$110 Cheap Flights from St. Louis (STL) to Jacksonville (JAX)

View $110 flight on Sun, Jul 20, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Jacksonville International Airport (JAX)

Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $110 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Jun 6 - Wed, Jun 11
STL
St. Louis
JAX
Jacksonville
$219 Roundtrip, just found
$219
Roundtrip
just found
Select American Airlines flight, departing Fri, Jun 6 from St. Louis to Jacksonville, returning Wed, Jun 11, priced at $219 just found
Delta
Fri, Jun 6 - Wed, Jun 11
STL
St. Louis
JAX
Jacksonville
$219 Roundtrip, just found
$219
Roundtrip
just found
Select Delta flight, departing Fri, Jun 6 from St. Louis to Jacksonville, returning Wed, Jun 11, priced at $219 just found
United
Fri, Jun 6 - Wed, Jun 11
STL
St. Louis
JAX
Jacksonville
$219 Roundtrip, just found
$219
Roundtrip
just found
Select United flight, departing Fri, Jun 6 from St. Louis to Jacksonville, returning Wed, Jun 11, priced at $219 just found
American Airlines
Sat, Sep 20 - Tue, Sep 23
STL
St. Louis
JAX
Jacksonville
$220 Roundtrip, just found
$220
Roundtrip
just found
Select American Airlines flight, departing Sat, Sep 20 from St. Louis to Jacksonville, returning Tue, Sep 23, priced at $220 just found
Delta
Fri, Jun 6 - Wed, Jun 11
STL
St. Louis
JAX
Jacksonville
$222 Roundtrip, just found
$222
Roundtrip
just found
Select Delta flight, departing Fri, Jun 6 from St. Louis to Jacksonville, returning Wed, Jun 11, priced at $222 just found
United
Sat, Aug 30 - Sat, Sep 6
STL
St. Louis
JAX
Jacksonville
$224 Roundtrip, found 15 hours ago
$224
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Aug 30 from St. Louis to Jacksonville, returning Sat, Sep 6, priced at $224 found 15 hours ago
United
Fri, May 30 - Mon, Jun 2
STL
St. Louis
JAX
Jacksonville
$226 Roundtrip, found 3 hours ago
$226
Roundtrip
found 3 hours ago
Select United flight, departing Fri, May 30 from St. Louis to Jacksonville, returning Mon, Jun 2, priced at $226 found 3 hours ago
United
Fri, Sep 5 - Mon, Sep 8
STL
St. Louis
JAX
Jacksonville
$227 Roundtrip, found 4 hours ago
$227
Roundtrip
found 4 hours ago
Select United flight, departing Fri, Sep 5 from St. Louis to Jacksonville, returning Mon, Sep 8, priced at $227 found 4 hours ago
Delta
Fri, Jun 6 - Wed, Jun 11
STL
St. Louis
JAX
Jacksonville
$234 Roundtrip, just found
$234
Roundtrip
just found
Select Delta flight, departing Fri, Jun 6 from St. Louis to Jacksonville, returning Wed, Jun 11, priced at $234 just found
Southwest Airlines
Wed, Jun 11 - Thu, Jun 19
STL
St. Louis
JAX
Jacksonville
$244 Roundtrip, found 1 hour ago
$244
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Wed, Jun 11 from St. Louis to Jacksonville, returning Thu, Jun 19, priced at $244 found 1 hour ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX) cost?
Book cheap return flights starting from $249 from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving STL on May 11 2025 and touching down at JAX. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from STL to JAX?
The cheapest flights from STL to JAX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
You can fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX) on a Southwest Airlines flight.
What is the cheapest airline that flies from STL to JAX?
With tickets starting at $125 for a one-way flight from STL to JAX, Southwest Airlines is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on June 3 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
On average, there are 3 nonstop flights flying from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX) every week. If you don’t find one that fits your schedule, consider taking a flight with a layover. Filter your search results on Expedia to include one or more stops and select the next best option.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
The 2 PM departures from STL to JAX are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from STL to JAX?
If you jet off on a Friday, you’ll get the largest range of choices for flights from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
Take the earliest flight at around 2:30PM UTC-6, heading out of Lambert-St. Louis Intl. Airport (STL). You’ll be flying for approximately 2h, touching down at Jacksonville Intl. Airport (JAX) at approximately 5:30PM UTC-5.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
The average flight duration from STL to JAX is 2 hours, covering a total distance of 750 mi.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX) route, aim to travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**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.
What airports do you fly into for Jacksonville from Lambert-St. Louis Intl. Airport (STL)?
Check out your flight options from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX). This is the only airport in Jacksonville you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX) last-minute?
Last-minute fares from STL to JAX are usually more expensive. For the lowest prices, start looking for flights early. That being said, if you can play around with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a STL to JAX flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to JAX flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one convenient place takes the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Jacksonville Intl. Airport (JAX)?
In most cases, you can modify or cancel your STL to JAX flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline’s fees and rules on flight changes, or if you’d like further details, go to our Customer Service portal.
*Available to One Key members.