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637 km · Domestic

George Bush Intercontinental (IAH) – OKC Will Rogers World (OKC)

In July 2026, 182 flights operated between George Bush Intercontinental and OKC Will Rogers World (both directions), and 80.2% 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
January117208▲ 77.8%
February159252▲ 58.5%
March281247▼ 12.1%
April252235▼ 6.7%
May268230▼ 14.2%
June324180▼ 44.4%
July408182▼ 55.4%
August273––
September160––
October195–in progress
November164––
December216––
Year to date (Jan–Jul)1,8091,534▼ 15.2%

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
January76.1%86.1%▲ 13.1%
February77.4%84.5%▲ 9.2%
March84.3%82.6%▼ 2.0%
April80.6%87.7%▲ 8.8%
May76.5%83.0%▲ 8.5%
June72.2%77.8%▲ 7.8%
July78.2%80.2%▲ 2.6%
August81.7%––
September93.1%––
October92.3%–in progress
November86.6%––
December84.7%––
Year-to-date average (Jan–Jul)77.9%83.1%▲ 6.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January713▲ 85.7%
February40▼ 100.0%
March08–
April04–
May21▼ 50.0%
June100▼ 100.0%
July42▼ 50.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)2728▲ 3.7%

Airlines on this route

  1. SkyWest Airlines 85.7%
  2. United Airlines 14.3%

Oct 1, 2024 – Jul 31, 2026

By direction

IAH → OKC

Scheduled flights
2,395
Flights operated
2,364
Cancelled
31 · 1.3%
On-time departures
77.2%

OKC → IAH

Scheduled flights
2,390
Flights operated
2,362
Cancelled
28 · 1.2%
On-time departures
86.6%

IAH → OKC and OKC → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 4,100 85.7% 81.6% 50
United Airlines UA 685 14.3% 83.9% 9

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 delay09:00–10:003.4min · 350 recorded · 347 measured
Gap to highest-delay hour24.1min09:00 ↔ 18:00
Recorded flights4,785IAH–OKC

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 · 90.9% · 480 recorded · 470 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 07:00 · 88.7% · 804 recorded · 797 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 53 recorded · 53 measured · Source: the US BTS 09:00 · 89.3% · 350 recorded · 347 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 34 recorded · 34 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 192 recorded · 191 measured · Source: the US BTS 13:00 · 85.2% · 562 recorded · 561 measured · Source: the US BTS 14:00 · 79.8% · 300 recorded · 297 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 120 recorded · 118 measured · Source: the US BTS 16:00 · 84.9% · 237 recorded · 232 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 176 recorded · 173 measured · Source: the US BTS 18:00 · 69.9% · 512 recorded · 502 measured · Source: the US BTS 19:00 · 71.9% · 316 recorded · 313 measured · Source: the US BTS 20:00 · 71.2% · 235 recorded · 229 measured · Source: the US BTS 21:00 · 79.2% · 409 recorded · 404 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 · 7.3 min · 480 recorded · 470 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 07:00 · 4.4 min · 804 recorded · 797 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 53 recorded · 53 measured · Source: the US BTS 09:00 · 3.4 min · 350 recorded · 347 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 34 recorded · 34 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 192 recorded · 191 measured · Source: the US BTS 13:00 · 7.6 min · 562 recorded · 561 measured · Source: the US BTS 14:00 · 16.0 min · 300 recorded · 297 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 120 recorded · 118 measured · Source: the US BTS 16:00 · 8.0 min · 237 recorded · 232 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 176 recorded · 173 measured · Source: the US BTS 18:00 · 27.5 min · 512 recorded · 502 measured · Source: the US BTS 19:00 · 26.2 min · 316 recorded · 313 measured · Source: the US BTS 20:00 · 23.1 min · 235 recorded · 229 measured · Source: the US BTS 21:00 · 20.3 min · 409 recorded · 404 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 · 480 · 480 recorded · 470 measured · Source: the US BTS 06:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 07:00 · 804 · 804 recorded · 797 measured · Source: the US BTS 08:00 · 53 · 53 recorded · 53 measured · Source: the US BTS 09:00 · 350 · 350 recorded · 347 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 34 · 34 recorded · 34 measured · Source: the US BTS 12:00 · 192 · 192 recorded · 191 measured · Source: the US BTS 13:00 · 562 · 562 recorded · 561 measured · Source: the US BTS 14:00 · 300 · 300 recorded · 297 measured · Source: the US BTS 15:00 · 120 · 120 recorded · 118 measured · Source: the US BTS 16:00 · 237 · 237 recorded · 232 measured · Source: the US BTS 17:00 · 176 · 176 recorded · 173 measured · Source: the US BTS 18:00 · 512 · 512 recorded · 502 measured · Source: the US BTS 19:00 · 316 · 316 recorded · 313 measured · Source: the US BTS 20:00 · 235 · 235 recorded · 229 measured · Source: the US BTS 21:00 · 409 · 409 recorded · 404 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———
05:0090.9%7.3 min470480
06:00Fewer than 200 measured departures—55
07:0088.7%4.4 min797804
08:00Fewer than 200 measured departures—5353
09:0089.3%3.4 min347350
10:00No observations———
11:00Fewer than 200 measured departures—3434
12:00Fewer than 200 measured departures—191192
13:0085.2%7.6 min561562
14:0079.8%16.0 min297300
15:00Fewer than 200 measured departures—118120
16:0084.9%8.0 min232237
17:00Fewer than 200 measured departures—173176
18:0069.9%27.5 min502512
19:0071.9%26.2 min313316
20:0071.2%23.1 min229235
21:0079.2%20.3 min404409
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 · 79.8% · 707 recorded · 702 measured · Source: the US BTS Tuesday · 84.5% · 672 recorded · 666 measured · Source: the US BTS Wednesday · 82.9% · 674 recorded · 665 measured · Source: the US BTS Thursday · 84.1% · 700 recorded · 696 measured · Source: the US BTS Friday · 79.5% · 710 recorded · 699 measured · Source: the US BTS Saturday · 80.4% · 612 recorded · 601 measured · Source: the US BTS Sunday · 82.4% · 710 recorded · 697 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 · 16.7 min · 707 recorded · 702 measured · Source: the US BTS Tuesday · 10.3 min · 672 recorded · 666 measured · Source: the US BTS Wednesday · 11.5 min · 674 recorded · 665 measured · Source: the US BTS Thursday · 13.6 min · 700 recorded · 696 measured · Source: the US BTS Friday · 16.6 min · 710 recorded · 699 measured · Source: the US BTS Saturday · 13.1 min · 612 recorded · 601 measured · Source: the US BTS Sunday · 11.9 min · 710 recorded · 697 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 · 707 · 707 recorded · 702 measured · Source: the US BTS Tuesday · 672 · 672 recorded · 666 measured · Source: the US BTS Wednesday · 674 · 674 recorded · 665 measured · Source: the US BTS Thursday · 700 · 700 recorded · 696 measured · Source: the US BTS Friday · 710 · 710 recorded · 699 measured · Source: the US BTS Saturday · 612 · 612 recorded · 601 measured · Source: the US BTS Sunday · 710 · 710 recorded · 697 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday79.8%16.7 min702707
Tuesday84.5%10.3 min666672
Wednesday82.9%11.5 min665674
Thursday84.1%13.6 min696700
Friday79.5%16.6 min699710
Saturday80.4%13.1 min601612
Sunday82.4%11.9 min697710

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 · 82.5% · 345 recorded · 325 measured · Source: the US BTS Feb · 81.8% · 415 recorded · 411 measured · Source: the US BTS Mar · 83.5% · 536 recorded · 528 measured · Source: the US BTS Apr · 84.0% · 491 recorded · 487 measured · Source: the US BTS May · 79.5% · 501 recorded · 498 measured · Source: the US BTS Jun · 74.2% · 514 recorded · 504 measured · Source: the US BTS Jul · 78.8% · 596 recorded · 590 measured · Source: the US BTS Aug · 81.7% · 273 recorded · 273 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Oct · 88.7% · 283 recorded · 283 measured · Source: the US BTS Nov · 84.3% · 326 recorded · 325 measured · Source: the US BTS Dec · 83.6% · 345 recorded · 342 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 · 14.2 min · 345 recorded · 325 measured · Source: the US BTS Feb · 8.2 min · 415 recorded · 411 measured · Source: the US BTS Mar · 14.4 min · 536 recorded · 528 measured · Source: the US BTS Apr · 9.2 min · 491 recorded · 487 measured · Source: the US BTS May · 14.9 min · 501 recorded · 498 measured · Source: the US BTS Jun · 21.9 min · 514 recorded · 504 measured · Source: the US BTS Jul · 15.2 min · 596 recorded · 590 measured · Source: the US BTS Aug · 9.0 min · 273 recorded · 273 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Oct · 8.3 min · 283 recorded · 283 measured · Source: the US BTS Nov · 11.6 min · 326 recorded · 325 measured · Source: the US BTS Dec · 19.2 min · 345 recorded · 342 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 · 345 · 345 recorded · 325 measured · Source: the US BTS Feb · 415 · 415 recorded · 411 measured · Source: the US BTS Mar · 536 · 536 recorded · 528 measured · Source: the US BTS Apr · 491 · 491 recorded · 487 measured · Source: the US BTS May · 501 · 501 recorded · 498 measured · Source: the US BTS Jun · 514 · 514 recorded · 504 measured · Source: the US BTS Jul · 596 · 596 recorded · 590 measured · Source: the US BTS Aug · 273 · 273 recorded · 273 measured · Source: the US BTS Sep · 160 · 160 recorded · 160 measured · Source: the US BTS Oct · 283 · 283 recorded · 283 measured · Source: the US BTS Nov · 326 · 326 recorded · 325 measured · Source: the US BTS Dec · 345 · 345 recorded · 342 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.5%14.2 min325345
Feb81.8%8.2 min411415
Mar83.5%14.4 min528536
Apr84.0%9.2 min487491
May79.5%14.9 min498501
Jun74.2%21.9 min504514
Jul78.8%15.2 min590596
Aug81.7%9.0 min273273
SepFewer than 200 measured departures—160160
Oct88.7%8.3 min283283
Nov84.3%11.6 min325326
Dec83.6%19.2 min342345

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 80.9% 3,872
  • Delayed >15 min 17.8% 854
  • Cancelled 1.2% 59
  • 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

43
43 of 43
Flight numbersBy direction DeparturesOn time
OO5278 IAH → OKC 509 70.2%
OO5531 OKC → IAH 400 83.9%
OO5453 OKC → IAH 281 90.9%
OO5709 IAH → OKC 273 81.0%
OO5520 OKC → IAH 247 90.6%
OO4795 IAH → OKC 187 84.4%
OO5450 IAH → OKC 180 83.2%
OO5334 IAH → OKC 163 64.8%
OO5698 OKC → IAH 133 91.4%
OO5540 OKC → IAH 113 74.6%
OO5663 OKC → IAH 101 93.0%
OO5422 OKC → IAH 77 77.6%
OO5503 OKC → IAH 77 92.0%
UA1127 OKC → IAH 72 85.9%
UA2304 IAH → OKC 72 69.0%
OO5619 IAH → OKC 70 92.9%
OO5529 OKC → IAH 62 83.9%
OO5537 IAH → OKC 61 60.0%
OO5677 IAH → OKC 55 76.9%
UA2090 OKC → IAH 55 90.7%
OO5424 IAH → OKC 52 86.3%
UA1012 IAH → OKC 51 100.0%
UA765 OKC → IAH 51 94.1%
OO5567 OKC → IAH 50 73.5%
UA1117 OKC → IAH 47 78.7%
UA2259 IAH → OKC 47 87.2%
UA592 IAH → OKC 44 76.7%
OO4696 IAH → OKC 37 71.4%
UA714 IAH → OKC 37 82.9%
OO4684 OKC → IAH 36 86.1%
UA1448 OKC → IAH 36 94.1%
UA2622 OKC → IAH 34 76.5%
UA397 IAH → OKC 34 67.7%
OO5281 IAH → OKC 33 93.9%
OO5442 IAH → OKC 33 81.8%
OO5702 OKC → IAH 32 87.5%
OO5732 OKC → IAH 32 87.5%
OO5780 OKC → IAH 32 78.1%
OO5990 IAH → OKC 32 81.3%
OO6007 IAH → OKC 32 84.4%
OO6008 IAH → OKC 32 87.5%
OO5318 OKC → IAH 31 77.4%
UA1360 IAH → OKC 31 83.9%

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 182 −55.4% 2 80.2%
June 2026 180 −44.4% 0 77.8%
May 2026 230 −14.2% 1 83.0%
April 2026 235 −6.7% 4 87.7%
March 2026 247 −12.1% 8 82.6%
February 2026 252 +58.5% 0 84.5%
January 2026 208 +77.8% 13 86.1%
December 2025 216 +71.4% 0 84.7%
November 2025 164 +1.9% 0 86.6%
October 2025 195 +121.6% 0 92.3%
September 2025 160 0 93.1%
August 2025 273 0 81.7%
July 2025 408 4 78.2%
June 2025 324 10 72.2%
May 2025 268 2 76.5%
April 2025 252 0 80.6%
March 2025 281 0 84.3%
February 2025 159 4 77.4%
January 2025 117 7 76.1%
December 2024 126 3 81.7%
November 2024 161 1 82.0%
October 2024 88 0 80.7%

How to read this chart

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