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636 km · Domestic

Nashville (BNA) – Chicago Midway (MDW)

In July 2026, 333 flights operated between Nashville and Chicago Midway (both directions), and 51.7% 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
January252248▼ 1.6%
February236238▲ 0.8%
March316320▲ 1.3%
April328326▼ 0.6%
May339343▲ 1.2%
June342302▼ 11.7%
July345333▼ 3.5%
August333––
September318––
October339–in progress
November308––
December304––
Year to date (Jan–Jul)2,1582,110▼ 2.2%

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
January85.7%86.3%▲ 0.7%
February87.7%84.5%▼ 3.6%
March82.9%68.8%▼ 17.0%
April83.8%72.1%▼ 14.0%
May78.2%60.6%▼ 22.5%
June70.2%60.6%▼ 13.7%
July62.9%51.7%▼ 17.8%
August69.1%––
September84.3%––
October72.0%–in progress
November79.9%––
December74.3%––
Year-to-date average (Jan–Jul)78.8%69.2%▼ 12.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January1215▲ 25.0%
February31▼ 66.7%
March28▲ 300.0%
April06–
May00–
June16▲ 500.0%
July52▼ 60.0%
August3––
September0––
October0–in progress
November10––
December0––
Year to date (Jan–Jul)2338▲ 65.2%

By direction

BNA → MDW

Scheduled flights
3,429
Flights operated
3,390
Cancelled
39 · 1.1%
On-time departures
72.1%

MDW → BNA

Scheduled flights
3,412
Flights operated
3,373
Cancelled
39 · 1.1%
On-time departures
78.3%

BNA → MDW and MDW → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 6,841 100.0% 75.2% 78

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 delay06:00–07:00-1.1min · 305 recorded · 298 measured
Gap to highest-delay hour26.1min06:00 ↔ 17:00
Recorded flights6,841BNA–MDW

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 · 94.8% · 657 recorded · 651 measured · Source: the US BTS 06:00 · 95.3% · 305 recorded · 298 measured · Source: the US BTS 07:00 · 91.7% · 471 recorded · 459 measured · Source: the US BTS 08:00 · 93.0% · 404 recorded · 402 measured · Source: the US BTS 09:00 · 86.9% · 329 recorded · 328 measured · Source: the US BTS 10:00 · 78.9% · 273 recorded · 270 measured · Source: the US BTS 11:00 · 76.7% · 396 recorded · 391 measured · Source: the US BTS 12:00 · 78.0% · 269 recorded · 264 measured · Source: the US BTS 13:00 · 68.3% · 301 recorded · 300 measured · Source: the US BTS 14:00 · 79.5% · 335 recorded · 331 measured · Source: the US BTS 15:00 · 66.6% · 410 recorded · 404 measured · Source: the US BTS 16:00 · 62.6% · 465 recorded · 462 measured · Source: the US BTS 17:00 · 64.2% · 276 recorded · 274 measured · Source: the US BTS 18:00 · 59.9% · 417 recorded · 414 measured · Source: the US BTS 19:00 · 58.8% · 357 recorded · 352 measured · Source: the US BTS 20:00 · 68.9% · 461 recorded · 460 measured · Source: the US BTS 21:00 · 58.7% · 446 recorded · 438 measured · Source: the US BTS 22:00 · 58.1% · 269 recorded · 265 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 · -0.3 min · 657 recorded · 651 measured · Source: the US BTS 06:00 · -1.1 min · 305 recorded · 298 measured · Source: the US BTS 07:00 · 0.9 min · 471 recorded · 459 measured · Source: the US BTS 08:00 · 0.2 min · 404 recorded · 402 measured · Source: the US BTS 09:00 · 6.8 min · 329 recorded · 328 measured · Source: the US BTS 10:00 · 8.5 min · 273 recorded · 270 measured · Source: the US BTS 11:00 · 12.4 min · 396 recorded · 391 measured · Source: the US BTS 12:00 · 10.8 min · 269 recorded · 264 measured · Source: the US BTS 13:00 · 12.7 min · 301 recorded · 300 measured · Source: the US BTS 14:00 · 10.4 min · 335 recorded · 331 measured · Source: the US BTS 15:00 · 16.4 min · 410 recorded · 404 measured · Source: the US BTS 16:00 · 20.2 min · 465 recorded · 462 measured · Source: the US BTS 17:00 · 25.1 min · 276 recorded · 274 measured · Source: the US BTS 18:00 · 24.5 min · 417 recorded · 414 measured · Source: the US BTS 19:00 · 23.6 min · 357 recorded · 352 measured · Source: the US BTS 20:00 · 14.6 min · 461 recorded · 460 measured · Source: the US BTS 21:00 · 24.3 min · 446 recorded · 438 measured · Source: the US BTS 22:00 · 24.4 min · 269 recorded · 265 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 · 657 · 657 recorded · 651 measured · Source: the US BTS 06:00 · 305 · 305 recorded · 298 measured · Source: the US BTS 07:00 · 471 · 471 recorded · 459 measured · Source: the US BTS 08:00 · 404 · 404 recorded · 402 measured · Source: the US BTS 09:00 · 329 · 329 recorded · 328 measured · Source: the US BTS 10:00 · 273 · 273 recorded · 270 measured · Source: the US BTS 11:00 · 396 · 396 recorded · 391 measured · Source: the US BTS 12:00 · 269 · 269 recorded · 264 measured · Source: the US BTS 13:00 · 301 · 301 recorded · 300 measured · Source: the US BTS 14:00 · 335 · 335 recorded · 331 measured · Source: the US BTS 15:00 · 410 · 410 recorded · 404 measured · Source: the US BTS 16:00 · 465 · 465 recorded · 462 measured · Source: the US BTS 17:00 · 276 · 276 recorded · 274 measured · Source: the US BTS 18:00 · 417 · 417 recorded · 414 measured · Source: the US BTS 19:00 · 357 · 357 recorded · 352 measured · Source: the US BTS 20:00 · 461 · 461 recorded · 460 measured · Source: the US BTS 21:00 · 446 · 446 recorded · 438 measured · Source: the US BTS 22:00 · 269 · 269 recorded · 265 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———
05:0094.8%-0.3 min651657
06:0095.3%-1.1 min298305
07:0091.7%0.9 min459471
08:0093.0%0.2 min402404
09:0086.9%6.8 min328329
10:0078.9%8.5 min270273
11:0076.7%12.4 min391396
12:0078.0%10.8 min264269
13:0068.3%12.7 min300301
14:0079.5%10.4 min331335
15:0066.6%16.4 min404410
16:0062.6%20.2 min462465
17:0064.2%25.1 min274276
18:0059.9%24.5 min414417
19:0058.8%23.6 min352357
20:0068.9%14.6 min460461
21:0058.7%24.3 min438446
22:0058.1%24.4 min265269
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.6% · 1,037 recorded · 1,022 measured · Source: the US BTS Tuesday · 81.1% · 950 recorded · 949 measured · Source: the US BTS Wednesday · 80.9% · 947 recorded · 938 measured · Source: the US BTS Thursday · 71.3% · 1,030 recorded · 1,019 measured · Source: the US BTS Friday · 71.6% · 1,049 recorded · 1,033 measured · Source: the US BTS Saturday · 79.7% · 747 recorded · 735 measured · Source: the US BTS Sunday · 71.4% · 1,081 recorded · 1,067 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 · 15.2 min · 1,037 recorded · 1,022 measured · Source: the US BTS Tuesday · 8.4 min · 950 recorded · 949 measured · Source: the US BTS Wednesday · 7.6 min · 947 recorded · 938 measured · Source: the US BTS Thursday · 14.3 min · 1,030 recorded · 1,019 measured · Source: the US BTS Friday · 15.2 min · 1,049 recorded · 1,033 measured · Source: the US BTS Saturday · 7.9 min · 747 recorded · 735 measured · Source: the US BTS Sunday · 16.7 min · 1,081 recorded · 1,067 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 · 1,037 · 1,037 recorded · 1,022 measured · Source: the US BTS Tuesday · 950 · 950 recorded · 949 measured · Source: the US BTS Wednesday · 947 · 947 recorded · 938 measured · Source: the US BTS Thursday · 1,030 · 1,030 recorded · 1,019 measured · Source: the US BTS Friday · 1,049 · 1,049 recorded · 1,033 measured · Source: the US BTS Saturday · 747 · 747 recorded · 735 measured · Source: the US BTS Sunday · 1,081 · 1,081 recorded · 1,067 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.6%15.2 min1,0221,037
Tuesday81.1%8.4 min949950
Wednesday80.9%7.6 min938947
Thursday71.3%14.3 min1,0191,030
Friday71.6%15.2 min1,0331,049
Saturday79.7%7.9 min735747
Sunday71.4%16.7 min1,0671,081

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 · 86.0% · 527 recorded · 500 measured · Source: the US BTS Feb · 86.1% · 478 recorded · 474 measured · Source: the US BTS Mar · 75.8% · 646 recorded · 636 measured · Source: the US BTS Apr · 78.0% · 660 recorded · 654 measured · Source: the US BTS May · 69.4% · 682 recorded · 682 measured · Source: the US BTS Jun · 65.7% · 651 recorded · 644 measured · Source: the US BTS Jul · 57.4% · 685 recorded · 678 measured · Source: the US BTS Aug · 69.1% · 336 recorded · 333 measured · Source: the US BTS Sep · 84.3% · 318 recorded · 318 measured · Source: the US BTS Oct · 79.0% · 553 recorded · 553 measured · Source: the US BTS Nov · 83.4% · 664 recorded · 650 measured · Source: the US BTS Dec · 76.9% · 641 recorded · 641 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 3.9 min · 527 recorded · 500 measured · Source: the US BTS Feb · 5.9 min · 478 recorded · 474 measured · Source: the US BTS Mar · 14.6 min · 646 recorded · 636 measured · Source: the US BTS Apr · 9.3 min · 660 recorded · 654 measured · Source: the US BTS May · 14.3 min · 682 recorded · 682 measured · Source: the US BTS Jun · 19.9 min · 651 recorded · 644 measured · Source: the US BTS Jul · 24.5 min · 685 recorded · 678 measured · Source: the US BTS Aug · 17.5 min · 336 recorded · 333 measured · Source: the US BTS Sep · 4.8 min · 318 recorded · 318 measured · Source: the US BTS Oct · 9.4 min · 553 recorded · 553 measured · Source: the US BTS Nov · 8.9 min · 664 recorded · 650 measured · Source: the US BTS Dec · 10.9 min · 641 recorded · 641 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 · 527 · 527 recorded · 500 measured · Source: the US BTS Feb · 478 · 478 recorded · 474 measured · Source: the US BTS Mar · 646 · 646 recorded · 636 measured · Source: the US BTS Apr · 660 · 660 recorded · 654 measured · Source: the US BTS May · 682 · 682 recorded · 682 measured · Source: the US BTS Jun · 651 · 651 recorded · 644 measured · Source: the US BTS Jul · 685 · 685 recorded · 678 measured · Source: the US BTS Aug · 336 · 336 recorded · 333 measured · Source: the US BTS Sep · 318 · 318 recorded · 318 measured · Source: the US BTS Oct · 553 · 553 recorded · 553 measured · Source: the US BTS Nov · 664 · 664 recorded · 650 measured · Source: the US BTS Dec · 641 · 641 recorded · 641 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan86.0%3.9 min500527
Feb86.1%5.9 min474478
Mar75.8%14.6 min636646
Apr78.0%9.3 min654660
May69.4%14.3 min682682
Jun65.7%19.9 min644651
Jul57.4%24.5 min678685
Aug69.1%17.5 min333336
Sep84.3%4.8 min318318
Oct79.0%9.4 min553553
Nov83.4%8.9 min650664
Dec76.9%10.9 min641641

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 74.3% 5,085
  • Delayed >15 min 24.5% 1,678
  • Cancelled 1.1% 78
  • 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

87
87 of 87
Flight numbersBy direction DeparturesOn time
WN2665 MDW → BNA 117 98.3%
WN2993 MDW → BNA 110 88.2%
WN3969 MDW → BNA 101 77.0%
WN955 BNA → MDW 101 94.8%
WN2959 MDW → BNA 92 72.5%
WN649 MDW → BNA 92 78.9%
WN4877 BNA → MDW 91 81.6%
WN1647 BNA → MDW 82 73.2%
WN3079 BNA → MDW 80 84.8%
WN1048 MDW → BNA 71 85.7%
WN1044 MDW → BNA 64 100.0%
WN1191 BNA → MDW 64 76.2%
WN1325 MDW → BNA 63 64.5%
WN1080 MDW → BNA 61 59.0%
WN4010 BNA → MDW 61 90.2%
WN1178 BNA → MDW 60 37.3%
WN4350 BNA → MDW 60 93.2%
WN2210 BNA → MDW 58 86.2%
WN2246 BNA → MDW 58 85.2%
WN2284 MDW → BNA 58 93.0%
WN3233 MDW → BNA 58 81.0%
WN4389 MDW → BNA 58 96.4%
WN4455 BNA → MDW 58 74.1%
WN690 BNA → MDW 58 91.4%
WN2003 MDW → BNA 57 100.0%
WN3286 BNA → MDW 57 70.2%
WN3575 BNA → MDW 57 63.2%
WN3711 BNA → MDW 57 54.4%
WN4091 MDW → BNA 57 63.0%
WN578 BNA → MDW 57 40.4%
WN698 BNA → MDW 57 40.4%
WN1190 BNA → MDW 56 92.9%
WN2804 BNA → MDW 53 60.4%
WN1957 MDW → BNA 52 43.1%
WN2161 MDW → BNA 51 76.5%
WN2580 BNA → MDW 51 62.8%
WN947 MDW → BNA 51 78.4%
WN1073 MDW → BNA 50 31.3%
WN1147 BNA → MDW 50 68.0%
WN1904 MDW → BNA 50 94.0%
WN2118 BNA → MDW 50 62.5%
WN2654 MDW → BNA 50 81.6%
WN367 MDW → BNA 50 96.0%
WN4007 BNA → MDW 50 46.9%
WN695 BNA → MDW 50 30.0%
WN1269 MDW → BNA 49 93.9%
WN573 BNA → MDW 49 95.9%
WN697 BNA → MDW 49 36.2%
WN1495 MDW → BNA 47 88.9%
WN2997 BNA → MDW 47 88.9%
WN1124 MDW → BNA 45 93.3%
WN1193 BNA → MDW 43 72.1%
WN1675 MDW → BNA 43 76.7%
WN1078 MDW → BNA 42 95.2%
WN1157 BNA → MDW 42 78.6%
WN1195 BNA → MDW 42 61.0%
WN2241 BNA → MDW 42 19.5%
WN2568 BNA → MDW 42 73.8%
WN2733 MDW → BNA 42 52.4%
WN2741 MDW → BNA 42 83.3%
WN2954 BNA → MDW 42 85.7%
WN4286 BNA → MDW 42 21.4%
WN662 MDW → BNA 42 73.8%
WN775 MDW → BNA 42 66.7%
WN972 MDW → BNA 37 86.5%
WN4691 BNA → MDW 36 58.3%
WN606 MDW → BNA 35 62.9%
WN1010 BNA → MDW 34 58.8%
WN1401 MDW → BNA 34 73.5%
WN1514 MDW → BNA 34 73.5%
WN3235 MDW → BNA 34 61.8%
WN2535 MDW → BNA 33 75.8%
WN2792 BNA → MDW 33 59.4%
WN3038 MDW → BNA 33 40.6%
WN3298 BNA → MDW 33 72.7%
WN3437 BNA → MDW 33 93.9%
WN3554 MDW → BNA 33 63.6%
WN998 BNA → MDW 33 57.6%
WN1142 BNA → MDW 32 96.9%
WN2030 BNA → MDW 32 78.1%
WN1057 MDW → BNA 31 61.3%
WN1252 BNA → MDW 31 67.7%
WN1431 MDW → BNA 31 96.8%
WN313 BNA → MDW 31 96.8%
WN3234 MDW → BNA 31 71.0%
WN3565 BNA → MDW 31 80.7%
WN1417 BNA → MDW 30 93.3%

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 333 −3.5% 2 51.7%
June 2026 302 −11.7% 6 60.6%
May 2026 343 +1.2% 0 60.6%
April 2026 326 −0.6% 6 72.1%
March 2026 320 +1.3% 8 68.8%
February 2026 238 +0.8% 1 84.5%
January 2026 248 −1.6% 15 86.3%
December 2025 304 −9.8% 0 74.3%
November 2025 308 −9.9% 10 79.9%
October 2025 339 +58.4% 0 72.0%
September 2025 318 0 84.3%
August 2025 333 3 69.1%
July 2025 345 5 62.9%
June 2025 342 1 70.2%
May 2025 339 0 78.2%
April 2025 328 0 83.8%
March 2025 316 2 82.9%
February 2025 236 3 87.7%
January 2025 252 12 85.7%
December 2024 337 0 79.2%
November 2024 342 4 86.5%
October 2024 214 0 90.2%

How to read this chart

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