SAN to TUS flight delays & on-time performance
Nonstop flights from San Diego International Airport to Tucson International Airport · 367 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
76%
arrived < 15 min late
Cancelled
0.3%
2 flights
Avg arrival delay
16 min
65 min when late
Airlines
1
654 flights tracked
Key facts
- Flights from San Diego (SAN) to Tucson (TUS) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.3% were cancelled, and 9% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (90% on time); around 12pm did worst (40%).
- Saturday was the most reliable day to fly (88% on time) and Sunday the least (66%).
- The largest source of delay minutes was late-arriving aircraft (70%).
Which airline is most on time from SAN to TUS?
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 | 76% | 0.3% | 16 min | 8.9% | 654 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am89%194 flights
- 9am70%10 flights
- 10am90%61 flights
- 11am82%33 flights
- 12pm40%20 flights
- 4pm85%33 flights
- 5pm79%43 flights
- 6pm74%83 flights
- 7pm60%108 flights
- 8pm53%47 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday74%0.0% cancelled
- Wednesday82%1.1% cancelled
- Thursday77%1.0% cancelled
- Friday78%0.0% cancelled
- Saturday88%0.0% cancelled
- Sunday66%0.0% 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 aircraft70%
- Airline (crew, maintenance, cleaning, fueling)26%
- Air traffic control & airport congestion3%
- Security1%
- Extreme weather0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion50%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
SAN to TUS: common questions
- How often are SAN to TUS flights on time?
- 76% 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 Tucson cancelled?
- 0.3% of scheduled flights were cancelled (2 of 654).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 65 min behind schedule on average, and 8.9% of flights were an hour or more late.
- How long is taxi time at SAN?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TUS 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 → TUS, nonstop flights by US airlines that report to the DOT. How we calculate this.