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.
$119+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — JAX
Feb 5 — Feb 121
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 October or September, booked 76 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 January 6, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $237 (Delta) |
One-way from | $119 (Delta) |
Popular in | December |
Cheapest in | October |
Average price | $331 |
Good round-trip deal | $367 or less |
Find flight deals from St. Louis to Jacksonville
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 January 6, 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 January 6, 2026.
This Delta deal was found by Cheapflights users on 1/5. 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.
Tue 2/109:45 amSTL - JAX
1 stop6h 09mDelta
Tue 2/175:30 amJAX - STL
1 stop4h 36mDelta
Deal found 1/5![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 1/6. 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.
Wed 2/188:55 amSTL - JAX
2 stops8h 15mSouthwest
Wed 2/256:50 amJAX - STL
1 stop4h 25mSouthwest
Deal found 1/6![Southwest logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 3/62:09 pmSTL - JAX
1 stop4h 24mFrontier
Sun 3/84:29 pmJAX - STL
1 stop21h 50mFrontier
Deal found 1/6![Frontier logo]()
$255
This Delta deal was found by Cheapflights users on 1/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/210:19 amSTL - JAX
1 stop5h 36mDelta
Wed 2/412:08 pmJAX - STL
1 stop5h 29mDelta
Deal found 1/6![Delta logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 3/1111:32 amSTL - JAX
1 stop7h 01mFrontier
Sun 3/154:29 pmJAX - STL
1 stop22h 05mFrontier
Deal found 1/6![Frontier logo]()
$266
This United Airlines deal was found by Cheapflights users on 1/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:05 amSTL - JAX
2 stops11h 05mUnited Airlines
Wed 2/45:05 pmJAX - STL
1 stop5h 55mUnited Airlines
Deal found 1/6![United Airlines logo]()
$268
This Southwest deal was found by Cheapflights users on 1/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/12:25 pmSTL - JAX
1 stop6h 30mSouthwest
Mon 4/66:15 amJAX - STL
Nonstop2h 20mSouthwest
Deal found 1/4![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 1/5. 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.
Thu 2/126:00 amSTL - JAX
1 stop5h 17mDelta
Tue 2/175:30 amJAX - STL
1 stop4h 36mDelta
Deal found 1/5![Delta logo]()
$277
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 January 6, 2026.
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
Wed 4/1
2:25 pm-9:55 pm
1 stop6h 30m
Jacksonville
Mon 4/6
6:15 am-7:35 am
Nonstop2h 20m
$272
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Wed 2/18
7:10 am-12:17 pm
1 stop4h 07m
Jacksonville
Sun 2/22
5:30 am-9:06 am
1 stop4h 36m
$277
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Sat 2/21
10:11 am-2:49 pm
1 stop3h 38m
Jacksonville
Thu 2/26
1:24 pm-5:42 pm
1 stop5h 18m
$303
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Thu 2/19
6:47 pm-12:01 am
1 stop4h 14m
Jacksonville
Sun 2/22
5:30 am-9:06 am
1 stop4h 36m
$303
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Mon 2/16
6:06 am-1:49 pm
1 stop6h 43m
Jacksonville
Sat 2/21
8:05 am-1:21 pm
1 stop6h 16m
$304
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Thu 3/12
5:45 am-2:40 pm
1 stop7h 55m
Jacksonville
Tue 3/17
4:40 pm-10:15 pm
1 stop6h 35m
$310
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Thu 3/5
6:47 pm-12:01 am
1 stop4h 14m
Jacksonville
Thu 3/12
5:30 am-9:05 am
1 stop4h 35m
$317
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Tue 3/24
7:03 am-12:05 pm
1 stop4h 02m
Jacksonville
Thu 3/26
5:30 am-9:05 am
1 stop4h 35m
$317
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Thu 2/12
6:00 am-12:17 pm
1 stop5h 17m
Jacksonville
Tue 2/17
7:04 pm-11:36 pm
1 stop5h 32m
$317
St. LouisJacksonville
STL - JAX
STLJAX
Lambert-St Louis
Tue 3/3
5:00 pm-10:58 pm
1 stop4h 58m
$119
Showing 1-10 of 17 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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 January 2, 2026.
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 76 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, October is the cheapest month in which you can book a flight from St. Louis to Jacksonville (average of $163). Flying from St. Louis to Jacksonville in December is currently the most expensive (average of $239). 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 January 6, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Jacksonville in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at noon.
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
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 January 6, 2026.
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.
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
Orange Park
Fernandina Beach
Kingsland
Waycross
Yulee
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Alternative routes for St. Louis to Jacksonville
See prices for flight routes from nearby airports that may be better suited for you.
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 January 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$303 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$186 | Average$289 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$214 | Average$316 | FlexibilityNo cancel fee | On-time63% |