TUS to SAN flight delays & on-time performance
Nonstop flights from Tucson International Airport to San Diego 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
0.5%
3 flights
Avg arrival delay
15 min
60 min when late
Airlines
1
654 flights tracked
Key facts
- Flights from Tucson (TUS) to San Diego (SAN) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.5% 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 5am did best (96% on time); around 7pm did worst (43%).
- Saturday was the most reliable day to fly (90% on time) and Friday the least (62%).
- The largest source of delay minutes was late-arriving aircraft (53%).
Which airline is most on time from TUS to SAN?
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% | 0.5% | 15 min | 8.9% | 654 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am96%47 flights
- 6am95%129 flights
- 7am94%80 flights
- 8am100%19 flights
- 9am92%59 flights
- 4pm61%41 flights
- 5pm81%21 flights
- 6pm59%145 flights
- 7pm43%82 flights
- 8pm29%14 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday84%0.0% cancelled
- Wednesday87%0.0% cancelled
- Thursday78%2.0% cancelled
- Friday62%0.0% cancelled
- Saturday90%0.0% cancelled
- Sunday65%1.0% 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 aircraft53%
- Air traffic control & airport congestion31%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
TUS to SAN: common questions
- How often are TUS to SAN 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 Tucson to San Diego cancelled?
- 0.5% of scheduled flights were cancelled (3 of 654).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 60 min behind schedule on average, and 8.9% of flights were an hour or more late.
- How long is taxi time at TUS?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAN to TUS — 76% on time
More flights from Tucson
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: TUS → SAN, nonstop flights by US airlines that report to the DOT. How we calculate this.