Jacksonville (JAX) to St Louis (STL)

754mi
1,213 km655 nm

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.

Route map: JAX → STLJAXSTL

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What actually flies JAX–STL

Filed traffic data

In July 2026, Southwest Airlines operated the most departures, one of 2 carriers flying nonstop JAX–STL; the Boeing 737 MAX 8 was the most common aircraft at 49% of departures; flights ran 78% full.

Departures

78

July 2026

Seats

12,829

both directions

Passengers

9,967

both directions

Load factor

77.7%

RPM ÷ ASM

Who flies JAX–STL?

Southwest Airlines operated the most nonstop JAX–STL departures in July 2026 (77), one of 2 carriers on the route.

What plane flies JAX–STL?

In July 2026, the Boeing 737 MAX 8 flew 49% of JAX–STL departures — more than any other aircraft type.

How has JAX–STL traffic changed?

Nonstop JAX–STL departures fell from 115 in August 2025 to 78 in July 2026.

Monthly nonstop JAX–STL traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • 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

  • June 2026

    76 departures · 9,920 passengers

    79.3%

    Load

  • July 2026

    78 departures · 9,967 passengers

    77.7%

    Load

By direction

Each direction is filed separately — they rarely match.

JAX → STL

74.2% full

39 departures · 4,654 passengers

STL → JAX

81.0% full

39 departures · 5,313 passengers

Nonstop JAX–STL traffic has been filed since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).

The airports

JAX

Jacksonville

US

Jacksonville International Airport

Coordinates

30.49°N, 81.69°W

Hemisphere

N · W

STL

St Louis

US

St. Louis Lambert International Airport

Coordinates

38.75°N, 90.37°W

Hemisphere

N · W

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 July 2026, the Boeing 737 MAX 8 flew the largest share of departures (48.7%), followed by the Boeing 737-800 (25.6%).

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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