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$79+ Cheap flights from Jacksonville to St. Louis (JAX - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Jacksonville to Lambert-St Louis are usually found in July or April, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Jacksonville to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$157
(Southwest)

One-way from

$79
(Southwest)

Popular in

March

Cheapest in

July

Average price

$284

Good round-trip deal

$257 or less

Good one-way deal

$159 or less
From Jacksonville to Lambert-St Louis
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One-way flight from Jacksonville to Lambert-St Louis
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Jacksonville to Lambert-St Louis.
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Price to beat on a one-way flight from Jacksonville to Lambert-St Louis.
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Find flight deals from Jacksonville to St. Louis

Cheapest flights from Jacksonville to St. Louis
Explore the most affordable flight options available from Jacksonville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/248:30 pmJAX - STL
Nonstop2h 15mSouthwest
Sun 7/278:40 pmSTL - JAX
Nonstop2h 00mSouthwest
Deal found 7/2$157
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/245:10 amJAX - STL
1 stop5h 31mDelta
Sun 7/277:11 pmSTL - JAX
1 stop4h 44mDelta
Deal found 7/2$177
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:55 pmJAX - STL
1 stop6h 19mAmerican Airlines
Thu 7/314:28 pmSTL - JAX
1 stop6h 56mAmerican Airlines
Deal found 7/1$187
This Booking.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:02 pmJAX - STL
1 stop5h 50mFrontier
Sun 10/1211:02 amSTL - JAX
1 stop3h 56mFrontier
Deal found 7/2$252
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:42 pmJAX - STL
1 stop7h 17mUnited Airlines
Thu 11/138:20 amSTL - JAX
1 stop6h 14mUnited Airlines
Deal found 7/1$328
This Mytrip deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/249:44 amJAX - STL
2 stops9h 57mMultiple Airlines
Sun 7/275:26 pmSTL - JAX
2 stops20h 03mMultiple Airlines
Deal found 7/2$334

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Jacksonville to St. Louis that are best for you.

Fly from

Jacksonville

Fly to

St. Louis

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 7/24

8:30 pm-9:45 pm

Nonstop2h 15m

Lambert-St Louis

Sun 7/27

8:40 pm-11:40 pm

Nonstop2h 00m

$157

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 7/24

5:10 am-9:41 am

1 stop5h 31m

Lambert-St Louis

Sun 7/27

7:11 pm-12:55 am

1 stop4h 44m

$177

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Tue 7/22

1:55 pm-7:14 pm

1 stop6h 19m

Lambert-St Louis

Thu 7/31

4:28 pm-12:24 am

1 stop6h 56m

$187

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Fri 10/10

12:02 pm-4:52 pm

1 stop5h 50m

Lambert-St Louis

Sun 10/12

11:02 am-3:58 pm

1 stop3h 56m

$252

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 11/10

3:42 pm-9:59 pm

1 stop7h 17m

Lambert-St Louis

Thu 11/13

8:20 am-3:34 pm

1 stop6h 14m

$328

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 7/24

9:44 am-6:41 pm

2 stops9h 57m

Lambert-St Louis

Sun 7/27

5:26 pm-2:29 pm

2 stops20h 03m

$334

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sun 8/17

8:10 am-9:20 am

Nonstop2h 10m

$79

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sun 8/17

7:20 am-9:57 am

1 stop3h 37m

$89

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 10/1

7:15 am-3:44 pm

2 stops9h 29m

$109

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sat 11/15

11:03 am-5:07 pm

1 stop7h 04m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 11 results
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The best insider tips for Jacksonville to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Jacksonville to St. Louis trip
Airports
JAX

JAX offers quick screening times at TSA and easy check-in, making it convenient for early morning departures.

Read more about JAXby Matt Meltzer
STL

Use the MetroLink light rail for a convenient and economical way to reach downtown St. Louis from STL.

Read more about STLby Taryn White
Our travel experts
Matt Meltzer

Matt Meltzer

Expert on JAX

Matt Meltzer

Matt Meltzer

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from Jacksonville to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Jacksonville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Jacksonville to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Jacksonville to St. Louis. Price data was last updated on June 27, 2025.

The best time to book flights from Jacksonville to St. Louis is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Jacksonville to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Jacksonville to St. Louis (average of $311). Flying from Jacksonville to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from JAX to STL?

Find hourly flight availability from Jacksonville to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Jacksonville to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight at noon.

What is the cheapest day to fly from Jacksonville to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Jacksonville to St. Louis. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Jacksonville to St. Louis flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Jacksonville to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,284 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Crew

8.6

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Jacksonville to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Jacksonville to St. Louis?

    If you book a flight from Jacksonville to St. Louis, you will be flying from Jacksonville to Lambert-St Louis. Flights to Lambert-St Louis (STL) from Jacksonville (JAX) take 2h 10m for a nonstop flight. There is 1 flight from Jacksonville to St. Louis per day from 4 airlines.

  • How popular is this Jacksonville to St. Louis flight route?

    The Jacksonville to Lambert-St Louis flight path was viewed by 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Jacksonville to St. Louis round-trip?

    Southwest, at $157, was found to be the cheapest airline from Jacksonville to St. Louis.Alternate airlines to your destination round-trip include Delta and American Airlines. Southwest is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Jacksonville to St. Louis one-way?

    The cheapest airlines for a one-way flight from Jacksonville to St. Louis are Southwest ($79), Delta ($89), and United Airlines ($109).

  • What are the cheapest flights from Jacksonville to St. Louis?

    On average you can expect to pay $265 for a flight from Jacksonville to St. Louis. The cheapest flight overall is $148 while the most popular route, (Jacksonville - Lambert-St Louis) is currently priced at $157.

  • Can I find deals for flights from Jacksonville to St. Louis that include hotel bookings?

    Yes. In addition to deals on Jacksonville to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Jacksonville to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Jacksonville to St. Louis.

  • Can I find deals for business class flights from Jacksonville to St. Louis?

    Yes. Cheapflights offers flight deals from Jacksonville to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Jacksonville to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Jacksonville to St. Louis (average of $311). Flying from Jacksonville to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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Top 4 airlines flying from Jacksonville to St. Louis

Discover the top 4 airlines that operate flights from Jacksonville to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$216Average$330FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$392FlexibilityNo cancel feeOn-time69%
DeltaCheapest$218Average$328FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$227Average$337FlexibilityNo cancel feeOn-time63%

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