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Cheap flights from St. Louis to Jacksonville from $80

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 12/15. 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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Cheap round-trip flights

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Delta Logo
7:10 am - 12:41 pmSTL-JAX
4h 31m1 stop
Delta Logo
5:30 am - 11:04 amJAX-STL
6h 34m1 stop
$233Delta
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Sat, Jan 31 - Thu, Feb 5
Multiple Airlines Logo
10:42 am - 5:40 pmSTL-JAX
5h 58m1 stop
Multiple Airlines Logo
6:36 pm - 10:33 pmJAX-STL
28h 57m2 stops
$235Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
10:42 am - 5:40 pmSTL-JAX
5h 58m1 stop
Frontier Logo
6:36 pm - 10:33 pmJAX-STL
28h 57m2 stops
$237Frontier
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Fri, Dec 12 - Mon, Dec 15
United Airlines Logo
8:21 am - 8:14 pmSTL-JAX
10h 53m2 stops
United Airlines Logo
4:28 pm - 10:59 pmJAX-STL
7h 31m1 stop
$238United Airlines
Find Deal
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
8:13 am - 3:41 pmSTL-JAX
6h 28m1 stop
American Airlines Logo
12:24 pm - 5:23 pmJAX-STL
5h 59m1 stop
$255American Airlines
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Sat, Jan 31 - Thu, Feb 5
Southwest Logo
8:15 am - 11:15 amSTL-JAX
2h 00mnonstop
Southwest Logo
6:15 pm - 7:35 pmJAX-STL
2h 20mnonstop
$259Southwest
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Wed, Dec 17 - Wed, Dec 31
United Airlines Logo
9:55 am - 8:14 pmSTL-JAX
9h 19m2 stops
United Airlines Logo
8:00 am - 12:25 pmJAX-STL
5h 25m1 stop
$260United Airlines
Find Deal
Tue, Feb 17 - Sat, Feb 28
United Airlines Logo
8:21 am - 6:01 pmSTL-JAX
8h 40m2 stops
United Airlines Logo
12:45 pm - 9:00 pmJAX-STL
9h 15m2 stops
$266United Airlines
Find Deal
Sat, Feb 28 - Wed, Mar 4
Southwest Logo
10:15 am - 5:00 pmSTL-JAX
5h 45m1 stop
Southwest Logo
6:15 pm - 7:35 pmJAX-STL
2h 20mnonstop
$269Southwest
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Wed, Dec 17 - Wed, Dec 31
American Airlines Logo
9:25 am - 3:51 pmSTL-JAX
5h 26m1 stop
American Airlines Logo
6:00 am - 9:40 amJAX-STL
4h 40m1 stop
$275American Airlines
Find Deal
Wed, Jan 7 - Sun, Jan 11

American Airlines flights from St. Louis to Jacksonville

Our best American Airlines deals on St. Louis to Jacksonville flight tickets
American Airlines
Jan 31
STL8:13 amLambert-St Louis
6h 28m
1 stop
JAX3:41 pmJacksonville
Feb 5
JAX12:24 pmJacksonville
5h 59m
1 stop
STL5:23 pmLambert-St Louis
$255
Find similar
American Airlines
Jan 7
STL9:25 amLambert-St Louis
5h 26m
1 stop
JAX3:51 pmJacksonville
Jan 11
JAX6:00 amJacksonville
4h 40m
1 stop
STL9:40 amLambert-St Louis
$275
Find similar
American Airlines
Jan 7
STL6:00 amLambert-St Louis
6h 57m
1 stop
JAX1:57 pmJacksonville
Jan 11
JAX2:42 pmJacksonville
4h 52m
1 stop
STL6:34 pmLambert-St Louis
$286
Find similar

Southwest flights from St. Louis to Jacksonville

Our best Southwest deals on St. Louis to Jacksonville flight tickets
Southwest
Dec 17
STL8:15 amLambert-St Louis
2h 00m
JAX11:15 amJacksonville
Dec 31
JAX6:15 pmJacksonville
2h 20m
STL7:35 pmLambert-St Louis
$259
Find similar
Southwest
Dec 17
STL10:15 amLambert-St Louis
5h 45m
1 stop
JAX5:00 pmJacksonville
Dec 31
JAX6:15 pmJacksonville
2h 20m
STL7:35 pmLambert-St Louis
$269
Find similar
Southwest
Dec 17
STL10:15 amLambert-St Louis
9h 00m
2 stops
JAX8:15 pmJacksonville
Dec 31
JAX5:50 pmJacksonville
5h 10m
1 stop
STL10:00 pmLambert-St Louis
$284
Find similar

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 November 21, 2025.
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

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 1/31

7:10 am-12:41 pm

1 stop4h 31m

Jacksonville

Thu 2/5

5:30 am-11:04 am

1 stop6h 34m

$233

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 12/5

10:42 am-5:40 pm

1 stop5h 58m

Jacksonville

Mon 12/8

6:36 pm-10:33 pm

2 stops28h 57m

$235

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 12/12

10:42 am-5:40 pm

1 stop5h 58m

Jacksonville

Mon 12/15

6:36 pm-10:33 pm

2 stops28h 57m

$237

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 2/28

8:21 am-8:14 pm

2 stops10h 53m

Jacksonville

Wed 3/4

4:28 pm-10:59 pm

1 stop7h 31m

$238

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 1/31

8:13 am-3:41 pm

1 stop6h 28m

Jacksonville

Thu 2/5

12:24 pm-5:23 pm

1 stop5h 59m

$255

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 12/17

8:15 am-11:15 am

Nonstop2h 00m

Jacksonville

Wed 12/31

6:15 pm-7:35 pm

Nonstop2h 20m

$259

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 2/17

9:55 am-8:14 pm

2 stops9h 19m

Jacksonville

Sat 2/28

8:00 am-12:25 pm

1 stop5h 25m

$260

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 2/28

8:21 am-6:01 pm

2 stops8h 40m

Jacksonville

Wed 3/4

12:45 pm-9:00 pm

2 stops9h 15m

$266

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 12/17

10:15 am-5:00 pm

1 stop5h 45m

Jacksonville

Wed 12/31

6:15 pm-7:35 pm

Nonstop2h 20m

$269

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 1/7

9:25 am-3:51 pm

1 stop5h 26m

Jacksonville

Sun 1/11

6:00 am-9:40 am

1 stop4h 40m

$275

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 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 $277.

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, Tuesday 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $267 when looking at flights departing in the afternoon. Flights to Jacksonville are more costly at noon, with an average ticket price of $374. 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 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 $313 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 $256 on momondo.

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

There is only 1 cabin class available to choose from on Lambert-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?

You could potentially save up to 30% on your flight if you consider stops on a St. Louis to Jacksonville flight.

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

As of November 2025, prices for St. Louis to Jacksonville flights are approximately 28% 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

$264

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Jacksonville

1 airport
The best flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $264
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 near Jacksonville: Jacksonville (JAX)
Search flight deals

  • 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 $205Free CancellationRating
7.9
8,002 reviews
Search Delta flights
American AirlinesPriceFrom $211Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
SouthwestPriceFrom $214Free CancellationRating
8.0
4,251 reviews
Search Southwest 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 6 flights on this route every week with an average price of $317. 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
Ponte Vedra Beach
Kingsland
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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