Route on-time record
MFR to SFO: most on-time flights and the best time to fly
Medford (Rogue Valley International-Medford Airport) to San Francisco (San Francisco International Airport). 1,027 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was United 717 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MFR → SFO
Medford to San Francisco: 1,027 nonstop flights a year
On time (12 months)
73%
Cancelled
0.9%
avg delay 19 min
Best time to leave
Before 9 AM
86% on time vs 65% noon to 3 PM
Most reliable airline
United
76% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · United 717
6:00 AM → 7:24 AM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.5%
- Avg arrival delay
- 5 min
- Arrived on time 94% of the time (193 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 65%).
- Lands inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 193 flights
Find United 717 fares Opens this date on Aviasales#2 · SkyWest 5740 · sold as United Express, Delta Connection, American Eagle or Alaska
6:00 AM → 7:35 AM1h 35m nonstop
Local times, typical schedule. Last flown 2026-05-20.
89%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 92% of the time (73 flights, Jun 2025 to May 2026).
- Never cancelled in 73 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 65%).
- Lands inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 73 flights
Find 6:00 AM flight fares Opens this date on Aviasales#3 · SkyWest 5883 · sold as United Express, Delta Connection, American Eagle or Alaska
6:31 PM → 8:07 PM1h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31.
65%
chance on time
- On time (history)
- 64%
- Cancelled
- 2.8%
- Avg arrival delay
- 20 min
- Arrived on time 64% of the time (104 flights, Jun 2025 to May 2026).
Moderate track record · 104 flights
Find 6:31 PM flight fares Opens this date on Aviasales#4 · United 1754
2:12 PM → 3:35 PM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
64%
chance on time
- On time (history)
- 63%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 63% of the time (211 flights, Jun 2025 to May 2026).
- Never cancelled in 211 scheduled flights.
- Leaves in this route's least on-time window (Noon to 3 PM: 65% on time; Before 9 AM: 86%).
Strong track record · 211 flights
Find United 1754 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines76%
406 flights · 78% on time as flown · 0.4% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)70%
621 flights · 70% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
361 flights · avg delay 14 min
- Noon to 3 PM65%
365 flights · avg delay 21 min
- 6 to 9 PM66%
301 flights · avg delay 24 min
Best day: Saturday (80%). Worst: Monday (75%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume44%
- Late-arriving aircraft27%
- Airline (crew, maintenance, boarding)16%
- Severe weather13%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
MFR to SFO questions
- What time of day is best to fly MFR to SFO?
- Before 9 AM: 86% of flights arrived on time, against 65% for departures noon to 3 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from MFR to SFO?
- United, with a season-adjusted 76% chance of operating and arriving on time over 406 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on MFR to SFO?
- May (68% on time); the best was August (88%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from MFR
- SFO to MFR (return)
- MFR to SEA 91%
- MFR to PHX 87%
- MFR to DEN 84%
- MFR to SLC 91%
Live status: FAA delays and ground stops