United AirlinesUA83% on time
live
Direct flights from Columbus (CMH) to San Francisco (SFO): 7 nonstop departures observed each week across 1 airline. 83% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 4 minutes late. No cancellations were recorded across the 6 tracked flights. The nonstop covers 3,403 km, an estimated 4 hours 52 minutes in the air. Measured by Pro Flight Search from live flight boards at Columbus and San Francisco. Updated 17 October 2026 at 08:07 UTC.
Today, CMH → SFO
Sat 17 Oct · local times- 07:21 UA1597United On scheduleGate B29 SFO 09:30scheduled
Checked CMH board 03:44 · SFO board 00:40
CMH
Columbus
disrupted · +169
SFO
San Francisco
heavy · +34
3,403 km · ~4h 52m est.
Runs reliable · 1 airline · 7x weekly · nonstop
83% on time
of the last 6 operated CMH → SFO flights arrived within 15 minutes
Median arrival delay is +4 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+4 minacross the last 6 operated legs
Flight time~4h 52mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SFO: 50% odds of a 15+ minute delay and around +17 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Columbus to San Francisco route actually runs
Pro Flight Search records official board updates for nonstop CMH to SFO flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Columbus (CMH) to San Francisco (SFO) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/CMH-SFO
CMH to SFO questions
Is CMH–SFO running on time right now?
High disruption likely. The departure side at CMH is the weaker end, route health score 27/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from CMH to SFO?
Great-circle distance is 3,403 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 270–322 min gate-to-gate on this route.
How often does CMH–SFO fly?
United Airlines runs the route with about 11 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at CMH and arrival-side delay at SFO, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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