JAX - STL

$108 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 4/13. 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
$285
Overall average: $304
American Airlines
Tue 4/14Tue 4/21
JAX - STL • 1 stop
Cheapest non-stop
$291
Typical prices: $288-$394
Southwest
Thu 4/9Mon 4/13
JAX - STL • Non-stop
Advice from real travelers
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
Cheapest • from $236 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 2h 20m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $380 (round-trip)
Shortest trip • 3h 43m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 50% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
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

Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
7:14 pm - 11:46 pm
JAX
-
STL
5h 32m
1 stop
American Airlines Logo
6:29 am - 1:24 pm
STL
-
JAX
5h 55m
1 stop
$285American Airlines
Fri, May 1 - Mon, May 4
Frontier Logo
3:27 pm - 6:50 am
JAX
-
STL
16h 23m
2 stops
Frontier Logo
8:23 pm - 5:45 pm
STL
-
JAX
20h 22m
1 stop
$288Frontier
Thu, Apr 9 - Mon, Apr 13
Southwest Logo
3:35 pm - 4:50 pm
JAX
-
STL
2h 15mnonstop
Southwest Logo
1:55 pm - 4:55 pm
STL
-
JAX
2h 00mnonstop
$291Southwest
Mon, Apr 20 - Tue, Apr 21
Southwest Logo
7:05 pm - 11:25 pm
JAX
-
STL
5h 20m
1 stop
Southwest Logo
10:15 am - 1:15 pm
STL
-
JAX
2h 00mnonstop
$293Southwest
Thu, Apr 16 - Fri, Apr 17
Frontier Logo
6:25 pm - 6:50 am
JAX
-
STL
13h 25m
1 stop
Frontier Logo
8:23 pm - 6:38 pm
STL
-
JAX
21h 15m
2 stops
$294Frontier
Mon, Apr 20 - Tue, Apr 21
Delta Logo
7:59 pm - 11:36 pm
JAX
-
STL
4h 37m
1 stop
Delta Logo
7:25 am - 12:09 pm
STL
-
JAX
3h 44m
1 stop
$298Delta
Tue, Apr 14 - Sun, Apr 19
Southwest Logo
8:20 am - 9:35 am
JAX
-
STL
2h 15mnonstop
Southwest Logo
6:00 am - 1:40 pm
STL
-
JAX
6h 40m
1 stop
$300Southwest
Thu, Apr 9 - Mon, Apr 13
Southwest Logo
8:15 pm - 11:15 pm
JAX
-
STL
4h 00m
1 stop
Southwest Logo
1:55 pm - 4:55 pm
STL
-
JAX
2h 00mnonstop
$301Southwest
Mon, Apr 20 - Tue, Apr 21
Southwest Logo
7:05 pm - 11:25 pm
JAX
-
STL
5h 20m
1 stop
Southwest Logo
1:15 pm - 9:30 pm
STL
-
JAX
7h 15m
2 stops
$303Southwest
Fri, May 29 - Tue, Jun 2
American Airlines Logo
5:50 pm - 11:59 pm
JAX
-
STL
7h 09m
1 stop
American Airlines Logo
5:00 pm - 10:55 pm
STL
-
JAX
4h 55m
1 stop
$305American Airlines
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 May and March, where the average cost of round-trip tickets is $457 and $443 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $420 on average.

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 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 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$122
Best time to beat the crowds but there is an average 10% 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 $108 for a one-way ticket and $236 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, JetBlue, and American Airlines 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 737-800 Passenger/BBJ2 (winglets) 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 $314 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 $328 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 $283 or less one-way and $379 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 4324 reviews
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
Airline reviews

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

10.0 ExcellentEric, Mar 2026
MCO - BNA
Read more Southwest reviews

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Long layover between flights to Long Island from BWI - need better coordination between flights

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

An entire day of delays. Cost lots of money. Meals and a hotel.

Great plane, great attendants,great flight crew,on time. Wonderful flight home..

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.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

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(?)

It was great. Smooth flight, comfortable, left on time and landed on time.

Really good. I accidentally left my duffel on the plane and the reps were so friendly in retrieving it.

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Flights were constantly delayed. CRW took 50 minutes to get bags

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

The flight attendants and the service is getting worse by the day.

Other than nearly three hour delay for maintenance issues, everything went smooth

why would I bother with this airline and pick seats when I am asked to move for a weight imbalance

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

Information on your arrival and departure airports