Route on-time record
CLE to SFO: most on-time flights and the best time to fly
Cleveland (Cleveland Hopkins International Airport) to San Francisco (San Francisco International Airport). 589 nonstop flights in Jun 2025 to May 2026, 89% arrived within 15 minutes and 0.0% were cancelled. The most reliable flight number was United 2153 at 6:14 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CLE → SFO
Cleveland to San Francisco: 589 nonstop flights a year
On time (12 months)
89%
Cancelled
0.0%
avg delay 9 min
Best time to leave
Before 9 AM
93% on time vs 81% 3 to 6 PM
Most reliable airline
United
89% chance on time
Lowest nonstop fare seen in the next two months: $413 (United 2676 on 2026-10-29). 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 · United 2153
6:14 AM → 8:40 AM5h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (269 flights, Jun 2025 to May 2026).
- Never cancelled in 269 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 81%).
- Lands inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
Strong track record · 269 flights
Find United 2153 fares Opens this date on Aviasales#2 · United 234
5:40 PM → 7:55 PM5h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 60%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 60% of the time (10 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 81% on time; Before 9 AM: 93%).
Limited track record · 10 flights
Find United 234 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines89%
589 flights · 89% on time as flown · 0.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
395 flights · avg delay 5 min
- 3 to 6 PM81%
173 flights · avg delay 18 min
Best day: Tuesday (89%). Worst: Sunday (85%).
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 volume63%
- Airline (crew, maintenance, boarding)19%
- Late-arriving aircraft16%
- Severe weather3%
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
CLE to SFO questions
- What time of day is best to fly CLE to SFO?
- Before 9 AM: 93% of flights arrived on time, against 81% for departures 3 to 6 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 CLE to SFO?
- United, with a season-adjusted 89% chance of operating and arriving on time over 589 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 CLE to SFO?
- July (79% on time); the best was October (96%), 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 CLE
- SFO to CLE (return)
- CLE to ORD 74%
- CLE to ATL 85%
- CLE to EWR 80%
- CLE to MCO 78%
- CLE to LGA 76%
- CLE to DEN 81%
- CLE to CLT 81%
- CLE to BOS 78%
- CLE to DFW 75%
- CLE to DCA 65%
- CLE to FLL 80%
- CLE to MDW 82%
Most on-time flights from CLE on every route →
Live status: FAA delays and ground stops