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Cheap flights from St. Louis to Jacksonville from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Jacksonville departing on 11/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Jacksonville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:35 am - 5:51 pmSTL  Lambert-St Louis-JAX Jacksonville
6h 16m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:46 pm - 9:40 amJAX  Jacksonville-STL Lambert-St Louis
15h 54m1 stop Atlanta Hartsfield-Jackson
$105Frontier
Thu, Oct 22 - Sun, Oct 25
Frontier Logo
10:35 am - 5:51 pmSTL  Lambert-St Louis-JAX Jacksonville
6h 16m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:20 pm - 9:40 amJAX  Jacksonville-STL Lambert-St Louis
16h 20m1 stop Atlanta Hartsfield-Jackson
$106Frontier
Thu, Oct 8 - Thu, Oct 15
Frontier Logo
10:35 am - 5:51 pmSTL  Lambert-St Louis-JAX Jacksonville
6h 16m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:46 pm - 5:40 pmJAX  Jacksonville-STL Lambert-St Louis
23h 54m1 stop Atlanta Hartsfield-Jackson
$106Frontier
Thu, Oct 8 - Sun, Oct 11
Southwest Logo
10:20 am - 1:20 pmSTL  Lambert-St Louis-JAX Jacksonville
2h 00mnonstop
Southwest Logo
6:10 am - 7:25 amJAX  Jacksonville-STL Lambert-St Louis
2h 15mnonstop
$221Southwest
Wed, Oct 7 - Wed, Oct 14
Southwest Logo
10:20 am - 1:20 pmSTL  Lambert-St Louis-JAX Jacksonville
2h 00mnonstop
Southwest Logo
6:15 am - 7:25 amJAX  Jacksonville-STL Lambert-St Louis
2h 10mnonstop
$221Southwest
Wed, Sep 9 - Wed, Sep 16
Southwest Logo
11:15 am - 7:40 pmSTL  Lambert-St Louis-JAX Jacksonville
7h 25m1 stop Baltimore/Washington
Southwest Logo
6:15 am - 7:25 amJAX  Jacksonville-STL Lambert-St Louis
2h 10mnonstop
$224Southwest
Sat, Sep 19 - Tue, Sep 22
Delta Logo
12:00 pm - 5:43 pmSTL  Lambert-St Louis-JAX Jacksonville
4h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:10 am - 10:51 amJAX  Jacksonville-STL Lambert-St Louis
5h 41m1 stop Atlanta Hartsfield-Jackson
$227Delta
Tue, Oct 6 - Tue, Oct 13
Delta Logo
7:00 am - 11:53 amSTL  Lambert-St Louis-JAX Jacksonville
3h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:53 pm - 9:23 pmJAX  Jacksonville-STL Lambert-St Louis
6h 30m1 stop Atlanta Hartsfield-Jackson
$227Delta
Wed, Oct 7 - Tue, Oct 13
American Airlines Logo
10:21 am - 6:25 pmSTL  Lambert-St Louis-JAX Jacksonville
7h 04m1 stop Charlotte Douglas
American Airlines Logo
3:45 pm - 9:49 pmJAX  Jacksonville-STL Lambert-St Louis
7h 04m1 stop Miami
$227American Airlines
Sat, Sep 19 - Tue, Sep 22
American Airlines Logo
6:15 pm - 12:22 amSTL  Lambert-St Louis-JAX Jacksonville
5h 07m1 stop Miami
American Airlines Logo
12:04 pm - 5:25 pmJAX  Jacksonville-STL Lambert-St Louis
6h 21m1 stop Miami
$227American Airlines
Thu, Dec 3 - Mon, Dec 7

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Frontier flights from St. Louis to Jacksonville

Our best Frontier deals on St. Louis to Jacksonville flight tickets
Frontier
Oct 22
STL10:35 amLambert-St Louis
6h 16m
1 stop
JAX5:51 pmJacksonville
Oct 25
JAX6:46 pmJacksonville
15h 54m
1 stop
STL9:40 amLambert-St Louis
$105
Frontier
Oct 8
STL10:35 amLambert-St Louis
6h 16m
1 stop
JAX5:51 pmJacksonville
Oct 15
JAX6:20 pmJacksonville
16h 20m
1 stop
STL9:40 amLambert-St Louis
$106
Frontier
Oct 12
STL10:35 amLambert-St Louis
6h 16m
1 stop
JAX5:51 pmJacksonville
Oct 18
JAX6:46 pmJacksonville
15h 54m
1 stop
STL9:40 amLambert-St Louis
$107

Southwest flights from St. Louis to Jacksonville

Our best Southwest deals on St. Louis to Jacksonville flight tickets
Southwest
Aug 28
STL3:45 pmLambert-St Louis
4h 20m
1 stop
JAX9:05 pmJacksonville
Aug 31
JAX7:50 amJacksonville
4h 45m
1 stop
STL11:35 amLambert-St Louis
$334
Southwest
Aug 28
STL2:05 pmLambert-St Louis
2h 00m
JAX5:05 pmJacksonville
Aug 31
JAX7:50 amJacksonville
4h 45m
1 stop
STL11:35 amLambert-St Louis
$335
Southwest
Aug 28
STL2:05 pmLambert-St Louis
2h 00m
JAX5:05 pmJacksonville
Aug 31
JAX2:00 pmJacksonville
2h 10m
STL3:10 pmLambert-St Louis
$336

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Jacksonville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from St. Louis to Jacksonville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Thu 10/22

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

Sun 10/25

6:46 pm-9:40 am

1 stop15h 54m

$105

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Thu 10/8

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

Thu 10/15

6:20 pm-9:40 am

1 stop16h 20m

$106

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Thu 10/8

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

Sun 10/11

6:46 pm-5:40 pm

1 stop23h 54m

$106

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Wed 10/7

10:20 am-1:20 pm

Nonstop2h 00m

Jacksonville

Wed 10/14

6:10 am-7:25 am

Nonstop2h 15m

$221
Quickest round-trip

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Wed 9/9

10:20 am-1:20 pm

Nonstop2h 00m

Jacksonville

Wed 9/16

6:15 am-7:25 am

Nonstop2h 10m

$221

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Sat 9/19

11:15 am-7:40 pm

1 stop7h 25m

Jacksonville

Tue 9/22

6:15 am-7:25 am

Nonstop2h 10m

$224

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Tue 10/6

12:00 pm-5:43 pm

1 stop4h 43m

Jacksonville

Tue 10/13

6:10 am-10:51 am

1 stop5h 41m

$227

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Wed 10/7

7:00 am-11:53 am

1 stop3h 53m

Jacksonville

Tue 10/13

3:53 pm-9:23 pm

1 stop6h 30m

$227

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Sat 9/19

10:21 am-6:25 pm

1 stop7h 04m

Jacksonville

Tue 9/22

3:45 pm-9:49 pm

1 stop7h 04m

$227

St. LouisJacksonville

STL Lambert-St Louis - JAX Jacksonville

STLJAX

Lambert-St Louis

Thu 12/3

6:15 pm-12:22 am

1 stop5h 07m

Jacksonville

Mon 12/7

12:04 pm-5:25 pm

1 stop6h 21m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Jacksonville from

How to get the cheapest flight ticket from St. Louis to Jacksonville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Jacksonville?

Prices are currently low for flights on this route.

Typical prices usually range from $275 to $417.
The lowest price recently found on this route was $105.

What is the cheapest month to fly to Jacksonville?

If you are unable to visit Jacksonville during the month of October, then departing from St. Louis during the month September is also very affordable. Most momondo users find prices during this month for around $307.

What is the cheapest day to depart on your flight to Jacksonville?

According to our data, Friday is the cheapest day to fly to Jacksonville from St. Louis. The lowest ticket price found for a Friday departure recently was $317. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $433.

What is the cheapest time of day to depart on your flight to Jacksonville?

Flying to Jacksonville from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $291 when looking at flights departing in the evening. Flights to Jacksonville are more costly in the afternoon, with an average ticket price of $367. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Jacksonville flight route?

Fly from Lambert-St Louis to Jacksonville for the best Lambert-St Louis - Jacksonville flight prices

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

You are more likely to see cheaper flights to Jacksonville from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Jacksonville for around $348 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jacksonville from St. Louis for as low as $264 on momondo.

What cabin class options are available on St. Louis to Jacksonville flights?

There is only 1 cabin class available to choose from on St. Louis to Jacksonville flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Jacksonville flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Jacksonville.

How have St. Louis to Jacksonville flight prices changed over time?

As of August 2026, prices for St. Louis to Jacksonville flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Jacksonville

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Jacksonville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Jacksonville (STL to JAX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Jacksonville

Best Price Found

$314

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Jacksonville

1 airport
The best one-way flight to Jacksonville from St. Louis in the past 72 hours is $314. The best round-trip flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $237.
The fastest flight from St. Louis to Jacksonville takes 1h 55m
Direct flights go from St. Louis to Jacksonville every day.
There is 1 airport in Jacksonville. From St. Louis there are direct flights to Jacksonville (JAX).
Search flight deals

Frequently asked questions about flying from St. Louis to Jacksonville

  • How far is Lambert-St Louis to Jacksonville by plane?

    Lambert-St Louis and Jacksonville are 750.5 mi apart from one another. By plane, this route typically takes 1h 55m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Jacksonville Airport?

    Prices for flights from Lambert-St Louis Airport to Jacksonville Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Jacksonville Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Jacksonville Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Jacksonville Airport.

  • What documentation or ID do you need to fly to Jacksonville Airport?

    The travel and health documents required for your trip to Jacksonville Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Jacksonville Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from St. Louis to Jacksonville?

  • What is the most popular airline from St. Louis to Jacksonville?

Best airlines flying from St. Louis to Jacksonville

Compare and see reviews for airlines that fly from St. Louis to Jacksonville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $168Free CancellationRating
7.8
8,508 reviews
Search Delta flights
SouthwestPriceFrom $234Free CancellationRating
8.0
4,220 reviews
Search Southwest flights
JetBluePriceFrom $251Free CancellationRating
7.1
3,038 reviews
Search JetBlue flights
American AirlinesPriceFrom $267Free CancellationRating
7.1
11,940 reviews
Search American Airlines flights

  • Southwest Flights From St. Louis to Jacksonville

    The lowest priced Southwest flight from St. Louis to Jacksonville from the last 72 hours was $234. Generally, Southwest has 3 flights on this route every week with an average price of $346. Southwest is rated 8.0/10 by our users.

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Fernandina Beach
Jacksonville Beach
Orange Park
Kingsland
Waycross
Ponte Vedra Beach
Atlantic Beach
Neptune Beach
St Johns
Yulee
Cumberland Island

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Jacksonville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Jacksonville from St. Louis.

Can I find flights from St. Louis to Jacksonville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Jacksonville from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Jacksonville?

Once you have performed a search for St. Louis to Jacksonville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Jacksonville right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Jacksonville from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Jacksonville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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