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

Popular airlines from Blue Grass Airport (LEX) to St. Louis, MO (SUS-Spirit of St. Louis)

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $384
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $384

Frequently asked questions

How much does a flight from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS) cost?
Secure a cheap one-way flight or cheap return flight from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS)?
The cheapest month to fly from LEX to SUS is , when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS)?
To find the cheapest airline flying from LEX to SUS, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS)?
There are no daily nonstop flights departing from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from LEX to SUS?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS)?
To land at Spirit of St. Louis Airport (SUS) on time, opt for a flight that takes off from Blue Grass Airport (LEX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS) last-minute?
Booking your plane ticket from LEX to SUS shortly before your trip is generally more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a LEX to SUS flight and hotel package?
Compared with arranging flights and hotels separately, booking a LEX to SUS flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of travel planning. Just secure your flights and choose from our extensive range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Blue Grass Airport (LEX) to Spirit of St. Louis Airport (SUS)?
It's usually possible to cancel or reschedule your LEX to SUS flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Blue Grass
Destination airport
Spirit of St. Louis
Distance
330 mi

Book with confidence

Lexington to St. Louis Flights

The cheapest times to fly from Lexington to St. Louis

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 Lexington to St. Louis are during the month of . You can find some of the cheapest flights from Lexington to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Lexington to St. Louis: 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 Lexington to St. Louis

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 Lexington to St. Louis 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 Lexington to St. Louis 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 Lexington to St. Louis 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.

 

Lexington to St. Louis Flights

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*Available to One Key members.