San Diego International Airport
San Diego, United StatesSAN / KSAN
Major airport · 90 direct destinations · 1 runway · longest runway 9,400 ft
96 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
San Diego → Houston
SAN
San DiegoSan Diego International Airport
San DiegoSan Diego International AirportIAHHoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental Airport- Distance
- 1,301 mi
- Estimated flight time
- ~3h 5m
Houston is currently 2 hours ahead of San Diego.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 5 flights a day, observed from October 2025 to September 2026.
- 5
- flights per day
- 5
- busiest month · Oct
- 4
- quietest month · Dec
- 2 hr 40 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 4Jan2026
- 4Feb
- 5Mar
- 5Apr
- 5May
- 5Jun
- 5Jul
- 4Aug
- 4Sep
- 5Oct2025
- 5Nov
- 4Dec
Airlines
Who flies it
United Airlinesall year
Through the day
Departure times
Local time in San Diego. Most departures between 10:00 and 13:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 4.2Mon
- 4.4Tue
- 3.8Wed
- 4.3Thu
- 4.5Fri
- 4.2Sat
- 4Sun
Fleet
Aircraft observed
- Boeing 737-900B73945%
- Boeing 737-800B73827%
- Boeing 737 MAX 9B39M25%
- Boeing 737 MAX 8B38M4%
- GA6C0%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 4 | 110 |
|
| February 2026 | 4 | 113 |
|
| March 2026 | 5 | 141 |
|
| April 2026 | 5 | 132 |
|
| May 2026 | 5 | 134 |
|
| June 2026 | 5 | 132 |
|
| July 2026 | 5 | 133 |
|
| August 2026 | 4 | 119 |
|
| September 2026 | 4 | 114 |
|
| October 2025 | 5 | 142 |
|
| November 2025 | 5 | 132 |
|
| December 2025 | 4 | 112 |
|
Airlines observed on this route
From observed callsign routes on SAN-IAH - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from San Diego: 90.
- Direct destinations observed from Houston: 159.
The airports on this route
George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
73 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
SAN HOUWilliam P. Hobby AirportHouston is about 24 mi from Houston.View route →SNA IAHJohn Wayne Orange County International AirportSanta Ana is about 76 mi from San Diego.View route →PSP IAHPalm Springs International AirportPalm Springs is about 85 mi from San Diego.View route →LGB IAHLong Beach International AirportLong Beach is about 93 mi from San Diego.View route →
About the route from San Diego to Houston
The observed direct connection between San Diego International Airport (SAN) and George Bush Intercontinental Airport (IAH) covers approximately 1,301 mi. The estimated flight time is around 3h 5m. United Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is San Diego from Houston by air?
- The great-circle distance between San Diego International Airport and George Bush Intercontinental Airport is approximately 1,301 mi.
- How long is the flight from San Diego to Houston?
- Based on the distance, the estimated flight time is about 3h 5m. This is an estimate, not a schedule.
- Is there a direct connection from San Diego to Houston?
- Yes, a direct connection between SAN and IAH has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: United Airlines.
- How often is there a flight from San Diego to Houston?
- On average around 5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,514 observed flights. Mainly United Airlines. That is an observation, not a timetable.
- What is the current time difference between San Diego and Houston?
- Houston is currently 2 hours ahead of San Diego.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.