$78+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — JAX
Nov 28 — Dec 51
Round-trip
1 adult, Economy
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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 85 days in advance, depart on a Monday or Tuesday 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 29, 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 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/187:03 pm -
1 stop24h 36m
Deal found 10/27![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 -
2 stops37h 11m
Wed 11/187:03 pm -
1 stop24h 36m
Deal found 10/27![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/1112:02 pm -
1 stop25h 18m
Wed 12/163:39 pm -
2 stops34h 02m
Deal found 10/24![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/1112:02 pm -
1 stop25h 18m
Tue 12/153:20 pm -
2 stops20h 57m
Deal found 10/24![Multiple Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 10/24. 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.
Mon 11/308:00 pm -
Nonstop2h 05m
Fri 12/187:40 pm -
1 stop5h 15m
Deal found 10/24![Southwest logo]()
$229
This Delta deal was found by Cheapflights users on 10/24. 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.
Mon 11/305:30 pm -
1 stop4h 24m
Fri 12/1812:59 pm -
1 stop6h 14m
Deal found 10/24![Delta logo]()
$230
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Mon 11/164:26 pm -
2 stops24h 45m
Wed 11/187:03 pm -
2 stops18h 30m
Deal found 10/26![Frontier logo]()
$232
This Southwest deal was found by Cheapflights users on 10/27. 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 12/26:15 pm -
Nonstop2h 00m
Thu 12/36:05 am -
Nonstop2h 15m
Deal found 10/27![Southwest logo]()
$243
This Mytrip deal was found by Cheapflights users on 10/24. 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 12/36:13 pm -
2 stops21h 57m
Mon 12/75:47 pm -
2 stops31h 25m
Deal found 10/24![Frontier logo]()
$247
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 29, 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 29, 2026.
This Southwest deal was found by Cheapflights users on 10/26. 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 11/186:15 pm -
Nonstop2h 00m
Thu 11/196:05 am -
Nonstop2h 15m
Deal found 10/26![Southwest logo]()
$243
This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 12/227:05 am -
1 stop6h 22m
Mon 12/287:00 am -
1 stop5h 52m
Deal found 10/26![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/235:34 pm -
1 stop5h 08m
Tue 12/14:45 pm -
1 stop7h 14m
Deal found 10/24![United Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 10/27. 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 12/211:45 am -
2 stops8h 35m
Thu 12/36:35 am -
2 stops8h 10m
Deal found 10/27![Southwest logo]()
$263
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 1/45:45 am -
2 stops6h 10m
Sat 1/910:55 am -
2 stops9h 30m
Deal found 10/27![Southwest logo]()
$317
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:18 pm -
1 stop3h 35m
Sat 12/57:17 pm -
1 stop5h 48m
Deal found 10/28![Delta logo]()
$390
This Southwest deal was found by Cheapflights users on 10/24. 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 2/265:30 am -
1 stop5h 30m
Sun 2/286:30 am -
2 stops8h 25m
Deal found 10/24![Southwest logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/249:40 am -
2 stops10h 30m
Tue 12/14:45 pm -
1 stop7h 14m
Deal found 10/27![United Airlines logo]()
$445
This Southwest deal was found by Cheapflights users on 10/24. 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 2/610:05 am -
2 stops9h 15m
Sun 2/145:55 am -
1 stop7h 10m
Deal found 10/24![Southwest logo]()
$366
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:30 am -
2 stops11h 40m
Tue 11/176:00 am -
2 stops10h 43m
Deal found 10/24![United Airlines logo]()
$462
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:55 am -
2 stops9h 25m
Tue 12/299:20 pm -
1 stop3h 55m
Deal found 10/28![Southwest logo]()
$373
This Southwest deal was found by Cheapflights users on 10/26. 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 11/258:00 pm -
Nonstop2h 05m
Mon 11/307:40 pm -
1 stop5h 15m
Deal found 10/26![Southwest logo]()
$402
Last-minute flights from St. Louis to JacksonvilleDiscover last-minute flight deals from St. Louis to Jacksonville. Data last updated October 29, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Jacksonville. Data last updated October 29, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/187:03 pm -
1 stop24h 36m
Deal found 10/27![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 -
2 stops37h 11m
Wed 11/187:03 pm -
1 stop24h 36m
Deal found 10/27![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 10/26. 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
Sun 11/229:08 pm -
2 stops21h 32m
Deal found 10/26![Multiple Airlines logo]()
$248
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Mon 11/164:26 pm -
2 stops24h 45m
Wed 11/187:03 pm -
2 stops18h 30m
Deal found 10/26![Frontier logo]()
$232
This Southwest deal was found by Cheapflights users on 10/26. 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 11/186:15 pm -
Nonstop2h 00m
Thu 11/196:05 am -
Nonstop2h 15m
Deal found 10/26![Southwest logo]()
$243
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:20 pm -
1 stop12h 15m
Wed 11/256:00 am -
Nonstop2h 20m
Deal found 10/28![Southwest logo]()
$254
This Southwest deal was found by Cheapflights users on 10/24. 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.
Mon 11/308:00 pm -
Nonstop2h 05m
Fri 12/187:40 pm -
1 stop5h 15m
Deal found 10/24![Southwest logo]()
$229
This Delta deal was found by Cheapflights users on 10/24. 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.
Mon 11/305:30 pm -
1 stop4h 24m
Fri 12/1812:59 pm -
1 stop6h 14m
Deal found 10/24![Delta logo]()
$230
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 29, 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 29, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1112:02 pm -
1 stop4h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$78
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/106:20 pm -
2 stops21h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$114
This Southwest deal was found by Cheapflights users on 10/27. 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 11/176:15 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$122
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:29 pm -
1 stop4h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Delta logo]()
$127
This Southwest deal was found by Cheapflights users on 10/24. 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.
Mon 11/308:00 pm -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Southwest logo]()
$131
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 11/266:00 am -
2 stops8h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$137
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:55 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 10/26. 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 12/106:15 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$149
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/278:30 am -
1 stop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$152
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 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $103 (Kiwi.com) |
One-way from | $78 (Priceline) |
Popular in | July |
Cheapest in | August |
Average price | $397 |
Good round-trip deal | $288 or less |
Good one-way deal | $223 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 29, 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 12/12
10:35 am-1:30 pm
Nonstop1h 55m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 12/17
7:55 pm-10:55 pm
Nonstop2h 00m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Sat 12/12
2:33 pm-9:54 pm
1 stop6h 21m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$127
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Tue 11/17
12:29 pm-5:49 pm
1 stop4h 20m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$127
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 11/26
8:00 am-2:53 pm
1 stop5h 53m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$127
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Mon 11/30
8:00 pm-11:05 pm
Nonstop2h 05m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$131
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Tue 11/17
5:30 am-3:05 pm
2 stops8h 35m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$132
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Thu 12/24
4:15 pm-10:20 pm
1 stop5h 05m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Sat 12/12
6:30 am-4:23 pm
2 stops8h 53m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$157
St. LouisJacksonville
STL Lambert-St Louis - JAX Jacksonville
STLJAX
Lambert-St Louis
Mon 11/9
6:34 pm-6:11 pm
1 stop22h 37m
Jacksonville
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
Showing 1-10 of 24 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 Accuracy2 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 77 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 29, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Jacksonville in the morning. If you’re flexible enough to do this you can expect to save up to 21% 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 29, 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.
Entertainment
7.4
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.4
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.4
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.4
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.4
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Boarding
8.1
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
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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 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$251 | Average$326 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$275 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$292 | Average$366 | FlexibilityNo cancel fee | On-time71% |