£110 Cheap Flights from Las Vegas (LAS) to St. Louis (STL)

View £110 flight on Wed, 14 May 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Las Vegas (LAS) to St. Louis (STL)

Prices were available within the past 7 days and start at £110 for one-way flights and £382 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£382 Return, found 2 days ago
£382
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £382 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£384 Return, found 2 days ago
£384
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £384 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£386 Return, found 2 days ago
£386
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £386 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£414 Return, found 2 days ago
£414
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £414 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£456 Return, found 2 days ago
£456
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £456 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£457 Return, found 2 days ago
£457
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £457 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£460 Return, found 2 days ago
£460
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £460 found 2 days ago
Alaska Airlines
Fri, 23 May - Sun, 25 May
LAS
Las Vegas
STL
St. Louis
£487 Return, found 2 days ago
£487
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 23 May from Las Vegas to St. Louis, returning Sun, 25 May, priced at £487 found 2 days ago
Flight from Las Vegas to St. Louis route information
Origin airport
Harry Reid Intl.
Destination airport
Lambert-St. Louis Intl.
Return price
£382
Distance
2188 km

Compare flights from Las Vegas to St. Louis easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Las Vegas to St. Louis. Operating between them 10 flights per day, 20 airlines cover the route. And Frontier Airlines, Southwest Airlines fly direct, getting you to Lambert-St. Louis Intl. in just 7hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Harry Reid Intl. to Lambert-St. Louis Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Harry Reid Intl. (LAS) to Lambert-St. Louis Intl. (STL) 

The easiest way to view the best deals on flights from Las Vegas to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Harry Reid Intl. to Lambert-St. Louis Intl. start at just £382 and range up to £487.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Las Vegas and St. Louis
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Las Vegas to St. Louis flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Harry Reid Intl. to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from LAS to STL?
If you’re travelling from Harry Reid Airport (formerly McCarran Airport) to STL, round-trip journeys start from £382. This price is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don’t hang around. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LAS to STL?
When it comes to cancellation fees, each airline has its own terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from LAS to St. Louis Lambert International Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Harry Reid Airport (formerly McCarran Airport) to Lambert-St. Louis Intl. Airport (STL) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Harry Reid Airport (formerly McCarran Airport) to Lambert Field?
Around 2,200 kilometres separates Las Vegas and St. Louis, so pack something to keep you occupied for a couple of hours. That novel you haven’t had time to finish will be ideal.
Which airlines fly direct from Harry Reid Airport (formerly McCarran Airport) to Lambert Field?
Many savvy travellers choose to fly with Southwest Airlines (WN) from LAS to STL. This top airline offers 108 flights every month, so you can easily find a flight time that’s right for you. Operating 39 flights every month along this route, Frontier Airlines (F9) is another traveller favourite.
Are Harry Reid Airport (formerly McCarran Airport) to Lambert Field flight tickets cheaper when they're purchased at the last minute?
Booking your trip from LAS to Lambert-St. Louis Intl. Airport (STL) last minute could save you some serious cash. However, it might cost you a whole lot more! If you’d prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn’t released tickets yet, check back frequently as deals are updated on Expedia all the time.

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