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Cheap flights from St. Louis to Jacksonville from $59

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 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Jacksonville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:33 pm - 5:35 pm
STL
-
JAX
22h 02m
1 stop
Frontier Logo
6:28 pm - 8:52 am
JAX
-
STL
15h 24m
1 stop
$121Frontier
Tue, Jun 2 - Fri, Jun 12
Frontier Logo
5:06 pm - 5:33 pm
STL
-
JAX
23h 27m
1 stop
Frontier Logo
6:28 pm - 8:57 am
JAX
-
STL
15h 29m
1 stop
$123Frontier
Wed, Jul 1 - Sun, Jul 5
Frontier Logo
5:27 pm - 5:35 pm
STL
-
JAX
23h 08m
1 stop
Frontier Logo
6:28 pm - 5:30 pm
JAX
-
STL
24h 02m
1 stop
$124Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
5:27 pm - 5:35 pm
STL
-
JAX
23h 08m
1 stop
Frontier Logo
6:30 pm - 5:30 pm
JAX
-
STL
24h 00m
1 stop
$126Frontier
Mon, Jun 1 - Mon, Jun 8
Frontier Logo
6:33 pm - 5:33 pm
STL
-
JAX
22h 00m
1 stop
Frontier Logo
6:28 pm - 8:57 am
JAX
-
STL
15h 29m
1 stop
$146Frontier
Thu, Jul 30 - Tue, Aug 4
Frontier Logo
4:52 pm - 5:33 pm
STL
-
JAX
23h 41m
1 stop
Frontier Logo
6:28 pm - 8:57 am
JAX
-
STL
15h 29m
1 stop
$150Frontier
Wed, Jul 15 - Sun, Jul 19
Frontier Logo
5:27 pm - 5:35 pm
STL
-
JAX
23h 08m
1 stop
Frontier Logo
6:28 pm - 5:30 pm
JAX
-
STL
24h 02m
1 stop
$152Frontier
Wed, Jun 3 - Wed, Jun 17
Frontier Logo
4:52 pm - 5:33 pm
STL
-
JAX
23h 41m
1 stop
Frontier Logo
6:28 pm - 8:57 am
JAX
-
STL
15h 29m
1 stop
$153Frontier
Sat, Jul 11 - Fri, Jul 17
Frontier Logo
8:08 pm - 5:35 pm
STL
-
JAX
20h 27m
2 stops
Frontier Logo
6:28 pm - 5:30 pm
JAX
-
STL
24h 02m
1 stop
$171Frontier
Wed, Jun 3 - Wed, Jun 17
Multiple Airlines Logo
5:27 pm - 8:38 am
STL
-
JAX
14h 11m
2 stops
Multiple Airlines Logo
6:30 pm - 5:30 pm
JAX
-
STL
24h 00m
1 stop
$188Multiple Airlines
Mon, Jun 1 - Mon, Jun 8

Frontier flights from St. Louis to Jacksonville

Our best Frontier deals on St. Louis to Jacksonville flight tickets
Frontier
Jun 2
STL6:33 pmLambert-St Louis
22h 02m
1 stop
JAX5:35 pmJacksonville
Jun 12
JAX6:28 pmJacksonville
15h 24m
1 stop
STL8:52 amLambert-St Louis
$121
Frontier
Jul 1
STL5:06 pmLambert-St Louis
23h 27m
1 stop
JAX5:33 pmJacksonville
Jul 5
JAX6:28 pmJacksonville
15h 29m
1 stop
STL8:57 amLambert-St Louis
$123
Frontier
Jun 3
STL5:27 pmLambert-St Louis
23h 08m
1 stop
JAX5:35 pmJacksonville
Jun 10
JAX6:28 pmJacksonville
24h 02m
1 stop
STL5:30 pmLambert-St Louis
$124

Southwest flights from St. Louis to Jacksonville

Our best Southwest deals on St. Louis to Jacksonville flight tickets
Southwest
Jul 30
STL9:55 amLambert-St Louis
9h 15m
2 stops
JAX8:10 pmJacksonville
Aug 4
JAX6:45 amJacksonville
9h 05m
2 stops
STL2:50 pmLambert-St Louis
$265
Southwest
Jun 22
STL5:50 amLambert-St Louis
6h 45m
1 stop
JAX1:35 pmJacksonville
Jun 30
JAX8:25 amJacksonville
2h 10m
STL9:35 amLambert-St Louis
$271
Southwest
Jun 8
STL3:35 pmLambert-St Louis
2h 00m
JAX6:35 pmJacksonville
Jun 13
JAX7:15 pmJacksonville
5h 15m
1 stop
STL11:30 pmLambert-St Louis
$273

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 May 6, 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

Tue 6/2

6:33 pm-5:35 pm

1 stop22h 02m

Jacksonville

Fri 6/12

6:28 pm-8:52 am

1 stop15h 24m

$121

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 7/1

5:06 pm-5:33 pm

1 stop23h 27m

Jacksonville

Sun 7/5

6:28 pm-8:57 am

1 stop15h 29m

$123

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 6/3

5:27 pm-5:35 pm

1 stop23h 08m

Jacksonville

Wed 6/10

6:28 pm-5:30 pm

1 stop24h 02m

$124

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 6/1

5:27 pm-5:35 pm

1 stop23h 08m

Jacksonville

Mon 6/8

6:30 pm-5:30 pm

1 stop24h 00m

$126

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 7/30

6:33 pm-5:33 pm

1 stop22h 00m

Jacksonville

Tue 8/4

6:28 pm-8:57 am

1 stop15h 29m

$146

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 7/15

4:52 pm-5:33 pm

1 stop23h 41m

Jacksonville

Sun 7/19

6:28 pm-8:57 am

1 stop15h 29m

$150

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 6/3

5:27 pm-5:35 pm

1 stop23h 08m

Jacksonville

Wed 6/17

6:28 pm-5:30 pm

1 stop24h 02m

$152

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 7/11

4:52 pm-5:33 pm

1 stop23h 41m

Jacksonville

Fri 7/17

6:28 pm-8:57 am

1 stop15h 29m

$153

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 6/3

8:08 pm-5:35 pm

2 stops20h 27m

Jacksonville

Wed 6/17

6:28 pm-5:30 pm

1 stop24h 02m

$171

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 6/1

5:27 pm-8:38 am

2 stops14h 11m

Jacksonville

Mon 6/8

6:30 pm-5:30 pm

1 stop24h 00m

$188

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 September, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $275.

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 $275. 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 $357.

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 $272 when looking at flights departing in the evening. Flights to Jacksonville are more costly at noon, with an average ticket price of $357. Departure times at noon 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 $326 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 $272 on momondo.

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

As of May 2026, prices for St. Louis to Jacksonville flights are approximately 21% 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

$178

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 $178. The best round-trip flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $318.
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 $176Free CancellationRating
7.9
8,458 reviews
Search Delta flights
American AirlinesPriceFrom $186Free CancellationRating
7.1
11,669 reviews
Search American Airlines flights
SouthwestPriceFrom $214Free CancellationRating
7.9
4,305 reviews
Search Southwest flights
JetBluePriceFrom $251Free CancellationRating
7.1
2,979 reviews
Search JetBlue flights

  • Southwest Flights From St. Louis to Jacksonville

    The lowest priced Southwest flight from St. Louis to Jacksonville from the last 72 hours was $214. Generally, Southwest has 5 flights on this route every week with an average price of $320. Southwest is rated 7.9/10 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
Ponte Vedra Beach
Waycross
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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