SFO to TUS flight delays & on-time performance
Nonstop flights from San Francisco International Airport to Tucson International Airport · 751 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFO or TUS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Francisco (SFO) to Tucson (TUS) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.3% were cancelled, and 8% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (78% on time); United Airlines was the least (75%).
- Departures scheduled around 6pm did best (84% on time); around 8pm did worst (67%).
- Saturday was the most reliable day to fly (84% on time) and Friday the least (74%).
- The largest source of delay minutes was air traffic control & airport congestion (42%).
Which airline is most on time from SFO 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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 78% | 0.3% | 15 min | 7.7% | 882 |
| United Airlines | 75% | 0.0% | 14 min | 6.3% | 63 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am83%262 flights
- 12pm72%103 flights
- 1pm76%37 flights
- 4pm77%164 flights
- 5pm81%21 flights
- 6pm84%196 flights
- 8pm67%153 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday81%0.8% cancelled
- Wednesday76%0.0% cancelled
- Thursday79%0.0% cancelled
- Friday74%0.0% cancelled
- Saturday84%0.8% cancelled
- Sunday79%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.
- Air traffic control & airport congestion42%
- Late-arriving aircraft30%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SFO to TUS: common questions
- How often are SFO to TUS flights on time?
- 78% 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 Francisco to Tucson cancelled?
- 0.3% of scheduled flights were cancelled (3 of 945).
- 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 64 min behind schedule on average, and 7.7% of flights were an hour or more late.
- How long is taxi time at SFO?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TUS to SFO — 69% on time
More flights from San Francisco
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SFO → TUS, nonstop flights by US airlines that report to the DOT. How we calculate this.