ON TIMEBOARD
MCI Kansas City / SFO San Francisco

MCI → SFO on time

Kansas City (Kansas City, MO) to San Francisco (San Francisco, CA). Every scheduled flight, September 2025 to August 2026.

On time
70%
arrived < 15 min late
Cancelled
1.1%
365 flights
Typical arrival
−5 min
median vs schedule
When late
+84 min
average delay
Flights / day
1
1 airline

70% of flights from Kansas City to San Francisco arrived on time over the past 12 months. That is worse than the typical U.S. route. The 7 a.m. departures ran on time 90% of the time; the 7 p.m. ones 32%. 17% 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 MCI → SFO: when a flight was late, it was under 45 minutes late 37% of the time. About 1 in 7 flights landed an hour or more late, and 1 in 41 three hours or more; 1.1% were cancelled outright.

Share of all 365 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines36570%1.1%−5 min15.1%+84 minUnited Airlines 57%, SkyWest 43%

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 MCI). Delays build through the day as late planes knock on, so early flights usually do best.

20%60%100%7 a.m. departures: 90% on time (106 flights)907a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights (40 flights)3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights (85 flights)5p6 p.m. departures: too few flights (31 flights)6p7 p.m. departures: 32% on time (103 flights)327p
MCI → 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

By month

Each calendar month pooled over 2023–2026. Best: October (92%). Worst: November (75%).

40%70%100%Jan: too few flights (98 flights)JanFeb: too few flights (85 flights)FebMar: too few flights (93 flights)MarApr: too few flights (90 flights)AprMay: too few flights (93 flights)MayJun: too few flights (90 flights)JunJul: too few flights (93 flights)JulAug: too few flights (93 flights)AugSep: too few flights (95 flights)SepOct: 92% on time (124 flights)92OctNov: 75% on time (119 flights)75NovDec: 79% on time (107 flights)79Dec

By day of week

DayFlightsOn timeCancelled
Monday53——
Tuesday52——
Wednesday52——
Thursday52——
Friday52——
Saturday52——
Sunday52——

Why flights were late

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

Air traffic & airport (NAS) 59%Late inbound plane 31%Airline (crew, maintenance, ops) 10%

Cancellations: airline 2 · weather 1 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from MCI to SFO on time?

70% of 365 scheduled flights from Kansas City, MO to San Francisco, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 1.1% were cancelled.

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

Flights scheduled to leave at 7 a.m. were the most reliable (90% on time). The 7 p.m. departures were the least (32%).

What month has the most delays from MCI to SFO?

November (75% on time). The best month is October (92%), over 2023–2026.

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.