San Diego (SAN) to Houston (IAH) flights
United Airlines flies nonstop from San Diego International Airport to George Bush Intercontinental Airport, with about 32 flights a week in July 2026. The 1,303-mile flight takes about 3h 12m gate to gate.
- Distance
- 1,303 mi · 2,097 km
- Flight time
- 3h 12m
- Airlines
- 1
- Seats filled
- 80%
Airlines flying SAN to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 32 | Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900 | 235,677 | 3h 12m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SAN to IAH flight schedule
6 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 8:00am and the last at 5:15pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 2760United Airlines | 8:00am | 1:21pm | 31 | 87% |
| UA 1980United Airlines | 10:13am | 3:34pm | 21 | 92% |
| UA 2165United Airlines | 10:13am | 3:40pm | 10 | 89% |
| UA 2237United Airlines | 12:01pm | 5:22pm | 31 | 78% |
| UA 618United Airlines | 3:04pm | 8:19pm | 31 | 65% |
| UA 2015United Airlines | 5:15pm | 10:36pm | 7 | 64% |
Is SAN to IAH on time?
From September 2025 to August 2026, 84% of 1,686 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 6am were the most punctual (95%), those around 3pm the least (74%). Most delay time was caused by late-arriving aircraft (54%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,686 | 84% | 12 min | 0.3% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 190 | 95% | |
| 8am to 9am | 230 | 91% | |
| 10am to 11am | 365 | 90% | |
| 11am to 12pm | 81 | 68% | |
| 12pm to 1pm | 283 | 82% | |
| 1pm to 2pm | 134 | 76% | |
| 3pm to 4pm | 204 | 74% | |
| 5pm to 6pm | 177 | 79% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 139 | 19,051 | |
| September 2025 | 136 | 18,969 | |
| October 2025 | 147 | 20,421 | |
| November 2025 | 142 | 20,239 | |
| December 2025 | 145 | 21,119 | |
| January 2026 | 128 | 17,263 | |
| February 2026 | 126 | 18,763 | |
| March 2026 | 149 | 21,973 | |
| April 2026 | 140 | 19,349 | |
| May 2026 | 149 | 18,253 | |
| June 2026 | 142 | 20,030 | |
| July 2026 | 143 | 20,247 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.