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2,093 km · Domestic

George Bush Intercontinental (IAH) – San Diego (SAN)

In July 2026, 288 flights operated between George Bush Intercontinental and San Diego (both directions), and 72.6% 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
January247256▲ 3.6%
February244254▲ 4.1%
March283300▲ 6.0%
April282283▲ 0.4%
May284298▲ 4.9%
June279284▲ 1.8%
July276288▲ 4.3%
August279––
September272––
October294–in progress
November284––
December290––
Year to date (Jan–Jul)1,8951,963▲ 3.6%

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
January85.0%83.6%▼ 1.6%
February87.3%90.6%▲ 3.8%
March89.4%85.7%▼ 4.1%
April88.3%86.9%▼ 1.6%
May77.8%81.9%▲ 5.3%
June72.0%75.4%▲ 4.7%
July74.6%72.6%▼ 2.7%
August78.1%––
September89.7%––
October89.5%–in progress
November78.5%––
December84.5%––
Year-to-date average (Jan–Jul)82.1%82.4%▲ 0.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January110▼ 100.0%
February00–
March14▲ 300.0%
April01–
May60▼ 100.0%
June30▼ 100.0%
July60▼ 100.0%
August3––
September2––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)275▼ 81.5%

By direction

IAH → SAN

Scheduled flights
3,048
Flights operated
3,029
Cancelled
19 · 0.6%
On-time departures
79.5%

SAN → IAH

Scheduled flights
3,048
Flights operated
3,026
Cancelled
22 · 0.7%
On-time departures
86.6%

IAH → SAN and SAN → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 6,096 100.0% 83.1% 41

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 delay06:00–07:00-0.2min · 359 recorded · 355 measured
Gap to highest-delay hour26.8min06:00 ↔ 19:00
Recorded flights6,096IAH–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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 94.7% · 359 recorded · 355 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 08:00 · 94.6% · 334 recorded · 331 measured · Source: the US BTS 09:00 · 86.1% · 623 recorded · 619 measured · Source: the US BTS 10:00 · 89.7% · 621 recorded · 619 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS 12:00 · 83.7% · 950 recorded · 943 measured · Source: the US BTS 13:00 · 79.7% · 257 recorded · 256 measured · Source: the US BTS 14:00 · 81.3% · 285 recorded · 284 measured · Source: the US BTS 15:00 · 80.9% · 450 recorded · 444 measured · Source: the US BTS 16:00 · 82.3% · 492 recorded · 491 measured · Source: the US BTS 17:00 · 79.8% · 274 recorded · 272 measured · Source: the US BTS 18:00 · 75.5% · 535 recorded · 534 measured · Source: the US BTS 19:00 · 61.1% · 276 recorded · 270 measured · Source: the US BTS 20:00 · 79.9% · 381 recorded · 378 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · -0.2 min · 359 recorded · 355 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 08:00 · 2.4 min · 334 recorded · 331 measured · Source: the US BTS 09:00 · 6.7 min · 623 recorded · 619 measured · Source: the US BTS 10:00 · 4.9 min · 621 recorded · 619 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS 12:00 · 7.3 min · 950 recorded · 943 measured · Source: the US BTS 13:00 · 10.6 min · 257 recorded · 256 measured · Source: the US BTS 14:00 · 9.4 min · 285 recorded · 284 measured · Source: the US BTS 15:00 · 10.8 min · 450 recorded · 444 measured · Source: the US BTS 16:00 · 10.1 min · 492 recorded · 491 measured · Source: the US BTS 17:00 · 10.4 min · 274 recorded · 272 measured · Source: the US BTS 18:00 · 16.9 min · 535 recorded · 534 measured · Source: the US BTS 19:00 · 26.6 min · 276 recorded · 270 measured · Source: the US BTS 20:00 · 11.3 min · 381 recorded · 378 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 359 · 359 recorded · 355 measured · Source: the US BTS 07:00 · 84 · 84 recorded · 84 measured · Source: the US BTS 08:00 · 334 · 334 recorded · 331 measured · Source: the US BTS 09:00 · 623 · 623 recorded · 619 measured · Source: the US BTS 10:00 · 621 · 621 recorded · 619 measured · Source: the US BTS 11:00 · 175 · 175 recorded · 175 measured · Source: the US BTS 12:00 · 950 · 950 recorded · 943 measured · Source: the US BTS 13:00 · 257 · 257 recorded · 256 measured · Source: the US BTS 14:00 · 285 · 285 recorded · 284 measured · Source: the US BTS 15:00 · 450 · 450 recorded · 444 measured · Source: the US BTS 16:00 · 492 · 492 recorded · 491 measured · Source: the US BTS 17:00 · 274 · 274 recorded · 272 measured · Source: the US BTS 18:00 · 535 · 535 recorded · 534 measured · Source: the US BTS 19:00 · 276 · 276 recorded · 270 measured · Source: the US BTS 20:00 · 381 · 381 recorded · 378 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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———
05:00No observations———
06:0094.7%-0.2 min355359
07:00Fewer than 200 measured departures—8484
08:0094.6%2.4 min331334
09:0086.1%6.7 min619623
10:0089.7%4.9 min619621
11:00Fewer than 200 measured departures—175175
12:0083.7%7.3 min943950
13:0079.7%10.6 min256257
14:0081.3%9.4 min284285
15:0080.9%10.8 min444450
16:0082.3%10.1 min491492
17:0079.8%10.4 min272274
18:0075.5%16.9 min534535
19:0061.1%26.6 min270276
20:0079.9%11.3 min378381
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 82.0% · 920 recorded · 915 measured · Source: the US BTS Tuesday · 86.2% · 800 recorded · 790 measured · Source: the US BTS Wednesday · 86.1% · 892 recorded · 887 measured · Source: the US BTS Thursday · 80.1% · 910 recorded · 906 measured · Source: the US BTS Friday · 81.8% · 884 recorded · 874 measured · Source: the US BTS Saturday · 82.9% · 774 recorded · 770 measured · Source: the US BTS Sunday · 82.7% · 916 recorded · 913 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 · 10.9 min · 920 recorded · 915 measured · Source: the US BTS Tuesday · 4.9 min · 800 recorded · 790 measured · Source: the US BTS Wednesday · 5.1 min · 892 recorded · 887 measured · Source: the US BTS Thursday · 11.0 min · 910 recorded · 906 measured · Source: the US BTS Friday · 12.0 min · 884 recorded · 874 measured · Source: the US BTS Saturday · 10.8 min · 774 recorded · 770 measured · Source: the US BTS Sunday · 9.9 min · 916 recorded · 913 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 · 920 · 920 recorded · 915 measured · Source: the US BTS Tuesday · 800 · 800 recorded · 790 measured · Source: the US BTS Wednesday · 892 · 892 recorded · 887 measured · Source: the US BTS Thursday · 910 · 910 recorded · 906 measured · Source: the US BTS Friday · 884 · 884 recorded · 874 measured · Source: the US BTS Saturday · 774 · 774 recorded · 770 measured · Source: the US BTS Sunday · 916 · 916 recorded · 913 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday82.0%10.9 min915920
Tuesday86.2%4.9 min790800
Wednesday86.1%5.1 min887892
Thursday80.1%11.0 min906910
Friday81.8%12.0 min874884
Saturday82.9%10.8 min770774
Sunday82.7%9.9 min913916

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 · 84.3% · 514 recorded · 503 measured · Source: the US BTS Feb · 89.0% · 498 recorded · 498 measured · Source: the US BTS Mar · 87.5% · 588 recorded · 583 measured · Source: the US BTS Apr · 87.6% · 566 recorded · 565 measured · Source: the US BTS May · 79.9% · 588 recorded · 582 measured · Source: the US BTS Jun · 73.7% · 566 recorded · 563 measured · Source: the US BTS Jul · 73.6% · 570 recorded · 564 measured · Source: the US BTS Aug · 78.1% · 282 recorded · 279 measured · Source: the US BTS Sep · 89.7% · 274 recorded · 272 measured · Source: the US BTS Oct · 88.8% · 484 recorded · 484 measured · Source: the US BTS Nov · 85.2% · 580 recorded · 580 measured · Source: the US BTS Dec · 81.8% · 586 recorded · 582 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 · 8.3 min · 514 recorded · 503 measured · Source: the US BTS Feb · 3.6 min · 498 recorded · 498 measured · Source: the US BTS Mar · 8.3 min · 588 recorded · 583 measured · Source: the US BTS Apr · 3.4 min · 566 recorded · 565 measured · Source: the US BTS May · 11.9 min · 588 recorded · 582 measured · Source: the US BTS Jun · 18.4 min · 566 recorded · 563 measured · Source: the US BTS Jul · 15.9 min · 570 recorded · 564 measured · Source: the US BTS Aug · 12.8 min · 282 recorded · 279 measured · Source: the US BTS Sep · 4.7 min · 274 recorded · 272 measured · Source: the US BTS Oct · 2.5 min · 484 recorded · 484 measured · Source: the US BTS Nov · 5.1 min · 580 recorded · 580 measured · Source: the US BTS Dec · 13.9 min · 586 recorded · 582 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 · 514 · 514 recorded · 503 measured · Source: the US BTS Feb · 498 · 498 recorded · 498 measured · Source: the US BTS Mar · 588 · 588 recorded · 583 measured · Source: the US BTS Apr · 566 · 566 recorded · 565 measured · Source: the US BTS May · 588 · 588 recorded · 582 measured · Source: the US BTS Jun · 566 · 566 recorded · 563 measured · Source: the US BTS Jul · 570 · 570 recorded · 564 measured · Source: the US BTS Aug · 282 · 282 recorded · 279 measured · Source: the US BTS Sep · 274 · 274 recorded · 272 measured · Source: the US BTS Oct · 484 · 484 recorded · 484 measured · Source: the US BTS Nov · 580 · 580 recorded · 580 measured · Source: the US BTS Dec · 586 · 586 recorded · 582 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.3%8.3 min503514
Feb89.0%3.6 min498498
Mar87.5%8.3 min583588
Apr87.6%3.4 min565566
May79.9%11.9 min582588
Jun73.7%18.4 min563566
Jul73.6%15.9 min564570
Aug78.1%12.8 min279282
Sep89.7%4.7 min272274
Oct88.8%2.5 min484484
Nov85.2%5.1 min580580
Dec81.8%13.9 min582586

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 82.5% 5,029
  • Delayed >15 min 16.8% 1,026
  • Cancelled 0.7% 41
  • 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

56
56 of 56
Flight numbersBy direction DeparturesOn time
UA2491 IAH → SAN 604 86.5%
UA2237 SAN → IAH 393 81.3%
UA2140 SAN → IAH 377 87.5%
UA2486 IAH → SAN 273 79.3%
UA1373 IAH → SAN 253 78.3%
UA2399 IAH → SAN 251 78.9%
UA2674 IAH → SAN 247 68.6%
UA496 SAN → IAH 239 94.1%
UA2472 SAN → IAH 194 97.4%
UA2683 SAN → IAH 151 84.8%
UA1179 SAN → IAH 139 72.8%
UA465 SAN → IAH 134 77.6%
UA2690 IAH → SAN 117 69.2%
UA1913 IAH → SAN 109 77.1%
UA556 SAN → IAH 100 91.8%
UA1980 SAN → IAH 98 93.8%
UA1072 IAH → SAN 77 81.8%
UA1998 SAN → IAH 74 87.8%
UA2165 SAN → IAH 72 91.7%
UA1382 SAN → IAH 71 76.1%
UA618 SAN → IAH 71 67.6%
UA2029 SAN → IAH 70 72.5%
UA222 IAH → SAN 70 85.7%
UA2622 SAN → IAH 68 94.1%
UA2638 IAH → SAN 68 91.0%
UA1911 IAH → SAN 64 81.0%
UA1627 SAN → IAH 56 89.1%
UA1868 IAH → SAN 53 67.9%
UA1950 SAN → IAH 52 90.2%
UA2371 IAH → SAN 49 93.9%
UA2300 IAH → SAN 45 82.2%
UA1177 SAN → IAH 37 94.4%
UA1511 IAH → SAN 37 80.6%
UA1532 IAH → SAN 37 77.8%
UA1571 SAN → IAH 37 91.9%
UA2038 IAH → SAN 37 91.9%
UA2437 SAN → IAH 37 91.9%
UA2484 SAN → IAH 37 94.6%
UA2760 SAN → IAH 37 97.3%
UA510 IAH → SAN 37 86.5%
UA1216 IAH → SAN 36 69.4%
UA1823 SAN → IAH 36 94.1%
UA2407 IAH → SAN 36 55.6%
UA2751 IAH → SAN 36 77.8%
UA669 IAH → SAN 36 88.9%
UA1501 SAN → IAH 35 100.0%
UA2322 SAN → IAH 35 88.6%
UA2418 IAH → SAN 35 77.1%
UA2461 IAH → SAN 35 74.3%
UA2622 IAH → SAN 35 85.7%
UA1302 SAN → IAH 33 90.9%
UA1756 SAN → IAH 32 96.9%
UA2203 IAH → SAN 32 84.4%
UA2321 SAN → IAH 32 90.6%
UA1581 IAH → SAN 31 90.3%
UA743 IAH → SAN 31 54.8%

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 288 +4.3% 0 72.6%
June 2026 284 +1.8% 0 75.4%
May 2026 298 +4.9% 0 81.9%
April 2026 283 +0.4% 1 86.9%
March 2026 300 +6.0% 4 85.7%
February 2026 254 +4.1% 0 90.6%
January 2026 256 +3.6% 0 83.6%
December 2025 290 −0.7% 0 84.5%
November 2025 284 −4.1% 0 78.5%
October 2025 294 +54.7% 0 89.5%
September 2025 272 2 89.7%
August 2025 279 3 78.1%
July 2025 276 6 74.6%
June 2025 279 3 72.0%
May 2025 284 6 77.8%
April 2025 282 0 88.3%
March 2025 283 1 89.4%
February 2025 244 0 87.3%
January 2025 247 11 85.0%
December 2024 292 4 79.1%
November 2024 296 0 91.6%
October 2024 190 0 87.9%

How to read this chart

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