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

Popular airlines from Harry Reid Intl. Airport (LAS) to St. Louis, MO (SUS-Spirit of St. Louis)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS) cost?
Discover the latest flight deals from LAS to SUS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from LAS to SUS?
The cheapest flights from LAS to SUS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from LAS to SUS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from LAS to SUS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS)?
You’ll have to book a flight with a layover if you’re traveling from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from LAS to SUS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS)?
To arrive at Spirit of St. Louis Airport (SUS) on time, book a flight that leaves Harry Reid Intl. Airport (LAS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for St. Louis from Harry Reid Intl. Airport (LAS)?
Compare your flight options from Harry Reid Intl. Airport (LAS) to Lambert-St. Louis Intl. Airport (STL). This is the only St. Louis airport you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS) last-minute?
Last-minute fares from LAS to SUS are usually more expensive. For the best prices, start searching for flights ahead of time. That said, if you can play around with your travel dates, it’s possible to find a cheap ticket right before your trip.
Is it cheaper to book a LAS to SUS flight and hotel package?
Compared with arranging hotels and flights separately, booking a LAS to SUS flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Just pick your flights and choose from our extensive range of stays, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Spirit of St. Louis Airport (SUS)?
It’s generally possible to reschedule or cancel your LAS to SUS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find further details on our Customer Service portal.
*Available to One Key members.