Cheap Flights from St. Louis (CPS) to Lexington (LEX)

Popular airlines from St. Louis, MO (CPS-St. Louis Downtown) to Blue Grass Airport (LEX)

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Frequently asked questions

How much does a flight from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX) cost?
Get a cheap one-way flight or cheap return flight from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX)?
The cheapest month to fly from CPS to LEX is , when there's less demand. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest CPS to LEX flight.
How many flights per day from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX)?
There are no daily nonstop flights departing from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from CPS to LEX?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX)?
Select a flight from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX) last-minute?
Waiting until just before your trip to book your flight from CPS to LEX generally means paying more. While you may come across some last-minute deals, they're not always guaranteed. Keep your travel plans flexible for the best chance of getting a bargain.
Is it cheaper to book a CPS to LEX flight and hotel package?
Compared with arranging flights and hotels separately, booking a CPS to LEX flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from St. Louis Downtown Airport (CPS) to Blue Grass Airport (LEX)?
Typically, you can cancel or reschedule your CPS to LEX flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
St. Louis Downtown
Destination airport
Blue Grass
Distance
303 mi

Book with confidence

Book with confidence

St. Louis to Lexington Flights

The cheapest times to fly from St. Louis to Lexington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Lexington are during the month of . You can find some of the cheapest flights from St. Louis to Lexington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Lexington

Sunday is one of the best days to book for cheap flights from St. Louis to Lexington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Lexington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Lexington in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Lexington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Lexington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Lexington Flights

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Explore a world of travel with Expedia

*Available to One Key members.