OnTimeRoutes
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United Airlines MFR to SFO on-time performance

United Airlines nonstop flights from Medford to San Francisco · Aug 2025 – Jul 2026

On-time arrivals
68%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
17 min
51 min when late
Rank on route
#1 of 2
route average 67% on time

Key facts

  • United Airlines flights on MFR to SFO arrived on time 68% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 8% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 67% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (61%).

On-time trend by month

20%60%100%July 2025: 88.7% on time, 0.0% cancelledJul ’25August 2025: 91.9% on time, 0.0% cancelledAug ’25September 2025: 85.0% on time, 0.0% cancelledSep ’25October 2025: 71.4% on time, 0.0% cancelledOct ’25November 2025: 93.1% on time, 0.0% cancelledNov ’25December 2025: 100.0% on time, 0.0% cancelledDec ’25March 2026: 66.7% on time, 0.0% cancelledMar ’26April 2026: 36.7% on time, 0.0% cancelledApr ’26May 2026: 47.6% on time, 0.0% cancelledMay ’26June 2026: 56.7% on time, 0.0% cancelledJun ’26July 2026: 53.2% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion61%
  • Late-arriving aircraft24%
  • Airline (crew, maintenance, cleaning, fueling)14%
  • Extreme weather1%
  • Security0%

Other airlines on MFR to SFO

406 United Airlines flights tracked on this route; 0 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.