JAX offers quick screening times at TSA and easy check-in, making it convenient for early morning departures.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $233 (Delta) |
One-way from | $90 (Trip.com) |
Popular in | March |
Cheapest in | July |
Average price | $401 |
Good round-trip deal | $327 or less |
Good one-way deal | $173 or less |
Fly from
Fly to
Route
Depart
Return
Price
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/17
5:35 pm-9:57 pm
1 stop5h 22m
Lambert-St Louis
Thu 12/18
7:05 am-1:45 pm
1 stop5h 40m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/24
1:44 pm-7:04 pm
1 stop6h 20m
Lambert-St Louis
Mon 12/29
7:02 pm-11:56 pm
1 stop3h 54m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/24
3:12 pm-10:16 pm
1 stop8h 04m
Lambert-St Louis
Sun 1/4
5:13 pm-10:44 pm
1 stop4h 31m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/17
5:35 pm-9:57 pm
1 stop5h 22m
Lambert-St Louis
Fri 12/19
6:00 am-12:07 pm
1 stop5h 07m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Mon 2/23
6:00 pm-9:45 pm
1 stop4h 45m
Lambert-St Louis
Wed 2/25
11:25 am-9:15 pm
2 stops8h 50m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Fri 2/20
7:50 am-9:10 am
Nonstop2h 20m
Lambert-St Louis
Wed 2/25
8:15 am-12:55 pm
1 stop3h 40m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/17
5:35 pm-9:57 pm
1 stop5h 22m
Lambert-St Louis
Wed 12/24
5:13 pm-11:56 pm
1 stop5h 43m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/31
12:50 pm-4:00 pm
1 stop4h 10m
Lambert-St Louis
Thu 1/1
5:30 am-11:56 am
1 stop5h 26m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Thu 1/15
6:35 am-2:30 pm
2 stops8h 55m
Lambert-St Louis
Mon 1/19
11:20 am-10:52 pm
2 stops10h 32m
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 12/24
8:15 am-9:35 am
Nonstop2h 20m
Lambert-St Louis
Mon 12/29
9:00 pm-11:55 pm
Nonstop1h 55m
| 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 |
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.
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 November is currently the most expensive (average of $264). 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.
When flying from Jacksonville to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 14% versus a flight at noon.
Travelers seeking maximum savings on their Jacksonville to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Food
Overall
Comfort
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Food
Overall
Comfort
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Food
Overall
Comfort
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Food
Overall
Comfort
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$280 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$214 | Average$311 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$218 | Average$318 | FlexibilityNo cancel fee | On-time71% |