JAX - STL

$68 Find Cheap Flights from Jacksonville to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to St. Louis departing on 2/27. 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 St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to St. Louis, 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 Jacksonville to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$177
Overall average: $417
Frontier
Wed 3/11Wed 3/18
JAX - STL • 2 stops
Cheapest non-stop
$284
Typical prices: $383-$534
Southwest
Sat 3/7Tue 3/10
JAX - STL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
JAX provides free unlimited Wi-Fi for all travelers.
Use MetroLink from STL for a quick city connection.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $177 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 24% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Jacksonville to St. Louis (JAX-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to St. Louis 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 Jacksonville to St. Louis

Wed, Mar 11 - Wed, Mar 18
Frontier Logo
8:18 pm - 7:22 am
JAX
-
STL
36h 04m
2 stops
Frontier Logo
11:32 am - 7:33 pm
STL
-
JAX
7h 01m
1 stop
$177Frontier
Tue, Mar 31 - Fri, Apr 3
American Airlines Logo
8:17 am - 3:28 pm
JAX
-
STL
8h 11m
1 stop
American Airlines Logo
4:13 pm - 11:12 pm
STL
-
JAX
5h 59m
1 stop
$187American Airlines
Fri, Apr 17 - Sun, Apr 19
Frontier Logo
8:17 pm - 6:50 am
JAX
-
STL
11h 33m
1 stop
Frontier Logo
11:21 am - 5:13 pm
STL
-
JAX
4h 52m
1 stop
$194Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
6:08 pm - 6:50 am
JAX
-
STL
13h 42m
1 stop
Frontier Logo
11:21 am - 5:13 pm
STL
-
JAX
4h 52m
1 stop
$204Frontier
Mon, May 4 - Wed, May 13
Frontier Logo
10:12 pm - 6:50 am
JAX
-
STL
33h 38m
2 stops
Frontier Logo
8:13 pm - 5:13 pm
STL
-
JAX
20h 00m
1 stop
$230Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
6:08 pm - 6:50 am
JAX
-
STL
13h 42m
1 stop
Frontier Logo
4:55 pm - 7:22 pm
STL
-
JAX
25h 27m
2 stops
$242Frontier
Sat, Mar 7 - Tue, Mar 10
Southwest Logo
7:15 pm - 8:40 pm
JAX
-
STL
2h 25mnonstop
Southwest Logo
7:15 pm - 10:15 pm
STL
-
JAX
2h 00mnonstop
$284Southwest
Tue, Mar 31 - Sat, May 2
Southwest Logo
6:25 am - 7:45 am
JAX
-
STL
2h 20mnonstop
Southwest Logo
6:20 am - 2:10 pm
STL
-
JAX
6h 50m
1 stop
$288Southwest
Wed, Mar 11 - Wed, Mar 18
Southwest Logo
6:25 am - 7:45 am
JAX
-
STL
2h 20mnonstop
Southwest Logo
7:15 pm - 10:15 pm
STL
-
JAX
2h 00mnonstop
$291Southwest
Mon, May 4 - Wed, May 13
Southwest Logo
3:35 pm - 4:50 pm
JAX
-
STL
2h 15mnonstop
Southwest Logo
2:30 pm - 9:30 pm
STL
-
JAX
6h 00m
1 stop
$294Southwest
Booking Insights

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

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

What’s the cheapest day of the week to fly from Jacksonville to St. Louis?

The average price of all round-trip flights from Jacksonville to St. Louis clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to St. Louis on a Tuesday and more expensive on a Sunday. On your return trip to Jacksonville, you should consider flying back on a Friday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Jacksonville to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Jacksonville to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Jacksonville to St. Louis is July, where tickets cost $250 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $417 and $412 respectively.

Can I save money by flying with a layover from Jacksonville to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $322, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Jacksonville to St. Louis?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Jacksonville to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Jacksonville to St. Louis, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Jacksonville to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on JAX

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Jacksonville to St. Louis

When to book flights from Jacksonville to St. Louis

Are your dates flexible? Find out the best times to travel from Jacksonville to St. Louis 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 Jacksonville to St. Louis

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

    In the last 3 days, the lowest price for a flight from Jacksonville to St. Louis was $68 for a one-way ticket and $177 for a round-trip.

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

    No

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

    Jacksonville airport is called Jacksonville and the only airport in St. Louis is Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Jacksonville to St. Louis?

    Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the Jacksonville to St. Louis flight route.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Jacksonville to St. Louis flight route.

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

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

  • On which days can I fly direct from Jacksonville to St. Louis?

    There are nonstop flights from Jacksonville to St. Louis on a daily basis.

  • Which is the best airline for flights from Jacksonville to St. Louis, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Jacksonville to St. Louis are Southwest and Delta. With an average price for the route of $312 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $299 and an overall rating of 7.9.

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

    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 Jacksonville to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Jacksonville 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 Jacksonville to St. Louis?

    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 St. Louis with an airline and back to Jacksonville with another airline. Booking your flights between Jacksonville and STL 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 Jacksonville to St. Louis?

    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 St. Louis from Jacksonville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Jacksonville to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $198 or less one-way and $329 or less round-trip.

Prefer to fly direct from Jacksonville to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Jacksonville to Lambert-St Louis.
Find which airlines fly direct from Jacksonville Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Jacksonville to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Lambert-St Louis to Jacksonville

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 3 airlines serving from Jacksonville to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to St. Louis. 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 Jacksonville to St. Louis? 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.
8.0
SouthwestOverall score based on 4283 reviews
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
Airline reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

10.0 ExcellentMeghan, Feb 2026
MCO - DEN
Read more Southwest reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Everything went smoothly and we even arrived a little bit early.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

The flight was great as well as the airline staff

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

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

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?

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The food is terrible. The staff is wonderful. Comfort is good.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

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

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

Little warm on the plane and delayed for an hour

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

It was fine. My connection in Charlotte to go to WPB was too late and I had to spend the night in the Charlotte Airport in the mini suites.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

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

Information on your arrival and departure airports