Question 1

What is the cheapest month to fly to St. Louis?

Accepted Answer

In general, February is the cheapest month to fly from Las Vegas to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $164. The month of October is another great option to travel to St. Louis, with average flight prices from Las Vegas averaging around $164.

Question 2

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

Accepted Answer

You are more likely to see cheaper flights to St. Louis from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $242 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Las Vegas for as low as $198 on momondo.

Question 3

What is the cheapest time of day to depart on your flight to St. Louis?

Accepted Answer

Flying to St. Louis from Las Vegas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $180 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $508 per ticket.

Question 4

How many flights depart from Las Vegas to St. Louis on average per day?

Accepted Answer

7 flights are operational daily from Las Vegas to St. Louis as of November 2025. The most popular departure time for this route is 8:00AM, with 47% of flights per day taking off at noon.

Question 5

How many flights depart from Las Vegas to St. Louis on average per week?

Accepted Answer

49 flights are operational weekly from Las Vegas to St. Louis as of November 2025. The most popular departure day for this route is Mon, with 41% of flights per week taking off on this day.

Question 6

What is the cheapest day to depart on your flight to St. Louis?

Accepted Answer

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $212. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $386. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

Question 7

What cabin class options are available on Las Vegas Harry Reid Intl to Lambert-St Louis flights?

Accepted Answer

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 8

What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Lambert-St Louis?

Accepted Answer

Frontier is the most popular carrier operating from Las Vegas Harry Reid Intl to Lambert-St Louis

Question 9

How have Las Vegas to St. Louis flight prices changed over time?

Accepted Answer

As of November 2025, prices for Las Vegas to St. Louis flights are approximately 21% cheaper when compared to flights at the same time last year.

Question 10

What is the cheapest Las Vegas Harry Reid Intl to Lambert-St Louis flight route?

Accepted Answer

Fly from Las Vegas Harry Reid Intl to Lambert-St Louis for the best Las Vegas Harry Reid Intl - Lambert-St Louis flight prices

Question 11

Can stopping save me money on Las Vegas to St. Louis flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Las Vegas to St. Louis.

Question 12

What airlines fly to St. Louis?

Accepted Answer

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to St. Louis from Las Vegas according to our data. Frontier is the first choice among our users, with 76% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

Question 13

What is the best way to get in and out of airports in Las Vegas and St Louis?

Accepted Answer

To get to McCarran International Airport from Downtown Las Vegas in time for your flights from Las Vegas to St Louis, you should consider taking a taxi or Uber. It is the fastest way possible with an expected travel time of just under 20min via the I-15 S barring any delays with traffic. This is also extremely convenient especially if you have a lot of luggage with you since they can pick you up at any point of your choosing and will drop you just outside the departure terminal in McCarran International Airport. After landing in St Louis, you could choose to take the airport shuttle which will drop you off in the heart of St Louis at any destination. The Metro is another option worth considering as it is available at all times and goes direct from Terminal 2 of Lambert Airport towards Red Line to Shiloh Scott and then dropping you at the Civic Center which is right in the heart of St Louis.

Which cities can you get to from St Louis Lambert Airport?

St Louis Lambert International airport is quite conveniently located east of Missouri just outside Illinois which means that you can even cross state borders once your flights from Las Vegas to St Louis has landed. From this convenient location, you can easily get to a number of cities such as Chesterfield which is only half an hour to the west, Ballwin and St Charles which are towards the northwest, and Kirkwood to the south. On the other side of the border towards Illinois, you can easily get to Belleville, Glen Carbon, and Collinsville via the I-70.

Question 14

What are the benefits of the different airports in Las Vegas and St Louis?

Accepted Answer

St. Louis Lambert International Airport is the biggest and busiest airport in St Louis by all metrics including the number of passengers that have passed through as well as the number of aircraft. This means that any time your flights from Las Vegas to St Louis land, you are most likely to be held up for quite a long time as the queues are processed. This one thing is what makes Columbia Regional Airport a better landing airport despite the fact that it is a good 1h from St Louis. Since there is less traffic, queues are shorter and even getting transport from the airport into the city center isn’t that difficult since there aren’t too many people. However, it is worth pointing out that St. Louis Lambert International Airport, being the bigger airport, has its benefits. For example, the amenities are newer and better. There are quite a number of places from where you can do your shopping as well as some top-quality eateries serving everything from coffee to burgers, pizza, and even classic American steak. This means that as soon as you’ve landed from your Las Vegas to St Louis flights, you’ll have plenty of options to grab a bite.

Question 15

Which airlines fly direct from Las Vegas to St Louis?

Accepted Answer

A majority of airlines in the US offer one-way flights from Las Vegas to St Louis, so it is up to you to choose which one you prefer based on price and onboard amenities. Out of these airlines, Frontier and Spirit offer the most direct flights with at least two per day while American Airlines and Sun County Air have a few cheap flights from Las Vegas to St Louis every week. Both Frontier and Spirit don’t have too much to offer in terms of amenities but the prices are quite budget-friendly which makes up for it. Sun County Air on the other hand offers premium snacks to passengers who also get a personal entertainment device as well as a charging port.

Question 16

When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

Accepted Answer

Prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport were last updated today.

Question 17

How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

Accepted Answer

As of November 2025, there are 5 operators available to choose from for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport.

Question 18

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport.

Question 19

What documentation or ID do you need to fly to Lambert-St Louis Airport?

Accepted Answer

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best Price Found	$87
Fastest flight time	3h 05m
Direct flights	Every day
Airports in St. Louis	1 airport

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $95	Free Cancellation	Rating 5.8 3,099 reviews	Search Frontier flights
American Airlines	PriceFrom $144	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
United Airlines	PriceFrom $166	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Delta	PriceFrom $224	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
Southwest	PriceFrom $277	Free Cancellation	Rating 8.0 4,254 reviews	Search Southwest flights

Cheap flights from Las Vegas to St. Louis from $66

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What is the cheapest month to fly to St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest Las Vegas Harry Reid Intl to Lambert-St Louis flight route?

Fly from Las Vegas Harry Reid Intl to Lambert-St Louis for the best Las Vegas Harry Reid Intl - Lambert-St Louis flight prices

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

What cabin class options are available on Las Vegas Harry Reid Intl to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Las Vegas to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Las Vegas to St. Louis.

How have Las Vegas to St. Louis flight prices changed over time?

As of November 2025, prices for Las Vegas to St. Louis flights are approximately 21% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Lambert-St Louis?

Frontier is the most popular carrier operating from Las Vegas Harry Reid Intl to Lambert-St Louis

What airlines fly to St. Louis?

How many flights depart from Las Vegas to St. Louis on average per day?

7 flights are operational daily from Las Vegas to St. Louis as of November 2025. The most popular departure time for this route is 8:00AM, with 47% of flights per day taking off at noon.

How many flights depart from Las Vegas to St. Louis on average per week?

49 flights are operational weekly from Las Vegas to St. Louis as of November 2025. The most popular departure day for this route is Mon, with 41% of flights per week taking off on this day.

When to book flights from Las Vegas to St. Louis

Cheap Las Vegas to St. Louis (LAS to STL) flight deals and tips

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How far is Las Vegas Harry Reid Intl to Lambert-St Louis by plane?

When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

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What is the most popular airline from Las Vegas to St. Louis?

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