STL - JAX

$79 Find Cheap Flights from St. Louis to Jacksonville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Jacksonville departing on 7/17. 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

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

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

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

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

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

Tue, Jul 1 - Tue, Jul 15
American Airlines Logo
6:00 am - 11:20 amSTL-JAX
4h 20m1 stop
American Airlines Logo
5:38 pm - 11:57 pmJAX-STL
7h 19m1 stop
$157American Airlines
Find Deal
Thu, Jul 10 - Thu, Jul 17
Delta Logo
7:00 am - 2:44 pmSTL-JAX
6h 44m1 stop
Delta Logo
5:10 am - 8:22 amJAX-STL
4h 12m1 stop
$177Delta
Find Deal
Tue, Jul 15 - Tue, Jul 22
American Airlines Logo
4:45 pm - 12:24 amSTL-JAX
6h 39m1 stop
American Airlines Logo
2:25 pm - 9:19 pmJAX-STL
7h 54m1 stop
$187American Airlines
Find Deal
Sun, Jul 6 - Thu, Jul 24
Southwest Logo
8:40 pm - 11:40 pmSTL-JAX
2h 00mnonstop
Southwest Logo
8:30 pm - 9:45 pmJAX-STL
2h 15mnonstop
$197Southwest
Find Deal
Thu, Jul 10 - Thu, Jul 17
Southwest Logo
8:25 pm - 11:25 pmSTL-JAX
2h 00mnonstop
Southwest Logo
9:10 pm - 12:05 amJAX-STL
3h 55m1 stop
$207Southwest
Find Deal
Tue, Jul 1 - Sat, Jul 12
American Airlines Logo
5:30 am - 10:15 amSTL-JAX
3h 45m1 stop
American Airlines Logo
11:03 am - 2:23 pmJAX-STL
4h 20m1 stop
$209American Airlines
Find Deal
Tue, Jul 8 - Thu, Jul 17
Southwest Logo
5:15 am - 11:00 amSTL-JAX
4h 45m1 stop
Southwest Logo
8:30 pm - 9:45 pmJAX-STL
2h 15mnonstop
$214Southwest
Find Deal
Wed, Jul 23 - Sun, Jul 27
Delta Logo
7:00 am - 2:44 pmSTL-JAX
6h 44m1 stop
Delta Logo
5:10 am - 9:41 amJAX-STL
5h 31m1 stop
$219Delta
Find Deal
Tue, Jul 1 - Sat, Jul 12
United Airlines Logo
5:00 am - 2:54 pmSTL-JAX
8h 54m2 stops
United Airlines Logo
8:00 am - 12:46 pmJAX-STL
5h 46m1 stop
$294United Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 8
United Airlines Logo
12:25 pm - 11:15 pmSTL-JAX
9h 50m2 stops
United Airlines Logo
8:00 am - 2:27 pmJAX-STL
7h 27m1 stop
$322United Airlines
Find Deal
Expert advice

Expert advice for your flight from St. Louis to Jacksonville

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
STL

For a smooth departure, avoid peak hours at STL when security lines can be slow. Consider using MetroLink for easy access to the airport.

Read more about STLby Yulia Denisyuk
JAX

Upon arrival at JAX, consider renting a car for convenient travel around Florida. Rental offices are located in the arrivals hall.

Read more about JAXby Marisa Garcia
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on JAX

Marisa Garcia

Marisa Garcia

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.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

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.

Read more
Useful Info

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

Get data-powered insights and trends into flights from St. Louis to Jacksonville 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 St. Louis to Jacksonville?

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

When flying from St. Louis to Jacksonville, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Jacksonville, 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 St. Louis to Jacksonville is February, where tickets cost $288 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $367 and $367 respectively.

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

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 $317, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Jacksonville, 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 St. Louis to Jacksonville, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonApril
High seasonJuly
Cheapest flight$79
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from St. Louis to Jacksonville

When to book flights from St. Louis to Jacksonville

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

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

    In the last 3 days, the lowest price for a flight from St. Louis to Jacksonville was $79 for a one-way ticket and $157 for a round-trip.

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

    No

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

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Jacksonville, also known as Jacksonville.

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

    Only American Airlines offers inflight Wi-Fi service on the St. Louis to Jacksonville flight route.

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

    The Boeing 737-700 Passenger/BBJ1 (winglets) is the aircraft model that flies most regularly on the St. Louis to Jacksonville flight route.

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Jacksonville are Southwest and Delta. With an average price for the route of $364 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 $341 and an overall rating of 8.0.

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

    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 Jacksonville.

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

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

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

    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 Jacksonville from St. Louis 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 St. Louis to Jacksonville

  • Looking for a cheap flight? 25% of our users found flights on this route for $125 or less one-way and $267 or less round-trip.

Prefer to fly direct from St. Louis to Jacksonville?

Find which airlines fly direct from Lambert-St Louis Airport to Jacksonville Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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
See more direct flights

Top 3 airlines serving from St. Louis to Jacksonville

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Jacksonville. 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 Jacksonville? 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 4287 reviews
7.1Food
8.2Boarding
8.0Comfort
7.6Entertainment
8.6Crew
Airline reviews

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

6.0 GoodVincent, May 2025MDW - MCO
Read more Southwest reviews

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

It is southwest seat was ok. Not the most comfortable seat

Plz don't take away free bags and free seating

Very good. Sad to learn Southwest is going start to charge for bags

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

It went well. Plane wasn't full. Will be great when assigned seating is in place

Excellent experience. WiFi worked on this leg of My trip

Flight was great, but golf bag never made it until later in the day. Even though I had a nonstop flight it was placed on a different one. They made it right with flight credits and I was able to get it the same day.

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Crew was friendly Love the entertainment in the seat head rest.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

During service there was a garbage/beverage spill near our seats that never was cleaned up. On a relatively short flight when we’re fortunate enough to actually have in flight movies available, the flight attendants pitching the AADVANTAGE credit card shouldn’t talk for the last 10 minutes of the flight so that we miss the end of the movie.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Would have thought that they would gas up plane before everyone got on board

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Standard. No different than a discount carrier on a short trip.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.