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$90+ Cheap flights from St. Louis to Jacksonville (STL - JAX)

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — JAX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Lambert-St Louis to Jacksonville are usually found in October or September, booked 85 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from St. Louis to Jacksonville

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Jacksonville (JAX). 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(American Airlines)

One-way from

$90
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$275

Good round-trip deal

$264 or less
Provider with most accurate pricing for Lambert-St Louis-Jacksonville flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Jacksonville flights.
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From Lambert-St Louis to Jacksonville
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One-way flight from Lambert-St Louis to Jacksonville
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Jacksonville.
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Find flight deals from St. Louis to Jacksonville

Cheapest flights from St. Louis to Jacksonville
Explore the most affordable flight options available from St. Louis to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:42 amSTL - JAX
1 stop5h 58mMultiple Airlines
Sun 12/710:49 amJAX - STL
2 stops36h 44mMultiple Airlines
Deal found 10/29$248
This Southwest deal was found by Cheapflights users on 10/29. 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.
Fri 12/56:10 pmSTL - JAX
Nonstop1h 55mSouthwest
Tue 12/96:10 pmJAX - STL
Nonstop2h 20mSouthwest
Deal found 10/29$261
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:22 pmSTL - JAX
1 stop17h 17mFrontier
Mon 11/177:56 pmJAX - STL
2 stops38h 11mFrontier
Deal found 10/29$270
This Delta deal was found by Cheapflights users on 10/29. 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.
Fri 12/55:12 pmSTL - JAX
1 stop5h 59mDelta
Tue 12/95:05 amJAX - STL
1 stop4h 19mDelta
Deal found 10/29$271
This Southwest deal was found by Cheapflights users on 10/30. 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.
Tue 12/28:25 amSTL - JAX
1 stop5h 55mSouthwest
Thu 12/46:10 pmJAX - STL
Nonstop2h 20mSouthwest
Deal found 10/30$277
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/186:05 amSTL - JAX
1 stop4h 54mAmerican Airlines
Mon 12/224:55 pmJAX - STL
1 stop7h 01mAmerican Airlines
Deal found 10/28$281
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/186:05 amSTL - JAX
1 stop4h 54mAmerican Airlines
Sun 12/215:00 amJAX - STL
1 stop4h 35mAmerican Airlines
Deal found 10/28$282
This Southwest deal was found by Cheapflights users on 10/29. 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.
Wed 11/269:00 pmSTL - JAX
Nonstop1h 55mSouthwest
Wed 12/38:15 amJAX - STL
Nonstop2h 20mSouthwest
Deal found 10/29$297
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 11/285:00 amSTL - JAX
1 stop5h 42mAmerican Airlines
Sat 12/134:48 pmJAX - STL
1 stop6h 59mAmerican Airlines
Deal found 10/28$299
This Southwest deal was found by Cheapflights users on 10/29. 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.
Fri 12/56:10 pmSTL - JAX
Nonstop1h 55mSouthwest
Sun 12/77:10 pmJAX - STL
Nonstop2h 20mSouthwest
Deal found 10/29$301

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Jacksonville 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 October 30, 2025.
Use the filters below to find and compare flights from St. Louis to Jacksonville that are best for you.

Fly from

St. Louis

Fly to

Jacksonville

Route

Depart

Return

Price

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 1/5

7:50 am-10:50 am

Nonstop2h 00m

Jacksonville

Mon 1/12

7:00 pm-9:55 pm

1 stop3h 55m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 1/21

5:04 pm-9:52 pm

1 stop3h 48m

Jacksonville

Mon 1/26

7:59 pm-11:39 pm

1 stop4h 40m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 1/6

7:00 am-3:41 pm

1 stop7h 41m

Jacksonville

Tue 1/13

4:23 pm-10:58 pm

1 stop7h 35m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 1/24

7:10 am-2:36 pm

1 stop6h 26m

Jacksonville

Tue 1/27

3:16 pm-8:39 pm

1 stop6h 23m

$264

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 1/24

3:11 pm-9:54 pm

1 stop5h 43m

Jacksonville

Tue 1/27

2:40 pm-9:13 pm

1 stop7h 33m

$264

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Tue 1/6

8:55 am-6:10 pm

2 stops8h 15m

Jacksonville

Tue 1/13

10:30 am-5:05 pm

2 stops7h 35m

$267

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 1/23

1:05 pm-8:43 pm

1 stop6h 38m

Jacksonville

Mon 1/26

5:39 pm-11:39 pm

1 stop7h 00m

$271

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 12/11

6:10 pm-9:05 pm

Nonstop1h 55m

Jacksonville

Sun 12/14

7:10 pm-8:30 pm

Nonstop2h 20m

$277

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 12/4

8:15 am-11:15 am

Nonstop2h 00m

Jacksonville

Sun 12/7

5:30 pm-11:15 pm

1 stop6h 45m

$277

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 1/7

7:10 am-12:11 pm

1 stop4h 01m

Jacksonville

Sun 1/11

6:30 am-11:05 am

1 stop5h 35m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 22 results
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Compare providers for flights from St. Louis to Jacksonville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Jacksonville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Jacksonville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Jacksonville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Jacksonville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Jacksonville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Jacksonville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from St. Louis 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 St. Louis to Jacksonville

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Jacksonville. Price data was last updated on October 24, 2025.

The price you pay for your flight from St. Louis to Jacksonville may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Jacksonville (average of $167). Flying from St. Louis to Jacksonville in December is currently the most expensive (average of $260). 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 STL to JAX?

Find hourly flight availability from St. Louis to Jacksonville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Jacksonville in the afternoon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Jacksonville. Price data was last updated on October 26, 2025.

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

The best insider tips for St. Louis to Jacksonville 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 St. Louis to Jacksonville trip
Airports
STL

Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Read more about STLby Taryn White
JAX

At JAX, rental car counters are inside baggage claim. Get your rental while waiting for bags for efficiency.

Read more about JAXby Matt Meltzer
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

Reviews of airlines servicing Jacksonville

Get insights into the airlines that provide service to Jacksonville. 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 Jacksonville. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from St. Louis to Jacksonville, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

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

    Flights from Lambert-St Louis to Jacksonville have been viewed 6 times in the past calendar month.

  • How long is the flight from St. Louis to Jacksonville?

    Southwest, Delta, and United Airlines can get you from St. Louis to Jacksonville in just under 2h. Your travel time can differ by up to 5h 41m. Airlines will cover a distance of 753 mi. This flight may include one or multiple stops.

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

    According to our current data, Delta ($205), American Airlines ($211), and Southwest ($214) offers the cheapest pricing from St. Louis to Jacksonville. You may be able to fly from St. Louis to Jacksonville for 34% less than the average price by searching for these airlines.

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

    Looking for the cheapest flight from St. Louis to Jacksonville? While on average our users pay $294, our data indicates the cheapest price to be $217. The most popular route (Lambert-St Louis - Jacksonville), is priced around $247.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Jacksonville 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 St. Louis to Jacksonville?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Jacksonville (average of $167). Flying from St. Louis to Jacksonville in December is currently the most expensive (average of $260). 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
Jacksonville Beach
Orange Park
Fernandina Beach
Kingsland
Waycross

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Top 3 airlines flying from St. Louis to Jacksonville

Discover the top 3 airlines that operate flights from St. Louis to Jacksonville. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$205Average$305FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$211Average$292FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$214Average$318FlexibilityNo cancel feeOn-time63%

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