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Cheap flights from St. Louis to Jacksonville from $53

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 9/19. 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 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$106Frontier
sab, set 19 - sab, set 26
Frontier Logo
6:17 pm - 6:10 pm
STL
-
JAX
22h 53m
1 stop
Frontier Logo
7:05 pm - 9:40 am
JAX
-
STL
15h 35m
1 stop
$109Frontier
dom, ago 30 - mar, set 8
Frontier Logo
10:35 am - 5:51 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$111Frontier
sab, set 12 - dom, set 13
Frontier Logo
6:17 pm - 6:10 pm
STL
-
JAX
22h 53m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$114Frontier
dom, ago 30 - mer, set 9
Frontier Logo
6:34 pm - 5:34 pm
STL
-
JAX
22h 00m
1 stop
Frontier Logo
6:29 pm - 8:57 am
JAX
-
STL
15h 28m
1 stop
$118Frontier
dom, ago 9 - gio, ago 13
Frontier Logo
10:35 am - 5:51 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$119Frontier
mer, set 23 - dom, set 27
Frontier Logo
10:35 am - 5:51 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$121Frontier
ven, ott 2 - lun, ott 5
Frontier Logo
10:35 am - 5:51 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$122Frontier
ven, set 11 - mer, set 23
Frontier Logo
6:17 pm - 6:10 pm
STL
-
JAX
22h 53m
1 stop
Frontier Logo
7:05 pm - 5:22 pm
JAX
-
STL
23h 17m
1 stop
$123Frontier
gio, ago 20 - gio, ago 27
Frontier Logo
10:35 am - 5:51 pm
STL
-
JAX
6h 16m
1 stop
Frontier Logo
6:46 pm - 9:40 am
JAX
-
STL
15h 54m
1 stop
$136Frontier
gio, nov 5 - dom, nov 8

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Frontier flights from St. Louis to Jacksonville

Our best Frontier deals on St. Louis to Jacksonville flight tickets
Frontier
Sep 19
STL10:35 amLambert-St Louis
6h 16m
1 stop
JAX5:51 pmJacksonville
Sep 26
JAX6:46 pmJacksonville
15h 54m
1 stop
STL9:40 amLambert-St Louis
$106
Frontier
Aug 30
STL6:17 pmLambert-St Louis
22h 53m
1 stop
JAX6:10 pmJacksonville
Sep 8
JAX7:05 pmJacksonville
15h 35m
1 stop
STL9:40 amLambert-St Louis
$109
Frontier
Sep 12
STL10:35 amLambert-St Louis
6h 16m
1 stop
JAX5:51 pmJacksonville
Sep 13
JAX6:46 pmJacksonville
15h 54m
1 stop
STL9:40 amLambert-St Louis
$111

Southwest flights from St. Louis to Jacksonville

Our best Southwest deals on St. Louis to Jacksonville flight tickets
Southwest
Aug 27
STL2:05 pmLambert-St Louis
2h 00m
JAX5:05 pmJacksonville
Aug 31
JAX2:00 pmJacksonville
2h 10m
STL3:10 pmLambert-St Louis
$237
Southwest
Aug 17
STL2:05 pmLambert-St Louis
2h 00m
JAX5:05 pmJacksonville
Aug 20
JAX7:50 amJacksonville
4h 45m
1 stop
STL11:35 amLambert-St Louis
$243
Southwest
Aug 13
STL6:05 amLambert-St Louis
6h 20m
1 stop
JAX1:25 pmJacksonville
Aug 17
JAX2:00 pmJacksonville
2h 10m
STL3:10 pmLambert-St Louis
$247

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 luglio 23, 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
Quickest round-trip

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

sab 9/19

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

sab 9/26

6:46 pm-9:40 am

1 stop15h 54m

$106

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

dom 8/30

6:17 pm-6:10 pm

1 stop22h 53m

Jacksonville

mar 9/8

7:05 pm-9:40 am

1 stop15h 35m

$109

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

sab 9/12

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

dom 9/13

6:46 pm-9:40 am

1 stop15h 54m

$111

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

dom 8/30

6:17 pm-6:10 pm

1 stop22h 53m

Jacksonville

mer 9/9

6:46 pm-9:40 am

1 stop15h 54m

$114

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

dom 8/9

6:34 pm-5:34 pm

1 stop22h 00m

Jacksonville

gio 8/13

6:29 pm-8:57 am

1 stop15h 28m

$118

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

mer 9/23

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

dom 9/27

6:46 pm-9:40 am

1 stop15h 54m

$119

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

ven 10/2

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

lun 10/5

6:46 pm-9:40 am

1 stop15h 54m

$121

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

ven 9/11

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

mer 9/23

6:46 pm-9:40 am

1 stop15h 54m

$122

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

gio 8/20

6:17 pm-6:10 pm

1 stop22h 53m

Jacksonville

gio 8/27

7:05 pm-5:22 pm

1 stop23h 17m

$123

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

gio 11/5

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

dom 11/8

6:46 pm-9:40 am

1 stop15h 54m

$136

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?

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 August is also very affordable. Most momondo users find prices during this month for around $292.

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 $298. 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 $422.

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 $284 when looking at flights departing in the evening. Flights to Jacksonville are more costly in the afternoon, with an average ticket price of $357. 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 $347 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 July 2026, prices for St. Louis to Jacksonville flights are approximately 7% more expensive 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

$149

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 $149. The best round-trip flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $292.
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
8,479 reviews
Search Delta flights
SouthwestPriceFrom $217Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
JetBluePriceFrom $251Free CancellationRating
7.1
3,020 reviews
Search JetBlue flights
American AirlinesPriceFrom $267Free CancellationRating
7.1
11,831 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 $217. Generally, Southwest has 5 flights on this route every week with an average price of $339. 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

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