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Cheap flights from St. Louis to Las Vegas from £69

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
7 Jul — 14 Jul1
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 2 July 2025.

Round-trip from

£144

One-way from

£69

Popular in

March

Cheapest in

February

Average price

£205
Southwest
  • Southwest
  • 12/8-14/8
  • Nonstop
  • 6h 35m total
  • St. Louis to Las Vegas
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 26/8
  • 1 total stop
  • 7h 52m total
  • St. Louis to Las Vegas
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£2 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 July 2025
Search Deals

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 2 July 2025.

Tue 12/810:50STL - LAS
Nonstop3h 25mSouthwest
Thu 14/806:45LAS - STL
Nonstop3h 10mSouthwest
Deal found 2/7£144
Wed 17/906:00STL - LAS
1 stop10h 45mHawaiian Airlines
Tue 23/907:45LAS - STL
1 stop7h 49mHawaiian Airlines
Deal found 30/6£151
Tue 5/819:15STL - LAS
1 stop6h 10mDelta
Wed 6/800:40LAS - STL
1 stop5h 54mDelta
Deal found 2/7£151
Fri 3/1021:29STL - LAS
Nonstop3h 36mFrontier
Mon 6/1008:34LAS - STL
Nonstop3h 25mFrontier
Deal found 1/7£166
Tue 5/817:31STL - LAS
1 stop6h 21mUnited Airlines
Wed 6/800:59LAS - STL
1 stop6h 29mUnited Airlines
Deal found 2/7£178
Fri 29/806:00STL - LAS
1 stop9h 06mAlaska Airlines
Mon 1/911:45LAS - STL
1 stop10h 14mAlaska Airlines
Deal found 1/7£209

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 2 July 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

Tue 12/8

10:50-12:15

Nonstop3h 25m

Las Vegas Harry Reid Intl

Thu 14/8

06:45-11:55

Nonstop3h 10m

£144

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 17/9

06:00-14:45

1 stop10h 45m

Las Vegas Harry Reid Intl

Tue 23/9

07:45-17:34

1 stop7h 49m

£151

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 5/8

19:15-23:25

1 stop6h 10m

Las Vegas Harry Reid Intl

Thu 7/8

17:20-00:38

1 stop5h 18m

£151

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 3/10

21:29-23:05

Nonstop3h 36m

Las Vegas Harry Reid Intl

Mon 6/10

08:34-13:59

Nonstop3h 25m

£166

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 5/8

17:31-21:52

1 stop6h 21m

Las Vegas Harry Reid Intl

Wed 6/8

00:59-09:28

1 stop6h 29m

£178

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 29/8

06:00-13:06

1 stop9h 06m

Las Vegas Harry Reid Intl

Mon 1/9

11:45-23:59

1 stop10h 14m

£209

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 26/8

15:35-21:27

1 stop7h 52m

£69

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 25/8

14:30-21:38

1 stop9h 08m

£71

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 4/11

07:35-09:15

Nonstop3h 40m

£72

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 25/8

14:34-16:10

Nonstop3h 36m

£73

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 13 results
1
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 27 June 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 86 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 2 July 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.

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

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 2 July 2025.
Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from St. Louis to Las Vegas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,272 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,975 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,542 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 3 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 £144. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from £151, and Delta, from £151. Southwest is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • 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 Hawaiian Airlines (£69), Spirit Airlines (£71), and 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 £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
Henderson
Paradise

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