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

Frontier is the most popular carrier operating from Lambert-St Louis to Jacksonville

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

4 flights are operational weekly from St. Louis to Jacksonville as of February 2026. The most popular departure day for this route is Thu, with 25% of flights per week taking off on this day.

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 4 different airlines that fly to Jacksonville on a routine basis, so you have a few additional options to choose from.

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 3 as of February 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.

$73 Cheap Flights from St. Louis to Jacksonville in 2026

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11:32 am - 7:33 pm

STL

JAX

7h 01m

1 stop

8:18 pm - 10:31 am

JAX

STL

15h 13m

1 stop

$155Frontier

Wed, Mar 18 - Wed, Mar 25

8:23 pm - 5:30 pm

STL

JAX

20h 07m

1 stop

6:25 pm - 6:50 am

JAX

STL

13h 25m

1 stop

$190Frontier

Wed, Apr 29 - Sun, May 3

4:51 pm - 3:34 pm

STL

JAX

21h 43m

2 stops

8:18 pm - 10:31 am

JAX

STL

15h 13m

1 stop

$210Frontier

Wed, Mar 18 - Wed, Mar 25

11:32 am - 7:33 pm

STL

JAX

7h 01m

1 stop

12:31 pm - 1:34 pm

JAX

STL

26h 03m

1 stop

$211Frontier

Wed, Mar 18 - Sun, Mar 22

8:23 pm - 5:30 pm

STL

JAX

20h 07m

1 stop

9:49 pm - 6:50 am

JAX

STL

34h 01m

2 stops

$214Frontier

Wed, Apr 29 - Mon, May 4

8:23 pm - 5:30 pm

STL

JAX

20h 07m

1 stop

6:08 pm - 7:12 pm

JAX

STL

26h 04m

2 stops

$216Frontier

Wed, Apr 29 - Thu, May 7

8:23 pm - 5:30 pm

STL

JAX

20h 07m

1 stop

8:17 pm - 6:50 am

JAX

STL

11h 33m

1 stop

$217Frontier

Sat, May 2 - Fri, May 8

11:25 am - 5:30 pm

STL

JAX

5h 05m

1 stop

8:17 pm - 6:50 am

JAX

STL

11h 33m

1 stop

$218Frontier

Thu, Apr 30 - Fri, May 8

11:25 am - 5:30 pm

STL

JAX

5h 05m

1 stop

8:17 pm - 7:12 pm

JAX

STL

23h 55m

2 stops

$221Frontier

Thu, Apr 30 - Fri, May 8

11:32 am - 7:33 pm

STL

JAX

7h 01m

1 stop

4:29 pm - 1:34 pm

JAX

STL

22h 05m

1 stop

$222Frontier

Wed, Mar 11 - Sun, Mar 15

Southwest flights from St. Louis to Jacksonville

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

Southwest

Mar 24

STL7:15 pmLambert-St Louis

2h 00m

JAX10:15 pmJacksonville

Mar 26

JAX6:15 amJacksonville

2h 20m

STL7:35 amLambert-St Louis

$284

Southwest

Mar 24

STL7:15 pmLambert-St Louis

2h 00m

JAX10:15 pmJacksonville

Mar 31

JAX2:20 pmJacksonville

6h 35m

1 stop

STL7:55 pmLambert-St Louis

$287

Southwest

Mar 23

STL7:45 pmLambert-St Louis

2h 00m

JAX10:45 pmJacksonville

Mar 26

JAX6:15 amJacksonville

2h 20m

STL7:35 amLambert-St Louis

$291

United Airlines flights from St. Louis to Jacksonville

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

United Airlines

Mar 24

STL10:00 amLambert-St Louis

9h 04m

2 stops

JAX8:04 pmJacksonville

Mar 31

JAX5:27 pmJacksonville

6h 01m

1 stop

STL10:28 pmLambert-St Louis

$302

United Airlines

Mar 24

STL6:25 amLambert-St Louis

8h 51m

2 stops

JAX4:16 pmJacksonville

Mar 26

JAX8:00 amJacksonville

7h 42m

1 stop

STL2:42 pmLambert-St Louis

$303

United Airlines

Feb 23

STL3:15 pmLambert-St Louis

5h 09m

1 stop

JAX9:24 pmJacksonville

Feb 26

JAX6:50 pmJacksonville

6h 09m

1 stop

STL11:59 pmLambert-St Louis

$351

Fly from

Fly to

Route

Depart

Return

Price

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 3/18

11:32 am-7:33 pm

1 stop7h 01m

Jacksonville

Wed 3/25

8:18 pm-10:31 am

1 stop15h 13m

$155

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 4/29

8:23 pm-5:30 pm

1 stop20h 07m

Jacksonville

Sun 5/3

6:25 pm-6:50 am

1 stop13h 25m

$190

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 3/18

4:51 pm-3:34 pm

2 stops21h 43m

Jacksonville

Wed 3/25

8:18 pm-10:31 am

1 stop15h 13m

$210

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 3/18

11:32 am-7:33 pm

1 stop7h 01m

Jacksonville

Sun 3/22

12:31 pm-1:34 pm

1 stop26h 03m

$211

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 4/29

8:23 pm-5:30 pm

1 stop20h 07m

Jacksonville

Mon 5/4

9:49 pm-6:50 am

2 stops34h 01m

$214

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 4/29

8:23 pm-5:30 pm

1 stop20h 07m

Jacksonville

Thu 5/7

6:08 pm-7:12 pm

2 stops26h 04m

$216

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 5/2

8:23 pm-5:30 pm

1 stop20h 07m

Jacksonville

Fri 5/8

8:17 pm-6:50 am

1 stop11h 33m

$217

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 4/30

11:25 am-5:30 pm

1 stop5h 05m

Jacksonville

Fri 5/8

8:17 pm-6:50 am

1 stop11h 33m

$218

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 4/30

11:25 am-5:30 pm

1 stop5h 05m

Jacksonville

Fri 5/8

8:17 pm-7:12 pm

2 stops23h 55m

$221

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 3/11

11:32 am-7:33 pm

1 stop7h 01m

Jacksonville

Sun 3/15

4:29 pm-1:34 pm

1 stop22h 05m

$222

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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

Other information

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 $276.

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 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 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 $316 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 $218 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 41% 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 February 2026, prices for St. Louis to Jacksonville flights are approximately 40% 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	$168
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 $168. The best round-trip flight deal from St. Louis to Jacksonville found on momondo in the last 72 hours is $291.

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

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 3 as of February 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 42.86% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 36.73%, Airbus A220-300 at 4.08%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 4.08%.
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 (64% of total bookings). The next most popular airlines are American Airlines (18%) and Delta (18%).

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 8,241 reviews	Search Delta flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.2 11,338 reviews	Search American Airlines flights
Southwest	PriceFrom $214	Free Cancellation	Rating 8.0 4,299 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 4 flights on this route every week with an average price of $313. Southwest is rated 8.0/10 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.

An easier way to manage your Jacksonville trip

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Cheap flights from St. Louis to Jacksonville from $73

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 3/18. 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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Our best Southwest 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 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 to Jacksonville?

What cabin class options are available on Lambert-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?

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

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?

Why should I use momondo to find a flight deal from St. Louis to Jacksonville?

Can I find flights from St. Louis to Jacksonville with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Jacksonville?

I’m not ready to book a flight from St. Louis to Jacksonville right now. Can momondo alert me if prices change?

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.

Find better results for your trip to the United States

Airports servicing Florida

Fly your favorite airline to Jacksonville

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Jacksonville. Availability may vary depending on flight origin and airline.

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