San Francisco (SFO) to Medford (MFR): On-Time Performance
Data through May 2026
When you fly SFO to MFR matters as much as anything else about the booking: the route swung from 96% on-time in September 2025 to just 66% in May 2026. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 2.8
- last 12 months
- Duration
- 1h 28m
- scheduled
- Distance
- 329 mi
Best airline from SFO to MFR
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 84% | 10 min | 0.5% | 841 |
| SkyWest Airlines | 82% | 13 min | 1.9% | 1,114 |
Monthly on-time trend
Best time to fly from SFO to MFR
Aim for departures around 7 p.m. (88% on-time); avoid 9 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 12 min |
| Tuesday | 85% | 10 min |
| Wednesday | 84% | 10 min |
| Thursday | 80% | 15 min |
| Friday | 81% | 13 min |
| Saturdaybest | 87% | 10 min |
| Sunday | 80% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft35%
- Airline operations36%
- National airspace system20%
- Weather9%
Frequently asked questions
- How often are flights from SFO to MFR delayed?
- 17% of SFO–MFR flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from SFO to MFR?
- United Airlines has the best on-time record on this route at 84%, based on 841 flights. 2 airlines flew SFO–MFR frequently enough to compare in this period.
- What is the best time of day to fly from SFO to MFR?
- Departures around 7 p.m. have the best record (88% on-time), while departures around 9 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to MFR?
- The scheduled SFO–MFR flight time averages 1h 28m over 329 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are SFO to MFR flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to MFR?
- May 2026 was the roughest month in this dataset, with only 66% of arrivals on time. The best was September 2025 at 96%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 1,955 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.