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1,491 km · Domestic

George Bush Intercontinental (IAH) – Chicago O'Hare (ORD)

In July 2026, 1,076 flights operated between George Bush Intercontinental and Chicago O'Hare (both directions), and 75.4% 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
January874921▲ 5.4%
February776865▲ 11.5%
March915997▲ 9.0%
April8621,022▲ 18.6%
May1,0021,076▲ 7.4%
June1,0011,032▲ 3.1%
July1,0111,076▲ 6.4%
August1,044––
September1,061––
October1,031–in progress
November902––
December1,018––
Year to date (Jan–Jul)6,4416,989▲ 8.5%

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
January80.7%80.1%▼ 0.7%
February83.0%85.8%▲ 3.4%
March81.2%73.5%▼ 9.5%
April82.9%77.0%▼ 7.1%
May77.9%79.2%▲ 1.7%
June70.0%74.0%▲ 5.7%
July66.7%75.4%▲ 13.0%
August74.4%––
September84.7%––
October82.9%–in progress
November77.3%––
December77.4%––
Year-to-date average (Jan–Jul)77.5%77.9%▲ 0.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January4014▼ 65.0%
February43▼ 25.0%
March629▲ 383.3%
April529▲ 480.0%
May80▼ 100.0%
June1418▲ 28.6%
July1930▲ 57.9%
August22––
September2––
October4–in progress
November31––
December6––
Year to date (Jan–Jul)96123▲ 28.1%

Airlines on this route

  1. United Airlines 66.5%
  2. American Airlines 13.2%
  3. Spirit Airlines 6.6%
  4. Republic Airways 5.4%
  5. Envoy Air 4.4%
  6. Frontier Airlines 3.8%

Oct 1, 2024 – Jul 31, 2026

By direction

IAH → ORD

Scheduled flights
10,615
Flights operated
10,464
Cancelled
151 · 1.4%
On-time departures
79.9%

ORD → IAH

Scheduled flights
10,617
Flights operated
10,481
Cancelled
136 · 1.3%
On-time departures
77.2%

IAH → ORD and ORD → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 14,126 66.5% 82.3% 102
American Airlines AA 2,808 13.2% 68.2% 69
Spirit Airlines NK 1,391 6.6% 66.0% 40
Republic Airways YX 1,152 5.4% 77.6% 36
Envoy Air MQ 938 4.4% 79.7% 11
Frontier Airlines F9 803 3.8% 69.0% 29
PSA Airlines OH 8 0.0% 62.5% 0
SkyWest Airlines OO 6 0.0% 33.3% 0

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 delay05:00–06:00-0.9min · 994 recorded · 984 measured
Gap to highest-delay hour32.7min05:00 ↔ 18:00
Recorded flights21,232IAH–ORD

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · Fewer than 200 measured departures · 2 recorded · 2 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 · 94.5% · 994 recorded · 984 measured · Source: the US BTS 06:00 · 91.5% · 1,818 recorded · 1,781 measured · Source: the US BTS 07:00 · 90.8% · 1,663 recorded · 1,646 measured · Source: the US BTS 08:00 · 89.8% · 1,323 recorded · 1,310 measured · Source: the US BTS 09:00 · 84.0% · 1,444 recorded · 1,433 measured · Source: the US BTS 10:00 · 82.2% · 1,132 recorded · 1,125 measured · Source: the US BTS 11:00 · 78.0% · 737 recorded · 730 measured · Source: the US BTS 12:00 · 84.3% · 1,023 recorded · 1,015 measured · Source: the US BTS 13:00 · 73.0% · 1,029 recorded · 1,015 measured · Source: the US BTS 14:00 · 78.5% · 1,664 recorded · 1,655 measured · Source: the US BTS 15:00 · 71.9% · 640 recorded · 630 measured · Source: the US BTS 16:00 · 72.0% · 1,116 recorded · 1,097 measured · Source: the US BTS 17:00 · 75.0% · 1,240 recorded · 1,216 measured · Source: the US BTS 18:00 · 68.3% · 1,601 recorded · 1,577 measured · Source: the US BTS 19:00 · 57.7% · 534 recorded · 527 measured · Source: the US BTS 20:00 · 64.0% · 1,584 recorded · 1,555 measured · Source: the US BTS 21:00 · 65.9% · 1,451 recorded · 1,418 measured · Source: the US BTS 22:00 · 71.5% · 228 recorded · 221 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 9 recorded · 8 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
00:00 · Fewer than 200 measured departures · 2 recorded · 2 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 · -0.9 min · 994 recorded · 984 measured · Source: the US BTS 06:00 · 7.3 min · 1,818 recorded · 1,781 measured · Source: the US BTS 07:00 · 4.1 min · 1,663 recorded · 1,646 measured · Source: the US BTS 08:00 · 3.3 min · 1,323 recorded · 1,310 measured · Source: the US BTS 09:00 · 9.6 min · 1,444 recorded · 1,433 measured · Source: the US BTS 10:00 · 12.1 min · 1,132 recorded · 1,125 measured · Source: the US BTS 11:00 · 15.8 min · 737 recorded · 730 measured · Source: the US BTS 12:00 · 8.2 min · 1,023 recorded · 1,015 measured · Source: the US BTS 13:00 · 20.4 min · 1,029 recorded · 1,015 measured · Source: the US BTS 14:00 · 15.5 min · 1,664 recorded · 1,655 measured · Source: the US BTS 15:00 · 18.3 min · 640 recorded · 630 measured · Source: the US BTS 16:00 · 21.9 min · 1,116 recorded · 1,097 measured · Source: the US BTS 17:00 · 18.0 min · 1,240 recorded · 1,216 measured · Source: the US BTS 18:00 · 31.8 min · 1,601 recorded · 1,577 measured · Source: the US BTS 19:00 · 28.4 min · 534 recorded · 527 measured · Source: the US BTS 20:00 · 31.1 min · 1,584 recorded · 1,555 measured · Source: the US BTS 21:00 · 26.2 min · 1,451 recorded · 1,418 measured · Source: the US BTS 22:00 · 25.7 min · 228 recorded · 221 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 9 recorded · 8 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 · 2 · 2 recorded · 2 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 · 994 · 994 recorded · 984 measured · Source: the US BTS 06:00 · 1,818 · 1,818 recorded · 1,781 measured · Source: the US BTS 07:00 · 1,663 · 1,663 recorded · 1,646 measured · Source: the US BTS 08:00 · 1,323 · 1,323 recorded · 1,310 measured · Source: the US BTS 09:00 · 1,444 · 1,444 recorded · 1,433 measured · Source: the US BTS 10:00 · 1,132 · 1,132 recorded · 1,125 measured · Source: the US BTS 11:00 · 737 · 737 recorded · 730 measured · Source: the US BTS 12:00 · 1,023 · 1,023 recorded · 1,015 measured · Source: the US BTS 13:00 · 1,029 · 1,029 recorded · 1,015 measured · Source: the US BTS 14:00 · 1,664 · 1,664 recorded · 1,655 measured · Source: the US BTS 15:00 · 640 · 640 recorded · 630 measured · Source: the US BTS 16:00 · 1,116 · 1,116 recorded · 1,097 measured · Source: the US BTS 17:00 · 1,240 · 1,240 recorded · 1,216 measured · Source: the US BTS 18:00 · 1,601 · 1,601 recorded · 1,577 measured · Source: the US BTS 19:00 · 534 · 534 recorded · 527 measured · Source: the US BTS 20:00 · 1,584 · 1,584 recorded · 1,555 measured · Source: the US BTS 21:00 · 1,451 · 1,451 recorded · 1,418 measured · Source: the US BTS 22:00 · 228 · 228 recorded · 221 measured · Source: the US BTS 23:00 · 9 · 9 recorded · 8 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—22
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0094.5%-0.9 min984994
06:0091.5%7.3 min1,7811,818
07:0090.8%4.1 min1,6461,663
08:0089.8%3.3 min1,3101,323
09:0084.0%9.6 min1,4331,444
10:0082.2%12.1 min1,1251,132
11:0078.0%15.8 min730737
12:0084.3%8.2 min1,0151,023
13:0073.0%20.4 min1,0151,029
14:0078.5%15.5 min1,6551,664
15:0071.9%18.3 min630640
16:0072.0%21.9 min1,0971,116
17:0075.0%18.0 min1,2161,240
18:0068.3%31.8 min1,5771,601
19:0057.7%28.4 min527534
20:0064.0%31.1 min1,5551,584
21:0065.9%26.2 min1,4181,451
22:0071.5%25.7 min221228
23:00Fewer than 200 measured departures—89

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 76.5% · 3,123 recorded · 3,068 measured · Source: the US BTS Tuesday · 82.9% · 2,873 recorded · 2,823 measured · Source: the US BTS Wednesday · 81.3% · 2,843 recorded · 2,816 measured · Source: the US BTS Thursday · 79.4% · 3,153 recorded · 3,115 measured · Source: the US BTS Friday · 76.2% · 3,161 recorded · 3,132 measured · Source: the US BTS Saturday · 79.2% · 2,840 recorded · 2,803 measured · Source: the US BTS Sunday · 75.2% · 3,239 recorded · 3,188 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
Monday · 20.8 min · 3,123 recorded · 3,068 measured · Source: the US BTS Tuesday · 10.6 min · 2,873 recorded · 2,823 measured · Source: the US BTS Wednesday · 14.4 min · 2,843 recorded · 2,816 measured · Source: the US BTS Thursday · 15.5 min · 3,153 recorded · 3,115 measured · Source: the US BTS Friday · 16.5 min · 3,161 recorded · 3,132 measured · Source: the US BTS Saturday · 14.4 min · 2,840 recorded · 2,803 measured · Source: the US BTS Sunday · 17.7 min · 3,239 recorded · 3,188 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 3,123 · 3,123 recorded · 3,068 measured · Source: the US BTS Tuesday · 2,873 · 2,873 recorded · 2,823 measured · Source: the US BTS Wednesday · 2,843 · 2,843 recorded · 2,816 measured · Source: the US BTS Thursday · 3,153 · 3,153 recorded · 3,115 measured · Source: the US BTS Friday · 3,161 · 3,161 recorded · 3,132 measured · Source: the US BTS Saturday · 2,840 · 2,840 recorded · 2,803 measured · Source: the US BTS Sunday · 3,239 · 3,239 recorded · 3,188 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday76.5%20.8 min3,0683,123
Tuesday82.9%10.6 min2,8232,873
Wednesday81.3%14.4 min2,8162,843
Thursday79.4%15.5 min3,1153,153
Friday76.2%16.5 min3,1323,161
Saturday79.2%14.4 min2,8032,840
Sunday75.2%17.7 min3,1883,239

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 · 80.4% · 1,849 recorded · 1,795 measured · Source: the US BTS Feb · 84.5% · 1,648 recorded · 1,641 measured · Source: the US BTS Mar · 77.2% · 1,947 recorded · 1,912 measured · Source: the US BTS Apr · 79.7% · 1,918 recorded · 1,884 measured · Source: the US BTS May · 78.6% · 2,086 recorded · 2,078 measured · Source: the US BTS Jun · 72.1% · 2,065 recorded · 2,033 measured · Source: the US BTS Jul · 71.2% · 2,136 recorded · 2,087 measured · Source: the US BTS Aug · 74.4% · 1,066 recorded · 1,044 measured · Source: the US BTS Sep · 84.7% · 1,063 recorded · 1,061 measured · Source: the US BTS Oct · 84.7% · 1,635 recorded · 1,631 measured · Source: the US BTS Nov · 81.8% · 1,842 recorded · 1,811 measured · Source: the US BTS Dec · 77.3% · 1,977 recorded · 1,968 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 · 12.1 min · 1,849 recorded · 1,795 measured · Source: the US BTS Feb · 7.6 min · 1,648 recorded · 1,641 measured · Source: the US BTS Mar · 19.2 min · 1,947 recorded · 1,912 measured · Source: the US BTS Apr · 14.5 min · 1,918 recorded · 1,884 measured · Source: the US BTS May · 15.2 min · 2,086 recorded · 2,078 measured · Source: the US BTS Jun · 23.4 min · 2,065 recorded · 2,033 measured · Source: the US BTS Jul · 25.3 min · 2,136 recorded · 2,087 measured · Source: the US BTS Aug · 22.0 min · 1,066 recorded · 1,044 measured · Source: the US BTS Sep · 9.7 min · 1,063 recorded · 1,061 measured · Source: the US BTS Oct · 10.0 min · 1,635 recorded · 1,631 measured · Source: the US BTS Nov · 10.3 min · 1,842 recorded · 1,811 measured · Source: the US BTS Dec · 16.6 min · 1,977 recorded · 1,968 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 1,849 · 1,849 recorded · 1,795 measured · Source: the US BTS Feb · 1,648 · 1,648 recorded · 1,641 measured · Source: the US BTS Mar · 1,947 · 1,947 recorded · 1,912 measured · Source: the US BTS Apr · 1,918 · 1,918 recorded · 1,884 measured · Source: the US BTS May · 2,086 · 2,086 recorded · 2,078 measured · Source: the US BTS Jun · 2,065 · 2,065 recorded · 2,033 measured · Source: the US BTS Jul · 2,136 · 2,136 recorded · 2,087 measured · Source: the US BTS Aug · 1,066 · 1,066 recorded · 1,044 measured · Source: the US BTS Sep · 1,063 · 1,063 recorded · 1,061 measured · Source: the US BTS Oct · 1,635 · 1,635 recorded · 1,631 measured · Source: the US BTS Nov · 1,842 · 1,842 recorded · 1,811 measured · Source: the US BTS Dec · 1,977 · 1,977 recorded · 1,968 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan80.4%12.1 min1,7951,849
Feb84.5%7.6 min1,6411,648
Mar77.2%19.2 min1,9121,947
Apr79.7%14.5 min1,8841,918
May78.6%15.2 min2,0782,086
Jun72.1%23.4 min2,0332,065
Jul71.2%25.3 min2,0872,136
Aug74.4%22.0 min1,0441,066
Sep84.7%9.7 min1,0611,063
Oct84.7%10.0 min1,6311,635
Nov81.8%10.3 min1,8111,842
Dec77.3%16.6 min1,9681,977

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 77.5% 16,452
  • Delayed >15 min 21.2% 4,493
  • Cancelled 1.4% 287
  • 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

207
207 of 207
Flight numbersBy direction DeparturesOn time
UA787 IAH → ORD 656 74.2%
UA2124 IAH → ORD 574 88.6%
UA2182 IAH → ORD 509 92.7%
UA2616 IAH → ORD 487 96.1%
UA2665 ORD → IAH 428 65.9%
UA2417 IAH → ORD 415 83.1%
F993135 ORD → IAH 401 75.0%
AA3144 ORD → IAH 359 45.6%
UA2426 ORD → IAH 357 58.1%
UA2483 ORD → IAH 321 86.3%
UA2657 ORD → IAH 308 87.3%
UA1617 IAH → ORD 291 94.1%
UA2197 IAH → ORD 279 77.7%
UA1373 ORD → IAH 270 83.3%
AA3106 IAH → ORD 267 89.5%
F993136 IAH → ORD 262 64.8%
UA2135 IAH → ORD 261 74.2%
UA1231 ORD → IAH 239 94.1%
UA1752 IAH → ORD 239 67.7%
UA2296 IAH → ORD 228 74.8%
UA2638 ORD → IAH 228 84.7%
UA321 IAH → ORD 202 76.6%
UA714 ORD → IAH 170 80.0%
UA1168 IAH → ORD 169 83.9%
UA520 IAH → ORD 166 59.2%
UA1475 ORD → IAH 149 68.2%
UA1044 IAH → ORD 142 96.5%
F991882 IAH → ORD 139 60.0%
UA1124 ORD → IAH 138 71.7%
UA1314 ORD → IAH 126 77.8%
UA1448 ORD → IAH 125 87.1%
UA411 IAH → ORD 124 95.1%
AA1224 ORD → IAH 122 80.0%
UA343 IAH → ORD 118 96.6%
UA1293 IAH → ORD 116 85.2%
UA2095 ORD → IAH 109 76.9%
UA2155 ORD → IAH 109 67.6%
AA1224 IAH → ORD 104 83.7%
AA1168 IAH → ORD 101 58.6%
AA1168 ORD → IAH 96 61.7%
NK1156 IAH → ORD 94 62.9%
NK1157 ORD → IAH 94 44.4%
UA468 ORD → IAH 89 94.3%
UA1437 ORD → IAH 86 83.7%
UA2417 ORD → IAH 82 80.3%
UA1100 IAH → ORD 77 88.3%
AA3079 ORD → IAH 75 60.8%
UA2099 ORD → IAH 75 84.0%
UA1823 ORD → IAH 74 97.2%
UA1851 ORD → IAH 73 76.4%
AA1909 ORD → IAH 72 71.4%
AA1909 IAH → ORD 72 60.0%
AA1913 ORD → IAH 72 52.9%
AA1913 IAH → ORD 72 46.4%
AA1915 ORD → IAH 72 76.4%
AA1915 IAH → ORD 72 48.6%
UA1799 ORD → IAH 72 97.2%
UA1954 ORD → IAH 72 78.9%
UA2310 ORD → IAH 72 95.8%
UA2458 IAH → ORD 72 76.4%
UA2813 ORD → IAH 72 48.6%
UA2827 IAH → ORD 72 71.8%
UA535 ORD → IAH 72 87.5%
UA2225 ORD → IAH 71 85.9%
YX4591 ORD → IAH 71 87.1%
YX4591 IAH → ORD 71 73.9%
AA3322 ORD → IAH 70 74.3%
YX4720 IAH → ORD 69 66.7%
YX4720 ORD → IAH 69 73.9%
UA2621 ORD → IAH 68 77.9%
UA2653 IAH → ORD 68 97.1%
MQ3672 IAH → ORD 67 67.7%
MQ3672 ORD → IAH 67 75.4%
NK962 IAH → ORD 67 61.2%
NK963 ORD → IAH 67 85.1%
UA1850 ORD → IAH 67 97.0%
UA2231 ORD → IAH 64 92.1%
YX4724 IAH → ORD 64 73.4%
YX4724 ORD → IAH 64 81.3%
NK1145 IAH → ORD 63 74.6%
NK1150 ORD → IAH 63 71.4%
NK2174 IAH → ORD 62 48.3%
NK2274 ORD → IAH 62 50.0%
YX4426 ORD → IAH 62 81.7%
YX4426 IAH → ORD 62 75.4%
UA1895 ORD → IAH 61 98.4%
YX4431 ORD → IAH 61 70.0%
YX4431 IAH → ORD 60 76.3%
AA1494 ORD → IAH 58 50.0%
UA1568 ORD → IAH 58 87.5%
UA2234 IAH → ORD 57 93.0%
NK174 ORD → IAH 55 66.7%
NK569 ORD → IAH 55 60.0%
MQ4098 ORD → IAH 54 65.4%
NK572 IAH → ORD 54 78.9%
UA1332 IAH → ORD 54 92.5%
UA2202 ORD → IAH 54 52.9%
NK175 IAH → ORD 53 75.0%
UA2013 IAH → ORD 53 59.6%
AA2064 IAH → ORD 52 38.0%
UA2406 IAH → ORD 52 80.8%
MQ3517 IAH → ORD 51 79.2%
MQ3485 IAH → ORD 50 62.0%
MQ3485 ORD → IAH 50 78.0%
MQ3517 ORD → IAH 50 85.7%
UA1899 ORD → IAH 50 81.6%
UA469 IAH → ORD 50 94.0%
NK690 IAH → ORD 47 82.2%
NK691 ORD → IAH 47 84.4%
AA3325 IAH → ORD 46 68.2%
UA1677 IAH → ORD 45 91.1%
UA725 ORD → IAH 45 86.7%
AA3330 IAH → ORD 44 56.8%
UA1913 ORD → IAH 42 92.9%
YX4602 ORD → IAH 39 86.8%
UA1291 ORD → IAH 38 35.1%
MQ3452 IAH → ORD 37 94.6%
MQ3579 ORD → IAH 37 61.1%
UA1321 IAH → ORD 37 97.3%
UA1397 ORD → IAH 37 91.9%
UA1431 IAH → ORD 37 94.3%
UA1528 IAH → ORD 37 83.8%
UA1608 IAH → ORD 37 86.5%
UA1633 ORD → IAH 37 91.7%
UA1794 ORD → IAH 37 86.5%
UA1904 ORD → IAH 37 89.2%
UA1945 ORD → IAH 37 91.9%
UA2027 IAH → ORD 37 97.1%
UA2053 ORD → IAH 37 64.9%
UA2066 ORD → IAH 37 91.9%
UA2293 IAH → ORD 37 88.6%
UA2451 ORD → IAH 37 83.8%
UA2482 ORD → IAH 37 97.2%
UA2622 ORD → IAH 37 94.3%
UA2624 ORD → IAH 37 86.1%
UA2673 ORD → IAH 37 89.2%
UA2678 ORD → IAH 37 88.9%
UA2850 ORD → IAH 37 100.0%
UA2851 ORD → IAH 37 91.9%
UA303 ORD → IAH 37 69.4%
UA307 ORD → IAH 37 94.4%
UA462 ORD → IAH 37 78.4%
UA646 IAH → ORD 37 86.1%
UA699 IAH → ORD 37 70.3%
UA702 IAH → ORD 37 94.6%
YX4536 ORD → IAH 37 88.2%
YX4604 IAH → ORD 37 80.6%
UA1416 ORD → IAH 36 86.1%
UA1488 IAH → ORD 36 100.0%
UA1544 IAH → ORD 36 94.4%
UA2105 ORD → IAH 36 91.7%
UA2340 ORD → IAH 36 74.3%
UA2668 ORD → IAH 36 88.9%
UA534 ORD → IAH 36 91.7%
UA537 ORD → IAH 36 97.2%
UA658 ORD → IAH 36 75.0%
YX4537 IAH → ORD 36 94.1%
NK1180 ORD → IAH 35 53.3%
NK1181 IAH → ORD 35 91.2%
NK1213 ORD → IAH 35 43.8%
NK315 IAH → ORD 35 82.9%
NK316 ORD → IAH 35 54.3%
UA1144 ORD → IAH 35 60.0%
UA1862 ORD → IAH 35 88.6%
UA1971 ORD → IAH 35 82.9%
UA512 IAH → ORD 35 91.4%
UA532 IAH → ORD 35 50.0%
UA723 ORD → IAH 35 88.6%
MQ3445 IAH → ORD 34 76.5%
MQ3521 ORD → IAH 34 88.2%
NK1212 IAH → ORD 34 56.3%
UA609 ORD → IAH 34 82.4%
UA691 ORD → IAH 34 73.5%
UA715 IAH → ORD 34 79.4%
UA2432 ORD → IAH 33 69.7%
UA556 IAH → ORD 33 81.8%
AA2214 IAH → ORD 32 84.4%
NK1334 ORD → IAH 32 83.9%
NK1335 IAH → ORD 32 69.0%
UA1239 ORD → IAH 32 90.6%
UA1297 ORD → IAH 32 93.8%
UA1333 IAH → ORD 32 78.1%
UA1493 IAH → ORD 32 81.3%
UA1655 ORD → IAH 32 84.4%
UA1898 ORD → IAH 32 93.8%
UA1983 ORD → IAH 32 87.5%
UA2093 ORD → IAH 32 83.3%
UA2183 IAH → ORD 32 71.9%
UA678 ORD → IAH 32 93.8%
AA1296 IAH → ORD 31 88.9%
AA2337 ORD → IAH 31 80.7%
AA2365 ORD → IAH 31 90.3%
AA2365 IAH → ORD 31 77.4%
UA2091 ORD → IAH 31 80.7%
UA2320 IAH → ORD 31 71.0%
UA2662 ORD → IAH 31 96.8%
UA365 ORD → IAH 31 96.8%
UA573 ORD → IAH 31 83.9%
UA695 IAH → ORD 31 96.8%
AA1212 IAH → ORD 30 75.0%
AA3191 IAH → ORD 30 100.0%
AA3259 ORD → IAH 30 80.0%
MQ3566 IAH → ORD 30 83.3%
MQ3953 ORD → IAH 30 83.3%
MQ3953 IAH → ORD 30 90.0%
NK2575 IAH → ORD 30 63.3%
NK2576 ORD → IAH 30 43.3%

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 1,076 +6.4% 30 75.4%
June 2026 1,032 +3.1% 18 74.0%
May 2026 1,076 +7.4% 0 79.2%
April 2026 1,022 +18.6% 29 77.0%
March 2026 997 +9.0% 29 73.5%
February 2026 865 +11.5% 3 85.8%
January 2026 921 +5.4% 14 80.1%
December 2025 1,018 +7.2% 6 77.4%
November 2025 902 −0.8% 31 77.3%
October 2025 1,031 +71.8% 4 82.9%
September 2025 1,061 2 84.7%
August 2025 1,044 22 74.4%
July 2025 1,011 19 66.7%
June 2025 1,001 14 70.0%
May 2025 1,002 8 77.9%
April 2025 862 5 82.9%
March 2025 915 6 81.2%
February 2025 776 4 83.0%
January 2025 874 40 80.7%
December 2024 950 3 77.3%
November 2024 909 0 86.4%
October 2024 600 0 87.8%

How to read this chart

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