STL - LEX

$657 Find Cheap Flights from St. Louis to Lexington

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Lexington departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Lexington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Lexington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Lexington, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$657
United Airlines
Mon 2/9Fri 2/13
STL - LEX • 1 stop
Cheapest one-way
Multiple Airlines
Mon 1/26
STL - LEX • multi-stop
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Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Lexington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Lexington

Mon, Feb 9 - Fri, Feb 13
United Airlines Logo
3:11 pm - 10:40 pm
STL
-
LEX
6h 29m
1 stop
United Airlines Logo
5:45 pm - 10:59 pm
LEX
-
STL
6h 14m
1 stop
$657United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Lexington flights

Get data-powered insights and trends into flights from St. Louis to Lexington to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from St. Louis to Lexington?

Percentage of 1-stop round-trip flights from St. Louis to Lexington chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 41% of KAYAK users who clicked on 1-stop flights from St. Louis to Lexington picked an itinerary connecting there.

What is the cheapest layover airport when flying from St. Louis to Lexington?

Average round-trip price for 1-stop flights from St. Louis to Lexington clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Detroit (DTW) offer the most affordable fares, with an average round-trip price of $288.

Which layover airport offers the shortest total travel time from St. Louis to Lexington?

Shortest average total travel time for 1-stop one-way flights from St. Louis to Lexington via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Atlanta (ATL) for the shortest journey. The average one-way travel time for flights connecting there is 4h 10m.

Which layover airport has the quickest connection when flying from St. Louis to Lexington?

Average layover duration at different layover airports for 1-stop one-way flights from St. Louis to Lexington, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Atlanta (ATL) often has the shortest layovers from St. Louis to Lexington, with an average of 1h 20m.

Good to know

Cheapest flight$657
Flight from St. Louis to Lexington

When to book flights from St. Louis to Lexington

Are your dates flexible? Find out the best times to travel from St. Louis to Lexington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Lexington

  • What is the cheapest flight from St. Louis to Lexington?

    In the last 3 days, the lowest price for a flight from St. Louis to Lexington was $657 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Lexington?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Lexington?

    St. Louis and Lexington are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Lexington Blue Grass.

  • Which aircraft models fly most regularly from St. Louis to Lexington?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Lexington?

    SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Lexington, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Lexington, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Lexington are Delta and American Airlines. With an average price for the route of $288 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $323 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from St. Louis to Lexington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Lexington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Lexington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lexington from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Lexington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lexington with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and LEX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Lexington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lexington from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Lexington

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Lexington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Lexington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8111 reviews
8.5Crew
7.9Comfort
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

10.0 ExcellentSenthil Kumar, Jan 2026
PDX - ATL
Read more Delta reviews

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything you need to know for your flight from St. Louis to Lexington

Information on your arrival and departure airports