ON TIMEBOARD
SFO San Francisco / MCI Kansas City

SFO → MCI on time

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

On time
68%
arrived < 15 min late
Cancelled
0.3%
365 flights
Typical arrival
0 min
median vs schedule
When late
+56 min
average delay
Flights / day
1
1 airline

68% of flights from San Francisco to Kansas City arrived on time over the past 12 months. That is worse than the typical U.S. route. The 11 a.m. departures ran on time 74% of the time; the 4 p.m. ones 49%. 10% 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 SFO → MCI: when a flight was late, it was under 45 minutes late 56% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 91 three hours or more; 0.3% 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 Airlines36568%0.3%0 min9.6%+56 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 SFO). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%8 a.m. departures: too few flights (21 flights)8a9 a.m. departures: too few flights (19 flights)9a10 a.m. departures: too few flights (24 flights)10a11 a.m. departures: 74% on time (106 flights)7411anoon departures: too few flights (33 flights)12p1 p.m. departures: too few flights (34 flights)1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: 49% on time (128 flights)494p
SFO → MCI, 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 (90%). Worst: December (74%).

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: 90% on time (124 flights)90OctNov: 82% on time (119 flights)82NovDec: 74% on time (105 flights)74Dec

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.

Late inbound plane 69%Airline (crew, maintenance, ops) 21%Air traffic & airport (NAS) 10%

Cancellations: 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 15154:29 p.m.12147%0.0%+16 minUnited Airlines

Questions

How often are flights from SFO to MCI on time?

68% of 365 scheduled flights from San Francisco, CA to Kansas City, MO arrived within 15 minutes of schedule between September 2025 and August 2026. 0.3% were cancelled.

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

Flights scheduled to leave at 11 a.m. were the most reliable (74% on time). The 4 p.m. departures were the least (49%).

What month has the most delays from SFO to MCI?

December (74% on time). The best month is October (90%), 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.