How popular is this Las Vegas to St. Louis flight route?

Within the past month, 20 users have taken a look at flights from Las Vegas Harry Reid Intl to Lambert-St Louis.

What are the cheapest airlines flying from Las Vegas to St. Louis round-trip?

Flying on Spirit Airlines is currently your cheapest option to St. Louis, with prices starting at $169. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $202 and $323, respectively. Spirit Airlines 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 Las Vegas to St. Louis one-way?

One-way options have recently been found by users for as low as $78 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $81 and Southwest from $129 one-way.

What are the cheapest flights from Las Vegas to St. Louis?

The cheapest flight price from Las Vegas to St. Louis is $71. On average you can expect to pay $218. The most popular route, (Las Vegas Harry Reid Intl - Lambert-St Louis), can usually be booked for $175.

What are the most popular airlines that fly from Las Vegas to St. Louis?

Before booking your flight from Las Vegas to St. Louis check out the most popular airlines for this route: American Airlines, Delta or Frontier.

What is the cheapest day to fly round-trip from Las Vegas to St. Louis?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 92% on the overall cost on flights from Las Vegas to St. Louis.

How far in advance should I book a flight from Las Vegas to St. Louis?

To save up to 224% on this flight, we recommend booking at least 25 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Las Vegas to St. Louis from $148 1-2 weeks out and tickets from $266 for flights departing within the next 72 hours.

What is the cheapest month to fly from Las Vegas to St. Louis?

February can be a great time to fly to St. Louis from Las Vegas with a flight ticket averaging about $248. Cheapflights users have found deals in the month of February for as cheap as $94. The most expensive prices can be found in the month of December.

What airports do I use to fly from Las Vegas to St. Louis?

Booking a flight from Las Vegas Harry Reid Intl (LAS) to Lambert-St Louis (STL) is your only option if you wish to fly from Las Vegas to St. Louis. On a typical day, there are 7 flights from Harry Reid Intl to Lambert-St Louis, all of which are around 3h 05m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Harry Reid Intl to St. Louis.

Can I find deals for flights from Las Vegas to St. Louis that include hotel bookings?

Yes. In addition to deals on Las Vegas to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Las Vegas to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to St. Louis.

Can I find deals for business class flights from Las Vegas to St. Louis?

Yes. Cheapflights offers flight deals from Las Vegas to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$78+ Flights from Las Vegas to St. Louis

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Las Vegas to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Lambert-St Louis are usually found in February or August, booked 72 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Las Vegas to St. Louis

Round-trip from	$169 (FlightHub)
One-way from	$78 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$257
Good round-trip deal	$216 or less
Good one-way deal	$130 or less

From Las Vegas Harry Reid Intl to Lambert-St Louis

Search Deals

One-way flight from Las Vegas Harry Reid Intl to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($35 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Lambert-St Louis.

Search Deals

Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Lambert-St Louis.

Search Deals

Find flight deals from Las Vegas to St. Louis

Cheapest flights from Las Vegas to St. Louis
Explore the most affordable flight options available from Las Vegas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Wed 10/15:28 pmLAS - STL

1 stop12h 21mSpirit Airlines

Sun 10/58:44 amSTL - LAS

1 stop13h 22mSpirit Airlines

Deal found 6/12

$169

Wed 7/912:20 amLAS - STL

1 stop7h 32mMultiple Airlines

Sun 7/132:27 pmSTL - LAS

Nonstop3h 36mMultiple Airlines

Deal found 6/12

$201

Mon 9/88:09 amLAS - STL

Nonstop3h 25mFrontier

Mon 9/159:25 pmSTL - LAS

Nonstop3h 38mFrontier

Deal found 6/12

$202

Wed 8/134:15 pmLAS - STL

Nonstop3h 15mSouthwest

Sat 8/166:35 amSTL - LAS

1 stop5h 45mSouthwest

Deal found 6/10

$323

Mon 9/89:19 pmLAS - STL

1 stop15h 20mAlaska Airlines

Mon 9/156:00 amSTL - LAS

2 stops14h 59mAlaska Airlines

Deal found 6/11

$324

Mon 7/712:40 amLAS - STL

1 stop5h 54mDelta

Mon 7/145:37 pmSTL - LAS

1 stop7h 25mDelta

Deal found 6/11

$342

Tue 11/251:37 amLAS - STL

1 stop6h 17mAmerican Airlines

Wed 12/36:25 amSTL - LAS

1 stop6h 20mAmerican Airlines

Deal found 6/11

$353

Best flights from Las Vegas to St. Louis
Discover carefully curated flight deals from Las Vegas to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Wed 10/15:28 pmLAS - STL

1 stop12h 21mSpirit Airlines

Sun 10/58:44 amSTL - LAS

1 stop13h 22mSpirit Airlines

Deal found 6/12

$169

Wed 7/912:20 amLAS - STL

1 stop7h 32mMultiple Airlines

Sun 7/132:27 pmSTL - LAS

Nonstop3h 36mMultiple Airlines

Deal found 6/12

$201

Mon 9/88:09 amLAS - STL

Nonstop3h 25mFrontier

Mon 9/159:25 pmSTL - LAS

Nonstop3h 38mFrontier

Deal found 6/12

$202

Wed 8/134:15 pmLAS - STL

Nonstop3h 15mSouthwest

Sat 8/166:35 amSTL - LAS

1 stop5h 45mSouthwest

Deal found 6/10

$323

Mon 9/89:19 pmLAS - STL

1 stop15h 20mAlaska Airlines

Mon 9/156:00 amSTL - LAS

2 stops14h 59mAlaska Airlines

Deal found 6/11

$324

Mon 7/712:40 amLAS - STL

1 stop5h 54mDelta

Mon 7/145:37 pmSTL - LAS

1 stop7h 25mDelta

Deal found 6/11

$342

Tue 11/251:37 amLAS - STL

1 stop6h 17mAmerican Airlines

Wed 12/36:25 amSTL - LAS

1 stop6h 20mAmerican Airlines

Deal found 6/11

$353

Last-minute flights from Las Vegas to St. Louis
Discover last-minute flight deals from Las Vegas to St. Louis. Data last updated June 12, 2025 and is based on user searches.

Tue 6/1712:00 pmLAS - STL

1 stop9h 59mHawaiian Airlines

Sat 6/213:24 pmSTL - LAS

1 stop8h 07mHawaiian Airlines

Deal found 6/12

$518

Tue 6/1710:35 amLAS - STL

2 stops11h 24mAlaska Airlines

Sat 6/213:24 pmSTL - LAS

1 stop10h 02mAlaska Airlines

Deal found 6/12

$606

Wed 6/182:21 pmLAS - STL

1 stop7h 38mAmerican Airlines

Sat 6/2110:12 amSTL - LAS

1 stop5h 48mAmerican Airlines

Deal found 6/11

$519

Wed 6/1812:50 amLAS - STL

1 stop7h 42mDelta

Mon 6/235:38 pmSTL - LAS

1 stop7h 16mDelta

Deal found 6/9

$672

Wed 6/1812:45 pmLAS - STL

1 stop6h 15mSouthwest

Thu 6/196:15 amSTL - LAS

Nonstop3h 25mSouthwest

Deal found 6/10

$789

Thu 6/1912:59 amLAS - STL

1 stop6h 13mMultiple Airlines

Mon 6/2311:28 amSTL - LAS

1 stop15h 26mMultiple Airlines

Deal found 6/9

$216

Thu 6/199:14 pmLAS - STL

1 stop11h 19mSpirit Airlines

Mon 6/2311:28 amSTL - LAS

1 stop15h 26mSpirit Airlines

Deal found 6/10

$257

Sat 6/2112:39 amLAS - STL

2 stops9h 41mUnited Airlines

Tue 6/247:27 amSTL - LAS

1 stop9h 59mUnited Airlines

Deal found 6/12

$812

Sun 6/228:20 amLAS - STL

Nonstop3h 22mFrontier

Thu 7/172:27 pmSTL - LAS

Nonstop3h 36mFrontier

Deal found 6/10

$354

Fri 7/48:20 amLAS - STL

Nonstop3h 22mFrontier

Sun 7/132:27 pmSTL - LAS

Nonstop3h 36mFrontier

Deal found 6/12

$203

Mon 7/712:40 amLAS - STL

1 stop5h 54mDelta

Mon 7/145:37 pmSTL - LAS

1 stop7h 25mDelta

Deal found 6/11

$342

Tue 7/82:50 pmLAS - STL

Nonstop3h 15mSouthwest

Mon 7/146:35 pmSTL - LAS

Nonstop3h 30mSouthwest

Deal found 6/11

$337

One-way flights from Las Vegas to St. Louis
Search for one-way flight options from Las Vegas to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Tue 10/2812:59 amLAS - STL

1 stop6h 08mFrontier

Deal found 6/10

$78

Wed 7/912:20 amLAS - STL

1 stop7h 32mSpirit Airlines

Deal found 6/11

$81

Tue 8/126:45 amLAS - STL

Nonstop3h 10mSouthwest

Deal found 6/11

$129

Tue 9/237:50 amLAS - STL

1 stop7h 44mHawaiian Airlines

Deal found 6/12

$130

Tue 10/142:00 pmLAS - STL

1 stop7h 59mAlaska Airlines

Deal found 6/12

$136

Tue 8/1210:17 amLAS - STL

1 stop7h 04mAmerican Airlines

Deal found 6/11

$138

Tue 9/212:59 amLAS - STL

1 stop7h 02mUnited Airlines

Deal found 6/11

$139

Mon 7/218:35 amLAS - STL

2 stops25h 35mMultiple Airlines

Deal found 6/11

$147

Fri 10/1012:45 amLAS - STL

1 stop5h 59mDelta

Deal found 6/10

$162

Cheapflights Fare Finder

Use the filters below to find and compare flights from Las Vegas to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 10/1

5:28 pm-7:49 am

1 stop12h 21m

Lambert-St Louis

Sun 10/5

8:44 am-8:06 pm

1 stop13h 22m

$169

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 7/9

12:20 am-9:52 am

1 stop7h 32m

Lambert-St Louis

Sun 7/13

2:27 pm-4:03 pm

Nonstop3h 36m

$201

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 9/8

8:09 am-1:34 pm

Nonstop3h 25m

Lambert-St Louis

Mon 9/15

9:25 pm-11:03 pm

Nonstop3h 38m

$202

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 8/13

4:15 pm-9:30 pm

Nonstop3h 15m

Lambert-St Louis

Sat 8/16

6:35 am-10:20 am

1 stop5h 45m

$323

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 9/8

9:19 pm-2:39 pm

1 stop15h 20m

Lambert-St Louis

Mon 9/15

6:00 am-6:59 pm

2 stops14h 59m

$324

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 7/7

12:40 am-8:34 am

1 stop5h 54m

Lambert-St Louis

Mon 7/14

5:37 pm-11:02 pm

1 stop7h 25m

$342

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 11/25

1:37 am-9:54 am

1 stop6h 17m

Lambert-St Louis

Wed 12/3

6:25 am-10:45 am

1 stop6h 20m

$353

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 10/28

12:59 am-9:07 am

1 stop6h 08m

$78

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 7/9

12:20 am-9:52 am

1 stop7h 32m

$81

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 8/12

6:45 am-11:55 am

Nonstop3h 10m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 16 results

The best insider tips for Las Vegas to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to St. Louis trip

Airlines

Frontier

Frontier’s UpFront Plus seats offer a guaranteed empty middle seat for extra comfort.

Frontier’s Zone 1 boarding is available with a carry-on bag or special fare bundle.

Read more about Frontierby Marisa Garcia

Southwest

Southwest offers two free checked bags, including oversized items like skis or golf clubs.

Southwest’s Early Bird check-in gives priority boarding 36 hours before departure.

Read more about Southwestby Marisa Garcia

Airports

LAS

Experience self-service TSA screening at LAS, simplifying security with video instructions for a quicker departure process.

STL

Use the MetroLink light rail from STL for a convenient, economical ride to downtown St. Louis in about 40 minutes.

Our travel experts

Marisa Garcia

Expert on Frontier and Southwest

Taryn White

Expert on STL

Ramsey Qubein

Expert on LAS

Best time to book a flight from Las Vegas to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Las Vegas with our price prediction graph.

Estimated round-trip 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 Las Vegas to St. Louis

How far ahead should I book a flight from Las Vegas to St. Louis?

To ensure you get the cheapest price possible for a flight from Las Vegas to St. Louis, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Las Vegas to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $311). Flying from Las Vegas to St. Louis in March is currently the most expensive (average of $356). 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 LAS to STL?

One of the essential ways to save on airfare from Las Vegas to St. Louis is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 59% on airfare.

What is the cheapest day to fly from Las Vegas to St. Louis?

Travelers seeking maximum savings on their Las Vegas to St. Louis flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Las Vegas to St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

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

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

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

What airports do I use to fly from Las Vegas to St. Louis?
Booking a flight from Las Vegas Harry Reid Intl (LAS) to Lambert-St Louis (STL) is your only option if you wish to fly from Las Vegas to St. Louis. On a typical day, there are 7 flights from Harry Reid Intl to Lambert-St Louis, all of which are around 3h 05m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Harry Reid Intl to St. Louis.
How popular is this Las Vegas to St. Louis flight route?
Within the past month, 20 users have taken a look at flights from Las Vegas Harry Reid Intl to Lambert-St Louis.
What are the cheapest airlines flying from Las Vegas to St. Louis round-trip?
Flying on Spirit Airlines is currently your cheapest option to St. Louis, with prices starting at $169. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $202 and $323, respectively. Spirit Airlines 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 Las Vegas to St. Louis one-way?
One-way options have recently been found by users for as low as $78 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $81 and Southwest from $129 one-way.
What are the cheapest flights from Las Vegas to St. Louis?
The cheapest flight price from Las Vegas to St. Louis is $71. On average you can expect to pay $218. The most popular route, (Las Vegas Harry Reid Intl - Lambert-St Louis), can usually be booked for $175.
Can I find deals for flights from Las Vegas to St. Louis that include hotel bookings?
Yes. In addition to deals on Las Vegas to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Las Vegas to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to St. Louis.
Can I find deals for business class flights from Las Vegas to St. Louis?
Yes. Cheapflights offers flight deals from Las Vegas to St. Louis 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 Las Vegas to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $311). Flying from Las Vegas to St. Louis in March is currently the most expensive (average of $356). 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Festus

Alton

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Las Vegas to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$78	Average$198	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$91	Average$246	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$258	Average$371	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$258	Average$483	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$258	Average$388	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$291	Average$435	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$78+ Cheap flights from Las Vegas to St. Louis (LAS - STL)

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Las Vegas to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Lambert-St Louis are usually found in February or August, booked 72 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Las Vegas to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Las Vegas to St. Louis

Cheapest flights from Las Vegas to St. LouisExplore the most affordable flight options available from Las Vegas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Las Vegas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Las Vegas to St. Louis that are best for you.

The best insider tips for Las Vegas to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to St. Louis trip

Airlines

Frontier

Southwest

Airports

LAS

STL

Our travel experts

Best time to book a flight from Las Vegas to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Las Vegas with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to St. Louis

How far ahead should I book a flight from Las Vegas to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to St. Louis. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Las Vegas to St. Louis?

What is the cheapest time of day to fly from LAS to STL?

Find hourly flight availability from Las Vegas to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

What is the cheapest day to fly from Las Vegas to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to St. Louis. Price data was last updated on June 8, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Las Vegas to St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Las Vegas to St. Louis?

How popular is this Las Vegas to St. Louis flight route?

What are the cheapest airlines flying from Las Vegas to St. Louis round-trip?

What are the cheapest airlines to fly from Las Vegas to St. Louis one-way?

What are the cheapest flights from Las Vegas to St. Louis?

Can I find deals for flights from Las Vegas to St. Louis that include hotel bookings?

How can I find direct flights from Las Vegas to St. Louis?

Can I find deals for business class flights from Las Vegas to St. Louis?

What is the cheapest month to book a flight from Las Vegas to St. Louis?

Traveling to a place near Las Vegas?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Las Vegas to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Las Vegas to St. Louis

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Las Vegas to St. Louis
Explore the most affordable flight options available from Las Vegas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.