$49+ Cheap flights from St. Louis to Jacksonville (STL - JAX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — JAX
Nov 9 — Nov 161
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Jacksonville 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 Lambert-St Louis to Jacksonville are usually found in August or January, booked 53 days in advance, depart on a Tuesday or Monday and return on a Wednesday
Cheap flight deals from St. Louis to Jacksonville
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to JacksonvilleExplore 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 10, 2026.
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 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Mon 11/306:35 pm -
1 stop19h 36m
Sat 12/53:56 pm -
2 stops9h 16m
Deal found 10/6![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 12/412:02 pm -
1 stop26h 09m
Thu 12/105:55 pm -
1 stop18h 22m
Deal found 10/8![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Wed 11/46:44 pm -
1 stop22h 27m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Wed 11/46:44 pm -
1 stop22h 27m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Wed 11/119:09 am -
2 stops9h 33m
Deal found 10/7![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Mon 11/212:14 pm -
2 stops28h 54m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Mon 11/212:14 pm -
2 stops28h 54m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Sat 11/147:16 pm -
2 stops17h 03m
Deal found 10/7![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/54:26 pm -
2 stops25h 59m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$190
Best flights from St. Louis to JacksonvilleDiscover carefully curated flight deals from St. Louis to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
Discover carefully curated flight deals from St. Louis to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 10, 2026.
This Southwest deal was found by Cheapflights users on 10/8. 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.
Sat 11/75:05 pm -
Nonstop2h 00m
Mon 11/97:05 pm -
1 stop4h 45m
Deal found 10/8![Southwest logo]()
$242
This Southwest deal was found by Cheapflights users on 10/7. 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.
Sat 10/319:25 am -
1 stop6h 00m
Mon 11/23:35 pm -
2 stops6h 25m
Deal found 10/7![Southwest logo]()
$244
This Southwest deal was found by Cheapflights users on 10/8. 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 1/146:40 am -
1 stop5h 40m
Tue 1/196:00 am -
1 stop6h 55m
Deal found 10/8![Southwest logo]()
$246
This Southwest deal was found by Cheapflights users on 10/7. 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 11/410:15 am -
2 stops9h 20m
Wed 11/116:35 am -
2 stops8h 10m
Deal found 10/7![Southwest logo]()
$262
This Southwest deal was found by Cheapflights users on 10/9. 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 11/46:15 pm -
Nonstop2h 00m
Mon 11/95:45 am -
Nonstop2h 20m
Deal found 10/9![Southwest logo]()
$283
This Southwest deal was found by Cheapflights users on 10/8. 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 12/256:15 pm -
Nonstop1h 55m
Thu 12/316:05 am -
Nonstop2h 15m
Deal found 10/8![Southwest logo]()
$301
This Southwest deal was found by Cheapflights users on 10/7. 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 2/1812:35 pm -
2 stops8h 55m
Mon 2/2211:00 am -
1 stop8h 00m
Deal found 10/7![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 10/9. 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 11/275:45 am -
2 stops6h 10m
Sat 12/56:15 am -
2 stops8h 55m
Deal found 10/9![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 10/5. 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.
Thu 10/297:55 pm -
Nonstop2h 00m
Sun 11/15:45 am -
Nonstop2h 20m
Deal found 10/5![Southwest logo]()
$332
Last-minute flights from St. Louis to JacksonvilleDiscover last-minute flight deals from St. Louis to Jacksonville. Data last updated October 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Jacksonville. Data last updated October 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Mon 11/212:14 pm -
2 stops28h 54m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Mon 11/212:14 pm -
2 stops28h 54m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Wed 11/46:44 pm -
1 stop22h 27m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Wed 11/46:44 pm -
1 stop22h 27m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/54:26 pm -
2 stops25h 59m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Tue 11/107:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Thu 11/127:03 pm -
1 stop23h 39m
Deal found 10/7![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Wed 11/119:09 am -
2 stops9h 33m
Deal found 10/7![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 11/66:34 pm -
1 stop22h 57m
Sat 11/147:16 pm -
2 stops17h 03m
Deal found 10/7![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Mon 11/306:35 pm -
1 stop19h 36m
Sat 12/53:56 pm -
2 stops9h 16m
Deal found 10/6![Frontier logo]()
$148
One-way flights from St. Louis to JacksonvilleSearch for one-way flight options from St. Louis to Jacksonville. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
Search for one-way flight options from St. Louis to Jacksonville. Find affordable one-way fares based on user searches. Data last updated October 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Mon 11/96:34 pm -
1 stop22h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Wed 11/116:34 pm -
1 stop22h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 11/136:34 pm -
1 stop22h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Fri 12/412:02 pm -
1 stop26h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 11/66:34 pm -
1 stop22h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Mon 12/712:02 pm -
1 stop26h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Wed 12/212:02 pm -
1 stop28h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$66
Find 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $133 (Kiwi.com) |
One-way from | $49 (Kiwi.com) |
Popular in | July |
Cheapest in | August |
Average price | $376 |
Good round-trip deal | $320 or less |
Good one-way deal | $161 or less |
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 7,457,451 searches. Data last updated October 10, 2026.
Use the filters below to find and compare flights from St. Louis to Jacksonville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Sat 12/5
10:35 am-1:30 pm
Nonstop1h 55m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$123
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Tue 10/27
5:50 am-12:50 pm
2 stops6h 00m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$125
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 1/7
6:00 am-12:24 pm
1 stop5h 24m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Sat 11/7
2:25 pm-6:59 pm
1 stop3h 34m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Wed 10/28
10:20 am-1:20 pm
Nonstop2h 00m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Mon 11/9
7:55 pm-10:55 pm
Nonstop2h 00m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Tue 10/27
2:25 pm-6:59 pm
1 stop3h 34m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Tue 12/8
10:06 am-5:40 pm
1 stop6h 34m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 12/10
4:15 pm-10:15 pm
1 stop5h 00m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 11/12
7:18 pm-11:53 pm
1 stop3h 35m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
Showing 1-10 of 19 resultsSorted by cheapest first
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Jacksonville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Jacksonville flight deals on Cheapflights vs. FlightHub >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 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 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.
STL-JAX
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?
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 52 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, August is the cheapest month in which you can book a flight from St. Louis to Jacksonville (average of $318). Flying from St. Louis to Jacksonville in July is currently the most expensive (average of $433). 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 10, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Jacksonville at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the evening.
The best insider tips for St. Louis to Jacksonville 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 St. Louis to Jacksonville trip
Our travel experts
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 10, 2026.
Read through reviews of airlines operating flights from St. Louis to Jacksonville, such as Southwest,Delta, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.4
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.4
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.4
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.4
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.4
Boarding
8.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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.
Traveling to a place near Jacksonville?
Book flights to Jacksonville if you plan to visit one of these locationsJacksonville Beach
Fernandina Beach
Orange Park
Kingsland
Waycross
Atlantic Beach
Yulee
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Jacksonville flight routes
Other flight options
Other flights from St. Louis
Popular flights
Alternative routes for St. Louis to Jacksonville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Jacksonville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Jacksonville by cabin class
Find flights from St. Louis to Jacksonville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Jacksonville
Explore flights to Jacksonville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.
St. Louis and Jacksonville flights
Browse other St. Louis and Jacksonville flight options. Last updated on October 10, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from St. Louis to Jacksonville
Discover the top 4 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 7,457,451 searches. Data last updated October 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$251 | Average$390 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$263 | Average$359 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$294 | Average$366 | FlexibilityNo cancel fee | On-time71% |