Houston George Bush Intercontinental (IAH)

IAH / KIAH · operated by Houston Airport System

Official · May 2026

3,959,385

George Bush Intercontinental Airport handled 3,959,385 passengers in May 2026, down 2.5% on a year earlier, according to US Bureau of Transportation Statistics — T-100 Air Carrier Statistics.

Full count · domestic + international Flight timing & delays ↓

Passengers over time

Showing 53 months. Full series runs 1990–2026 (437 periods).

Drag across the chart to zoom into a period.

January 2022 February 2023 March 2024 April 2025 May 2026

Domestic / International

May 2026

Domestic 76.1% 3,013,213
International 23.9% 946,172

Against 2019 +3.5% same month, before the pandemic

International share 24% of passengers in May 2026

Series depth 36 years from 1990

The most recent periods

Open any period for the full breakdown.

24 of 24

Period	Passengers	Year on year	Source
May 2026	3,959,385	−2.5%	US Bureau of Transportation Statistics	Open this month →
April 2026	3,713,546	+1.7%	US Bureau of Transportation Statistics	Open this month →
March 2026	3,960,471	+0.6%	US Bureau of Transportation Statistics	Open this month →
February 2026	3,381,878	+4.0%	US Bureau of Transportation Statistics	Open this month →
January 2026	3,627,566	+1.4%	US Bureau of Transportation Statistics	Open this month →
December 2025	4,194,306	−0.3%	US Bureau of Transportation Statistics	Open this month →
November 2025	3,766,441	−2.1%	US Bureau of Transportation Statistics	Open this month →
October 2025	3,982,969	−0.1%	US Bureau of Transportation Statistics	Open this month →
September 2025	3,572,678	−1.6%	US Bureau of Transportation Statistics	Open this month →
August 2025	3,994,855	−2.6%	US Bureau of Transportation Statistics	Open this month →
July 2025	4,433,508	+4.1%	US Bureau of Transportation Statistics	Open this month →
June 2025	4,279,691	−2.5%	US Bureau of Transportation Statistics	Open this month →
May 2025	4,060,730	−0.6%	US Bureau of Transportation Statistics	Open this month →
April 2025	3,651,824	−3.0%	US Bureau of Transportation Statistics	Open this month →
March 2025	3,937,254	+0.0%	US Bureau of Transportation Statistics	Open this month →
February 2025	3,251,322	−3.3%	US Bureau of Transportation Statistics	Open this month →
January 2025	3,576,760	+4.1%	US Bureau of Transportation Statistics	Open this month →
December 2024	4,205,489	+9.7%	US Bureau of Transportation Statistics	Open this month →
November 2024	3,847,944	+4.1%	US Bureau of Transportation Statistics	Open this month →
October 2024	3,985,257	+3.4%	US Bureau of Transportation Statistics	Open this month →
September 2024	3,630,241	+1.7%	US Bureau of Transportation Statistics	Open this month →
August 2024	4,102,087	+6.3%	US Bureau of Transportation Statistics
July 2024	4,257,541	+1.1%	US Bureau of Transportation Statistics
June 2024	4,389,590	+11.0%	US Bureau of Transportation Statistics

Also tracked here: aircraft movements (through May 2026), tonnes of cargo (through May 2026).

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.

US domestic sectors recorded by BTS

Source: BTS · US Department of Transportation · 2024-09-01 → 2026-06-30

Lowest average delay07:00–08:003.9min · 21,111 recorded · 20,910 measured

Gap to highest-delay hour20.0min07:00 ↔ 19:00

Recorded flights215,291George Bush Intercontinental Airport

Departure hour

On-time departures

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Average departure delay

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Recorded flights

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View the figures

Departure hour	On-time departures	Average departure delay	With departure time	Recorded flights
00:00	Fewer than 200 measured departures	—	7	7
01:00	No observations	—	—	—
02:00	No observations	—	—	—
03:00	No observations	—	—	—
04:00	No observations	—	—	—
05:00	91.8%	5.2 min	5,734	5,831
06:00	90.1%	6.4 min	8,139	8,289
07:00	90.8%	3.9 min	20,910	21,111
08:00	87.8%	8.3 min	6,140	6,216
09:00	84.5%	9.3 min	15,248	15,409
10:00	81.8%	11.4 min	9,210	9,293
11:00	80.9%	12.8 min	8,316	8,412
12:00	81.7%	12.2 min	22,281	22,485
13:00	74.5%	20.4 min	3,804	3,855
14:00	77.5%	16.1 min	18,024	18,200
15:00	74.7%	18.6 min	3,796	3,822
16:00	75.8%	18.1 min	17,076	17,336
17:00	70.7%	22.6 min	6,265	6,359
18:00	72.2%	20.9 min	26,826	27,213
19:00	68.2%	24.0 min	10,717	10,877
20:00	72.7%	18.6 min	20,960	21,221
21:00	75.9%	20.5 min	5,764	5,859
22:00	78.2%	18.6 min	3,148	3,191
23:00	83.7%	8.9 min	300	305

Day of week

On-time departures

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Average departure delay

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Recorded flights

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View the figures

Day of week	On-time departures	Average departure delay	With departure time	Recorded flights
Monday	77.4%	17.4 min	32,010	32,389
Tuesday	83.1%	10.4 min	28,719	29,171
Wednesday	81.6%	12.2 min	29,669	29,972
Thursday	78.9%	14.1 min	31,492	31,772
Friday	77.9%	15.6 min	31,627	31,975
Saturday	79.1%	14.6 min	27,647	27,967
Sunday	76.5%	17.8 min	31,501	32,045

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

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Average departure delay

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Recorded flights

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View the figures

Month of year	On-time departures	Average departure delay	With departure time	Recorded flights
Jan	82.0%	11.8 min	18,092	18,906
Feb	83.3%	9.9 min	17,314	17,446
Mar	78.6%	16.5 min	19,973	20,341
Apr	81.4%	12.0 min	19,429	19,532
May	74.7%	19.3 min	20,163	20,343
Jun	69.0%	26.8 min	19,606	19,912
Jul	69.5%	26.9 min	10,132	10,311
Aug	75.4%	17.6 min	9,803	9,889
Sep	85.2%	7.1 min	18,920	18,995
Oct	84.7%	8.2 min	20,392	20,475
Nov	82.6%	10.3 min	19,471	19,598
Dec	78.0%	15.9 min	19,370	19,543

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 78.2% 168,322
Delayed >15 min 20.6% 44,343
Cancelled 1.2% 2,626
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 punctuality and average delay.

Flights touching Brazil reported to ANAC · partial coverage

Source: ANAC Brazil VRA · 2024-09-01 → 2025-03-28

Lowest average delay20:00–21:0030.5min · 252 recorded · 250 measured

Recorded flights418George Bush Intercontinental Airport

Departure hour

On-time departures

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

Average departure delay

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

Recorded flights

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

View the figures

Departure hour	On-time departures	Average departure delay	With departure time	Recorded flights
00:00	No observations	—	—	—
01:00	No observations	—	—	—
02:00	No observations	—	—	—
03:00	No observations	—	—	—
04:00	No observations	—	—	—
05:00	Fewer than 200 measured departures	—	1	1
06:00	No observations	—	—	—
07:00	No observations	—	—	—
08:00	No observations	—	—	—
09:00	No observations	—	—	—
10:00	No observations	—	—	—
11:00	No observations	—	—	—
12:00	No observations	—	—	—
13:00	No observations	—	—	—
14:00	No observations	—	—	—
15:00	No observations	—	—	—
16:00	No observations	—	—	—
17:00	No observations	—	—	—
18:00	No observations	—	—	—
19:00	Fewer than 200 measured departures	—	108	108
20:00	55.6%	30.5 min	250	252
21:00	Fewer than 200 measured departures	—	56	57
22:00	No observations	—	—	—
23:00	No observations	—	—	—

Day of week

Recorded flights

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 week	On-time departures	Average departure delay	With departure time	Recorded flights
Monday	Fewer than 200 measured departures	—	60	61
Tuesday	Fewer than 200 measured departures	—	57	59
Wednesday	Fewer than 200 measured departures	—	60	60
Thursday	Fewer than 200 measured departures	—	59	59
Friday	Fewer than 200 measured departures	—	60	60
Saturday	Fewer than 200 measured departures	—	59	59
Sunday	Fewer than 200 measured departures	—	60	60

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

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 year	On-time departures	Average departure delay	With departure time	Recorded flights
Jan	Fewer than 200 measured departures	—	60	62
Feb	Fewer than 200 measured departures	—	56	56
Mar	Fewer than 200 measured departures	—	56	56
Apr	No observations	—	—	—
May	No observations	—	—	—
Jun	No observations	—	—	—
Jul	No observations	—	—	—
Aug	No observations	—	—	—
Sep	Fewer than 200 measured departures	—	61	62
Oct	Fewer than 200 measured departures	—	62	62
Nov	Fewer than 200 measured departures	—	58	58
Dec	Fewer than 200 measured departures	—	62	62

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 58.4% 244
Delayed >15 min 40.9% 171
Cancelled 0.7% 3
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 punctuality and average delay.

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