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437 km · Domestic

Nashville (BNA) – St. Louis Lambert (STL)

In July 2026, 223 flights operated between Nashville and St. Louis Lambert (both directions), and 60.5% 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
January164185▲ 12.8%
February164190▲ 15.9%
March211215▲ 1.9%
April239222▼ 7.1%
May252226▼ 10.3%
June203215▲ 5.9%
July199223▲ 12.1%
August216––
September216––
October238–in progress
November204––
December203––
Year to date (Jan–Jul)1,4321,476▲ 3.1%

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
January83.5%84.3%▲ 1.0%
February82.3%78.9%▼ 4.1%
March75.4%72.1%▼ 4.4%
April78.7%73.9%▼ 6.1%
May75.4%64.2%▼ 14.9%
June72.9%69.3%▼ 4.9%
July69.3%60.5%▼ 12.7%
August86.1%––
September88.4%––
October73.1%–in progress
November77.0%––
December76.4%––
Year-to-date average (Jan–Jul)76.8%71.9%▼ 6.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January178▼ 52.9%
February40▼ 100.0%
March25▲ 150.0%
April10▼ 100.0%
May52▼ 60.0%
June110.0%
July110.0%
August2––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)3117▼ 45.2%

By direction

BNA → STL

Scheduled flights
2,293
Flights operated
2,262
Cancelled
31 · 1.4%
On-time departures
74.5%

STL → BNA

Scheduled flights
2,284
Flights operated
2,264
Cancelled
20 · 0.9%
On-time departures
79.2%

BNA → STL and STL → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 4,577 100.0% 76.9% 51

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 delay06:00–07:00-3.0min · 360 recorded · 355 measured
Gap to highest-delay hour28.3min06:00 ↔ 19:00
Recorded flights4,577BNA–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 · 51 recorded · 51 measured · Source: the US BTS 06:00 · 96.1% · 360 recorded · 355 measured · Source: the US BTS 07:00 · 93.1% · 469 recorded · 462 measured · Source: the US BTS 08:00 · 93.9% · 299 recorded · 295 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 169 recorded · 163 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS 11:00 · 82.3% · 327 recorded · 322 measured · Source: the US BTS 12:00 · 80.4% · 252 recorded · 250 measured · Source: the US BTS 13:00 · 72.7% · 256 recorded · 253 measured · Source: the US BTS 14:00 · 70.7% · 287 recorded · 283 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 144 recorded · 144 measured · Source: the US BTS 16:00 · 67.2% · 209 recorded · 207 measured · Source: the US BTS 17:00 · 69.0% · 325 recorded · 323 measured · Source: the US BTS 18:00 · 60.6% · 328 recorded · 325 measured · Source: the US BTS 19:00 · 57.0% · 236 recorded · 235 measured · Source: the US BTS 20:00 · 70.7% · 311 recorded · 311 measured · Source: the US BTS 21:00 · 59.9% · 270 recorded · 267 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 156 recorded · 152 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 · 51 recorded · 51 measured · Source: the US BTS 06:00 · -3.0 min · 360 recorded · 355 measured · Source: the US BTS 07:00 · 1.0 min · 469 recorded · 462 measured · Source: the US BTS 08:00 · 0.6 min · 299 recorded · 295 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 169 recorded · 163 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS 11:00 · 8.2 min · 327 recorded · 322 measured · Source: the US BTS 12:00 · 10.0 min · 252 recorded · 250 measured · Source: the US BTS 13:00 · 10.9 min · 256 recorded · 253 measured · Source: the US BTS 14:00 · 14.4 min · 287 recorded · 283 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 144 recorded · 144 measured · Source: the US BTS 16:00 · 15.3 min · 209 recorded · 207 measured · Source: the US BTS 17:00 · 16.9 min · 325 recorded · 323 measured · Source: the US BTS 18:00 · 18.8 min · 328 recorded · 325 measured · Source: the US BTS 19:00 · 25.3 min · 236 recorded · 235 measured · Source: the US BTS 20:00 · 13.8 min · 311 recorded · 311 measured · Source: the US BTS 21:00 · 24.6 min · 270 recorded · 267 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 156 recorded · 152 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 · 51 · 51 recorded · 51 measured · Source: the US BTS 06:00 · 360 · 360 recorded · 355 measured · Source: the US BTS 07:00 · 469 · 469 recorded · 462 measured · Source: the US BTS 08:00 · 299 · 299 recorded · 295 measured · Source: the US BTS 09:00 · 169 · 169 recorded · 163 measured · Source: the US BTS 10:00 · 128 · 128 recorded · 128 measured · Source: the US BTS 11:00 · 327 · 327 recorded · 322 measured · Source: the US BTS 12:00 · 252 · 252 recorded · 250 measured · Source: the US BTS 13:00 · 256 · 256 recorded · 253 measured · Source: the US BTS 14:00 · 287 · 287 recorded · 283 measured · Source: the US BTS 15:00 · 144 · 144 recorded · 144 measured · Source: the US BTS 16:00 · 209 · 209 recorded · 207 measured · Source: the US BTS 17:00 · 325 · 325 recorded · 323 measured · Source: the US BTS 18:00 · 328 · 328 recorded · 325 measured · Source: the US BTS 19:00 · 236 · 236 recorded · 235 measured · Source: the US BTS 20:00 · 311 · 311 recorded · 311 measured · Source: the US BTS 21:00 · 270 · 270 recorded · 267 measured · Source: the US BTS 22:00 · 156 · 156 recorded · 152 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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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—5151
06:0096.1%-3.0 min355360
07:0093.1%1.0 min462469
08:0093.9%0.6 min295299
09:00Fewer than 200 measured departures—163169
10:00Fewer than 200 measured departures—128128
11:0082.3%8.2 min322327
12:0080.4%10.0 min250252
13:0072.7%10.9 min253256
14:0070.7%14.4 min283287
15:00Fewer than 200 measured departures—144144
16:0067.2%15.3 min207209
17:0069.0%16.9 min323325
18:0060.6%18.8 min325328
19:0057.0%25.3 min235236
20:0070.7%13.8 min311311
21:0059.9%24.6 min267270
22:00Fewer than 200 measured departures—152156
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 71.6% · 724 recorded · 714 measured · Source: the US BTS Tuesday · 82.4% · 671 recorded · 665 measured · Source: the US BTS Wednesday · 80.9% · 660 recorded · 655 measured · Source: the US BTS Thursday · 75.5% · 721 recorded · 718 measured · Source: the US BTS Friday · 75.7% · 733 recorded · 725 measured · Source: the US BTS Saturday · 81.1% · 445 recorded · 439 measured · Source: the US BTS Sunday · 72.6% · 623 recorded · 610 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 · 14.9 min · 724 recorded · 714 measured · Source: the US BTS Tuesday · 6.4 min · 671 recorded · 665 measured · Source: the US BTS Wednesday · 8.1 min · 660 recorded · 655 measured · Source: the US BTS Thursday · 12.2 min · 721 recorded · 718 measured · Source: the US BTS Friday · 12.2 min · 733 recorded · 725 measured · Source: the US BTS Saturday · 8.5 min · 445 recorded · 439 measured · Source: the US BTS Sunday · 12.3 min · 623 recorded · 610 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 · 724 · 724 recorded · 714 measured · Source: the US BTS Tuesday · 671 · 671 recorded · 665 measured · Source: the US BTS Wednesday · 660 · 660 recorded · 655 measured · Source: the US BTS Thursday · 721 · 721 recorded · 718 measured · Source: the US BTS Friday · 733 · 733 recorded · 725 measured · Source: the US BTS Saturday · 445 · 445 recorded · 439 measured · Source: the US BTS Sunday · 623 · 623 recorded · 610 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday71.6%14.9 min714724
Tuesday82.4%6.4 min665671
Wednesday80.9%8.1 min655660
Thursday75.5%12.2 min718721
Friday75.7%12.2 min725733
Saturday81.1%8.5 min439445
Sunday72.6%12.3 min610623

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 · 84.0% · 374 recorded · 349 measured · Source: the US BTS Feb · 80.5% · 358 recorded · 354 measured · Source: the US BTS Mar · 73.7% · 433 recorded · 426 measured · Source: the US BTS Apr · 76.4% · 462 recorded · 461 measured · Source: the US BTS May · 70.1% · 485 recorded · 478 measured · Source: the US BTS Jun · 71.1% · 420 recorded · 418 measured · Source: the US BTS Jul · 64.7% · 424 recorded · 422 measured · Source: the US BTS Aug · 86.1% · 218 recorded · 216 measured · Source: the US BTS Sep · 88.4% · 216 recorded · 216 measured · Source: the US BTS Oct · 78.4% · 389 recorded · 389 measured · Source: the US BTS Nov · 82.5% · 405 recorded · 405 measured · Source: the US BTS Dec · 80.1% · 393 recorded · 392 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 · 5.2 min · 374 recorded · 349 measured · Source: the US BTS Feb · 8.0 min · 358 recorded · 354 measured · Source: the US BTS Mar · 12.8 min · 433 recorded · 426 measured · Source: the US BTS Apr · 10.2 min · 462 recorded · 461 measured · Source: the US BTS May · 13.6 min · 485 recorded · 478 measured · Source: the US BTS Jun · 14.7 min · 420 recorded · 418 measured · Source: the US BTS Jul · 20.4 min · 424 recorded · 422 measured · Source: the US BTS Aug · 4.3 min · 218 recorded · 216 measured · Source: the US BTS Sep · 2.7 min · 216 recorded · 216 measured · Source: the US BTS Oct · 9.6 min · 389 recorded · 389 measured · Source: the US BTS Nov · 6.7 min · 405 recorded · 405 measured · Source: the US BTS Dec · 12.6 min · 393 recorded · 392 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 · 374 · 374 recorded · 349 measured · Source: the US BTS Feb · 358 · 358 recorded · 354 measured · Source: the US BTS Mar · 433 · 433 recorded · 426 measured · Source: the US BTS Apr · 462 · 462 recorded · 461 measured · Source: the US BTS May · 485 · 485 recorded · 478 measured · Source: the US BTS Jun · 420 · 420 recorded · 418 measured · Source: the US BTS Jul · 424 · 424 recorded · 422 measured · Source: the US BTS Aug · 218 · 218 recorded · 216 measured · Source: the US BTS Sep · 216 · 216 recorded · 216 measured · Source: the US BTS Oct · 389 · 389 recorded · 389 measured · Source: the US BTS Nov · 405 · 405 recorded · 405 measured · Source: the US BTS Dec · 393 · 393 recorded · 392 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.0%5.2 min349374
Feb80.5%8.0 min354358
Mar73.7%12.8 min426433
Apr76.4%10.2 min461462
May70.1%13.6 min478485
Jun71.1%14.7 min418420
Jul64.7%20.4 min422424
Aug86.1%4.3 min216218
Sep88.4%2.7 min216216
Oct78.4%9.6 min389389
Nov82.5%6.7 min405405
Dec80.1%12.6 min392393

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 76.0% 3,479
  • Delayed >15 min 22.9% 1,047
  • Cancelled 1.1% 51
  • 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

61
61 of 61
Flight numbersBy direction DeparturesOn time
WN3257 BNA → STL 117 78.1%
WN999 BNA → STL 114 93.5%
WN2004 STL → BNA 113 84.3%
WN2215 STL → BNA 92 73.3%
WN2320 STL → BNA 89 90.8%
WN4333 BNA → STL 73 83.6%
WN1328 STL → BNA 70 64.3%
WN920 BNA → STL 64 84.4%
WN1337 BNA → STL 61 86.9%
WN1654 STL → BNA 61 75.4%
WN1336 BNA → STL 58 87.9%
WN1499 STL → BNA 58 94.8%
WN1875 STL → BNA 58 89.7%
WN4148 STL → BNA 58 89.7%
WN4668 STL → BNA 58 94.8%
WN4682 STL → BNA 58 94.6%
WN679 BNA → STL 58 100.0%
WN813 BNA → STL 58 24.1%
WN2185 STL → BNA 57 82.5%
WN3618 BNA → STL 57 83.6%
WN1343 BNA → STL 56 85.5%
WN483 BNA → STL 51 68.6%
WN1371 BNA → STL 50 64.0%
WN2774 STL → BNA 50 88.0%
WN4107 BNA → STL 50 59.2%
WN682 BNA → STL 50 40.8%
WN982 STL → BNA 50 74.0%
WN2677 BNA → STL 49 91.7%
WN656 BNA → STL 49 85.7%
WN770 BNA → STL 49 40.8%
WN1766 STL → BNA 47 87.0%
WN2274 STL → BNA 47 89.1%
WN2573 BNA → STL 47 84.4%
WN2076 STL → BNA 46 91.3%
WN366 STL → BNA 45 90.9%
WN1352 BNA → STL 43 76.7%
WN4381 STL → BNA 43 88.4%
WN1345 BNA → STL 42 71.4%
WN2231 BNA → STL 42 73.8%
WN4380 STL → BNA 42 97.6%
WN482 STL → BNA 42 50.0%
WN706 BNA → STL 42 90.2%
WN806 BNA → STL 42 83.3%
WN3046 BNA → STL 41 78.1%
WN1037 STL → BNA 39 76.9%
WN1907 BNA → STL 37 77.8%
WN4650 BNA → STL 36 77.1%
WN819 STL → BNA 36 63.9%
WN1144 BNA → STL 35 52.9%
WN3888 STL → BNA 34 73.5%
WN694 STL → BNA 34 50.0%
WN1306 STL → BNA 33 81.8%
WN3182 STL → BNA 33 62.5%
WN3818 BNA → STL 33 97.0%
WN4404 BNA → STL 33 69.7%
WN3456 STL → BNA 32 90.6%
WN1403 BNA → STL 31 87.1%
WN1408 BNA → STL 31 58.1%
WN1415 STL → BNA 31 93.6%
WN464 STL → BNA 31 90.3%
WN1406 BNA → STL 30 56.7%

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 223 +12.1% 1 60.5%
June 2026 215 +5.9% 1 69.3%
May 2026 226 −10.3% 2 64.2%
April 2026 222 −7.1% 0 73.9%
March 2026 215 +1.9% 5 72.1%
February 2026 190 +15.9% 0 78.9%
January 2026 185 +12.8% 8 84.3%
December 2025 203 +7.4% 1 76.4%
November 2025 204 +1.5% 0 77.0%
October 2025 238 +57.6% 0 73.1%
September 2025 216 0 88.4%
August 2025 216 2 86.1%
July 2025 199 1 69.3%
June 2025 203 1 72.9%
May 2025 252 5 75.4%
April 2025 239 1 78.7%
March 2025 211 2 75.4%
February 2025 164 4 82.3%
January 2025 164 17 83.5%
December 2024 189 0 84.1%
November 2024 201 0 88.1%
October 2024 151 0 86.8%

How to read this chart

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