What airlines fly to Jacksonville?

Southwest, Delta and American Airlines are the top three most popular airlines that fly to Jacksonville from St. Louis according to our data. Southwest is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Jacksonville. Keep in mind that there are 5 different airlines that fly to Jacksonville on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from St. Louis to Jacksonville?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $374.

Which layover airport has the shortest connection time from St. Louis to Jacksonville?

Charlotte (CLT) has the shortest average layover time for this route: 1h 08m.

Which layover airport has the shortest travel time from St. Louis to Jacksonville?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 4h 45m.

What is the cheapest airline that flies from Lambert-St Louis to Jacksonville?

Frontier, Southwest, and Delta are the most popular carriers operating from Lambert-St Louis to Jacksonville

How many flights depart from St. Louis to Jacksonville on average per week?

5 flights are operational weekly from St. Louis to Jacksonville as of July 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

Which airport is the most popular layover for flights between St. Louis and Jacksonville?

Atlanta (ATL) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

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?

The number of operators available for flights from Lambert-St Louis Airport to Jacksonville Airport is 4 as of July 2026.

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.

$51 Cheap Flights from St. Louis to Jacksonville in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Jacksonville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:35 am - 5:51 pm

STL

JAX

6h 16m

1 stop

6:46 pm - 9:40 am

JAX

STL

15h 54m

1 stop

$109Frontier

Thu, Oct 29 - Sun, Nov 1

6:17 pm - 6:10 pm

STL

JAX

22h 53m

1 stop

7:05 pm - 5:22 pm

JAX

STL

23h 17m

1 stop

$118Frontier

Sun, Aug 23 - Sun, Aug 30

2:29 pm - 7:01 pm

STL

JAX

27h 32m

1 stop

7:46 pm - 1:10 pm

JAX

STL

18h 24m

1 stop

$118Frontier

Wed, Sep 23 - Sun, Sep 27

2:05 pm - 5:05 pm

STL

JAX

2h 00mnonstop

2:00 pm - 3:10 pm

JAX

STL

2h 10mnonstop

$237Southwest

Thu, Sep 17 - Mon, Sep 21

2:05 pm - 5:05 pm

STL

JAX

2h 00mnonstop

2:00 pm - 3:10 pm

JAX

STL

2h 10mnonstop

$237Southwest

Thu, Aug 27 - Thu, Sep 3

7:55 pm - 10:50 pm

STL

JAX

1h 55mnonstop

7:20 am - 8:35 am

JAX

STL

2h 15mnonstop

$237Southwest

Mon, Nov 23 - Thu, Nov 26

7:18 pm - 11:55 pm

STL

JAX

3h 37m

1 stop

4:09 pm - 9:33 pm

JAX

STL

6h 24m

1 stop

$247Delta

Mon, Nov 23 - Tue, Dec 1

11:51 am - 6:53 pm

STL

JAX

6h 02m

1 stop

2:30 pm - 6:01 pm

JAX

STL

4h 31m

1 stop

$247Delta

Mon, Nov 23 - Tue, Dec 1

10:14 am - 6:54 pm

STL

JAX

7h 40m

1 stop

6:18 pm - 12:27 am

JAX

STL

7h 09m

1 stop

$247American Airlines

Sat, Sep 12 - Sat, Sep 19

11:35 am - 7:05 pm

STL

JAX

6h 30m

1 stop

6:00 am - 10:45 am

JAX

STL

5h 45m

1 stop

$257American Airlines

Sat, Sep 5 - Mon, Sep 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 29

STL10:35 amLambert-St Louis

6h 16m

1 stop

JAX5:51 pmJacksonville

Nov 1

JAX6:46 pmJacksonville

15h 54m

1 stop

STL9:40 amLambert-St Louis

$109

Frontier

Sep 23

STL2:29 pmLambert-St Louis

27h 32m

1 stop

JAX7:01 pmJacksonville

Sep 27

JAX6:46 pmJacksonville

19h 24m

1 stop

STL1:10 pmLambert-St Louis

$118

Frontier

Aug 27

STL6:17 pmLambert-St Louis

22h 53m

1 stop

JAX6:10 pmJacksonville

Sep 3

JAX7:05 pmJacksonville

23h 17m

1 stop

STL5:22 pmLambert-St Louis

$127

American Airlines flights from St. Louis to Jacksonville

Our best American Airlines deals on St. Louis to Jacksonville flight tickets

American Airlines

Aug 31

STL3:25 pmLambert-St Louis

4h 21m

1 stop

JAX8:46 pmJacksonville

Sep 11

JAX6:36 amJacksonville

7h 40m

1 stop

STL1:16 pmLambert-St Louis

$257

American Airlines

Nov 13

STL6:15 pmLambert-St Louis

5h 07m

1 stop

JAX12:22 amJacksonville

Nov 19

JAX6:30 amJacksonville

5h 21m

1 stop

STL10:51 amLambert-St Louis

$311

American Airlines

Nov 13

STL6:15 pmLambert-St Louis

5h 07m

1 stop

JAX12:22 amJacksonville

Nov 19

JAX6:30 amJacksonville

5h 21m

1 stop

STL10:51 amLambert-St Louis

$316

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 10/29

10:35 am-5:51 pm

1 stop6h 16m

Jacksonville

Sun 11/1

6:46 pm-9:40 am

1 stop15h 54m

$109

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sun 8/23

6:17 pm-6:10 pm

1 stop22h 53m

Jacksonville

Sun 8/30

7:05 pm-5:22 pm

1 stop23h 17m

$118

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 9/23

2:29 pm-7:01 pm

1 stop27h 32m

Jacksonville

Sun 9/27

7:46 pm-1:10 pm

1 stop18h 24m

$118

Quickest round-trip

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 9/17

2:05 pm-5:05 pm

Nonstop2h 00m

Jacksonville

Mon 9/21

2:00 pm-3:10 pm

Nonstop2h 10m

$237

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 8/27

2:05 pm-5:05 pm

Nonstop2h 00m

Jacksonville

Thu 9/3

2:00 pm-3:10 pm

Nonstop2h 10m

$237

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 11/23

7:55 pm-10:50 pm

Nonstop1h 55m

Jacksonville

Thu 11/26

7:20 am-8:35 am

Nonstop2h 15m

$237

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 11/23

7:18 pm-11:55 pm

1 stop3h 37m

Jacksonville

Tue 12/1

4:09 pm-9:33 pm

1 stop6h 24m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 11/23

11:51 am-6:53 pm

1 stop6h 02m

Jacksonville

Tue 12/1

2:30 pm-6:01 pm

1 stop4h 31m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 9/12

10:14 am-6:54 pm

1 stop7h 40m

Jacksonville

Sat 9/19

6:18 pm-12:27 am

1 stop7h 09m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 9/5

11:35 am-7:05 pm

1 stop6h 30m

Jacksonville

Mon 9/7

6:00 am-10:45 am

1 stop5h 45m

$257

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

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 $252 to $357.
The lowest price recently found on this route was $118.

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 $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 $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 $291 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 $346 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	$292
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 $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?
The number of operators available for flights from Lambert-St Louis Airport to Jacksonville Airport is 4 as of July 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Jacksonville is Boeing 737 MAX 8, representing 35.38% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 33.85%, Boeing 737 at 21.54%, and Airbus A318/A319/A320/A321 at 3.08%.
What is the most popular airline from St. Louis to Jacksonville?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Jacksonville is Southwest (61% of total bookings). The next most popular airlines are Delta (21%), American Airlines (13%), and JetBlue (4%).

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
Delta	PriceFrom $168	Free Cancellation	Rating 7.8 8,485 reviews	Search Delta flights
Southwest	PriceFrom $220	Free Cancellation	Rating 8.0 4,228 reviews	Search Southwest flights
JetBlue	PriceFrom $251	Free Cancellation	Rating 7.1 3,024 reviews	Search JetBlue flights
American Airlines	PriceFrom $267	Free Cancellation	Rating 7.1 11,840 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 $220. Generally, Southwest has 5 flights on this route every week with an average price of $342. Southwest is rated 8.0/10 by our users.

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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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Cheap flights from St. Louis to Jacksonville from $51

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 10/24. 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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Frontier flights from St. Louis to Jacksonville

Our best Frontier deals on St. Louis to Jacksonville flight tickets

American Airlines flights from St. Louis to Jacksonville

Our best American Airlines deals on St. Louis to Jacksonville flight tickets

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

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

What is the cheapest month to fly to Jacksonville?

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

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

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

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

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

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

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

What is the cheapest airline that flies from Lambert-St Louis to Jacksonville?

What airlines fly to Jacksonville?

Which airport is the most popular layover for flights between St. Louis and Jacksonville?

Which layover airport offers the lowest fares from St. Louis to Jacksonville?

Which layover airport has the shortest travel time from St. Louis to Jacksonville?

Which layover airport has the shortest connection time from St. Louis to Jacksonville?

How many flights depart from St. Louis to Jacksonville on average per week?

When to book flights from St. Louis to Jacksonville

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

Best Price Found

Fastest flight time

Direct flights

Airports in Jacksonville

Frequently asked questions about flying 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

Traveling to a place near Jacksonville?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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