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309 km · Domestic

William P. Hobby (HOU) – San Antonio (SAT)

In July 2026, 191 flights operated between William P. Hobby and San Antonio (both directions), and 67.0% 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
January239194▼ 18.8%
February231167▼ 27.7%
March266201▼ 24.4%
April254196▼ 22.8%
May264206▼ 22.0%
June256187▼ 27.0%
July262191▼ 27.1%
August287––
September282––
October279–in progress
November238––
December244––
Year to date (Jan–Jul)1,7721,342▼ 24.3%

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
January91.2%84.5%▼ 7.3%
February86.6%80.2%▼ 7.4%
March84.2%69.2%▼ 17.8%
April79.5%72.4%▼ 8.9%
May80.7%61.2%▼ 24.2%
June68.4%64.7%▼ 5.4%
July69.1%67.0%▼ 3.0%
August83.6%––
September87.2%––
October82.4%–in progress
November80.3%––
December82.8%––
Year-to-date average (Jan–Jul)80.0%71.3%▼ 10.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January141▼ 92.9%
February01–
March00–
April20▼ 100.0%
May10▼ 100.0%
June220.0%
July00–
August0––
September0––
October1–in progress
November0––
December0––
Year to date (Jan–Jul)194▼ 78.9%

By direction

HOU → SAT

Scheduled flights
2,557
Flights operated
2,548
Cancelled
9 · 0.4%
On-time departures
77.6%

SAT → HOU

Scheduled flights
2,571
Flights operated
2,556
Cancelled
15 · 0.6%
On-time departures
80.6%

HOU → SAT and SAT → HOU counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 5,128 100.0% 79.1% 24

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 · 335 recorded · 333 measured
Gap to highest-delay hour23.1min06:00 ↔ 22:00
Recorded flights5,128HOU–SAT

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 · 94.3% · 231 recorded · 229 measured · Source: the US BTS 06:00 · 95.8% · 335 recorded · 333 measured · Source: the US BTS 07:00 · 91.8% · 207 recorded · 207 measured · Source: the US BTS 08:00 · 93.5% · 542 recorded · 539 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 189 recorded · 187 measured · Source: the US BTS 10:00 · 86.4% · 374 recorded · 374 measured · Source: the US BTS 11:00 · 88.7% · 258 recorded · 257 measured · Source: the US BTS 12:00 · 77.3% · 217 recorded · 216 measured · Source: the US BTS 13:00 · 85.4% · 264 recorded · 260 measured · Source: the US BTS 14:00 · 70.5% · 254 recorded · 254 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS 16:00 · 80.5% · 293 recorded · 292 measured · Source: the US BTS 17:00 · 63.8% · 240 recorded · 240 measured · Source: the US BTS 18:00 · 69.8% · 424 recorded · 420 measured · Source: the US BTS 19:00 · 59.4% · 230 recorded · 229 measured · Source: the US BTS 20:00 · 66.8% · 507 recorded · 506 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 188 recorded · 187 measured · Source: the US BTS 22:00 · 60.7% · 281 recorded · 280 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 · 0.5 min · 231 recorded · 229 measured · Source: the US BTS 06:00 · -1.1 min · 335 recorded · 333 measured · Source: the US BTS 07:00 · 2.6 min · 207 recorded · 207 measured · Source: the US BTS 08:00 · -0.2 min · 542 recorded · 539 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 189 recorded · 187 measured · Source: the US BTS 10:00 · 4.3 min · 374 recorded · 374 measured · Source: the US BTS 11:00 · 2.2 min · 258 recorded · 257 measured · Source: the US BTS 12:00 · 11.4 min · 217 recorded · 216 measured · Source: the US BTS 13:00 · 5.2 min · 264 recorded · 260 measured · Source: the US BTS 14:00 · 16.0 min · 254 recorded · 254 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS 16:00 · 8.1 min · 293 recorded · 292 measured · Source: the US BTS 17:00 · 19.4 min · 240 recorded · 240 measured · Source: the US BTS 18:00 · 16.4 min · 424 recorded · 420 measured · Source: the US BTS 19:00 · 21.4 min · 230 recorded · 229 measured · Source: the US BTS 20:00 · 15.8 min · 507 recorded · 506 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 188 recorded · 187 measured · Source: the US BTS 22:00 · 22.0 min · 281 recorded · 280 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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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 · 231 · 231 recorded · 229 measured · Source: the US BTS 06:00 · 335 · 335 recorded · 333 measured · Source: the US BTS 07:00 · 207 · 207 recorded · 207 measured · Source: the US BTS 08:00 · 542 · 542 recorded · 539 measured · Source: the US BTS 09:00 · 189 · 189 recorded · 187 measured · Source: the US BTS 10:00 · 374 · 374 recorded · 374 measured · Source: the US BTS 11:00 · 258 · 258 recorded · 257 measured · Source: the US BTS 12:00 · 217 · 217 recorded · 216 measured · Source: the US BTS 13:00 · 264 · 264 recorded · 260 measured · Source: the US BTS 14:00 · 254 · 254 recorded · 254 measured · Source: the US BTS 15:00 · 94 · 94 recorded · 94 measured · Source: the US BTS 16:00 · 293 · 293 recorded · 292 measured · Source: the US BTS 17:00 · 240 · 240 recorded · 240 measured · Source: the US BTS 18:00 · 424 · 424 recorded · 420 measured · Source: the US BTS 19:00 · 230 · 230 recorded · 229 measured · Source: the US BTS 20:00 · 507 · 507 recorded · 506 measured · Source: the US BTS 21:00 · 188 · 188 recorded · 187 measured · Source: the US BTS 22:00 · 281 · 281 recorded · 280 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———
05:0094.3%0.5 min229231
06:0095.8%-1.1 min333335
07:0091.8%2.6 min207207
08:0093.5%-0.2 min539542
09:00Fewer than 200 measured departures—187189
10:0086.4%4.3 min374374
11:0088.7%2.2 min257258
12:0077.3%11.4 min216217
13:0085.4%5.2 min260264
14:0070.5%16.0 min254254
15:00Fewer than 200 measured departures—9494
16:0080.5%8.1 min292293
17:0063.8%19.4 min240240
18:0069.8%16.4 min420424
19:0059.4%21.4 min229230
20:0066.8%15.8 min506507
21:00Fewer than 200 measured departures—187188
22:0060.7%22.0 min280281
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 76.6% · 718 recorded · 714 measured · Source: the US BTS Tuesday · 84.4% · 680 recorded · 672 measured · Source: the US BTS Wednesday · 81.9% · 680 recorded · 675 measured · Source: the US BTS Thursday · 77.0% · 718 recorded · 717 measured · Source: the US BTS Friday · 80.0% · 712 recorded · 709 measured · Source: the US BTS Saturday · 78.9% · 816 recorded · 814 measured · Source: the US BTS Sunday · 75.8% · 804 recorded · 803 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 · 11.1 min · 718 recorded · 714 measured · Source: the US BTS Tuesday · 7.1 min · 680 recorded · 672 measured · Source: the US BTS Wednesday · 8.3 min · 680 recorded · 675 measured · Source: the US BTS Thursday · 10.3 min · 718 recorded · 717 measured · Source: the US BTS Friday · 10.0 min · 712 recorded · 709 measured · Source: the US BTS Saturday · 7.8 min · 816 recorded · 814 measured · Source: the US BTS Sunday · 11.3 min · 804 recorded · 803 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 718 · 718 recorded · 714 measured · Source: the US BTS Tuesday · 680 · 680 recorded · 672 measured · Source: the US BTS Wednesday · 680 · 680 recorded · 675 measured · Source: the US BTS Thursday · 718 · 718 recorded · 717 measured · Source: the US BTS Friday · 712 · 712 recorded · 709 measured · Source: the US BTS Saturday · 816 · 816 recorded · 814 measured · Source: the US BTS Sunday · 804 · 804 recorded · 803 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday76.6%11.1 min714718
Tuesday84.4%7.1 min672680
Wednesday81.9%8.3 min675680
Thursday77.0%10.3 min717718
Friday80.0%10.0 min709712
Saturday78.9%7.8 min814816
Sunday75.8%11.3 min803804

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 · 88.2% · 448 recorded · 433 measured · Source: the US BTS Feb · 83.9% · 399 recorded · 398 measured · Source: the US BTS Mar · 77.7% · 467 recorded · 467 measured · Source: the US BTS Apr · 76.4% · 452 recorded · 450 measured · Source: the US BTS May · 72.1% · 471 recorded · 470 measured · Source: the US BTS Jun · 66.8% · 447 recorded · 443 measured · Source: the US BTS Jul · 68.2% · 453 recorded · 453 measured · Source: the US BTS Aug · 83.6% · 287 recorded · 287 measured · Source: the US BTS Sep · 87.2% · 282 recorded · 282 measured · Source: the US BTS Oct · 84.9% · 452 recorded · 451 measured · Source: the US BTS Nov · 84.6% · 480 recorded · 480 measured · Source: the US BTS Dec · 80.6% · 490 recorded · 490 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 · 3.0 min · 448 recorded · 433 measured · Source: the US BTS Feb · 5.2 min · 399 recorded · 398 measured · Source: the US BTS Mar · 11.2 min · 467 recorded · 467 measured · Source: the US BTS Apr · 9.2 min · 452 recorded · 450 measured · Source: the US BTS May · 14.0 min · 471 recorded · 470 measured · Source: the US BTS Jun · 18.4 min · 447 recorded · 443 measured · Source: the US BTS Jul · 16.7 min · 453 recorded · 453 measured · Source: the US BTS Aug · 5.4 min · 287 recorded · 287 measured · Source: the US BTS Sep · 3.7 min · 282 recorded · 282 measured · Source: the US BTS Oct · 6.7 min · 452 recorded · 451 measured · Source: the US BTS Nov · 6.5 min · 480 recorded · 480 measured · Source: the US BTS Dec · 8.8 min · 490 recorded · 490 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 448 · 448 recorded · 433 measured · Source: the US BTS Feb · 399 · 399 recorded · 398 measured · Source: the US BTS Mar · 467 · 467 recorded · 467 measured · Source: the US BTS Apr · 452 · 452 recorded · 450 measured · Source: the US BTS May · 471 · 471 recorded · 470 measured · Source: the US BTS Jun · 447 · 447 recorded · 443 measured · Source: the US BTS Jul · 453 · 453 recorded · 453 measured · Source: the US BTS Aug · 287 · 287 recorded · 287 measured · Source: the US BTS Sep · 282 · 282 recorded · 282 measured · Source: the US BTS Oct · 452 · 452 recorded · 451 measured · Source: the US BTS Nov · 480 · 480 recorded · 480 measured · Source: the US BTS Dec · 490 · 490 recorded · 490 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan88.2%3.0 min433448
Feb83.9%5.2 min398399
Mar77.7%11.2 min467467
Apr76.4%9.2 min450452
May72.1%14.0 min470471
Jun66.8%18.4 min443447
Jul68.2%16.7 min453453
Aug83.6%5.4 min287287
Sep87.2%3.7 min282282
Oct84.9%6.7 min451452
Nov84.6%6.5 min480480
Dec80.6%8.8 min490490

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 78.7% 4,037
  • Delayed >15 min 20.8% 1,067
  • Cancelled 0.5% 24
  • 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

62
62 of 62
Flight numbersBy direction DeparturesOn time
WN1263 HOU → SAT 101 92.9%
WN4930 HOU → SAT 95 92.5%
WN3182 HOU → SAT 86 89.3%
WN147 SAT → HOU 64 96.9%
WN2744 SAT → HOU 62 45.2%
WN1162 SAT → HOU 61 81.7%
WN1453 HOU → SAT 61 91.8%
WN1979 SAT → HOU 61 91.8%
WN2978 HOU → SAT 61 78.7%
WN3423 HOU → SAT 61 45.9%
WN4435 SAT → HOU 61 98.3%
WN4749 HOU → SAT 60 43.3%
WN1088 SAT → HOU 58 86.2%
WN1137 HOU → SAT 58 75.9%
WN1732 SAT → HOU 58 84.5%
WN2808 HOU → SAT 58 62.1%
WN2951 SAT → HOU 58 93.1%
WN3011 HOU → SAT 58 96.6%
WN346 SAT → HOU 58 96.6%
WN3763 HOU → SAT 58 94.8%
WN385 HOU → SAT 58 79.3%
WN442 SAT → HOU 58 94.8%
WN4451 HOU → SAT 58 45.6%
WN952 SAT → HOU 58 96.6%
WN1266 HOU → SAT 57 86.0%
WN1434 SAT → HOU 57 83.9%
WN148 HOU → SAT 57 84.2%
WN3510 SAT → HOU 51 66.0%
WN4360 SAT → HOU 51 91.8%
WN1531 SAT → HOU 50 83.7%
WN2760 SAT → HOU 50 80.0%
WN3566 SAT → HOU 50 80.0%
WN2770 HOU → SAT 49 95.9%
WN3935 SAT → HOU 49 65.3%
WN202 SAT → HOU 47 93.6%
WN2486 HOU → SAT 47 83.0%
WN276 SAT → HOU 47 91.1%
WN3125 HOU → SAT 47 72.3%
WN1280 HOU → SAT 46 97.8%
WN2263 SAT → HOU 46 73.9%
WN3590 HOU → SAT 44 72.7%
WN1432 HOU → SAT 42 81.0%
WN2099 SAT → HOU 42 33.3%
WN2117 HOU → SAT 42 54.8%
WN3573 SAT → HOU 42 59.5%
WN3253 SAT → HOU 41 80.0%
WN2411 HOU → SAT 40 70.0%
WN4566 HOU → SAT 40 60.0%
WN165 SAT → HOU 39 59.0%
WN578 HOU → SAT 39 82.1%
WN1051 SAT → HOU 35 88.6%
WN2686 HOU → SAT 33 66.7%
WN3300 HOU → SAT 33 54.6%
WN3420 HOU → SAT 33 60.6%
WN540 SAT → HOU 33 97.0%
WN1197 SAT → HOU 32 78.1%
WN1052 HOU → SAT 31 67.7%
WN2797 SAT → HOU 31 87.1%
WN362 HOU → SAT 31 71.0%
WN1844 HOU → SAT 30 80.0%
WN2084 HOU → SAT 30 93.3%
WN2940 SAT → HOU 30 90.0%

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 191 −27.1% 0 67.0%
June 2026 187 −27.0% 2 64.7%
May 2026 206 −22.0% 0 61.2%
April 2026 196 −22.8% 0 72.4%
March 2026 201 −24.4% 0 69.2%
February 2026 167 −27.7% 1 80.2%
January 2026 194 −18.8% 1 84.5%
December 2025 244 −0.8% 0 82.8%
November 2025 238 −1.7% 0 80.3%
October 2025 279 +62.2% 1 82.4%
September 2025 282 0 87.2%
August 2025 287 0 83.6%
July 2025 262 0 69.1%
June 2025 256 2 68.4%
May 2025 264 1 80.7%
April 2025 254 2 79.5%
March 2025 266 0 84.2%
February 2025 231 0 86.6%
January 2025 239 14 91.2%
December 2024 246 0 78.5%
November 2024 242 0 88.8%
October 2024 172 0 89.0%

How to read this chart

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