Aviation Data
EN
EnglishTiếng Việt

1,118 km · Domestic

Hartsfield Jackson Atlanta (ATL) – William P. Hobby (HOU)

In July 2026, 471 flights operated between Hartsfield Jackson Atlanta and William P. Hobby (both directions), and 68.2% 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
January417426▲ 2.2%
February420396▼ 5.7%
March492463▼ 5.9%
April501468▼ 6.6%
May537472▼ 12.1%
June524461▼ 12.0%
July548471▼ 14.1%
August524––
September500––
October509–in progress
November495––
December502––
Year to date (Jan–Jul)3,4393,157▼ 8.2%

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
January79.6%85.4%▲ 7.3%
February79.0%81.8%▲ 3.5%
March85.0%70.6%▼ 16.9%
April80.4%80.6%▲ 0.2%
May73.6%74.6%▲ 1.4%
June67.6%72.9%▲ 7.8%
July70.6%68.2%▼ 3.4%
August80.5%––
September89.2%––
October79.4%–in progress
November77.8%––
December77.1%––
Year-to-date average (Jan–Jul)76.5%76.3%▼ 0.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January4011▼ 72.5%
February12▲ 100.0%
March015–
April02–
May212▲ 500.0%
June143▼ 78.6%
July28▲ 300.0%
August0––
September0––
October3–in progress
November12––
December6––
Year to date (Jan–Jul)5953▼ 10.2%

Airlines on this route

  1. Southwest Airlines 50.8%
  2. Delta Air Lines 49.2%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → HOU

Scheduled flights
5,348
Flights operated
5,284
Cancelled
64 · 1.2%
On-time departures
77.3%

HOU → ATL

Scheduled flights
5,324
Flights operated
5,255
Cancelled
69 · 1.3%
On-time departures
79.0%

ATL → HOU and HOU → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 5,426 50.8% 74.8% 48
Delta Air Lines DL 5,246 49.2% 81.6% 85

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 delay06:00–07:002.4min · 1,207 recorded · 1,193 measured
Gap to highest-delay hour23.6min06:00 ↔ 20:00
Recorded flights10,672ATL–HOU

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 · 112 recorded · 109 measured · Source: the US BTS 06:00 · 93.8% · 1,207 recorded · 1,193 measured · Source: the US BTS 07:00 · 94.0% · 309 recorded · 301 measured · Source: the US BTS 08:00 · 90.0% · 807 recorded · 796 measured · Source: the US BTS 09:00 · 85.7% · 351 recorded · 343 measured · Source: the US BTS 10:00 · 83.2% · 906 recorded · 889 measured · Source: the US BTS 11:00 · 84.1% · 731 recorded · 721 measured · Source: the US BTS 12:00 · 78.7% · 652 recorded · 647 measured · Source: the US BTS 13:00 · 81.3% · 584 recorded · 583 measured · Source: the US BTS 14:00 · 75.5% · 785 recorded · 774 measured · Source: the US BTS 15:00 · 72.6% · 501 recorded · 497 measured · Source: the US BTS 16:00 · 74.2% · 732 recorded · 724 measured · Source: the US BTS 17:00 · 67.2% · 605 recorded · 600 measured · Source: the US BTS 18:00 · 67.8% · 859 recorded · 842 measured · Source: the US BTS 19:00 · 55.2% · 388 recorded · 388 measured · Source: the US BTS 20:00 · 56.4% · 394 recorded · 392 measured · Source: the US BTS 21:00 · 72.7% · 596 recorded · 587 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 153 recorded · 153 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 · 112 recorded · 109 measured · Source: the US BTS 06:00 · 2.4 min · 1,207 recorded · 1,193 measured · Source: the US BTS 07:00 · 3.7 min · 309 recorded · 301 measured · Source: the US BTS 08:00 · 3.5 min · 807 recorded · 796 measured · Source: the US BTS 09:00 · 7.8 min · 351 recorded · 343 measured · Source: the US BTS 10:00 · 8.1 min · 906 recorded · 889 measured · Source: the US BTS 11:00 · 6.0 min · 731 recorded · 721 measured · Source: the US BTS 12:00 · 12.5 min · 652 recorded · 647 measured · Source: the US BTS 13:00 · 10.5 min · 584 recorded · 583 measured · Source: the US BTS 14:00 · 12.8 min · 785 recorded · 774 measured · Source: the US BTS 15:00 · 15.5 min · 501 recorded · 497 measured · Source: the US BTS 16:00 · 14.7 min · 732 recorded · 724 measured · Source: the US BTS 17:00 · 20.9 min · 605 recorded · 600 measured · Source: the US BTS 18:00 · 19.9 min · 859 recorded · 842 measured · Source: the US BTS 19:00 · 23.8 min · 388 recorded · 388 measured · Source: the US BTS 20:00 · 26.0 min · 394 recorded · 392 measured · Source: the US BTS 21:00 · 13.3 min · 596 recorded · 587 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 153 recorded · 153 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 · 112 · 112 recorded · 109 measured · Source: the US BTS 06:00 · 1,207 · 1,207 recorded · 1,193 measured · Source: the US BTS 07:00 · 309 · 309 recorded · 301 measured · Source: the US BTS 08:00 · 807 · 807 recorded · 796 measured · Source: the US BTS 09:00 · 351 · 351 recorded · 343 measured · Source: the US BTS 10:00 · 906 · 906 recorded · 889 measured · Source: the US BTS 11:00 · 731 · 731 recorded · 721 measured · Source: the US BTS 12:00 · 652 · 652 recorded · 647 measured · Source: the US BTS 13:00 · 584 · 584 recorded · 583 measured · Source: the US BTS 14:00 · 785 · 785 recorded · 774 measured · Source: the US BTS 15:00 · 501 · 501 recorded · 497 measured · Source: the US BTS 16:00 · 732 · 732 recorded · 724 measured · Source: the US BTS 17:00 · 605 · 605 recorded · 600 measured · Source: the US BTS 18:00 · 859 · 859 recorded · 842 measured · Source: the US BTS 19:00 · 388 · 388 recorded · 388 measured · Source: the US BTS 20:00 · 394 · 394 recorded · 392 measured · Source: the US BTS 21:00 · 596 · 596 recorded · 587 measured · Source: the US BTS 22:00 · 153 · 153 recorded · 153 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———
05:00Fewer than 200 measured departures—109112
06:0093.8%2.4 min1,1931,207
07:0094.0%3.7 min301309
08:0090.0%3.5 min796807
09:0085.7%7.8 min343351
10:0083.2%8.1 min889906
11:0084.1%6.0 min721731
12:0078.7%12.5 min647652
13:0081.3%10.5 min583584
14:0075.5%12.8 min774785
15:0072.6%15.5 min497501
16:0074.2%14.7 min724732
17:0067.2%20.9 min600605
18:0067.8%19.9 min842859
19:0055.2%23.8 min388388
20:0056.4%26.0 min392394
21:0072.7%13.3 min587596
22:00Fewer than 200 measured departures—153153
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 77.5% · 1,594 recorded · 1,581 measured · Source: the US BTS Tuesday · 81.3% · 1,498 recorded · 1,478 measured · Source: the US BTS Wednesday · 81.6% · 1,496 recorded · 1,490 measured · Source: the US BTS Thursday · 78.7% · 1,572 recorded · 1,565 measured · Source: the US BTS Friday · 78.2% · 1,587 recorded · 1,557 measured · Source: the US BTS Saturday · 77.6% · 1,330 recorded · 1,305 measured · Source: the US BTS Sunday · 72.4% · 1,595 recorded · 1,563 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 · 12.8 min · 1,594 recorded · 1,581 measured · Source: the US BTS Tuesday · 8.4 min · 1,498 recorded · 1,478 measured · Source: the US BTS Wednesday · 8.2 min · 1,496 recorded · 1,490 measured · Source: the US BTS Thursday · 11.7 min · 1,572 recorded · 1,565 measured · Source: the US BTS Friday · 12.4 min · 1,587 recorded · 1,557 measured · Source: the US BTS Saturday · 14.7 min · 1,330 recorded · 1,305 measured · Source: the US BTS Sunday · 14.6 min · 1,595 recorded · 1,563 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 · 1,594 · 1,594 recorded · 1,581 measured · Source: the US BTS Tuesday · 1,498 · 1,498 recorded · 1,478 measured · Source: the US BTS Wednesday · 1,496 · 1,496 recorded · 1,490 measured · Source: the US BTS Thursday · 1,572 · 1,572 recorded · 1,565 measured · Source: the US BTS Friday · 1,587 · 1,587 recorded · 1,557 measured · Source: the US BTS Saturday · 1,330 · 1,330 recorded · 1,305 measured · Source: the US BTS Sunday · 1,595 · 1,595 recorded · 1,563 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
Monday77.5%12.8 min1,5811,594
Tuesday81.3%8.4 min1,4781,498
Wednesday81.6%8.2 min1,4901,496
Thursday78.7%11.7 min1,5651,572
Friday78.2%12.4 min1,5571,587
Saturday77.6%14.7 min1,3051,330
Sunday72.4%14.6 min1,5631,595

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 · 82.6% · 894 recorded · 843 measured · Source: the US BTS Feb · 80.4% · 819 recorded · 816 measured · Source: the US BTS Mar · 78.0% · 970 recorded · 955 measured · Source: the US BTS Apr · 80.5% · 971 recorded · 969 measured · Source: the US BTS May · 74.0% · 1,023 recorded · 1,009 measured · Source: the US BTS Jun · 70.1% · 1,002 recorded · 985 measured · Source: the US BTS Jul · 69.5% · 1,029 recorded · 1,019 measured · Source: the US BTS Aug · 80.5% · 524 recorded · 524 measured · Source: the US BTS Sep · 89.2% · 500 recorded · 500 measured · Source: the US BTS Oct · 81.8% · 866 recorded · 863 measured · Source: the US BTS Nov · 81.9% · 1,024 recorded · 1,012 measured · Source: the US BTS Dec · 77.6% · 1,050 recorded · 1,044 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 · 8.2 min · 894 recorded · 843 measured · Source: the US BTS Feb · 9.5 min · 819 recorded · 816 measured · Source: the US BTS Mar · 10.8 min · 970 recorded · 955 measured · Source: the US BTS Apr · 9.8 min · 971 recorded · 969 measured · Source: the US BTS May · 13.9 min · 1,023 recorded · 1,009 measured · Source: the US BTS Jun · 18.5 min · 1,002 recorded · 985 measured · Source: the US BTS Jul · 20.1 min · 1,029 recorded · 1,019 measured · Source: the US BTS Aug · 13.4 min · 524 recorded · 524 measured · Source: the US BTS Sep · 1.9 min · 500 recorded · 500 measured · Source: the US BTS Oct · 10.0 min · 866 recorded · 863 measured · Source: the US BTS Nov · 8.7 min · 1,024 recorded · 1,012 measured · Source: the US BTS Dec · 11.4 min · 1,050 recorded · 1,044 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 · 894 · 894 recorded · 843 measured · Source: the US BTS Feb · 819 · 819 recorded · 816 measured · Source: the US BTS Mar · 970 · 970 recorded · 955 measured · Source: the US BTS Apr · 971 · 971 recorded · 969 measured · Source: the US BTS May · 1,023 · 1,023 recorded · 1,009 measured · Source: the US BTS Jun · 1,002 · 1,002 recorded · 985 measured · Source: the US BTS Jul · 1,029 · 1,029 recorded · 1,019 measured · Source: the US BTS Aug · 524 · 524 recorded · 524 measured · Source: the US BTS Sep · 500 · 500 recorded · 500 measured · Source: the US BTS Oct · 866 · 866 recorded · 863 measured · Source: the US BTS Nov · 1,024 · 1,024 recorded · 1,012 measured · Source: the US BTS Dec · 1,050 · 1,050 recorded · 1,044 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
Jan82.6%8.2 min843894
Feb80.4%9.5 min816819
Mar78.0%10.8 min955970
Apr80.5%9.8 min969971
May74.0%13.9 min1,0091,023
Jun70.1%18.5 min9851,002
Jul69.5%20.1 min1,0191,029
Aug80.5%13.4 min524524
Sep89.2%1.9 min500500
Oct81.8%10.0 min863866
Nov81.9%8.7 min1,0121,024
Dec77.6%11.4 min1,0441,050

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 77.2% 8,235
  • Delayed >15 min 21.6% 2,304
  • Cancelled 1.2% 133
  • 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

84
84 of 84
Flight numbersBy direction DeparturesOn time
DL1509 ATL → HOU 658 91.1%
DL1509 HOU → ATL 658 84.9%
DL2051 ATL → HOU 658 73.7%
DL2557 HOU → ATL 658 92.3%
DL2381 ATL → HOU 433 79.6%
DL2381 HOU → ATL 432 76.4%
DL1195 HOU → ATL 428 76.7%
DL1195 ATL → HOU 428 83.3%
DL1254 HOU → ATL 393 75.1%
DL1254 ATL → HOU 388 73.0%
WN1326 ATL → HOU 120 87.9%
WN2722 HOU → ATL 104 77.5%
WN2900 ATL → HOU 90 78.4%
WN1913 HOU → ATL 89 82.6%
WN2534 HOU → ATL 78 88.0%
WN4335 ATL → HOU 74 73.6%
WN993 HOU → ATL 74 95.8%
WN335 HOU → ATL 63 76.2%
WN2894 HOU → ATL 61 93.3%
WN3522 ATL → HOU 61 54.1%
WN3224 ATL → HOU 60 78.3%
WN4079 HOU → ATL 59 50.0%
WN1848 HOU → ATL 58 89.7%
WN241 ATL → HOU 58 53.5%
WN2900 HOU → ATL 58 75.9%
WN3113 ATL → HOU 58 94.7%
WN3232 ATL → HOU 58 100.0%
WN3369 HOU → ATL 58 81.0%
WN636 ATL → HOU 58 94.8%
WN934 ATL → HOU 58 74.1%
WN239 ATL → HOU 57 83.9%
WN370 ATL → HOU 54 87.0%
WN373 ATL → HOU 54 67.9%
WN208 ATL → HOU 53 86.8%
WN3720 ATL → HOU 52 88.2%
WN110 HOU → ATL 50 92.0%
WN1263 HOU → ATL 50 78.0%
WN1947 HOU → ATL 50 84.0%
WN2291 HOU → ATL 50 52.0%
WN853 HOU → ATL 50 84.0%
WN900 ATL → HOU 50 72.0%
WN4507 ATL → HOU 49 63.3%
WN1586 ATL → HOU 48 97.9%
WN2705 ATL → HOU 47 73.9%
WN2811 HOU → ATL 46 88.9%
WN433 HOU → ATL 46 84.4%
WN2965 HOU → ATL 45 40.9%
WN207 ATL → HOU 43 39.5%
WN1045 HOU → ATL 42 90.5%
WN1692 ATL → HOU 42 64.3%
WN2312 HOU → ATL 42 90.5%
WN2873 HOU → ATL 42 65.9%
WN376 ATL → HOU 42 88.1%
WN380 ATL → HOU 42 71.4%
WN385 ATL → HOU 42 50.0%
WN1861 ATL → HOU 40 55.0%
WN4729 ATL → HOU 40 92.3%
WN872 ATL → HOU 40 82.5%
WN1060 HOU → ATL 37 100.0%
WN2857 HOU → ATL 37 81.1%
WN372 ATL → HOU 36 60.0%
DL1033 ATL → HOU 34 78.8%
DL1033 HOU → ATL 34 81.8%
WN1730 HOU → ATL 34 76.5%
WN2622 HOU → ATL 34 94.1%
WN4914 ATL → HOU 34 70.6%
WN1467 ATL → HOU 33 81.8%
WN1948 HOU → ATL 33 40.6%
WN206 HOU → ATL 33 69.7%
WN3104 HOU → ATL 33 18.2%
WN509 HOU → ATL 33 93.9%
WN2288 HOU → ATL 32 71.9%
WN2477 HOU → ATL 32 74.2%
WN2996 HOU → ATL 32 59.4%
WN3076 ATL → HOU 32 48.4%
WN611 HOU → ATL 32 81.3%
WN1172 HOU → ATL 31 64.5%
WN2870 ATL → HOU 31 43.3%
WN377 ATL → HOU 31 41.9%
WN408 ATL → HOU 31 87.1%
WN4547 HOU → ATL 31 71.0%
WN1229 HOU → ATL 30 100.0%
WN3223 HOU → ATL 30 90.0%
WN4767 ATL → HOU 30 53.3%

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 471 −14.1% 8 68.2%
June 2026 461 −12.0% 3 72.9%
May 2026 472 −12.1% 12 74.6%
April 2026 468 −6.6% 2 80.6%
March 2026 463 −5.9% 15 70.6%
February 2026 396 −5.7% 2 81.8%
January 2026 426 +2.2% 11 85.4%
December 2025 502 −7.4% 6 77.1%
November 2025 495 −4.3% 12 77.8%
October 2025 509 +43.8% 3 79.4%
September 2025 500 0 89.2%
August 2025 524 0 80.5%
July 2025 548 2 70.6%
June 2025 524 14 67.6%
May 2025 537 2 73.6%
April 2025 501 0 80.4%
March 2025 492 0 85.0%
February 2025 420 1 79.0%
January 2025 417 40 79.6%
December 2024 542 0 78.0%
November 2024 517 0 85.9%
October 2024 354 0 85.3%

How to read this chart

Loading the guide…