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1,610 km · Domestic

John Glenn Columbus (CMH) – William P. Hobby (HOU)

In July 2026, 62 flights operated between John Glenn Columbus and William P. Hobby (both directions), and 71.0% 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
January5452▼ 3.7%
February5254▲ 3.8%
March62620.0%
April5960▲ 1.7%
May62620.0%
June60600.0%
July62620.0%
August63––
September60––
October62–in progress
November52––
December58––
Year to date (Jan–Jul)411412▲ 0.2%

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
January72.2%76.9%▲ 6.5%
February82.7%72.2%▼ 12.7%
March80.6%58.1%▼ 27.9%
April84.7%71.7%▼ 15.3%
May83.9%79.0%▼ 5.8%
June66.7%68.3%▲ 2.4%
July64.5%71.0%▲ 10.1%
August82.5%––
September86.7%––
October80.6%–in progress
November84.6%––
December84.5%––
Year-to-date average (Jan–Jul)76.5%71.0%▼ 7.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January220.0%
February00–
March00–
April10▼ 100.0%
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)32▼ 33.3%

By direction

CMH → HOU

Scheduled flights
636
Flights operated
632
Cancelled
4 · 0.6%
On-time departures
79.6%

HOU → CMH

Scheduled flights
637
Flights operated
635
Cancelled
2 · 0.3%
On-time departures
73.7%

CMH → HOU and HOU → CMH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,273 100.0% 76.6% 6

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 13, 2024 → Jul 31, 2026

Recorded flights1,273CMH–HOU

Departure hour

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 · 5 · 5 recorded · 5 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 32 · 32 recorded · 32 measured · Source: the US BTS 08:00 · 37 · 37 recorded · 37 measured · Source: the US BTS 09:00 · 63 · 63 recorded · 63 measured · Source: the US BTS 10:00 · 93 · 93 recorded · 93 measured · Source: the US BTS 11:00 · 90 · 90 recorded · 88 measured · Source: the US BTS 12:00 · 71 · 71 recorded · 70 measured · Source: the US BTS 13:00 · 167 · 167 recorded · 166 measured · Source: the US BTS 14:00 · 83 · 83 recorded · 83 measured · Source: the US BTS 15:00 · 152 · 152 recorded · 152 measured · Source: the US BTS 16:00 · 74 · 74 recorded · 74 measured · Source: the US BTS 17:00 · 90 · 90 recorded · 88 measured · Source: the US BTS 18:00 · 77 · 77 recorded · 77 measured · Source: the US BTS 19:00 · 173 · 173 recorded · 173 measured · Source: the US BTS 20:00 · 63 · 63 recorded · 63 measured · Source: the US BTS 21:00 · 3 · 3 recorded · 3 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.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

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—55
06:00No observations———
07:00Fewer than 200 measured departures—3232
08:00Fewer than 200 measured departures—3737
09:00Fewer than 200 measured departures—6363
10:00Fewer than 200 measured departures—9393
11:00Fewer than 200 measured departures—8890
12:00Fewer than 200 measured departures—7071
13:00Fewer than 200 measured departures—166167
14:00Fewer than 200 measured departures—8383
15:00Fewer than 200 measured departures—152152
16:00Fewer than 200 measured departures—7474
17:00Fewer than 200 measured departures—8890
18:00Fewer than 200 measured departures—7777
19:00Fewer than 200 measured departures—173173
20:00Fewer than 200 measured departures—6363
21:00Fewer than 200 measured departures—33
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 188 · 188 recorded · 188 measured · Source: the US BTS Tuesday · 188 · 188 recorded · 186 measured · Source: the US BTS Wednesday · 188 · 188 recorded · 187 measured · Source: the US BTS Thursday · 184 · 184 recorded · 184 measured · Source: the US BTS Friday · 189 · 189 recorded · 189 measured · Source: the US BTS Saturday · 134 · 134 recorded · 134 measured · Source: the US BTS Sunday · 202 · 202 recorded · 199 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—188188
TuesdayFewer than 200 measured departures—186188
WednesdayFewer than 200 measured departures—187188
ThursdayFewer than 200 measured departures—184184
FridayFewer than 200 measured departures—189189
SaturdayFewer than 200 measured departures—134134
SundayFewer than 200 measured departures—199202

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 110 · 110 recorded · 106 measured · Source: the US BTS Feb · 106 · 106 recorded · 106 measured · Source: the US BTS Mar · 124 · 124 recorded · 124 measured · Source: the US BTS Apr · 120 · 120 recorded · 119 measured · Source: the US BTS May · 124 · 124 recorded · 124 measured · Source: the US BTS Jun · 120 · 120 recorded · 120 measured · Source: the US BTS Jul · 124 · 124 recorded · 124 measured · Source: the US BTS Aug · 63 · 63 recorded · 63 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 102 · 102 recorded · 101 measured · Source: the US BTS Nov · 104 · 104 recorded · 104 measured · Source: the US BTS Dec · 116 · 116 recorded · 116 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—106110
FebFewer than 200 measured departures—106106
MarFewer than 200 measured departures—124124
AprFewer than 200 measured departures—119120
MayFewer than 200 measured departures—124124
JunFewer than 200 measured departures—120120
JulFewer than 200 measured departures—124124
AugFewer than 200 measured departures—6363
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—101102
NovFewer than 200 measured departures—104104
DecFewer than 200 measured departures—116116

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 76.3% 971
  • Delayed >15 min 23.3% 296
  • Cancelled 0.5% 6
  • 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

14
14 of 14
Flight numbersBy direction DeparturesOn time
WN3667 HOU → CMH 82 66.7%
WN2375 HOU → CMH 61 41.0%
WN969 CMH → HOU 60 81.7%
WN1322 HOU → CMH 58 82.8%
WN1809 CMH → HOU 58 93.1%
WN3750 CMH → HOU 58 74.1%
WN4310 HOU → CMH 58 81.0%
WN2150 HOU → CMH 50 88.0%
WN446 CMH → HOU 42 85.4%
WN1336 HOU → CMH 41 72.5%
WN1963 HOU → CMH 41 80.5%
WN3261 CMH → HOU 39 82.1%
WN1472 CMH → HOU 33 45.5%
WN4020 HOU → CMH 33 63.6%

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 62 +0.0% 0 71.0%
June 2026 60 +0.0% 0 68.3%
May 2026 62 +0.0% 0 79.0%
April 2026 60 +1.7% 0 71.7%
March 2026 62 +0.0% 0 58.1%
February 2026 54 +3.8% 0 72.2%
January 2026 52 −3.7% 2 76.9%
December 2025 58 +0.0% 0 84.5%
November 2025 52 +0.0% 0 84.6%
October 2025 62 +59.0% 0 80.6%
September 2025 60 0 86.7%
August 2025 63 0 82.5%
July 2025 62 0 64.5%
June 2025 60 0 66.7%
May 2025 62 0 83.9%
April 2025 59 1 84.7%
March 2025 62 0 80.6%
February 2025 52 0 82.7%
January 2025 54 2 72.2%
December 2024 58 0 60.3%
November 2024 52 0 90.4%
October 2024 39 1 92.3%

How to read this chart

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