STL
1 stop9h 56mHawaiian Airlines
Deal found 17/4£343

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 18 April 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

Sat 17/5

20:45-22:15

Nonstop3h 30m

Las Vegas Harry Reid Intl

Mon 19/5

05:00-10:05

Nonstop3h 05m

£205

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 11/5

11:32-15:45

1 stop6h 13m

Las Vegas Harry Reid Intl

Tue 20/5

00:54-10:47

1 stop7h 53m

£220

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 15/9

06:30-13:10

1 stop8h 40m

Las Vegas Harry Reid Intl

Thu 18/9

07:00-23:59

2 stops14h 59m

£273

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 26/6

17:41-22:27

1 stop6h 46m

Las Vegas Harry Reid Intl

Wed 2/7

09:46-16:31

1 stop4h 45m

£279

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 25/7

14:27-16:03

Nonstop3h 36m

Las Vegas Harry Reid Intl

Tue 29/7

00:59-09:11

1 stop6h 12m

£290

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 20/7

06:05-22:42

1 stop18h 37m

£97

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 17/5

20:45-22:15

Nonstop3h 30m

£103

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 19/5

15:50-19:37

1 stop5h 47m

£110

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 1/10

06:30-18:18

2 stops13h 48m

£145

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 21/5

08:48-17:51

2 stops11h 03m

£169

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 11 results
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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 11 April 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, 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 18 April 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 18 April 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest 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.

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very Good

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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?

  • 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 £220. Other airlines that can offer you cheap pricing are Southwest, from £230, and Alaska Airlines, from £273.

  • 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 Sun Country Air (£97), Southwest (£103), and Delta (£110).

  • 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

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
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Primm
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