Aviation Data
EN
EnglishTiếng Việt

1,510 km · Domestic

William P. Hobby (HOU) – Chicago Midway (MDW)

In July 2026, 388 flights operated between William P. Hobby and Chicago Midway (both directions), and 53.4% 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
January246257▲ 4.5%
February221234▲ 5.9%
March301316▲ 5.0%
April289297▲ 2.8%
May325299▼ 8.0%
June353341▼ 3.4%
July366388▲ 6.0%
August330––
September323––
October308–in progress
November271––
December289––
Year to date (Jan–Jul)2,1012,132▲ 1.5%

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
January83.7%82.9%▼ 1.0%
February89.1%77.4%▼ 13.1%
March82.1%62.7%▼ 23.6%
April79.6%77.1%▼ 3.1%
May72.9%63.2%▼ 13.3%
June66.0%54.5%▼ 17.4%
July59.3%53.4%▼ 9.9%
August75.8%––
September87.6%––
October75.3%–in progress
November74.2%––
December70.2%––
Year-to-date average (Jan–Jul)76.1%67.3%▼ 11.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January111▼ 90.9%
February51▼ 80.0%
March06–
April03–
May20▼ 100.0%
June440.0%
July770.0%
August3––
September1––
October0–in progress
November17––
December1––
Year to date (Jan–Jul)2922▼ 24.1%

By direction

HOU → MDW

Scheduled flights
3,275
Flights operated
3,237
Cancelled
38 · 1.2%
On-time departures
73.2%

MDW → HOU

Scheduled flights
3,304
Flights operated
3,265
Cancelled
39 · 1.2%
On-time departures
73.0%

HOU → MDW and MDW → HOU counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 6,579 100.0% 73.1% 77

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 delay06:00–07:000.8min · 593 recorded · 588 measured
Gap to highest-delay hour28.8min06:00 ↔ 21:00
Recorded flights6,579HOU–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 · 92.3% · 508 recorded · 504 measured · Source: the US BTS 06:00 · 94.7% · 593 recorded · 588 measured · Source: the US BTS 07:00 · 86.5% · 437 recorded · 436 measured · Source: the US BTS 08:00 · 86.6% · 462 recorded · 456 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 10:00 · 84.1% · 253 recorded · 252 measured · Source: the US BTS 11:00 · 76.9% · 364 recorded · 355 measured · Source: the US BTS 12:00 · 67.6% · 329 recorded · 327 measured · Source: the US BTS 13:00 · 76.8% · 265 recorded · 259 measured · Source: the US BTS 14:00 · 63.6% · 414 recorded · 412 measured · Source: the US BTS 15:00 · 63.4% · 225 recorded · 224 measured · Source: the US BTS 16:00 · 59.8% · 241 recorded · 236 measured · Source: the US BTS 17:00 · 63.4% · 363 recorded · 358 measured · Source: the US BTS 18:00 · 57.1% · 473 recorded · 469 measured · Source: the US BTS 19:00 · 61.3% · 336 recorded · 331 measured · Source: the US BTS 20:00 · 66.1% · 525 recorded · 519 measured · Source: the US BTS 21:00 · 49.1% · 416 recorded · 405 measured · Source: the US BTS 22:00 · 62.4% · 222 recorded · 218 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 · 2.3 min · 508 recorded · 504 measured · Source: the US BTS 06:00 · 0.8 min · 593 recorded · 588 measured · Source: the US BTS 07:00 · 5.5 min · 437 recorded · 436 measured · Source: the US BTS 08:00 · 4.8 min · 462 recorded · 456 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 10:00 · 7.8 min · 253 recorded · 252 measured · Source: the US BTS 11:00 · 11.2 min · 364 recorded · 355 measured · Source: the US BTS 12:00 · 16.7 min · 329 recorded · 327 measured · Source: the US BTS 13:00 · 14.4 min · 265 recorded · 259 measured · Source: the US BTS 14:00 · 22.4 min · 414 recorded · 412 measured · Source: the US BTS 15:00 · 19.3 min · 225 recorded · 224 measured · Source: the US BTS 16:00 · 22.8 min · 241 recorded · 236 measured · Source: the US BTS 17:00 · 18.8 min · 363 recorded · 358 measured · Source: the US BTS 18:00 · 23.1 min · 473 recorded · 469 measured · Source: the US BTS 19:00 · 20.3 min · 336 recorded · 331 measured · Source: the US BTS 20:00 · 16.4 min · 525 recorded · 519 measured · Source: the US BTS 21:00 · 29.6 min · 416 recorded · 405 measured · Source: the US BTS 22:00 · 18.4 min · 222 recorded · 218 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 · 508 · 508 recorded · 504 measured · Source: the US BTS 06:00 · 593 · 593 recorded · 588 measured · Source: the US BTS 07:00 · 437 · 437 recorded · 436 measured · Source: the US BTS 08:00 · 462 · 462 recorded · 456 measured · Source: the US BTS 09:00 · 153 · 153 recorded · 153 measured · Source: the US BTS 10:00 · 253 · 253 recorded · 252 measured · Source: the US BTS 11:00 · 364 · 364 recorded · 355 measured · Source: the US BTS 12:00 · 329 · 329 recorded · 327 measured · Source: the US BTS 13:00 · 265 · 265 recorded · 259 measured · Source: the US BTS 14:00 · 414 · 414 recorded · 412 measured · Source: the US BTS 15:00 · 225 · 225 recorded · 224 measured · Source: the US BTS 16:00 · 241 · 241 recorded · 236 measured · Source: the US BTS 17:00 · 363 · 363 recorded · 358 measured · Source: the US BTS 18:00 · 473 · 473 recorded · 469 measured · Source: the US BTS 19:00 · 336 · 336 recorded · 331 measured · Source: the US BTS 20:00 · 525 · 525 recorded · 519 measured · Source: the US BTS 21:00 · 416 · 416 recorded · 405 measured · Source: the US BTS 22:00 · 222 · 222 recorded · 218 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———
05:0092.3%2.3 min504508
06:0094.7%0.8 min588593
07:0086.5%5.5 min436437
08:0086.6%4.8 min456462
09:00Fewer than 200 measured departures—153153
10:0084.1%7.8 min252253
11:0076.9%11.2 min355364
12:0067.6%16.7 min327329
13:0076.8%14.4 min259265
14:0063.6%22.4 min412414
15:0063.4%19.3 min224225
16:0059.8%22.8 min236241
17:0063.4%18.8 min358363
18:0057.1%23.1 min469473
19:0061.3%20.3 min331336
20:0066.1%16.4 min519525
21:0049.1%29.6 min405416
22:0062.4%18.4 min218222
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 71.0% · 991 recorded · 976 measured · Source: the US BTS Tuesday · 77.9% · 903 recorded · 893 measured · Source: the US BTS Wednesday · 75.6% · 894 recorded · 885 measured · Source: the US BTS Thursday · 73.1% · 980 recorded · 971 measured · Source: the US BTS Friday · 69.5% · 995 recorded · 983 measured · Source: the US BTS Saturday · 77.7% · 896 recorded · 883 measured · Source: the US BTS Sunday · 67.5% · 920 recorded · 911 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 · 15.4 min · 991 recorded · 976 measured · Source: the US BTS Tuesday · 10.8 min · 903 recorded · 893 measured · Source: the US BTS Wednesday · 13.0 min · 894 recorded · 885 measured · Source: the US BTS Thursday · 13.5 min · 980 recorded · 971 measured · Source: the US BTS Friday · 16.6 min · 995 recorded · 983 measured · Source: the US BTS Saturday · 9.8 min · 896 recorded · 883 measured · Source: the US BTS Sunday · 17.3 min · 920 recorded · 911 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 · 991 · 991 recorded · 976 measured · Source: the US BTS Tuesday · 903 · 903 recorded · 893 measured · Source: the US BTS Wednesday · 894 · 894 recorded · 885 measured · Source: the US BTS Thursday · 980 · 980 recorded · 971 measured · Source: the US BTS Friday · 995 · 995 recorded · 983 measured · Source: the US BTS Saturday · 896 · 896 recorded · 883 measured · Source: the US BTS Sunday · 920 · 920 recorded · 911 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
Monday71.0%15.4 min976991
Tuesday77.9%10.8 min893903
Wednesday75.6%13.0 min885894
Thursday73.1%13.5 min971980
Friday69.5%16.6 min983995
Saturday77.7%9.8 min883896
Sunday67.5%17.3 min911920

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 · 83.3% · 515 recorded · 503 measured · Source: the US BTS Feb · 83.1% · 461 recorded · 455 measured · Source: the US BTS Mar · 72.1% · 623 recorded · 617 measured · Source: the US BTS Apr · 78.3% · 589 recorded · 586 measured · Source: the US BTS May · 68.3% · 626 recorded · 624 measured · Source: the US BTS Jun · 60.4% · 702 recorded · 694 measured · Source: the US BTS Jul · 56.2% · 768 recorded · 754 measured · Source: the US BTS Aug · 75.8% · 333 recorded · 330 measured · Source: the US BTS Sep · 87.6% · 324 recorded · 323 measured · Source: the US BTS Oct · 79.1% · 494 recorded · 493 measured · Source: the US BTS Nov · 80.2% · 573 recorded · 556 measured · Source: the US BTS Dec · 72.8% · 571 recorded · 567 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 · 6.4 min · 515 recorded · 503 measured · Source: the US BTS Feb · 7.0 min · 461 recorded · 455 measured · Source: the US BTS Mar · 13.7 min · 623 recorded · 617 measured · Source: the US BTS Apr · 10.8 min · 589 recorded · 586 measured · Source: the US BTS May · 16.6 min · 626 recorded · 624 measured · Source: the US BTS Jun · 24.8 min · 702 recorded · 694 measured · Source: the US BTS Jul · 23.1 min · 768 recorded · 754 measured · Source: the US BTS Aug · 12.8 min · 333 recorded · 330 measured · Source: the US BTS Sep · 5.9 min · 324 recorded · 323 measured · Source: the US BTS Oct · 8.7 min · 494 recorded · 493 measured · Source: the US BTS Nov · 9.5 min · 573 recorded · 556 measured · Source: the US BTS Dec · 14.2 min · 571 recorded · 567 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 · 515 · 515 recorded · 503 measured · Source: the US BTS Feb · 461 · 461 recorded · 455 measured · Source: the US BTS Mar · 623 · 623 recorded · 617 measured · Source: the US BTS Apr · 589 · 589 recorded · 586 measured · Source: the US BTS May · 626 · 626 recorded · 624 measured · Source: the US BTS Jun · 702 · 702 recorded · 694 measured · Source: the US BTS Jul · 768 · 768 recorded · 754 measured · Source: the US BTS Aug · 333 · 333 recorded · 330 measured · Source: the US BTS Sep · 324 · 324 recorded · 323 measured · Source: the US BTS Oct · 494 · 494 recorded · 493 measured · Source: the US BTS Nov · 573 · 573 recorded · 556 measured · Source: the US BTS Dec · 571 · 571 recorded · 567 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
Jan83.3%6.4 min503515
Feb83.1%7.0 min455461
Mar72.1%13.7 min617623
Apr78.3%10.8 min586589
May68.3%16.6 min624626
Jun60.4%24.8 min694702
Jul56.2%23.1 min754768
Aug75.8%12.8 min330333
Sep87.6%5.9 min323324
Oct79.1%8.7 min493494
Nov80.2%9.5 min556573
Dec72.8%14.2 min567571

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 72.2% 4,752
  • Delayed >15 min 26.6% 1,750
  • Cancelled 1.2% 77
  • 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

83
83 of 83
Flight numbersBy direction DeparturesOn time
WN1732 HOU → MDW 119 73.7%
WN1149 MDW → HOU 117 91.4%
WN4741 MDW → HOU 116 71.2%
WN3956 MDW → HOU 111 80.7%
WN2630 HOU → MDW 92 87.6%
WN1260 HOU → MDW 85 80.7%
WN2332 HOU → MDW 80 94.8%
WN4814 MDW → HOU 77 98.7%
WN2922 MDW → HOU 64 62.3%
WN2942 HOU → MDW 64 66.7%
WN851 HOU → MDW 64 87.3%
WN2583 MDW → HOU 63 88.7%
WN2941 HOU → MDW 63 83.6%
WN3709 MDW → HOU 62 80.3%
WN2353 HOU → MDW 61 36.1%
WN519 MDW → HOU 61 86.9%
WN3995 HOU → MDW 60 59.3%
WN4679 MDW → HOU 60 85.0%
WN1823 MDW → HOU 59 40.4%
WN3240 MDW → HOU 59 67.2%
WN874 MDW → HOU 59 56.9%
WN1592 HOU → MDW 58 69.0%
WN2002 HOU → MDW 58 70.7%
WN2326 HOU → MDW 58 69.0%
WN2666 MDW → HOU 58 67.2%
WN2954 HOU → MDW 58 75.4%
WN2963 HOU → MDW 58 74.1%
WN3694 MDW → HOU 58 77.6%
WN3964 MDW → HOU 58 79.3%
WN4214 HOU → MDW 58 96.6%
WN428 HOU → MDW 58 96.5%
WN4807 MDW → HOU 58 62.1%
WN860 MDW → HOU 58 81.0%
WN1726 HOU → MDW 57 83.9%
WN1865 MDW → HOU 57 66.7%
WN2044 HOU → MDW 57 16.1%
WN2785 MDW → HOU 57 45.5%
WN4707 HOU → MDW 57 98.3%
WN1676 HOU → MDW 55 74.6%
WN1910 HOU → MDW 55 85.2%
WN3104 HOU → MDW 52 90.2%
WN2456 MDW → HOU 51 80.4%
WN2042 HOU → MDW 50 34.7%
WN2292 MDW → HOU 50 82.0%
WN2373 HOU → MDW 50 62.0%
WN2453 HOU → MDW 50 82.0%
WN2492 MDW → HOU 50 63.3%
WN3003 HOU → MDW 50 78.0%
WN3414 MDW → HOU 50 88.0%
WN474 MDW → HOU 50 92.0%
WN3151 MDW → HOU 49 58.3%
WN2743 MDW → HOU 47 87.2%
WN2275 HOU → MDW 45 72.7%
WN3107 HOU → MDW 43 53.5%
WN123 HOU → MDW 42 50.0%
WN1347 MDW → HOU 42 78.6%
WN1431 MDW → HOU 42 46.3%
WN2783 MDW → HOU 42 78.6%
WN3105 HOU → MDW 42 90.2%
WN3829 MDW → HOU 42 43.9%
WN4497 MDW → HOU 42 90.5%
WN455 MDW → HOU 42 90.5%
WN709 MDW → HOU 42 35.7%
WN3946 MDW → HOU 39 50.0%
WN2818 MDW → HOU 37 83.3%
WN3090 HOU → MDW 34 47.1%
WN954 MDW → HOU 34 39.4%
WN150 MDW → HOU 33 90.9%
WN1515 MDW → HOU 33 78.8%
WN2041 HOU → MDW 33 33.3%
WN2097 HOU → MDW 33 100.0%
WN2649 HOU → MDW 33 87.5%
WN3253 MDW → HOU 33 54.6%
WN3433 HOU → MDW 33 30.3%
WN3724 MDW → HOU 33 66.7%
WN424 HOU → MDW 33 100.0%
WN4561 HOU → MDW 33 81.8%
WN909 MDW → HOU 33 87.9%
WN951 MDW → HOU 33 40.0%
WN2952 HOU → MDW 32 93.8%
WN2145 HOU → MDW 31 64.5%
WN2927 MDW → HOU 31 74.2%
WN939 MDW → HOU 31 93.6%

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 388 +6.0% 7 53.4%
June 2026 341 −3.4% 4 54.5%
May 2026 299 −8.0% 0 63.2%
April 2026 297 +2.8% 3 77.1%
March 2026 316 +5.0% 6 62.7%
February 2026 234 +5.9% 1 77.4%
January 2026 257 +4.5% 1 82.9%
December 2025 289 +4.0% 1 70.2%
November 2025 271 −4.9% 17 74.2%
October 2025 308 +66.5% 0 75.3%
September 2025 323 1 87.6%
August 2025 330 3 75.8%
July 2025 366 7 59.3%
June 2025 353 4 66.0%
May 2025 325 2 72.9%
April 2025 289 0 79.6%
March 2025 301 0 82.1%
February 2025 221 5 89.1%
January 2025 246 11 83.7%
December 2024 278 3 75.5%
November 2024 285 0 86.0%
October 2024 185 1 85.4%

How to read this chart

Loading the guide…