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Cheap flights from Jacksonville to St. Louis from $71

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 1/23. 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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American Airlines Logo
7:25 pm - 11:55 pmJAX-STL
5h 30m1 stop
American Airlines Logo
6:00 am - 2:12 pmSTL-JAX
7h 12m1 stop
$260American Airlines
Find Deal
Mon, Dec 29 - Tue, Jan 6
American Airlines Logo
7:19 am - 4:14 pmJAX-STL
9h 55m1 stop
American Airlines Logo
10:17 am - 3:41 pmSTL-JAX
4h 24m1 stop
$273American Airlines
Find Deal
Thu, Jan 29 - Sun, Feb 1
Southwest Logo
8:40 pm - 9:55 pmJAX-STL
2h 15mnonstop
Southwest Logo
8:15 am - 12:55 pmSTL-JAX
3h 40m1 stop
$276Southwest
Find Deal
Mon, Dec 29 - Tue, Jan 6
Delta Logo
5:30 am - 11:05 amJAX-STL
6h 35m1 stop
Delta Logo
7:10 am - 2:07 pmSTL-JAX
5h 57m1 stop
$277Delta
Find Deal
Sun, Jan 18 - Thu, Jan 22
Southwest Logo
5:05 pm - 12:05 amJAX-STL
8h 00m2 stops
Southwest Logo
2:20 pm - 8:15 pmSTL-JAX
4h 55m1 stop
$280Southwest
Find Deal
Mon, Dec 29 - Tue, Jan 6
Southwest Logo
5:50 am - 12:20 pmJAX-STL
7h 30m1 stop
Southwest Logo
7:20 pm - 10:15 pmSTL-JAX
1h 55mnonstop
$294Southwest
Find Deal
Thu, Jan 29 - Sun, Feb 1
Southwest Logo
11:50 am - 6:45 pmJAX-STL
7h 55m2 stops
Southwest Logo
5:25 am - 12:55 pmSTL-JAX
6h 30m1 stop
$299Southwest
Find Deal
Thu, Jan 29 - Sun, Feb 1
Southwest Logo
11:50 am - 7:00 pmJAX-STL
8h 10m2 stops
Southwest Logo
9:40 am - 6:20 pmSTL-JAX
7h 40m2 stops
$304Southwest
Find Deal
Thu, Jan 29 - Sun, Feb 1
Southwest Logo
5:05 pm - 12:05 amJAX-STL
8h 00m2 stops
Southwest Logo
8:15 am - 5:00 pmSTL-JAX
7h 45m2 stops
$309Southwest
Find Deal
Mon, Dec 29 - Tue, Jan 6
Delta Logo
3:12 pm - 10:16 pmJAX-STL
8h 04m1 stop
Delta Logo
7:00 am - 12:38 pmSTL-JAX
4h 38m1 stop
$317Delta
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Wed, Dec 31 - Thu, Jan 1

United Airlines flights from Jacksonville to St. Louis

Our best United Airlines deals on Jacksonville to St. Louis flight tickets
United Airlines
Mar 23
JAX3:14 pmJacksonville
6h 46m
1 stop
STL9:00 pmLambert-St Louis
Mar 27
STL7:41 amLambert-St Louis
12h 40m
2 stops
JAX9:21 pmJacksonville
$339
Find similar
United Airlines
Dec 19
JAX4:39 pmJacksonville
7h 04m
1 stop
STL10:43 pmLambert-St Louis
Jan 6
STL6:00 amLambert-St Louis
8h 38m
1 stop
JAX3:38 pmJacksonville
$387
Find similar
United Airlines
Dec 16
JAX5:16 pmJacksonville
5h 42m
1 stop
STL9:58 pmLambert-St Louis
Dec 17
STL8:30 amLambert-St Louis
5h 28m
1 stop
JAX2:58 pmJacksonville
$392
Find similar

Delta flights from Jacksonville to St. Louis

Our best Delta deals on Jacksonville to St. Louis flight tickets
Delta
Jan 18
JAX5:30 amJacksonville
6h 35m
1 stop
STL11:05 amLambert-St Louis
Jan 22
STL7:10 amLambert-St Louis
5h 57m
1 stop
JAX2:07 pmJacksonville
$277
Find similar
Delta
Mar 6
JAX5:58 pmJacksonville
3h 43m
1 stop
STL8:41 pmLambert-St Louis
Mar 8
STL6:59 pmLambert-St Louis
3h 58m
1 stop
JAX11:57 pmJacksonville
$303
Find similar
Delta
Dec 31
JAX3:12 pmJacksonville
8h 04m
1 stop
STL10:16 pmLambert-St Louis
Jan 1
STL7:00 amLambert-St Louis
4h 38m
1 stop
JAX12:38 pmJacksonville
$317
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Jacksonville to St. Louis 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 December 2, 2025.
Use the filters below to find and compare flights from Jacksonville to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 12/29

7:25 pm-11:55 pm

1 stop5h 30m

Lambert-St Louis

Tue 1/6

6:00 am-2:12 pm

1 stop7h 12m

$260

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 1/29

7:19 am-4:14 pm

1 stop9h 55m

Lambert-St Louis

Sun 2/1

10:17 am-3:41 pm

1 stop4h 24m

$273

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 12/29

8:40 pm-9:55 pm

Nonstop2h 15m

Lambert-St Louis

Tue 1/6

8:15 am-12:55 pm

1 stop3h 40m

$276

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sun 1/18

5:30 am-11:05 am

1 stop6h 35m

Lambert-St Louis

Thu 1/22

7:10 am-2:07 pm

1 stop5h 57m

$277

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 12/29

5:05 pm-12:05 am

2 stops8h 00m

Lambert-St Louis

Tue 1/6

2:20 pm-8:15 pm

1 stop4h 55m

$280

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 1/29

5:50 am-12:20 pm

1 stop7h 30m

Lambert-St Louis

Sun 2/1

7:20 pm-10:15 pm

Nonstop1h 55m

$294

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 1/29

11:50 am-6:45 pm

2 stops7h 55m

Lambert-St Louis

Sun 2/1

5:25 am-12:55 pm

1 stop6h 30m

$299

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 1/29

11:50 am-7:00 pm

2 stops8h 10m

Lambert-St Louis

Sun 2/1

9:40 am-6:20 pm

2 stops7h 40m

$304

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 12/29

5:05 pm-12:05 am

2 stops8h 00m

Lambert-St Louis

Tue 1/6

8:15 am-5:00 pm

2 stops7h 45m

$309

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 12/31

3:12 pm-10:16 pm

1 stop8h 04m

Lambert-St Louis

Thu 1/1

7:00 am-12:38 pm

1 stop4h 38m

$317

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 St. Louis from

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?

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 $441. 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. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $387 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 $323 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 December 2025, prices for Jacksonville to St. Louis flights are approximately 55% more expensive 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

$174

Fastest flight time

2h 15m

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 $174. The best round-trip flight deal from Jacksonville to St. Louis found on momondo in the last 72 hours is $377.
The fastest flight from Jacksonville to St. Louis takes 2h 15m
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 15m.

  • 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $194Free CancellationRating
7.9
8,011 reviews
Search Delta flights
SouthwestPriceFrom $214Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
American AirlinesPriceFrom $218Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights

  • Southwest Flights From Jacksonville to St. Louis

    Southwest flies from Jacksonville to St. Louis around 15 times per week, with 4,253 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Jacksonville to St. Louis in the last 72 hours was $214 (round-trip), much lower than the average airfare cost of $309 for Southwest flights on this route.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
Collinsville
St. Peters
Alton
Farmington
Clayton
Festus
Glencoe
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.

An easier way to manage your St. Louis trip

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