Route on-time record
SFO to TUS: most on-time flights and the best time to fly
San Francisco (San Francisco International Airport) to Tucson (Tucson International Airport). 992 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 0.3% were cancelled. The most reliable flight number was SkyWest 5433 at 8:22 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SFO → TUS
San Francisco to Tucson: 992 nonstop flights a year
On time (12 months)
81%
Cancelled
0.3%
avg delay 12 min
Best time to leave
Before 9 AM
84% on time vs 70% noon to 3 PM
Most reliable airline
SkyWest
81% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 5433 · sold as United Express, Delta Connection, American Eagle or Alaska
8:22 AM → 10:45 AM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-20.
82%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (135 flights, Jun 2025 to May 2026).
- Never cancelled in 135 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 84% on time; Noon to 3 PM: 70%).
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 135 flights
Find 8:22 AM flight fares Opens this date on Aviasales#2 · SkyWest 5688 · sold as United Express, Delta Connection, American Eagle or Alaska
8:45 PM → 11:17 PM2h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.3%
- Avg arrival delay
- 12 min
- Arrived on time 82% of the time (320 flights, Jun 2025 to May 2026).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Strong track record · 320 flights
Find 8:45 PM flight fares Opens this date on Aviasales#3 · SkyWest 5962 · sold as United Express, Delta Connection, American Eagle or Alaska
4:25 PM → 6:54 PM2h 29m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 76%
- Cancelled
- 1.2%
- Avg arrival delay
- 17 min
- Arrived on time 76% of the time (169 flights, Jun 2025 to May 2026).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Moderate track record · 169 flights
Find 4:25 PM flight fares Opens this date on Aviasales#4 · SkyWest 6023 · sold as United Express, Delta Connection, American Eagle or Alaska
12:23 PM → 2:47 PM2h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 55%
- Cancelled
- 0.0%
- Avg arrival delay
- 34 min
- Arrived on time 55% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 70% on time; Before 9 AM: 84%).
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 12:23 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)81%
929 flights · 82% on time as flown · 0.3% cancel
- United Airlines77%
63 flights · 75% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM84%
323 flights · avg delay 10 min
- Noon to 3 PM70%
79 flights · avg delay 19 min
- 3 to 6 PM79%
236 flights · avg delay 14 min
- 6 to 9 PM82%
353 flights · avg delay 12 min
Best day: Saturday (86%). Worst: Thursday (80%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume36%
- Airline (crew, maintenance, boarding)31%
- Late-arriving aircraft31%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
SFO to TUS questions
- What time of day is best to fly SFO to TUS?
- Before 9 AM: 84% of flights arrived on time, against 70% for departures noon to 3 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from SFO to TUS?
- SkyWest, with a season-adjusted 81% chance of operating and arriving on time over 929 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on SFO to TUS?
- February (76% on time); the best was June (88%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from SFO
- TUS to SFO (return)
- SFO to LAX 76%
- SFO to SEA 74%
- SFO to JFK 80%
- SFO to SAN 68%
- SFO to LAS 76%
- SFO to ORD 77%
- SFO to DEN 76%
- SFO to SNA 81%
- SFO to PHX 76%
- SFO to BOS 78%
- SFO to EWR 76%
- SFO to DFW 75%
Live status: FAA delays and ground stops