Jacksonville (JAX) to St Louis (STL)
Flight time
≈ 2h 18m
Bearing
322° NW
Jacksonville (JAX) to St Louis (STL) is 754 miles (1,213 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies JAX–STL
Filed traffic dataIn May 2026, Southwest Airlines was the only carrier flying nonstop JAX–STL; the Boeing 737 MAX 8 was the most common aircraft at 38% of departures; flights ran 69% full.
Departures
82
May 2026
Seats
13,286
both directions
Passengers
9,146
both directions
Load factor
68.8%
RPM ÷ ASM
Who flies JAX–STL?
Southwest Airlines was the only carrier to fly nonstop JAX–STL in May 2026 (82 departures).
- WN
82 departures · 13,286 seats
Share of departures100.0%68.8%
Load
What plane flies JAX–STL?
In May 2026, the Boeing 737 MAX 8 flew 38% of JAX–STL departures — more than any other aircraft type.
- Boeing 737 MAX 8
31 departures · 72.7% load
37.8% - Boeing 737-700
28 departures · 71.4% load
34.2% - Boeing 737-800
23 departures · 61.2% load
28.1%
How has JAX–STL traffic changed?
Nonstop JAX–STL departures fell from 120 in June 2025 to 82 in May 2026.
Monthly nonstop JAX–STL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
120 departures · 13,005 passengers
68.3%
Load
July 2025
124 departures · 13,177 passengers
67.4%
Load
August 2025
115 departures · 11,658 passengers
63.6%
Load
September 2025
112 departures · 11,508 passengers
64.6%
Load
October 2025
114 departures · 12,619 passengers
70.9%
Load
November 2025
108 departures · 11,627 passengers
70.3%
Load
December 2025
118 departures · 12,886 passengers
68.1%
Load
January 2026
37 departures · 3,803 passengers
62.0%
Load
February 2026
40 departures · 3,962 passengers
62.0%
Load
March 2026
63 departures · 6,913 passengers
66.4%
Load
April 2026
73 departures · 7,396 passengers
62.2%
Load
May 2026
82 departures · 9,146 passengers
68.8%
Load
By direction
Each direction is filed separately — they rarely match.
JAX → STL
64.6% full
41 departures · 4,416 passengers
STL → JAX
73.3% full
41 departures · 4,730 passengers
Nonstop JAX–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Jacksonville (JAX) from St Louis (STL)?
JAX to STL is 754 miles (1,213 km / 655 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from JAX to STL?
A nonstop covers the 754-mile great-circle distance in roughly 2h 18m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies JAX–STL?
In May 2026, the Boeing 737 MAX 8 flew the largest share of departures (37.8%), followed by the Boeing 737-700 (34.2%).
What mileage do I earn flying JAX–STL?
Distance-based programs credit off the 754-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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