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2,109 km · Domestic

William P. Hobby (HOU) – San Diego (SAN)

In July 2026, 178 flights operated between William P. Hobby and San Diego (both directions), and 59.0% 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
January123144▲ 17.1%
February112142▲ 26.8%
March152166▲ 9.2%
April131170▲ 29.8%
May126173▲ 37.3%
June165172▲ 4.2%
July176178▲ 1.1%
August130––
September119––
October173–in progress
November165––
December181––
Year to date (Jan–Jul)9851,145▲ 16.2%

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
January85.4%81.3%▼ 4.8%
February85.7%79.6%▼ 7.1%
March85.5%67.5%▼ 21.1%
April80.2%71.8%▼ 10.5%
May65.1%61.8%▼ 5.1%
June66.7%55.2%▼ 17.2%
July63.6%59.0%▼ 7.2%
August84.6%––
September85.7%––
October69.9%–in progress
November73.3%––
December69.1%––
Year-to-date average (Jan–Jul)76.0%68.0%▼ 10.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January60▼ 100.0%
February00–
March00–
April00–
May01–
June00–
July00–
August0––
September1––
October1–in progress
November7––
December1––
Year to date (Jan–Jul)61▼ 83.3%

By direction

HOU → SAN

Scheduled flights
1,653
Flights operated
1,642
Cancelled
11 · 0.7%
On-time departures
74.4%

SAN → HOU

Scheduled flights
1,627
Flights operated
1,618
Cancelled
9 · 0.6%
On-time departures
71.1%

HOU → SAN and SAN → HOU counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 3,280 100.0% 72.8% 20

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 delay06:00–07:001.4min · 351 recorded · 349 measured
Gap to highest-delay hour23.7min06:00 ↔ 14:00
Recorded flights3,280HOU–SAN

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 · 30 recorded · 30 measured · Source: the US BTS 06:00 · 96.9% · 351 recorded · 349 measured · Source: the US BTS 07:00 · 90.3% · 323 recorded · 321 measured · Source: the US BTS 08:00 · 90.7% · 455 recorded · 452 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 136 recorded · 136 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 48 recorded · 46 measured · Source: the US BTS 12:00 · 72.9% · 237 recorded · 236 measured · Source: the US BTS 13:00 · 59.1% · 208 recorded · 208 measured · Source: the US BTS 14:00 · 53.3% · 272 recorded · 272 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 128 recorded · 125 measured · Source: the US BTS 18:00 · 53.4% · 210 recorded · 208 measured · Source: the US BTS 19:00 · 56.5% · 327 recorded · 324 measured · Source: the US BTS 20:00 · 53.3% · 227 recorded · 225 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 102 recorded · 102 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 16 recorded · 16 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 · 30 recorded · 30 measured · Source: the US BTS 06:00 · 1.4 min · 351 recorded · 349 measured · Source: the US BTS 07:00 · 4.1 min · 323 recorded · 321 measured · Source: the US BTS 08:00 · 4.2 min · 455 recorded · 452 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 136 recorded · 136 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 48 recorded · 46 measured · Source: the US BTS 12:00 · 13.0 min · 237 recorded · 236 measured · Source: the US BTS 13:00 · 19.9 min · 208 recorded · 208 measured · Source: the US BTS 14:00 · 25.1 min · 272 recorded · 272 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 128 recorded · 125 measured · Source: the US BTS 18:00 · 23.7 min · 210 recorded · 208 measured · Source: the US BTS 19:00 · 23.2 min · 327 recorded · 324 measured · Source: the US BTS 20:00 · 22.7 min · 227 recorded · 225 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 102 recorded · 102 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 16 recorded · 16 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 · 30 · 30 recorded · 30 measured · Source: the US BTS 06:00 · 351 · 351 recorded · 349 measured · Source: the US BTS 07:00 · 323 · 323 recorded · 321 measured · Source: the US BTS 08:00 · 455 · 455 recorded · 452 measured · Source: the US BTS 09:00 · 136 · 136 recorded · 136 measured · Source: the US BTS 10:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 11:00 · 48 · 48 recorded · 46 measured · Source: the US BTS 12:00 · 237 · 237 recorded · 236 measured · Source: the US BTS 13:00 · 208 · 208 recorded · 208 measured · Source: the US BTS 14:00 · 272 · 272 recorded · 272 measured · Source: the US BTS 15:00 · 105 · 105 recorded · 105 measured · Source: the US BTS 16:00 · 100 · 100 recorded · 100 measured · Source: the US BTS 17:00 · 128 · 128 recorded · 125 measured · Source: the US BTS 18:00 · 210 · 210 recorded · 208 measured · Source: the US BTS 19:00 · 327 · 327 recorded · 324 measured · Source: the US BTS 20:00 · 227 · 227 recorded · 225 measured · Source: the US BTS 21:00 · 102 · 102 recorded · 102 measured · Source: the US BTS 22:00 · 16 · 16 recorded · 16 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—3030
06:0096.9%1.4 min349351
07:0090.3%4.1 min321323
08:0090.7%4.2 min452455
09:00Fewer than 200 measured departures—136136
10:00Fewer than 200 measured departures—55
11:00Fewer than 200 measured departures—4648
12:0072.9%13.0 min236237
13:0059.1%19.9 min208208
14:0053.3%25.1 min272272
15:00Fewer than 200 measured departures—105105
16:00Fewer than 200 measured departures—100100
17:00Fewer than 200 measured departures—125128
18:0053.4%23.7 min208210
19:0056.5%23.2 min324327
20:0053.3%22.7 min225227
21:00Fewer than 200 measured departures—102102
22:00Fewer than 200 measured departures—1616
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 73.5% · 504 recorded · 501 measured · Source: the US BTS Tuesday · 77.0% · 472 recorded · 466 measured · Source: the US BTS Wednesday · 75.3% · 468 recorded · 465 measured · Source: the US BTS Thursday · 65.8% · 496 recorded · 494 measured · Source: the US BTS Friday · 72.2% · 500 recorded · 496 measured · Source: the US BTS Saturday · 77.8% · 382 recorded · 382 measured · Source: the US BTS Sunday · 69.1% · 458 recorded · 456 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 · 12.0 min · 504 recorded · 501 measured · Source: the US BTS Tuesday · 10.5 min · 472 recorded · 466 measured · Source: the US BTS Wednesday · 11.9 min · 468 recorded · 465 measured · Source: the US BTS Thursday · 18.1 min · 496 recorded · 494 measured · Source: the US BTS Friday · 17.5 min · 500 recorded · 496 measured · Source: the US BTS Saturday · 10.2 min · 382 recorded · 382 measured · Source: the US BTS Sunday · 15.6 min · 458 recorded · 456 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 · 504 · 504 recorded · 501 measured · Source: the US BTS Tuesday · 472 · 472 recorded · 466 measured · Source: the US BTS Wednesday · 468 · 468 recorded · 465 measured · Source: the US BTS Thursday · 496 · 496 recorded · 494 measured · Source: the US BTS Friday · 500 · 500 recorded · 496 measured · Source: the US BTS Saturday · 382 · 382 recorded · 382 measured · Source: the US BTS Sunday · 458 · 458 recorded · 456 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.5%12.0 min501504
Tuesday77.0%10.5 min466472
Wednesday75.3%11.9 min465468
Thursday65.8%18.1 min494496
Friday72.2%17.5 min496500
Saturday77.8%10.2 min382382
Sunday69.1%15.6 min456458

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 · 83.2% · 273 recorded · 267 measured · Source: the US BTS Feb · 82.3% · 254 recorded · 254 measured · Source: the US BTS Mar · 76.1% · 318 recorded · 318 measured · Source: the US BTS Apr · 75.4% · 301 recorded · 301 measured · Source: the US BTS May · 63.2% · 300 recorded · 299 measured · Source: the US BTS Jun · 60.8% · 337 recorded · 337 measured · Source: the US BTS Jul · 61.3% · 354 recorded · 354 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 130 recorded · 130 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS Oct · 75.7% · 268 recorded · 267 measured · Source: the US BTS Nov · 78.8% · 300 recorded · 293 measured · Source: the US BTS Dec · 67.3% · 325 recorded · 321 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 · 7.7 min · 273 recorded · 267 measured · Source: the US BTS Feb · 8.6 min · 254 recorded · 254 measured · Source: the US BTS Mar · 11.9 min · 318 recorded · 318 measured · Source: the US BTS Apr · 10.7 min · 301 recorded · 301 measured · Source: the US BTS May · 18.8 min · 300 recorded · 299 measured · Source: the US BTS Jun · 20.7 min · 337 recorded · 337 measured · Source: the US BTS Jul · 21.8 min · 354 recorded · 354 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 130 recorded · 130 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS Oct · 10.6 min · 268 recorded · 267 measured · Source: the US BTS Nov · 10.0 min · 300 recorded · 293 measured · Source: the US BTS Dec · 18.4 min · 325 recorded · 321 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 · 273 · 273 recorded · 267 measured · Source: the US BTS Feb · 254 · 254 recorded · 254 measured · Source: the US BTS Mar · 318 · 318 recorded · 318 measured · Source: the US BTS Apr · 301 · 301 recorded · 301 measured · Source: the US BTS May · 300 · 300 recorded · 299 measured · Source: the US BTS Jun · 337 · 337 recorded · 337 measured · Source: the US BTS Jul · 354 · 354 recorded · 354 measured · Source: the US BTS Aug · 130 · 130 recorded · 130 measured · Source: the US BTS Sep · 120 · 120 recorded · 119 measured · Source: the US BTS Oct · 268 · 268 recorded · 267 measured · Source: the US BTS Nov · 300 · 300 recorded · 293 measured · Source: the US BTS Dec · 325 · 325 recorded · 321 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
Jan83.2%7.7 min267273
Feb82.3%8.6 min254254
Mar76.1%11.9 min318318
Apr75.4%10.7 min301301
May63.2%18.8 min299300
Jun60.8%20.7 min337337
Jul61.3%21.8 min354354
AugFewer than 200 measured departures—130130
SepFewer than 200 measured departures—119120
Oct75.7%10.6 min267268
Nov78.8%10.0 min293300
Dec67.3%18.4 min321325

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 72.3% 2,372
  • Delayed >15 min 27.1% 888
  • Cancelled 0.6% 20
  • 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

39
39 of 39
Flight numbersBy direction DeparturesOn time
WN324 SAN → HOU 118 87.9%
WN4933 HOU → SAN 67 83.6%
WN2981 HOU → SAN 64 67.2%
WN4357 SAN → HOU 60 51.7%
WN4544 SAN → HOU 60 96.7%
WN2072 HOU → SAN 58 50.0%
WN2912 SAN → HOU 58 82.8%
WN1798 SAN → HOU 57 38.6%
WN3824 HOU → SAN 57 86.0%
WN4675 SAN → HOU 57 43.9%
WN1052 HOU → SAN 55 88.7%
WN4764 HOU → SAN 52 40.4%
WN2410 HOU → SAN 51 56.9%
WN3152 HOU → SAN 50 60.0%
WN342 SAN → HOU 50 66.0%
WN3061 HOU → SAN 49 53.1%
WN4078 SAN → HOU 49 57.1%
WN2555 HOU → SAN 47 91.5%
WN3198 SAN → HOU 47 83.0%
WN1158 SAN → HOU 46 88.9%
WN2984 HOU → SAN 45 72.7%
WN2250 HOU → SAN 44 90.9%
WN1064 HOU → SAN 42 90.2%
WN1201 HOU → SAN 42 92.9%
WN1664 SAN → HOU 42 92.9%
WN2407 HOU → SAN 42 90.2%
WN2471 SAN → HOU 42 48.8%
WN2980 HOU → SAN 42 81.0%
WN4486 HOU → SAN 42 38.1%
WN4225 SAN → HOU 39 46.2%
WN2209 HOU → SAN 35 80.0%
WN3212 SAN → HOU 34 29.4%
WN4359 SAN → HOU 34 94.1%
WN2182 HOU → SAN 33 36.4%
WN2757 HOU → SAN 33 90.9%
WN3290 HOU → SAN 33 84.9%
WN2281 HOU → SAN 32 78.1%
WN4076 SAN → HOU 32 93.8%
WN2691 HOU → SAN 31 51.6%

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 178 +1.1% 0 59.0%
June 2026 172 +4.2% 0 55.2%
May 2026 173 +37.3% 1 61.8%
April 2026 170 +29.8% 0 71.8%
March 2026 166 +9.2% 0 67.5%
February 2026 142 +26.8% 0 79.6%
January 2026 144 +17.1% 0 81.3%
December 2025 181 +29.3% 1 69.1%
November 2025 165 +28.9% 7 73.3%
October 2025 173 +84.0% 1 69.9%
September 2025 119 1 85.7%
August 2025 130 0 84.6%
July 2025 176 0 63.6%
June 2025 165 0 66.7%
May 2025 126 0 65.1%
April 2025 131 0 80.2%
March 2025 152 0 85.5%
February 2025 112 0 85.7%
January 2025 123 6 85.4%
December 2024 140 3 65.0%
November 2024 128 0 85.9%
October 2024 94 0 86.2%

How to read this chart

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