ON TIMEBOARD

SFO → MFR on time

San Francisco (San Francisco, CA) to Rogue Valley -Medford (Medford, OR). Every scheduled flight, September 2025 to August 2026.

On time
77%
arrived < 15 min late
Cancelled
1.1%
1,017 flights
Typical arrival
−5 min
median vs schedule
When late
+71 min
average delay
Flights / day
3
1 airline

77% of flights from San Francisco to Medford arrived on time over the past 12 months. That is about the typical U.S. route. The 10 a.m. departures ran on time 79% of the time; the 9 p.m. ones 69%. 9% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for SFO → MFR: when a flight was late, it was under 45 minutes late 53% of the time. About 1 in 14 flights landed an hour or more late, and 1 in 102 three hours or more; 1.1% were cancelled outright.

Share of all 1,017 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines1,01777%1.1%−5 min7.1%+71 minSkyWest 61%, United Airlines 39%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at SFO). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 a.m. departures: too few flights (50 flights)9a10 a.m. departures: 79% on time (313 flights)7910a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: 74% on time (325 flights)744p5 p.m. departures: too few flights5p6 p.m. departures: too few flights (7 flights)6p7 p.m. departures: too few flights (31 flights)7p8 p.m. departures: too few flights (52 flights)8p9 p.m. departures: 69% on time (239 flights)699p
SFO → MFR, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On SFO → MFR, each airline's last flight of the day was cancelled 1.7% of the time, against 0.8% for its earlier flights (2.1× as often). It arrived 3+ hours late 1.4% of the time (earlier flights: 0.6%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
United Airlines9:24 p.m.1.7%1.4%0.8%first flight 10:37 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in MFR tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: September (91%). Worst: July (74%).

40%70%100%Jan: 80% on time (222 flights)80JanFeb: 78% on time (205 flights)78FebMar: 86% on time (233 flights)86MarApr: 80% on time (231 flights)80AprMay: 79% on time (235 flights)79MayJun: 80% on time (230 flights)80JunJul: 74% on time (246 flights)74JulAug: 81% on time (247 flights)81AugSep: 91% on time (264 flights)91SepOct: 89% on time (271 flights)89OctNov: 82% on time (260 flights)82NovDec: 78% on time (267 flights)78Dec

By day of week

DayFlightsOn timeCancelled
Monday15573%1.9%
Tuesday13780%0.0%
Wednesday15177%1.3%
Thursday15174%1.3%
Friday15177%0.0%
Saturday12078%2.5%
Sunday15278%0.7%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 38%Airline (crew, maintenance, ops) 28%Air traffic & airport (NAS) 24%Severe weather 10%

Cancellations: air traffic/airport 6 · weather 5

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
UA 232210:37 a.m.15679%0.0%−1 minUnited Airlines
UA 57064:22 p.m.19869%1.5%−3 minSkyWest

Worst days in the past year

DateFlightsOn timeCancelled
Apr 20, 202630%2
Jun 10, 202630%0
May 28, 202630%1
Jan 3, 202630%2
Dec 22, 202530%0

Questions

How often are flights from SFO to MFR on time?

77% of 1,017 scheduled flights from San Francisco, CA to Medford, OR arrived within 15 minutes of schedule between September 2025 and August 2026. 1.1% were cancelled.

What is the best time of day to fly SFO to MFR?

Flights scheduled to leave at 10 a.m. were the most reliable (79% on time). The 9 p.m. departures were the least (69%).

What month has the most delays from SFO to MFR?

July (74% on time). The best month is September (91%), over 2023–2026.

Is the last flight of the day from SFO to MFR more likely to be cancelled?

Yes. Each airline's last SFO–MFR flight of the day was cancelled 1.7% of the time over the past year, against 0.8% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.