Cheap Flights from Lexington (LEX) to St Louis (STL)

Compare Lexington Blue Grass to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Find the cheapest month to fly from Lexington Blue Grass to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Lexington Blue Grass to St Louis flights are currently cheapest in September.

Lexington Blue Grass to St Louis: Alternative routes

Compare routes from Lexington Blue Grass to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Lexington to St Louis: Flight information

The things to know before you go.
Cheapest flight found$349
Cheapest month to flySeptember

Finding cheap flights from Lexington Blue Grass to St Louis: Frequently asked questions

The best price we found for a return flight from Lexington Blue Grass to St Louis is $349. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Lexington Blue Grass to St Louis. But we found flights with one or more stops from $349.
As of August 2025, there are no flights flying from Lexington Blue Grass to St Louis.
The cheapest month to fly from Lexington Blue Grass to St Louis is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lexington Blue Grass Airport to St Louis Airport on Friday, 5 September 2025.
No airlines currently offer direct flights between Lexington Blue Grass Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to St Louis.

Travelling from Blue Grass Airport (LEX) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis's timezone is UTC-5, making St Louis one hour behind Lexington.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably catch your LEX to STL flight.

  • Be prepared for longer lines during popular months such as July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a wise move.

  • If you'd like to split up your journey, just deselect 'Direct flights only' when searching for your ticket from Blue Grass Airport to Lambert-St. Louis International Airport. Here are the top stopovers between LEX and STL:

    • O'Hare International Airport

    • Detroit Metropolitan Wayne County Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Blue Grass Airport (LEX) to Lambert-St. Louis International Airport (STL)

  • Currently, $259 is the lowest price we've found for a one-way Blue Grass Airport to Lambert-St. Louis International Airport flight. The best price for a return ticket is $349. Remember that fares could change due to availability at the time of booking.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from LEX to STL if you book ahead. Airlines often offer some excellent early bird rates.

  • The 'Whole month' tool shows you the cheapest flights from Blue Grass Airport to Lambert-St. Louis International Airport across each month. It's a great way to find a bargain if your travel dates are flexible.

  • Snapping up cheap flights from LEX to STL is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as fares go down.

  • Choose your preferred departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Blue Grass Airport to Lambert-St. Louis International Airport.

Handy information about Blue Grass Airport (LEX)

  • You'll find LEX at 4000 Terminal Drive, Suite 206.

  • Of all flights leaving Blue Grass Airport, 77.12% land on time at their destination.

  • Central Lexington to Blue Grass Airport is approximately 13 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • You can expect a trip time of about 1 hour 10 minutes on public transport.

  • Booked an early flight from Blue Grass Airport to Lambert-St. Louis International Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these hotels near LEX:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The street address for STL is 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport is approximately 26 kilometres from central St Louis. The drive time takes about 20 minutes.

  • It'll take around 35 minutes if you're travelling on public transport.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to pick your travel dates for your flight from Blue Grass Airport to Lambert-St. Louis International Airport. July is the most popular month to visit St Louis. If you're after a more relaxed vibe, go in April.

  • When booking your flight from Blue Grass Airport to Lambert-St. Louis International Airport, consider the type of weather you like. July is the warmest month in St Louis, with the temperature ranging from 17ºC (63ºF) to 33ºC (91ºF).

  • January sees average temperatures of between -8ºC (18ºF) and 7ºC (45ºF). Look for cheap tickets from LEX to STL around that time if you want to travel in cooler conditions.

Explore more of United States

  • Chicago is just one of the many places in United States waiting to be discovered once you've seen the sights of St Louis. Around 418 kilometres away to the north-east, popular attractions include Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • Indianapolis is another essential stop in United States and is around 370 kilometres east of St Louis. No journey is complete without dropping by The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.