Jacksonville International Airport
Jacksonville, United StatesJAX / KJAX
Major airport · 85 direct destinations · 2 runways · longest runway 10,000 ft
86 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Jacksonville → St. Louis
JAX
JacksonvilleJacksonville International Airport
JacksonvilleJacksonville International AirportSTLSt. LouisSt. Louis Lambert International Airport
St. LouisSt. Louis Lambert International Airport- Distance
- 754 mi
- Estimated flight time
- ~2h
St. Louis is currently 1 hour behind Jacksonville.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 2
- busiest month · Oct
- 1
- quietest month · Jan
- 1 hr 48 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 1Sep
- 2Oct2025
- 2Nov
- 2Dec
Airlines
Who flies it
Southwest Airlinesall year
Through the day
Departure times
Local time in Jacksonville. Most departures between 06:00 and 09:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 1.2Mon
- 0.9Tue
- 1Wed
- 0.8Thu
- 0.9Fri
- 1.3Sat
- 1.1Sun
Fleet
Aircraft observed
- Boeing 737-700B73740%
- Boeing 737 MAX 8B38M33%
- Boeing 737-800B73825%
- Cessna Citation LatitudeC68A1%
- Bombardier Challenger 350CL351%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 16 |
|
| February 2026 | 1 | 17 |
|
| March 2026 | 1 | 31 |
|
| April 2026 | 1 | 31 |
|
| May 2026 | 1 | 24 |
|
| June 2026 | 1 | 29 |
|
| July 2026 | 1 | 24 |
|
| August 2026 | 1 | 23 |
|
| September 2026 | 1 | 32 |
|
| October 2025 | 2 | 53 |
|
| November 2025 | 2 | 47 |
|
| December 2025 | 2 | 45 |
|
Airlines observed on this route
From observed callsign routes on JAX-STL - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Jacksonville: 85.
- Direct destinations observed from St. Louis: 88.
The airports on this route
St. Louis Lambert International Airport
St. Louis, United StatesSTL / KSTL
Major airport · 88 direct destinations · 4 runways · longest runway 11,020 ft
54 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Jacksonville to St. Louis
The observed direct connection between Jacksonville International Airport (JAX) and St. Louis Lambert International Airport (STL) covers approximately 754 mi. The estimated flight time is around 2h. Southwest Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Jacksonville from St. Louis by air?
- The great-circle distance between Jacksonville International Airport and St. Louis Lambert International Airport is approximately 754 mi.
- How long is the flight from Jacksonville to St. Louis?
- Based on the distance, the estimated flight time is about 2h. This is an estimate, not a schedule.
- Is there a direct connection from Jacksonville to St. Louis?
- Yes, a direct connection between JAX and STL has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Southwest Airlines.
- How often is there a flight from Jacksonville to St. Louis?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 372 observed flights. Mainly Southwest Airlines. That is an observation, not a timetable.
- What is the current time difference between Jacksonville and St. Louis?
- St. Louis is currently 1 hour behind Jacksonville.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.