Cheap Flights Las Vegas – St. Louis from £25

Flight FAQs

• Which airlines offer the cheapest flights from Las Vegas (LAS) to St. Louis (STL)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as £25 on Cheapest nonstop routes (e.g. LAS to STL on Sun, Feb 22), while Frontier Airlines offers Cheapest nonstop round-trips from £44 departing on Thu, Feb 12 and returning on Sat, Feb 14.

• Which airlines offer direct flights from Las Vegas to St. Louis?

  At the moment, you can catch a direct flight from Las Vegas to St. Louis with the following airlines, including: Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is the flight from Las Vegas (LAS) to St. Louis (STL)?

  It takes about 3 hours 28 minutes to fly from Las Vegas (LAS) to St. Louis (STL).

• When is the best time to book flights from Las Vegas to St. Louis?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Las Vegas to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Las Vegas to St. Louis?

  Based on Trip.com data in the past 4 weeks, there is 4 flight per week flying from Las Vegas to St. Louis. You can check the weekly schedule for popular airlines on this route below: Frontier Airlines: S/-/-/-/T/F/S -- F92018 (16:25)

• How can I find the best deals on flights from Las Vegas to St. Louis?

  To find best deals on flights from Las Vegas to St. Louis, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Feb 22, with one-way flights priced at just £25.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Las Vegas to St. Louis to get the best price?

  The cheapest months to fly from Las Vegas to St. Louis is October, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Las Vegas to St. Louis?

  After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Las Vegas to St. Louis on February 28, 2026 with Frontier Airlines, with prices starting at £17.

• Which airports can I fly through when travelling to St. Louis from Las Vegas?

  You can land at any one of the following hubs in St. Louis, with Harry Reid International Airport to St. Louis Lambert International Airport (LAS-STL) is by far the most common option on this route: St. Louis Downtown Airport (CPS) St. Louis Lambert International Airport (STL).

• What is the time difference between Las Vegas and St. Louis?

  The time difference between St. Louis and Las Vegas is 2h.

• How can I change or cancel my flight ticket from Las Vegas to St. Louis?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.