$114+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — STL
may. 6 — may. 131
Round-trip
1 adult, Economy
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Find cheap flights from Jacksonville to St. Louis with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Jacksonville to Lambert-St Louis are usually found in July or August, booked 29 days in advance, depart on a Tuesday or Friday and return on a Friday
Cheap flight deals from Jacksonville to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Jacksonville to St. LouisExplore 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 abril 6, 2026.
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 abril 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
lun. 5/412:51 pm
JAX
- STL
2 stops45h 04m
Multiple Airlines
lun. 5/115:27 pm
STL
- JAX
1 stop23h 08m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 4/5. 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.
mar. 5/128:20 am
JAX
- STL
Nonstop2h 15m
Southwest
mié. 5/1310:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/5![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 4/5. 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.
mar. 5/125:00 pm
JAX
- STL
1 stop6h 56m
United Airlines
mié. 5/1310:25 am
STL
- JAX
1 stop6h 20m
United Airlines
Deal found 4/5![United Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
lun. 6/16:30 pm
JAX
- STL
1 stop24h 03m
Frontier
lun. 6/85:27 pm
STL
- JAX
1 stop23h 10m
Frontier
Deal found 4/4![Frontier logo]()
$276
This Southwest deal was found by Cheapflights users on 4/5. 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.
sáb. 5/94:50 pm
JAX
- STL
Nonstop2h 20m
Southwest
mar. 5/1210:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/5![Southwest logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
vie. 5/156:30 pm
JAX
- STL
1 stop15h 25m
Frontier
lun. 5/185:27 pm
STL
- JAX
1 stop23h 08m
Frontier
Deal found 4/5![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
lun. 5/46:49 pm
JAX
- STL
1 stop23h 47m
Frontier
lun. 5/115:27 pm
STL
- JAX
1 stop23h 08m
Frontier
Deal found 4/4![Frontier logo]()
$286
This United Airlines deal was found by Cheapflights users on 4/1. 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.
mié. 4/223:10 pm
JAX
- STL
1 stop7h 03m
United Airlines
sáb. 4/257:45 am
STL
- JAX
1 stop5h 29m
United Airlines
Deal found 4/1![United Airlines logo]()
$287
Best flights from Jacksonville to St. LouisDiscover carefully curated flight deals from Jacksonville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 6, 2026.
Discover carefully curated flight deals from Jacksonville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 6, 2026.
This Southwest deal was found by Cheapflights users on 4/5. 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.
sáb. 5/94:50 pm
JAX
- STL
Nonstop2h 20m
Southwest
mar. 5/1210:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/5![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 4/5. 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.
sáb. 5/95:00 pm
JAX
- STL
1 stop5h 13m
United Airlines
mar. 5/126:30 am
STL
- JAX
2 stops7h 55m
United Airlines
Deal found 4/5![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 4/4. 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.
vie. 4/245:39 pm
JAX
- STL
1 stop6h 57m
Delta
mar. 4/281:02 pm
STL
- JAX
1 stop6h 10m
Delta
Deal found 4/4![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 4/3. 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.
jue. 4/233:35 pm
JAX
- STL
Nonstop2h 15m
Southwest
lun. 4/271:55 pm
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/3![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 4/3. 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.
vie. 6/128:18 pm
JAX
- STL
1 stop4h 38m
Delta
dom. 6/216:00 am
STL
- JAX
1 stop3h 45m
Delta
Deal found 4/3![Delta logo]()
$325
This Southwest deal was found by Cheapflights users on 4/5. 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.
sáb. 5/94:50 pm
JAX
- STL
Nonstop2h 20m
Southwest
lun. 5/114:40 pm
STL
- JAX
1 stop4h 25m
Southwest
Deal found 4/5![Southwest logo]()
$296
This Delta deal was found by Cheapflights users on 4/5. 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.
jue. 7/2310:44 am
JAX
- STL
1 stop6h 30m
Delta
sáb. 7/258:00 am
STL
- JAX
1 stop6h 09m
Delta
Deal found 4/5![Delta logo]()
$325
This Southwest deal was found by Cheapflights users on 4/2. 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.
vie. 5/225:35 am
JAX
- STL
1 stop5h 00m
Southwest
dom. 5/2412:20 pm
STL
- JAX
1 stop5h 35m
Southwest
Deal found 4/2![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 4/3. 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.
mié. 4/221:15 pm
JAX
- STL
2 stops7h 45m
Southwest
sáb. 4/255:05 pm
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/3![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 4/5. 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.
vie. 5/88:15 pm
JAX
- STL
1 stop4h 00m
Southwest
dom. 5/103:40 pm
STL
- JAX
2 stops7h 10m
Southwest
Deal found 4/5![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 4/2. 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.
vie. 7/317:45 am
JAX
- STL
1 stop7h 25m
Southwest
dom. 8/25:30 pm
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/2![Southwest logo]()
$341
Last-minute flights from Jacksonville to St. LouisDiscover last-minute flight deals from Jacksonville to St. Louis. Data last updated abril 6, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to St. Louis. Data last updated abril 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/1. 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.
mié. 4/223:10 pm
JAX
- STL
1 stop7h 03m
United Airlines
sáb. 4/257:45 am
STL
- JAX
1 stop5h 29m
United Airlines
Deal found 4/1![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 4/2. 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.
jue. 4/233:35 pm
JAX
- STL
Nonstop2h 15m
Southwest
lun. 4/271:55 pm
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/2![Southwest logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
lun. 5/412:51 pm
JAX
- STL
2 stops45h 04m
Multiple Airlines
lun. 5/115:27 pm
STL
- JAX
1 stop23h 08m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
lun. 5/46:49 pm
JAX
- STL
1 stop23h 47m
Frontier
lun. 5/115:27 pm
STL
- JAX
1 stop23h 08m
Frontier
Deal found 4/4![Frontier logo]()
$286
This Southwest deal was found by Cheapflights users on 4/5. 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.
sáb. 5/94:50 pm
JAX
- STL
Nonstop2h 20m
Southwest
mar. 5/1210:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/5![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/6. 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.
sáb. 5/94:50 pm
JAX
- STL
Nonstop2h 20m
Southwest
mar. 5/192:30 pm
STL
- JAX
1 stop6h 00m
Southwest
Deal found 4/6![Southwest logo]()
$282
This Southwest deal was found by Cheapflights users on 4/5. 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.
mar. 5/128:20 am
JAX
- STL
Nonstop2h 15m
Southwest
mié. 5/1310:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 4/5![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 4/5. 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.
mar. 5/125:00 pm
JAX
- STL
1 stop6h 56m
United Airlines
mié. 5/1310:25 am
STL
- JAX
1 stop6h 20m
United Airlines
Deal found 4/5![United Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
vie. 5/156:30 pm
JAX
- STL
1 stop15h 25m
Frontier
lun. 5/185:27 pm
STL
- JAX
1 stop23h 08m
Frontier
Deal found 4/5![Frontier logo]()
$281
One-way flights from Jacksonville to St. LouisSearch for one-way flight options from Jacksonville to St. Louis. Find affordable one-way fares based on user searches. Data last updated abril 6, 2026.
Search for one-way flight options from Jacksonville to St. Louis. Find affordable one-way fares based on user searches. Data last updated abril 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
lun. 6/224:07 pm
JAX
- STL
2 stops41h 45m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
lun. 4/279:49 pm
JAX
- STL
2 stops34h 01m
Frontier
Deal found 4/5![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
lun. 5/1812:51 pm
JAX
- STL
2 stops45h 04m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
mar. 5/56:30 pm
JAX
- STL
1 stop15h 25m
Frontier
Deal found 4/6![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
lun. 5/1112:51 pm
JAX
- STL
2 stops45h 04m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
mié. 5/66:30 pm
JAX
- STL
1 stop23h 24m
Frontier
Deal found 4/6![Frontier logo]()
$129
Find 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 abril 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Kiwi.com) |
One-way from | $114 (Kiwi.com) |
Popular in | March |
Cheapest in | July |
Average price | $356 |
Good round-trip deal | $327 or less |
Good one-way deal | $148 or less |
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 abril 6, 2026.
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
Cheapest round-trip
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
sáb. 5/9
4:50 pm-6:10 pm
Nonstop2h 20m
Lambert-St Louis
mar. 5/12
10:15 am-1:15 pm
Nonstop2h 00m
$277
Quickest round-trip
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
jue. 4/23
3:35 pm-4:50 pm
Nonstop2h 15m
Lambert-St Louis
lun. 4/27
1:55 pm-4:55 pm
Nonstop2h 00m
$291
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
sáb. 5/9
5:00 pm-9:13 pm
1 stop5h 13m
Lambert-St Louis
mar. 5/12
6:30 am-3:25 pm
2 stops7h 55m
$292
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
sáb. 5/9
4:50 pm-6:10 pm
Nonstop2h 20m
Lambert-St Louis
lun. 5/11
4:40 pm-10:05 pm
1 stop4h 25m
$296
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
vie. 4/24
5:39 pm-11:36 pm
1 stop6h 57m
Lambert-St Louis
mar. 4/28
1:02 pm-8:12 pm
1 stop6h 10m
$299
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
vie. 6/12
8:18 pm-11:56 pm
1 stop4h 38m
Lambert-St Louis
dom. 6/21
6:00 am-10:45 am
1 stop3h 45m
$325
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
jue. 7/23
10:44 am-4:14 pm
1 stop6h 30m
Lambert-St Louis
sáb. 7/25
8:00 am-3:09 pm
1 stop6h 09m
$325
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
vie. 5/22
5:35 am-9:35 am
1 stop5h 00m
Lambert-St Louis
dom. 5/24
12:20 pm-6:55 pm
1 stop5h 35m
$325
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
mié. 4/22
1:15 pm-8:00 pm
2 stops7h 45m
Lambert-St Louis
sáb. 4/25
5:05 pm-8:05 pm
Nonstop2h 00m
$326
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
vie. 5/8
8:15 pm-11:15 pm
1 stop4h 00m
Lambert-St Louis
dom. 5/10
3:40 pm-11:50 pm
2 stops7h 10m
$330
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Jacksonville to St. Louis
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 Jacksonville to St. Louis in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Jacksonville-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Jacksonville-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Jacksonville-St. Louis 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 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.
JAX-STL
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 April 3, 2026.
The best time to book flights from Jacksonville to St. Louis is 29 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 $186). Flying from Jacksonville to St. Louis in March is currently the most expensive (average of $307). 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 abril 6, 2026.
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 15% 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 April 4, 2026.
Travelers seeking maximum savings on their Jacksonville to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Jacksonville to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Jacksonville to St. Louis trip
Our travel experts
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 abril 6, 2026.
Read through reviews of airlines operating flights from Jacksonville to St. Louis, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Top 3 airlines flying from Jacksonville to St. Louis
Discover the top 3 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 abril 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$214 | Average$317 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$233 | Average$429 | FlexibilityNo cancel fee | On-time71% |