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Cheap flights from St. Louis to Las Vegas from £114

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 16/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
22 Jan — 29 Jan1
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 17 January 2025.

Round-trip from

£210

One-way from

£114

Popular in

December

Cheapest in

April

Average price

£244
Southwest
  • Southwest
  • 8/2-10/2
  • Nonstop
  • 6h 55m total
  • St. Louis to Las Vegas
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Delta
  • Delta
  • 16/2
  • 1 total stop
  • 6h 37m total
  • St. Louis to Las Vegas
Search Deals
High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
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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 17 January 2025.

Sat 8/217:45STL - LAS
Nonstop3h 50mSouthwest
Mon 10/205:55LAS - STL
Nonstop3h 05mSouthwest
Deal found 16/1£210
Tue 15/721:49STL - LAS
Nonstop3h 39mFrontier
Wed 23/715:36LAS - STL
Nonstop3h 23mFrontier
Deal found 16/1£225
Sun 16/217:00STL - LAS
1 stop7h 16mDelta
Fri 21/217:35LAS - STL
1 stop5h 03mDelta
Deal found 16/1£227
Wed 19/208:40STL - LAS
1 stop7h 11mUnited Airlines
Sun 23/200:59LAS - STL
1 stop6h 52mUnited Airlines
Deal found 16/1£241
Sat 22/215:21STL - LAS
2 stops19h 53mAlaska Airlines
Wed 26/207:50LAS - STL
1 stop14h 09mAlaska Airlines
Deal found 16/1£254

Find flights from St. Louis to Las Vegas within your budget

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 8/2

17:45-19:35

Nonstop3h 50m

Las Vegas Harry Reid Intl

Mon 10/2

05:55-11:00

Nonstop3h 05m

£210

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 15/7

21:49-23:28

Nonstop3h 39m

Las Vegas Harry Reid Intl

Wed 23/7

15:36-20:59

Nonstop3h 23m

£225

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 16/2

17:00-22:16

1 stop7h 16m

Las Vegas Harry Reid Intl

Wed 19/2

06:20-13:43

1 stop5h 23m

£227

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 19/2

08:40-13:51

1 stop7h 11m

Las Vegas Harry Reid Intl

Sun 23/2

00:59-09:51

1 stop6h 52m

£241

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 22/2

15:21-09:14

2 stops19h 53m

Las Vegas Harry Reid Intl

Wed 26/2

07:50-23:59

1 stop14h 09m

£254

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 16/2

07:40-12:17

1 stop6h 37m

£114

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 18/3

07:00-22:40

1 stop17h 40m

£137

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 20/2

17:36-23:30

1 stop7h 54m

£146

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 27/3

18:20-22:10

1 stop5h 50m

£196

Flights are sorted by cheapest return flights first.

Deals found on 15/1

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.

Travel insights for flights from St. Louis to Las Vegas

Get recent, data-driven insights about flights from St. Louis to Las Vegas including ideal travel times, pricing trends, and more.

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 10 January 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 82 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 17 January 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 17 January 2025.
Get a feel of what it's like to fly with Southwest, Delta and Alaska Airlines 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.
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very Good
4,659 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very Good
9,684 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very Good
8,513 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,969 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Frontier
6.1
Okay
3,438 reviews
Southwest
8.1
Very Good
4,659 reviews
Check prices

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 £210. Other airlines that can offer you cheap pricing are Frontier, from £225, and Delta, from £227.

  • 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 Delta (£114), Alaska Airlines (£137), and United Airlines (£146).

  • 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
Kingman
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Primm
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