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Route · STL → JAX · 2020–2025 BTS data

St. Louis to Jacksonville

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), STL to JAX (St. Louis to Jacksonville) ranks #4151 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.2%
On-time
+1.2 pts
vs US avg
56 min
Delay when late
1,498
Flights
#4151 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Nov 2025 87%

Worst Month

Jul 2025 74%

Distance

753 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 58 10 0 0 WN
Nov 2025 54 7 0 0 WN
Oct 2025 57 14 0 0 WN
Sep 2025 56 11 0 0 WN
Aug 2025 57 10 0 0 WN
Jul 2025 62 16 0 0 WN
Jun 2025 60 14 0 0 WN
May 2025 57 14 1 0 WN
Apr 2025 50 10 0 0 WN
Mar 2025 33 4 0 0 WN
Oct 2024 35 1 0 0 WN
Sep 2024 34 5 1 0 WN
Aug 2024 35 6 1 0 WN
Jul 2024 35 8 0 1 WN
Jun 2024 34 7 0 0 WN
May 2024 31 3 0 0 WN
Apr 2024 31 6 0 0 WN
Mar 2024 34 2 1 0 WN
Oct 2023 31 4 0 0 WN
Sep 2023 31 4 0 0 WN
Aug 2023 35 5 1 0 WN
Jul 2023 36 14 0 0 WN
Jun 2023 31 9 0 0 WN
Dec 2022 31 7 6 0 WN

STL–JAX seasonal on-time pattern

Best: March (86.7%) · weakest: July (69.7%)

65%70%75%80%85%90% JanMarAprMayJunJulAugSepOctNovDec 79.2%

Strongest calendar month

March

86.7% on-time · ~33 flights/mo

Busiest calendar month

May

~40 flights/mo avg

Weakest calendar month

July

69.7% on-time · ~39 flights/mo

Cancellation Rate

1.1%

11 of 1,008 flights

Diversion Rate

0.1%

1 of 1,008 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

STL - St. Louis

Full on-time, delay-cause, and seasonal performance for St. Louis, MO.

STL on-time profile

JAX - Jacksonville

Full on-time, delay-cause, and seasonal performance for Jacksonville, FL.

JAX on-time profile

Compare the two airports

See STL and JAX side by side on delays, cancellations, and reliability.

Compare STL vs JAX

Origin-hub reliability standing

Mid-pack among STL departures

From STL, this corridor sits with 45 other 75–85% on-time routes out of 51 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 1 below 75%). Destination: Jacksonville · fleet on-time rank #3085 of 4927.

What the Data Says About STL to JAX

1,498 tracked flights put the STL to JAX pairing (St. Louis to Jacksonville) at a 80.2% on-time rate, squarely in line with the wider network. Delays that do occur run 56.4 minutes on average. Across the 753-mile route and its 1 carrier, the trailing 24 months show 1.1% cancelled and 0.1% diverted (1,008 flights sampled).

Monthly performance varies moderately here: Nov 2025 was the strongest month at 87% on-time versus Jul 2025 at 74%, a 13-point difference.

On the multi-year calendar, STL–JAX peaks in March at 86.7% on-time while May carries the heaviest traffic (~40 flights per month) ; the softest month is July at 69.7%, a 17.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does STL to JAX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, STL to JAX ranks #4151 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from STL to JAX? ▼
Flights from St. Louis to Jacksonville have a 80.2% on-time rate based on 1,498 flights. The average delay is 56.4 minutes. The best recent month was Nov 2025 with 87% on-time.
What is the cancellation rate for STL to JAX? ▼
Over the last 24 months, 1.1% of flights on this route were cancelled (11 of 1,008 flights) and 0.1% were diverted.
How far is the flight from STL to JAX? ▼
The flight distance from St. Louis (STL) to Jacksonville (JAX) is approximately 753 miles. This route is served by 1 carrier.
When is the best time to fly from STL to JAX? ▼
The best recent month for on-time performance was Nov 2025 (87% on-time). The worst was Jul 2025 (74% on-time). Consider booking during months with historically better performance.

Airports on this route

STL Airport

St. Louis
JAX Airport

Jacksonville
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using STL–JAX data

STL–JAX is mid-pack at 80.2% on-time; month and carrier mix move more than the corridor headline.

  • Compare STL and JAX airport profiles: delay causes and top routes differ even on the same corridor. STL airport
  • If your dates flex, March (86.7% on-time) beats July (69.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.