Historical on-time performance
Medford to San Francisco
329 miData through May 2026Source: US DOT · BTS
Flights on MFR–SFO arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 941 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time76%Medianon timep9040 minCancel0.3%Flights372
- SkyWest AirlinesOn-time69%Medianon timep9060 minCancel1.4%Flights569
Why flights run late
Delay causes
- Airline14%
- Weather13%
- Air traffic (NAS)44%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline11%
- Weather44%
- Air traffic (NAS)44%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 9 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MFR → SFO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 1,092 flights
- Evenings74% on time · p90 50 min · 646 flights
- Afternoons69% on time · p90 55 min · 1,040 flights
- Middays59% on time · p90 80 min · 129 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 80% on time.
- Saturdays80% on time · p90 35 min · 380 flights
- Tuesdays79% on time · p90 40 min · 407 flights
- Sundays77% on time · p90 60 min · 426 flights
- Wednesdays77% on time · p90 40 min · 427 flights
- Fridays76% on time · p90 45 min · 428 flights
- Thursdays74% on time · p90 50 min · 429 flights
- Mondays74% on time · p90 50 min · 431 flights
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