SAN to HOU flight delays & on-time performance
Nonstop flights from San Diego International Airport to William P. Hobby Airport · 1,313 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
71%
arrived < 15 min late
Cancelled
0.4%
4 flights
Avg arrival delay
14 min
45 min when late
Airlines
1
962 flights tracked
Key facts
- Flights from San Diego (SAN) to Houston (HOU) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (92% on time); around 4pm did worst (38%).
- Saturday was the most reliable day to fly (83% on time) and Friday the least (64%).
- The largest source of delay minutes was late-arriving aircraft (55%).
Which airline is most on time from SAN to HOU?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 71% | 0.4% | 14 min | 6.0% | 962 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%193 flights
- 7am85%125 flights
- 8am100%13 flights
- 9am81%16 flights
- 11am86%14 flights
- 12pm71%131 flights
- 1pm58%72 flights
- 2pm55%95 flights
- 4pm38%34 flights
- 5pm91%23 flights
- 6pm57%99 flights
- 7pm61%89 flights
- 8pm55%53 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%0.7% cancelled
- Tuesday78%0.7% cancelled
- Wednesday70%0.0% cancelled
- Thursday66%0.0% cancelled
- Friday64%0.7% cancelled
- Saturday83%0.0% cancelled
- Sunday68%0.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft55%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion12%
- Security1%
- Extreme weather0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather75%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
SAN to HOU: common questions
- How often are SAN to HOU flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Diego to Houston cancelled?
- 0.4% of scheduled flights were cancelled (4 of 962).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 45 min behind schedule on average, and 6.0% of flights were an hour or more late.
- How long is taxi time at SAN?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: HOU to SAN — 76% on time
More flights from San Diego
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SAN → HOU, nonstop flights by US airlines that report to the DOT. How we calculate this.