ON TIMEBOARD

CLE → SFO on time

Cleveland Hopkins (Cleveland, OH) to San Francisco (San Francisco, CA). Every scheduled flight, September 2025 to August 2026.

On time
87%
arrived < 15 min late
Cancelled
0.0%
573 flights
Typical arrival
−9 min
median vs schedule
When late
+68 min
average delay
Flights / day
2
1 airline

87% of flights from Cleveland to San Francisco arrived on time over the past 12 months. That is better than the typical U.S. route. The 7 a.m. departures ran on time 94% of the time; the 5 p.m. ones 71%. 4% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for CLE → SFO: when a flight was late, it was under 45 minutes late 46% of the time. About 1 in 24 flights landed an hour or more late, and 1 in 72 three hours or more; 0.0% were cancelled outright.

Share of all 573 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines57387%0.0%−9 min4.2%+68 minUnited Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at CLE). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: 92% on time (153 flights)926a7 a.m. departures: 94% on time (211 flights)947a8 a.m. departures: too few flights (31 flights)8a9 a.m. departures: too few flights (1 flights)9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights (5 flights)1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights (6 flights)4p5 p.m. departures: 71% on time (141 flights)715p6 p.m. departures: too few flights6p7 p.m. departures: too few flights (25 flights)7p
CLE → SFO, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On CLE → SFO, each airline's last flight of the day was cancelled 0.0% of the time, against 0.0% for its earlier flights, about the same. It arrived 3+ hours late 3.7% of the time (earlier flights: 0.5%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
United Airlines5:40 p.m.0.0%3.7%0.0%first flight 7:00 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

By month

Each calendar month pooled over 2023–2026. Best: October (96%). Worst: December (80%).

40%70%100%Jan: too few flights (98 flights)JanFeb: too few flights (85 flights)FebMar: 83% on time (112 flights)83MarApr: 90% on time (115 flights)90AprMay: 92% on time (132 flights)92MayJun: 83% on time (148 flights)83JunJul: 84% on time (172 flights)84JulAug: 91% on time (161 flights)91AugSep: 94% on time (164 flights)94SepOct: 96% on time (185 flights)96OctNov: 89% on time (157 flights)89NovDec: 80% on time (128 flights)80Dec

By day of week

DayFlightsOn timeCancelled
Monday91——
Tuesday68——
Wednesday72——
Thursday87——
Friday90——
Saturday77——
Sunday88——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Air traffic & airport (NAS) 82%Airline (crew, maintenance, ops) 12%Late inbound plane 5%Severe weather 1%

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
UA 21537:00 a.m.34894%0.0%−10 minUnited Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Oct 12, 2025367%0
Oct 16, 2025367%0
Sep 25, 2025367%0
Oct 13, 2025367%0
Oct 20, 20253100%0

Questions

How often are flights from CLE to SFO on time?

87% of 573 scheduled flights from Cleveland, OH to San Francisco, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.0% were cancelled.

What is the best time of day to fly CLE to SFO?

Flights scheduled to leave at 7 a.m. were the most reliable (94% on time). The 5 p.m. departures were the least (71%).

What month has the most delays from CLE to SFO?

December (80% on time). The best month is October (96%), over 2023–2026.

Is the last flight of the day from CLE to SFO more likely to be cancelled?

Not much. Each airline's last CLE–SFO flight of the day was cancelled 0.0% of the time over the past year, against 0.0% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.