C$ 217 Find Cheap Flights from St. Louis to Las Vegas – Compare and Save

If you are at Terminal 1, a bus service is located at Level 0, which serves three routes. If you are at Terminal 3, the bus service is on the second floor and serves two routes. If you plan on taking a shuttle, the shuttle service at Terminal 1 is at the west part of the baggage claim area outside exit doors 7-13. If you are at Terminal 3, the shuttle service is located outside Level 0.

STL has a toll-free motel/hotel phone center available at Terminal 1 and Terminal 2. At Terminal 1, the motel/hotel phone center is in the lower level of the baggage claim area at doors 12, 17, and 18. For the passenger pickup spot, go to door 18. At Terminal 2, the motel/hotel phone center is on the lower level next to door 12. The passenger pickup spot is at exit door 15.

There are three lactation suites located near Gate A10, Gate C9, and Gate E33. To unlock the suite, keep an eye out for a sign near the door that provides a number that you need to text to. Once you send a text to that number, a code will be texted back to you, which you can use to unlock the door.

The Best Western McCarran Inn provides a free shuttle service to the Las Vegas airport. If you are traveling light, it is only a 6min walk to McCarran International Airport. Travelodge by Wyndham Las Vegas Airport is just 2 miles away from McCarran International Airport.

Among airlines operating St. Louis to Las Vegas flights:

• Frontier: offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between St. Louis and Las Vegas. The airlines offering direct flights on this route include:

• Southwest
• Frontier

Flights from St. Louis to Las Vegas usually depart from Lambert-St Louis (STL) and arrive at Las Vegas Harry Reid Intl (LAS).

Here are some options for this route, based on selected ticket types and cabin classes:

• Frontier: a carry-on bag and a checked bag in Economy Class
• Southwest: a carry-on bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 344 round-trip via Wichita Eisenhower National (ICT), compared to C$ 452 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 45–C$ 139 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

One-stop flights from St. Louis to Las Vegas most commonly connect through:

• Denver Intl (DEN) – 58% of one-stop connections
• Salt Lake City (SLC) – 11% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) – 8% of one-stop connections
• Dallas/Fort Worth (DFW) – 8% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 19% on the St. Louis to Las Vegas route. Monday is the cheapest departure day at C$ 368 round-trip on average, while Wednesday is the most expensive at C$ 451, a difference of C$ 83. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the St. Louis to Las Vegas route, 20% of flights were delayed in the past 3 months, with delays averaging 2 hours 16 minutes.

Morning is the busiest departure period on St. Louis to Las Vegas flights, with 40% leaving in that window. Afternoon departures account for 40%, Evening flights for 20%, and Night flights for 0%.

Some of the most popular sights in Las Vegas are Fremont Street Experience, Las Vegas Convention Center, and The Venetian. These are among the most viewed places in Las Vegas on KAYAK.

These are the earliest and latest flight times available from St. Louis to Las Vegas:

• Earliest: departs at 5:05 am and lands at 8:40 am
• Latest: departs at 10:45 pm and lands at 2:20 am.

The flight takes about 3h 35m.

Last-minute fares on this route – booked within 2 weeks of departure – run 27% above the route average of C$ 425. Book 7 weeks before departure for the lowest fares.

A direct flight from St. Louis to Las Vegas takes 3h 35m, covering 3,540 km.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 432 to C$ 3,858. That means the highest observed fare was about 9x higher than the lowest one.

One-way fares from St. Louis to Las Vegas are currently lower than usual. Average one-way flight prices are about C$ 249, which is 8% below the typical average for this route.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Wichita Eisenhower National (ICT) gives the shortest average 1-stop total travel time at 4h 44m, compared with 5h 12m via Kansas City (MCI) and 5h 24m via Dallas Love Field (DAL).

Las Vegas is 2 hours behind St. Louis (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Las Vegas Harry Reid Intl Airport (LAS) hosts 5 major car rental companies, with daily rates starting from around C$ 12 for economy cars. Top options include:
• Easirent
• Ace
• Fox
• Dollar
• Thrifty

Round-trip flights from St. Louis to Las Vegas range from C$ 300 to C$ 609, with an average of C$ 425 over the past 12 months. Anything below C$ 300 counts as a good deal.

JetBlue is the only airline on the St. Louis to Las Vegas route offering in-flight Wi-Fi. Pricing depends on fare class.