What airlines fly to St. Louis?

Southwest, Delta and American Airlines are the top three most popular airlines that fly to St. Louis from Jacksonville according to our data. Southwest is the first choice among our users, with 48% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Jacksonville and St. Louis is 10 per week as of October 2025. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.

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

The number of flights available between Jacksonville and St. Louis is 1 per day as of October 2025. The most frequent departure time is 8:00PM, with 55% of daily flights leaving at noon.

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

Flights via Charlotte (CLT) offer the lowest average round-trip price of $264.

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

Charlotte (CLT) has the shortest average layover time for this route: 0h 42m.

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

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 3h 44m.

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

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

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

Charlotte (CLT) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Jacksonville Airport to Lambert-St Louis Airport?

Prices for flights from Jacksonville Airport to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights from Jacksonville Airport to Lambert-St Louis Airport?

There are 3 operators available for flights from Jacksonville Airport to Lambert-St Louis Airport as of October 2025.

How old do you have to be to fly from Jacksonville Airport to Lambert-St Louis Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Jacksonville Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$96 Cheap Flights from Jacksonville to St. Louis in 2025/26

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Cheap round-trip flights

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7:20 am - 8:40 amJAX-STL

2h 20mnonstop

8:15 am - 11:15 amSTL-JAX

2h 00mnonstop

$237Southwest

Find Deal

Thu, Dec 18 - Wed, Dec 24

8:05 am - 1:30 pmJAX-STL

6h 25m1 stop

6:10 pm - 9:05 pmSTL-JAX

1h 55mnonstop

$247Southwest

Find Deal

Thu, Nov 27 - Tue, Dec 2

4:57 pm - 10:22 pmJAX-STL

6h 25m1 stop

8:25 am - 3:01 pmSTL-JAX

5h 36m1 stop

$252United Airlines

Find Deal

Thu, Nov 6 - Mon, Nov 10

7:20 am - 8:40 amJAX-STL

2h 20mnonstop

7:50 am - 10:50 amSTL-JAX

2h 00mnonstop

$254Southwest

Find Deal

Thu, Nov 6 - Mon, Nov 10

4:57 pm - 10:22 pmJAX-STL

6h 25m1 stop

6:30 am - 3:01 pmSTL-JAX

7h 31m2 stops

$258United Airlines

Find Deal

Thu, Nov 6 - Mon, Nov 10

3:00 pm - 9:45 pmJAX-STL

7h 45m1 stop

6:05 am - 5:35 pmSTL-JAX

10h 30m1 stop

$262Southwest

Find Deal

Thu, Dec 18 - Wed, Dec 24

7:35 am - 12:35 pmJAX-STL

6h 00m1 stop

1:30 pm - 7:06 pmSTL-JAX

4h 36m1 stop

$269Delta

Find Deal

Thu, Nov 6 - Sat, Nov 8

5:00 am - 9:49 amJAX-STL

5h 49m1 stop

7:02 pm - 12:10 amSTL-JAX

4h 08m1 stop

$317Delta

Find Deal

Fri, Nov 28 - Mon, Dec 1

7:00 am - 11:51 amJAX-STL

5h 51m1 stop

7:16 am - 6:37 pmSTL-JAX

10h 21m1 stop

$346American Airlines

Find Deal

Tue, Oct 28 - Fri, Oct 31

3:43 pm - 10:35 pmJAX-STL

7h 52m1 stop

5:00 am - 11:59 amSTL-JAX

5h 59m1 stop

$384American Airlines

Find Deal

Wed, Dec 24 - Sun, Dec 28

Southwest flights from Jacksonville to St. Louis

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

Southwest

Dec 18

JAX7:20 amJacksonville

2h 20m

STL8:40 amLambert-St Louis

Dec 24

STL8:15 amLambert-St Louis

2h 00m

JAX11:15 amJacksonville

$237

Find similar

Southwest

Nov 27

JAX8:05 amJacksonville

6h 25m

1 stop

STL1:30 pmLambert-St Louis

Dec 2

STL6:10 pmLambert-St Louis

1h 55m

JAX9:05 pmJacksonville

$247

Find similar

Southwest

Nov 6

JAX7:20 amJacksonville

2h 20m

STL8:40 amLambert-St Louis

Nov 10

STL7:50 amLambert-St Louis

2h 00m

JAX10:50 amJacksonville

$254

Find similar

American Airlines flights from Jacksonville to St. Louis

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

American Airlines

Oct 30

JAX12:31 pmJacksonville

6h 51m

1 stop

STL6:22 pmLambert-St Louis

Oct 31

STL7:16 amLambert-St Louis

10h 21m

1 stop

JAX6:37 pmJacksonville

$346

Find similar

American Airlines

Dec 24

JAX3:43 pmJacksonville

7h 52m

1 stop

STL10:35 pmLambert-St Louis

Dec 28

STL5:00 amLambert-St Louis

5h 59m

1 stop

JAX11:59 amJacksonville

$384

Find similar

American Airlines

Dec 24

JAX6:00 amJacksonville

9h 09m

2 stops

STL2:09 pmLambert-St Louis

Dec 28

STL5:00 amLambert-St Louis

5h 59m

1 stop

JAX11:59 amJacksonville

$389

Find similar

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 12/18

7:20 am-8:40 am

Nonstop2h 20m

Lambert-St Louis

Wed 12/24

8:15 am-11:15 am

Nonstop2h 00m

$237

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 11/27

8:05 am-1:30 pm

1 stop6h 25m

Lambert-St Louis

Tue 12/2

6:10 pm-9:05 pm

Nonstop1h 55m

$247

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 11/6

4:57 pm-10:22 pm

1 stop6h 25m

Lambert-St Louis

Mon 11/10

8:25 am-3:01 pm

1 stop5h 36m

$252

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 11/6

7:20 am-8:40 am

Nonstop2h 20m

Lambert-St Louis

Mon 11/10

7:50 am-10:50 am

Nonstop2h 00m

$254

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 11/6

4:57 pm-10:22 pm

1 stop6h 25m

Lambert-St Louis

Mon 11/10

6:30 am-3:01 pm

2 stops7h 31m

$258

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 12/18

3:00 pm-9:45 pm

1 stop7h 45m

Lambert-St Louis

Wed 12/24

6:05 am-5:35 pm

1 stop10h 30m

$262

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 11/6

7:35 am-12:35 pm

1 stop6h 00m

Lambert-St Louis

Sat 11/8

1:30 pm-7:06 pm

1 stop4h 36m

$269

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Fri 11/28

5:00 am-9:49 am

1 stop5h 49m

Lambert-St Louis

Mon 12/1

7:02 pm-12:10 am

1 stop4h 08m

$317

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Tue 10/28

7:00 am-11:51 am

1 stop5h 51m

Lambert-St Louis

Fri 10/31

7:16 am-6:37 pm

1 stop10h 21m

$346

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 12/24

3:43 pm-10:35 pm

1 stop7h 52m

Lambert-St Louis

Sun 12/28

5:00 am-11:59 am

1 stop5h 59m

$384

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 Jacksonville to St. Louis

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 cheapest month to fly to St. Louis?

In general, July is the cheapest month to fly from Jacksonville to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $248. The month of August is another great option to travel to St. Louis, with average flight prices from Jacksonville averaging around $254.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $428. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Jacksonville in the evening is the least expensive time of day to depart. momondo users have found prices as low as $361 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $672 per ticket.

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

Fly from Jacksonville to Lambert-St Louis for the best Jacksonville - Lambert-St Louis flight prices

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

You are more likely to see cheaper flights to St. Louis from Jacksonville when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $322 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Jacksonville for as low as $218 on momondo.

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

There is only 1 cabin class available to choose from on Jacksonville to Lambert-St Louis 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 Jacksonville to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Jacksonville to St. Louis.

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

As of October 2025, prices for Jacksonville to St. Louis flights are approximately 4% cheaper when compared to flights at the same time last year.

When to book flights from Jacksonville to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Jacksonville to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

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

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

Best Price Found	$196
Fastest flight time	2h 10m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Jacksonville in the past 72 hours is $196. The best round-trip flight deal from Jacksonville to St. Louis found on momondo in the last 72 hours is $326.

The fastest flight from Jacksonville to St. Louis takes 2h 10m

Direct flights go from Jacksonville to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

How far is Jacksonville to Lambert-St Louis by plane?
A flight from Jacksonville to Lambert-St Louis will travel around 750.5 mi. A reasonable flight in good conditions will take 2h 10m.
When did momondo last update prices for flights from Jacksonville Airport to Lambert-St Louis Airport?
Prices for flights from Jacksonville Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Jacksonville Airport to Lambert-St Louis Airport?
There are 3 operators available for flights from Jacksonville Airport to Lambert-St Louis Airport as of October 2025.
How old do you have to be to fly from Jacksonville Airport to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Jacksonville Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Jacksonville to St. Louis?
Based on momondo bookings for flights between Jacksonville and St. Louis, the leading plane model is Boeing 737-700 Passenger/BBJ1 (winglets), making up 29.75% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 29.11%, Boeing 737 MAX 8 with 11.39%, and Airbus A320-100/200 with 4.43%.
What is the most popular airline from Jacksonville to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Jacksonville to St. Louis is Southwest (60% of total bookings). The next most popular airlines are Delta (23%) and American Airlines (17%).

Best airlines flying from Jacksonville to St. Louis

Compare and see reviews for airlines that fly from Jacksonville to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 7,984 reviews	Search Delta flights
Southwest	PriceFrom $215	Free Cancellation	Rating 8.0 4,241 reviews	Search Southwest flights
American Airlines	PriceFrom $218	Free Cancellation	Rating 7.2 11,043 reviews	Search American Airlines flights

Southwest Flights From Jacksonville to St. Louis
Southwest flies from Jacksonville to St. Louis around 10 times per week, with 4,241 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Jacksonville to St. Louis in the last 72 hours was $215 (round-trip), much lower than the average airfare cost of $319 for Southwest flights on this route.

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Wentzville

Collinsville

Fenton

St. Peters

Alton

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Jacksonville to St. Louis. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to St. Louis from Jacksonville which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Jacksonville to St. Louis 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 Jacksonville to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Jacksonville to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Jacksonville to St. Louis from $96

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Jacksonville to St. Louis departing on 10/31. 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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Southwest flights from Jacksonville to St. Louis

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

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

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 St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

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

Fly from Jacksonville to Lambert-St Louis for the best Jacksonville - Lambert-St Louis flight prices

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

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

There is only 1 cabin class available to choose from on Jacksonville to Lambert-St Louis 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 Jacksonville to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Jacksonville to St. Louis.

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

As of October 2025, prices for Jacksonville to St. Louis flights are approximately 4% cheaper when compared to flights at the same time last year.

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

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

What airlines fly to St. Louis?

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

Charlotte (CLT) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Charlotte (CLT) offer the lowest average round-trip price of $264.

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

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 3h 44m.

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

Charlotte (CLT) has the shortest average layover time for this route: 0h 42m.

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

The number of flights available between Jacksonville and St. Louis is 1 per day as of October 2025. The most frequent departure time is 8:00PM, with 55% of daily flights leaving at noon.

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

The number of flights available between Jacksonville and St. Louis is 10 per week as of October 2025. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.

When to book flights from Jacksonville to St. Louis

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

How far is Jacksonville to Lambert-St Louis by plane?

When did momondo last update prices for flights from Jacksonville Airport to Lambert-St Louis Airport?

How many operators does momondo search for flights from Jacksonville Airport to Lambert-St Louis Airport?

How old do you have to be to fly from Jacksonville Airport to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from Jacksonville to St. Louis?

What is the most popular airline from Jacksonville to St. Louis?

Best airlines flying from Jacksonville to St. Louis

Compare and see reviews for airlines that fly from Jacksonville to St. Louis with momondo

Southwest Flights From Jacksonville to St. Louis

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis 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 Missouri