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$68+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — STL
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheapflights Tip: The best prices from Jacksonville to Lambert-St Louis are usually found in July or August, booked 88 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Jacksonville to St. Louis

Cheapest flights from Jacksonville to St. Louis
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 February 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/118:18 pm
JAX
-
STL
2 stops36h 04m
Frontier
Wed 3/1811:32 am
STL
-
JAX
1 stop7h 01m
Frontier
Deal found 2/11$177
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/178:17 pm
JAX
-
STL
1 stop11h 33m
Frontier
Sun 4/1911:21 am
STL
-
JAX
1 stop4h 52m
Frontier
Deal found 2/9$194
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/236:08 pm
JAX
-
STL
1 stop13h 42m
Frontier
Sun 4/2611:21 am
STL
-
JAX
1 stop4h 52m
Frontier
Deal found 2/11$204
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 5/410:12 pm
JAX
-
STL
2 stops33h 38m
Frontier
Wed 5/138:13 pm
STL
-
JAX
1 stop20h 00m
Frontier
Deal found 2/10$230
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sun 3/84:39 pm
JAX
-
STL
1 stop21h 40m
Frontier
Fri 3/1312:16 pm
STL
-
JAX
2 stops25h 58m
Frontier
Deal found 2/9$280
This Southwest deal was found by Cheapflights users on 2/11. 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 3/77:15 pm
JAX
-
STL
Nonstop2h 25m
Southwest
Tue 3/107:15 pm
STL
-
JAX
Nonstop2h 00m
Southwest
Deal found 2/11$284
This Southwest deal was found by Cheapflights users on 2/11. 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 3/316:25 am
JAX
-
STL
Nonstop2h 20m
Southwest
Sat 5/26:20 am
STL
-
JAX
1 stop6h 50m
Southwest
Deal found 2/11$288
This Southwest deal was found by Cheapflights users on 2/8. 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.
Mon 3/96:15 am
JAX
-
STL
Nonstop2h 20m
Southwest
Mon 3/167:45 pm
STL
-
JAX
Nonstop2h 00m
Southwest
Deal found 2/8$291
This Southwest deal was found by Cheapflights users on 2/10. 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 5/43:35 pm
JAX
-
STL
Nonstop2h 15m
Southwest
Wed 5/132:30 pm
STL
-
JAX
1 stop6h 00m
Southwest
Deal found 2/10$294
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:12 pm
JAX
-
STL
1 stop11h 39m
Frontier
Sun 3/110:11 pm
STL
-
JAX
2 stops19h 33m
Frontier
Deal found 2/9$295
This Southwest deal was found by Cheapflights users on 2/11. 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 3/115:55 pm
JAX
-
STL
1 stop5h 25m
Southwest
Wed 3/1812:20 pm
STL
-
JAX
1 stop4h 45m
Southwest
Deal found 2/11$297

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Kiwi.com)

One-way from

$68
(Trip.com)

Popular in

March

Cheapest in

July

Average price

$376

Good round-trip deal

$329 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Jacksonville-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Jacksonville-Lambert-St Louis flights.
Search Deals
From Jacksonville to Lambert-St Louis
Search Deals
One-way flight from Jacksonville to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Jacksonville to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Jacksonville to Lambert-St Louis.
Search Deals

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 February 12, 2026.
Use the filters below to find and compare flights from Jacksonville to St. Louis that are best for you.

Fly from

Jacksonville

Fly to

St. Louis

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 3/11

8:18 pm-7:22 am

2 stops36h 04m

Lambert-St Louis

Wed 3/18

11:32 am-7:33 pm

1 stop7h 01m

$177

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sun 3/8

4:39 pm-1:19 pm

1 stop21h 40m

Lambert-St Louis

Fri 3/13

12:16 pm-3:14 pm

2 stops25h 58m

$280

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 5/4

3:35 pm-4:50 pm

Nonstop2h 15m

Lambert-St Louis

Tue 5/12

10:15 am-1:15 pm

Nonstop2h 00m

$284

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Sat 3/7

7:15 pm-8:40 pm

Nonstop2h 25m

Lambert-St Louis

Tue 3/10

7:15 pm-10:15 pm

Nonstop2h 00m

$284

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Tue 3/31

6:25 am-7:45 am

Nonstop2h 20m

Lambert-St Louis

Sat 5/2

6:20 am-2:10 pm

1 stop6h 50m

$288

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 3/9

6:15 am-7:35 am

Nonstop2h 20m

Lambert-St Louis

Mon 3/16

7:45 pm-10:45 pm

Nonstop2h 00m

$291

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 3/11

6:25 am-7:45 am

Nonstop2h 20m

Lambert-St Louis

Wed 3/18

7:15 pm-10:15 pm

Nonstop2h 00m

$291

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 5/4

3:35 pm-4:50 pm

Nonstop2h 15m

Lambert-St Louis

Tue 5/5

1:45 pm-9:15 pm

1 stop6h 30m

$294

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Mon 5/4

3:35 pm-4:50 pm

Nonstop2h 15m

Lambert-St Louis

Wed 5/13

2:30 pm-9:30 pm

1 stop6h 00m

$294

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Thu 3/12

4:29 pm-1:34 pm

1 stop22h 05m

$68

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 20 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

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

  • Most accurate provider: When it comes to deals on 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.
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 February 6, 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, April is the cheapest month in which you can book a flight from Jacksonville to St. Louis (average of $139). Flying from Jacksonville to St. Louis in January is currently the most expensive (average of $262). 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 February 12, 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 afternoon, which can drop the price by up to 17% 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 February 7, 2026.

Travelers seeking maximum savings on their Jacksonville to St. Louis flight should consider departing on Thursday evenings 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
Matt Meltzer

Matt Meltzer

Expert on JAX

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Reviews of airlines servicing 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 February 12, 2026.
Read through reviews of airlines operating flights from Jacksonville to St. Louis, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,180 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,271 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

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

    The Jacksonville to Lambert-St Louis flight path was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Frontier and Southwest can get you from Jacksonville to St. Louis in just under 2h 15m. Your travel time can differ by up to 33h 49m. There are 753 mi between Jacksonville and St. Louis. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Delta, at $176, was found to be the cheapest airline from Jacksonville to St. Louis.Alternate airlines to your destination round-trip include Southwest and American Airlines. Delta is 46% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Jacksonville to St. Louis one-way?

    The cheapest airlines for a one-way flight from Jacksonville to St. Louis are United Airlines ($75), Southwest ($101), and American Airlines ($109).

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

    On average you can expect to pay $358 for a flight from Jacksonville to St. Louis. The cheapest flight overall is $168 while the most popular route, (Jacksonville - Lambert-St Louis) is currently priced at $235.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Jacksonville to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, April is the cheapest month in which you can book a flight from Jacksonville to St. Louis (average of $139). Flying from Jacksonville to St. Louis in January is currently the most expensive (average of $262). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Jacksonville to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$176Average$298FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$311FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$288FlexibilityNo cancel feeOn-time71%

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