Tucson (TUS) to San Diego (SAN): On-Time Performance
Data through July 2026
The calendar drives reliability on TUS–SAN. January 2025 flights landed on schedule 95% of the time, but October 2024 dropped to 61% — a gap of 34 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 58%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 1.8
- last 12 months
- Duration
- 1h 22m
- scheduled
- Distance
- 367 mi
Monthly on-time trend
Best time to fly from TUS to SAN
Aim for departures around 6 a.m. (95% on-time); avoid 7 p.m. departures (49%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 17 min |
| Tuesday | 85% | 9 min |
| Wednesday | 88% | 8 min |
| Thursday | 75% | 17 min |
| Friday | 69% | 19 min |
| Saturdaybest | 89% | 7 min |
| Sunday | 76% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft55%
- Airline operations14%
- National airspace system31%
- Weather1%
Frequently asked questions
- How often are flights from TUS to SAN delayed?
- 21% of TUS–SAN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- What is the best time of day to fly from TUS to SAN?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 7 p.m. have the worst (49%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from TUS to SAN?
- The scheduled TUS–SAN flight time averages 1h 22m over 367 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are TUS to SAN flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from TUS to SAN?
- October 2024 was the roughest month in this dataset, with only 61% of arrivals on time. The best was January 2025 at 95%. If your dates are flexible, that 34-point gap is worth planning around.
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Based on 1,325 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.