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1,213 km · Domestic

Jacksonville (JAX) – St. Louis Lambert (STL)

In July 2026, 77 flights operated between Jacksonville and St. Louis Lambert (both directions), and 59.7% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January2136▲ 71.4%
February3438▲ 11.8%
March6663▼ 4.5%
April10174▼ 26.7%
May11282▼ 26.8%
June12076▼ 36.7%
July12477▼ 37.9%
August114––
September112––
October114–in progress
November108––
December116––
Year to date (Jan–Jul)578446▼ 22.8%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January71.4%72.2%▲ 1.1%
February82.4%94.7%▲ 14.9%
March87.9%73.0%▼ 17.0%
April86.1%79.7%▼ 7.4%
May79.5%76.8%▼ 3.4%
June77.5%68.4%▼ 11.7%
July75.8%59.7%▼ 21.2%
August81.6%––
September83.9%––
October79.8%–in progress
November87.0%––
December85.3%––
Year-to-date average (Jan–Jul)80.1%74.9%▼ 6.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January10▼ 100.0%
February00–
March03–
April00–
May20▼ 100.0%
June00–
July01–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)34▲ 33.3%

By direction

JAX → STL

Scheduled flights
877
Flights operated
872
Cancelled
5 · 0.6%
On-time departures
81.1%

STL → JAX

Scheduled flights
876
Flights operated
874
Cancelled
2 · 0.2%
On-time departures
78.8%

JAX → STL and STL → JAX counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,753 100.0% 80.0% 7

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay07:00–08:000.4min · 215 recorded · 215 measured
Gap to highest-delay hour20.9min07:00 ↔ 19:00
Recorded flights1,753JAX–STL

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 75 recorded · 73 measured · Source: the US BTS 07:00 · 97.7% · 215 recorded · 215 measured · Source: the US BTS 08:00 · 88.8% · 323 recorded · 322 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 49 recorded · 49 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 46 recorded · 46 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 59 recorded · 59 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 54 recorded · 54 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 141 recorded · 141 measured · Source: the US BTS 19:00 · 65.5% · 255 recorded · 252 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 75 recorded · 73 measured · Source: the US BTS 07:00 · 0.4 min · 215 recorded · 215 measured · Source: the US BTS 08:00 · 2.2 min · 323 recorded · 322 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 49 recorded · 49 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 46 recorded · 46 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 59 recorded · 59 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 54 recorded · 54 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 141 recorded · 141 measured · Source: the US BTS 19:00 · 21.3 min · 255 recorded · 252 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 6 · 6 recorded · 6 measured · Source: the US BTS 06:00 · 75 · 75 recorded · 73 measured · Source: the US BTS 07:00 · 215 · 215 recorded · 215 measured · Source: the US BTS 08:00 · 323 · 323 recorded · 322 measured · Source: the US BTS 09:00 · 49 · 49 recorded · 49 measured · Source: the US BTS 10:00 · 105 · 105 recorded · 105 measured · Source: the US BTS 11:00 · 82 · 82 recorded · 82 measured · Source: the US BTS 12:00 · 46 · 46 recorded · 46 measured · Source: the US BTS 13:00 · 59 · 59 recorded · 59 measured · Source: the US BTS 14:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 15:00 · 54 · 54 recorded · 54 measured · Source: the US BTS 16:00 · 43 · 43 recorded · 43 measured · Source: the US BTS 17:00 · 64 · 64 recorded · 63 measured · Source: the US BTS 18:00 · 141 · 141 recorded · 141 measured · Source: the US BTS 19:00 · 255 · 255 recorded · 252 measured · Source: the US BTS 20:00 · 172 · 172 recorded · 172 measured · Source: the US BTS 21:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—66
06:00Fewer than 200 measured departures—7375
07:0097.7%0.4 min215215
08:0088.8%2.2 min322323
09:00Fewer than 200 measured departures—4949
10:00Fewer than 200 measured departures—105105
11:00Fewer than 200 measured departures—8282
12:00Fewer than 200 measured departures—4646
13:00Fewer than 200 measured departures—5959
14:00Fewer than 200 measured departures—4242
15:00Fewer than 200 measured departures—5454
16:00Fewer than 200 measured departures—4343
17:00Fewer than 200 measured departures—6364
18:00Fewer than 200 measured departures—141141
19:0065.5%21.3 min252255
20:00Fewer than 200 measured departures—172172
21:00Fewer than 200 measured departures—2222
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 74.5% · 254 recorded · 251 measured · Source: the US BTS Tuesday · 88.7% · 233 recorded · 231 measured · Source: the US BTS Wednesday · 83.5% · 230 recorded · 230 measured · Source: the US BTS Thursday · 81.2% · 250 recorded · 250 measured · Source: the US BTS Friday · 79.6% · 252 recorded · 250 measured · Source: the US BTS Saturday · 81.7% · 240 recorded · 240 measured · Source: the US BTS Sunday · 72.8% · 294 recorded · 294 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 13.8 min · 254 recorded · 251 measured · Source: the US BTS Tuesday · 4.2 min · 233 recorded · 231 measured · Source: the US BTS Wednesday · 6.8 min · 230 recorded · 230 measured · Source: the US BTS Thursday · 9.7 min · 250 recorded · 250 measured · Source: the US BTS Friday · 11.7 min · 252 recorded · 250 measured · Source: the US BTS Saturday · 12.0 min · 240 recorded · 240 measured · Source: the US BTS Sunday · 12.9 min · 294 recorded · 294 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 254 · 254 recorded · 251 measured · Source: the US BTS Tuesday · 233 · 233 recorded · 231 measured · Source: the US BTS Wednesday · 230 · 230 recorded · 230 measured · Source: the US BTS Thursday · 250 · 250 recorded · 250 measured · Source: the US BTS Friday · 252 · 252 recorded · 250 measured · Source: the US BTS Saturday · 240 · 240 recorded · 240 measured · Source: the US BTS Sunday · 294 · 294 recorded · 294 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday74.5%13.8 min251254
Tuesday88.7%4.2 min231233
Wednesday83.5%6.8 min230230
Thursday81.2%9.7 min250250
Friday79.6%11.7 min250252
Saturday81.7%12.0 min240240
Sunday72.8%12.9 min294294

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 58 recorded · 57 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 132 recorded · 129 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS May · Fewer than 200 measured departures · 196 recorded · 194 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 196 recorded · 196 measured · Source: the US BTS Jul · 69.7% · 202 recorded · 201 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 114 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 174 recorded · 174 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 58 recorded · 57 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 132 recorded · 129 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS May · Fewer than 200 measured departures · 196 recorded · 194 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 196 recorded · 196 measured · Source: the US BTS Jul · 19.7 min · 202 recorded · 201 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 114 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 174 recorded · 174 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 58 · 58 recorded · 57 measured · Source: the US BTS Feb · 72 · 72 recorded · 72 measured · Source: the US BTS Mar · 132 · 132 recorded · 129 measured · Source: the US BTS Apr · 175 · 175 recorded · 175 measured · Source: the US BTS May · 196 · 196 recorded · 194 measured · Source: the US BTS Jun · 196 · 196 recorded · 196 measured · Source: the US BTS Jul · 202 · 202 recorded · 201 measured · Source: the US BTS Aug · 114 · 114 recorded · 114 measured · Source: the US BTS Sep · 112 · 112 recorded · 112 measured · Source: the US BTS Oct · 160 · 160 recorded · 160 measured · Source: the US BTS Nov · 162 · 162 recorded · 162 measured · Source: the US BTS Dec · 174 · 174 recorded · 174 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—5758
FebFewer than 200 measured departures—7272
MarFewer than 200 measured departures—129132
AprFewer than 200 measured departures—175175
MayFewer than 200 measured departures—194196
JunFewer than 200 measured departures—196196
Jul69.7%19.7 min201202
AugFewer than 200 measured departures—114114
SepFewer than 200 measured departures—112112
OctFewer than 200 measured departures—160160
NovFewer than 200 measured departures—162162
DecFewer than 200 measured departures—174174

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 79.6% 1,396
  • Delayed >15 min 20.0% 350
  • Cancelled 0.4% 7
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

25
25 of 25
Flight numbersBy direction DeparturesOn time
WN2151 JAX → STL 82 79.0%
WN1417 STL → JAX 73 80.8%
WN3826 STL → JAX 64 85.9%
WN157 JAX → STL 61 70.5%
WN3185 JAX → STL 61 82.0%
WN375 STL → JAX 61 82.0%
WN3094 JAX → STL 60 78.3%
WN1659 STL → JAX 58 74.1%
WN2089 JAX → STL 58 93.1%
WN2519 JAX → STL 58 89.7%
WN3524 JAX → STL 58 91.4%
WN1454 STL → JAX 57 80.4%
WN340 STL → JAX 57 82.5%
WN2683 STL → JAX 55 78.2%
WN191 JAX → STL 50 67.4%
WN813 STL → JAX 50 78.0%
WN1859 JAX → STL 49 77.6%
WN995 STL → JAX 49 83.7%
WN1377 JAX → STL 46 95.7%
WN4670 STL → JAX 45 66.7%
WN449 JAX → STL 41 31.7%
WN3933 STL → JAX 34 67.7%
WN3086 JAX → STL 33 83.9%
WN3627 STL → JAX 33 65.6%
WN2217 JAX → STL 31 96.8%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 77 −37.9% 1 59.7%
June 2026 76 −36.7% 0 68.4%
May 2026 82 −26.8% 0 76.8%
April 2026 74 −26.7% 0 79.7%
March 2026 63 −4.5% 3 73.0%
February 2026 38 +11.8% 0 94.7%
January 2026 36 +71.4% 0 72.2%
December 2025 116 +100.0% 0 85.3%
November 2025 108 +100.0% 0 87.0%
October 2025 114 +147.8% 0 79.8%
September 2025 112 0 83.9%
August 2025 114 0 81.6%
July 2025 124 0 75.8%
June 2025 120 0 77.5%
May 2025 112 2 79.5%
April 2025 101 0 86.1%
March 2025 66 0 87.9%
February 2025 34 0 82.4%
January 2025 21 1 71.4%
December 2024 58 0 79.3%
November 2024 54 0 85.2%
October 2024 46 0 89.1%

How to read this chart

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