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

United Airlines, American Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Jacksonville

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 46% 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 has the shortest connection time from St. Louis to Jacksonville?

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

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.

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 travel time from St. Louis to Jacksonville?

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

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

6 flights are operational weekly from St. Louis to Jacksonville as of May 2026. The most popular departure day for this route is Sat, with 33% of flights per week taking off on this day.

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 May 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.

$59 Cheap Flights from St. Louis to Jacksonville in 2026

Q: 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 $684 to $316. The lowest price recently found on this route was $121.

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Find the cheapest flights from St. Louis to Jacksonville

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:31 pm - 5:33 pm

STL

JAX

22h 02m

1 stop

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$121Frontier

Thu, Jun 18 - Tue, Jun 23

6:33 pm - 5:35 pm

STL

JAX

22h 02m

1 stop

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$124Frontier

Tue, Jun 2 - Sun, Jun 14

5:27 pm - 5:35 pm

STL

JAX

23h 08m

1 stop

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$126Frontier

Sat, Jun 6 - Fri, Jun 12

6:33 pm - 5:37 pm

STL

JAX

22h 04m

1 stop

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$148Frontier

Tue, Aug 25 - Tue, Sep 1

5:06 pm - 5:33 pm

STL

JAX

23h 27m

1 stop

6:28 pm - 5:37 pm

JAX

STL

24h 09m

1 stop

$150Frontier

Mon, Jun 29 - Mon, Jul 6

6:33 pm - 5:37 pm

STL

JAX

22h 04m

1 stop

6:28 pm - 5:30 pm

JAX

STL

24h 02m

1 stop

$152Frontier

Tue, Aug 25 - Wed, Sep 2

5:33 pm - 5:37 pm

STL

JAX

23h 04m

1 stop

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$173Frontier

Mon, Aug 24 - Sun, Aug 30

6:33 pm - 8:56 pm

STL

JAX

25h 23m

2 stops

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$175Multiple Airlines

Sun, Jun 7 - Sun, Jun 14

5:33 pm - 8:38 am

STL

JAX

14h 05m

2 stops

6:28 pm - 8:52 am

JAX

STL

15h 24m

1 stop

$177Multiple Airlines

Mon, Aug 24 - Fri, Aug 28

6:33 pm - 9:59 am

STL

JAX

38h 26m

2 stops

6:28 pm - 8:47 am

JAX

STL

15h 19m

1 stop

$182Multiple Airlines

Tue, Jun 2 - Tue, Jun 9

United Airlines flights from St. Louis to Jacksonville

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

United Airlines

Jun 9

STL1:13 pmLambert-St Louis

7h 46m

1 stop

JAX9:59 pmJacksonville

Jun 10

JAX7:20 amJacksonville

5h 51m

1 stop

STL12:11 pmLambert-St Louis

$335

United Airlines

Jun 9

STL6:00 amLambert-St Louis

8h 42m

1 stop

JAX3:42 pmJacksonville

Jun 10

JAX6:24 amJacksonville

10h 22m

2 stops

STL3:46 pmLambert-St Louis

$340

United Airlines

Jun 8

STL1:13 pmLambert-St Louis

7h 46m

1 stop

JAX9:59 pmJacksonville

Jun 9

JAX7:20 amJacksonville

5h 51m

1 stop

STL12:11 pmLambert-St Louis

$345

Southwest flights from St. Louis to Jacksonville

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

Southwest

Jun 24

STL5:40 amLambert-St Louis

7h 35m

2 stops

JAX2:15 pmJacksonville

Jul 1

JAX1:55 pmJacksonville

7h 30m

2 stops

STL8:25 pmLambert-St Louis

$265

Southwest

Jun 24

STL10:15 amLambert-St Louis

2h 00m

JAX1:15 pmJacksonville

Jul 1

JAX7:25 amJacksonville

6h 10m

1 stop

STL12:35 pmLambert-St Louis

$271

Southwest

Jun 6

STL6:45 pmLambert-St Louis

2h 00m

JAX9:45 pmJacksonville

Jun 13

JAX7:15 pmJacksonville

5h 15m

1 stop

STL11:30 pmLambert-St Louis

$273

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 6/18

6:31 pm-5:33 pm

1 stop22h 02m

Jacksonville

Tue 6/23

6:28 pm-8:52 am

1 stop15h 24m

$121

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 6/2

6:33 pm-5:35 pm

1 stop22h 02m

Jacksonville

Sun 6/14

6:28 pm-8:52 am

1 stop15h 24m

$124

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 6/6

5:27 pm-5:35 pm

1 stop23h 08m

Jacksonville

Fri 6/12

6:28 pm-8:52 am

1 stop15h 24m

$126

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 8/25

6:33 pm-5:37 pm

1 stop22h 04m

Jacksonville

Tue 9/1

6:28 pm-8:52 am

1 stop15h 24m

$148

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 6/29

5:06 pm-5:33 pm

1 stop23h 27m

Jacksonville

Mon 7/6

6:28 pm-5:37 pm

1 stop24h 09m

$150

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 8/25

6:33 pm-5:37 pm

1 stop22h 04m

Jacksonville

Wed 9/2

6:28 pm-5:30 pm

1 stop24h 02m

$152

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 8/24

5:33 pm-5:37 pm

1 stop23h 04m

Jacksonville

Sun 8/30

6:28 pm-8:52 am

1 stop15h 24m

$173

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sun 6/7

6:33 pm-8:56 pm

2 stops25h 23m

Jacksonville

Sun 6/14

6:28 pm-8:52 am

1 stop15h 24m

$175

Quickest round-trip

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 8/24

5:33 pm-8:38 am

2 stops14h 05m

Jacksonville

Fri 8/28

6:28 pm-8:52 am

1 stop15h 24m

$177

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 6/2

6:33 pm-9:59 am

2 stops38h 26m

Jacksonville

Tue 6/9

6:28 pm-8:47 am

1 stop15h 19m

$182

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

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Other information

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 $377.

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 $275 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 $327 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 $265 on momondo.

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 May 2026, prices for St. Louis to Jacksonville flights are approximately 19% 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	$131
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 $131. The best round-trip flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $324.

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 May 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 737-800 Passenger/BBJ2 (winglets), representing 55.71% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 28.57%, Boeing 737 at 4.29%, and Boeing 737-800 at 2.86%.
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 (19%), American Airlines (16%), and JetBlue (3%).

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 $176	Free Cancellation	Rating 7.9 8,453 reviews	Search Delta flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.1 11,665 reviews	Search American Airlines flights
Southwest	PriceFrom $214	Free Cancellation	Rating 8.0 4,295 reviews	Search Southwest flights
JetBlue	PriceFrom $251	Free Cancellation	Rating 7.1 2,973 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 6 flights on this route every week with an average price of $323. Southwest is rated 7.9/10 by our users.

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.

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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 8/4. 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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United Airlines flights from St. Louis to Jacksonville

Our best United 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?

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

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

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

Southwest Flights From St. Louis to Jacksonville

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.

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