The sector is held by United Airlines.
Airport pair · hand carry reference
SFO San Francisco to IAH Houston
San Francisco International, the United States, to George Bush Intercontinental, the United States. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 10.3 times a day
- Great circle
- 2,627 km
- Block, estimated
- 3h 51m
- Door to door
- 10h 36m
What SFO to IAH looks like
The SFO to IAH sector, the carriers on it and the flying time, before anything is promised to anybody.
San Francisco SFO to Houston IAH is a medium haul sector of 2,627 km by great circle, flown nonstop 10.3 times a day.
At the cruise speed this site models for 2,627 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 3h 51m.
San Francisco SFO is a major hub in the network held here, 189 scheduled destinations and 656.9 departures a day. Houston IAH has 197 destinations and 641 departures a day.
Houston is 2 hours ahead of San Francisco all year.
The pair sits inside the Americas, a corridor where the site already publishes 13 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on SFO to IAH from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| SFO to IAH | 10.29 | 72 | United Airlines |
| IAH to SFO | 9.86 | 69 | United Airlines |
One carrier holds the sector, United Airlines, so a cancellation has no second nonstop behind it and the connections below stop being theoretical.
At 10.3 times a day there is usually another departure within a few hours, which is what makes a same day booking on this pair realistic.
Between them the two directions put about 141 departures a week on SFO to IAH, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 3h 51m block time on SFO to IAH. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to SFO | 90 min | 1h 30m |
| At SFO before departure | 180 min | 4h 30m |
| SFO to IAH in the air, estimated | 231 min | 8h 21m |
| Formalities at IAH | 90 min | 9h 51m |
| Delivery run in Houston | 45 min | 10h 36m |
| Door to door | 636 min | 10h 36m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for SFO to IAH is 10h 36m.
A courier who leaves San Francisco at 09:00 local is on the ground in Houston at about 14:51 local and at the door by 17:06 the same day.
Working backwards from a six in the evening handover in Houston, the last useful departure from San Francisco is around 09:54 local.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 70 of them join SFO to IAH.
| Connecting at | SFO to hub, flights a day | Hub to IAH, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Albuquerque ABQ | 2 | 2.86 | 2,635 | 5h 22m |
| Phoenix PHX | 13.57 | 7.86 | 2,667 | 5h 39m |
| Salt Lake City SLC | 10 | 6.29 | 2,884 | 5h 56m |
| Las Vegas LAS | 21.86 | 9.71 | 2,628 | 5h 59m |
| San Diego SAN | 27.14 | 4.57 | 2,812 | 5h 59m |
| Dallas DFW | 16.57 | 19.57 | 2,714 | 6h 02m |
With 10.3 times a day on the nonstop, a connection here is a disruption plan rather than a routing, and it is listed because a closed runway or a cancellation wave is exactly when nobody has time to work it out.
70 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Albuquerque ABQ, where the weaker of the two legs still runs about twice a day.
Through ABQ the routing covers 2,635 km against the 2,627 km nonstop track and takes about 5h 22m in the air and on the ground at the hub, allowing 60 minutes to connect at an airport of that size.
That is only 1h 31m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Phoenix PHX at 5h 39m and Salt Lake City SLC at 5h 56m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves San Francisco, Oakland OAK is 18 km away by great circle and carries 89 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
If nothing suitable leaves Houston, Houston HOU is 38 km away by great circle and carries 145 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Industry within reach of the two ends
Public manufacturing and research sites whose logistics run through SFO or IAH. Listed as industrial geography, not as customers of anyone.
- Genentech, South San FranciscoBiotechnology research and manufacturing. The original biotech cluster, and still the densest. Logistics through San Francisco SFO.
Plan San Francisco to Houston yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
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Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for SFO to IAH in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
- The SFO airport entry
- The IAH airport entry
- Hand carry into the United States
- The written lane, Dubai to San Francisco
- The written lane, San Francisco to Taipei
- The written lane, Seoul to San Francisco
- The route calculator
More pairs through SFO and IAH: Atlanta to Houston, Chicago to Houston, Houston to Boston, Seattle to Houston, Frankfurt to Houston, Detroit to Houston, Amsterdam to Houston, Los Angeles to Houston.