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Route Reliability

Kansas City → San Francisco

MCI–SFO · 1,499 miles · Kansas City International Airport to San Francisco International Airport

87
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
1 min
Average arrival delay
0.5%
Cancelled
365
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 83% of the time across 365 flights. No comparison to make.

What the data says

Morning flights do better here.

MCI–SFO flights departing between 6–9 AM arrived on time 91% of the time, versus 76% between 6–9 PM.

Mondays have been rough.

MCI–SFO flights arrived on time 92% of the time on Fridays and just 69% on Mondays. That gap is worth planning around.

Trending in the right direction.

MCI–SFO flights arrived on time 87% of the time over the last three months in the data, compared with 78% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon69%(52 flights)
  • Tue89%(52 flights)
  • Wed79%(52 flights)
  • Thu90%(51 flights)
  • Fri92%(52 flights)
  • Sat78%(51 flights)
  • Sun81%(52 flights)
On-time by departure window
  • 6–9 AM91%(105 flights)
  • 3–6 PM84%(115 flights)
  • 6–9 PM76%(142 flights)
On-time trend by month
71%
May

Jun 77% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202590%31
August 202584%31
September 202580%30
October 202584%31
November 202580%30
December 202577%30
January 202683%29
February 202675%28
March 202697%31
April 202693%30
May 202671%31

Same trip, other airports

Keep nerding

Based on 365 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.