IAH Houston

How deep the IAH board really is

The table above says where a courier can fly from IAH. This reads the same 197 destinations back for the questions a dispatcher asks second: how much of the board rests on one airline, how much of it runs less than daily, whether the return leg is as thick as the outbound, what the clock here does to a Gulf working day and which of the destinations shut at night, all of it computed on 2026-09-07 from AeroDataBox scheduled route statistics.

• 110of the 197 destinations are flown by one airline
• 47destinations run less than once a day
• 59destinations have four or more departures a day
• 80.2%of the destinations name United Airlines, the largest presence here

Who holds the departures at IAH

67 airlines appear on the IAH board and they do not hold it evenly. United Airlines is on 158 of the 197 destinations, 80.2 per cent of them, and on 75 of those it is the only airline flying the sector. The destinations it appears on carry 617.6 of the 641 departures a day this airport files, though other airlines fly some of the same sectors, so read that as reach rather than as a share of the aircraft.

The next largest presence is Mesa Airlines on 22 destinations. 44 of the 67 airlines at IAH appear on a single destination each, which is the long tail every airport carries, and none of it is a rebooking option when the sector you need is the one that fell over.

An airport held this tightly is quick to book and slow to recover: with 158 of the 197 destinations on one airline, the second aircraft on an IAH sector is usually another United Airlines aircraft, and when there is not one the desk is looking at another airport rather than another airline. That is why the alternate airports listed above matter more at IAH than the destination count does.

How much of the IAH board is daily

Of the 197 destinations, 150 are flown at least once a day and 47 are not, 30 of them running once a week or less. The median destination on the IAH board is flown about twice a day.

An average of 0.14 flights a day is the schedule statistic, and it is worth translating it before anything is promised to anybody: IAH to Wapakoneta (AXV) is about one a week, so a missed departure there is not a delay of hours, it is the next slot.

The five busiest destinations carry 80.7 of the 641 departures a day, 12.6 per cent of the whole board. The other 192 destinations are spread widely enough that a courier who misses the first departure at IAH usually has somewhere else to look on the same board.

Destination	Country	The only airline on it	Flights a week	km	Routing
Acapulco ACA	Mexico	United Airlines	1	1,538	plan this
Atlantic City ACY	the United States	Kabo Air	1	2,163	plan this
Baku GYD	Azerbaijan	Silk Way West	1	11,408	the pair page
Charlotte Amalie, Harry S. Truman Airport STT	US Virgin Islands	United Airlines	1	3,328	plan this
Charlottesville CHO	the United States	EUS	1	1,796	plan this
Dallas DAL	the United States	NetJets Aviation	1	349	plan this
Denver BJC	the United States	Executive Jet Management	1	1,416	plan this
Durango DRO	the United States	Mesa Airlines	1	1,397	plan this
Eagle EGE	the United States	NetJets Aviation	1	1,504	plan this
Emporia EMP	the United States	WUP	1	932	plan this

The ten destinations out of IAH where one airline holds the sector and files fewer than seven departures a week, with the weekly figure taken as the average daily rate multiplied by seven rather than as a fixed timetable. 32 further destinations sit in the same position and are listed in the board above.

The way back from IAH

The desk holds the return direction for 97 of the 197 destinations, and a courier plans the way back on those figures rather than on the outbound. On four of them the return into IAH runs thinner than the outbound by more than a quarter. The widest gaps are Istanbul (IST) at 1.9 out a day against 1 back, Edmonton (YEG) at 0.86 out a day against 0.57 back and Rio de Janeiro (GIG) at 1.7 out a day against 1.1 back.

It runs the other way as well: Washington (DCA) files 10.3 a day back into IAH against 2.6 outbound, which is the shape that strands a courier at this end rather than at the far end.

The clock at IAH

IAH keeps America/Chicago time, nine hours behind Dubai in summer and ten hours behind in winter, because the clock here moves and the Gulf clock does not.

When it is 09:00 on a Dubai working morning it is 00:00 at IAH, and a nine to six day at each end does not overlap at all, so an instruction written in Dubai is read here on the following working day unless somebody is woken up.

The night at IAH

6 of the destinations from here carry a documented night restriction of their own, which is a departure time question at this end rather than an arrival problem at the other.

Into London (LHR) the door shuts at 23:30 local, so the last departure from IAH that lands inside it leaves around 07:39, on a modelled block of 9h 51m. Into Amsterdam (AMS) the door shuts at 23:00 local, so the last departure from IAH that lands inside it leaves around 05:48, on a modelled block of 10h 12m. Into Frankfurt-am-Main (FRA) the door shuts at 23:00 local, so the last departure from IAH that lands inside it leaves around 05:23, on a modelled block of 10h 37m. Those three departure times out of IAH are worked backwards from the published window with the block time model this site uses everywhere, 720 to 880 km an hour by sector length with thirty minutes on the ground, so they are arithmetic rather than a timetable and the desk checks the published departure before it promises the landing.

Where IAH turns up on the rest of this site

IAH carries two other pages on this site as well: the United States country desk, which sets out the customs practice, the working week and the road legs behind this airport and the IAH transit page for the connecting case, where a courier changes aircraft here rather than starting or finishing.

The site publishes 52 airport pair pages that start or end at IAH, each with the distance, the block time, the carriers on the sector and a door to door clock. The busiest are Houston to Chicago (ORD), Houston to Dallas-Fort Worth (DFW) and Houston to Denver (DEN).

Ten of the 346 published hand carry lanes run through this airport: Doha to Houston, Dubai to Houston and Houston to Aberdeen. A lane page is the commercial version of the board above, with the customs, the ground legs and the price at IAH written out.

Eleven courier postings name IAH as the airport a courier here flies from: Cypress, Beaumont and College Station.

To price a movement rather than read the board, the route calculator opens with IAH already set as the origin, and it works out the flying time, the distance and the delivery hour for any of the 197 destinations above.