ON TIMEBOARD

SFO → RNO on time

San Francisco (San Francisco, CA) to Reno Tahoe (Reno, NV). Every scheduled flight, September 2025 to August 2026.

On time
71%
arrived < 15 min late
Cancelled
1.1%
1,979 flights
Typical arrival
−4 min
median vs schedule
When late
+68 min
average delay
Flights / day
5
1 airline

71% of flights from San Francisco to Reno arrived on time over the past 12 months. That is worse than the typical U.S. route. The 8 a.m. departures ran on time 86% of the time; the noon ones 57%. 11% 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 → RNO: when a flight was late, it was under 45 minutes late 53% of the time. About 1 in 11 flights landed an hour or more late, and 1 in 64 three hours or more; 1.1% were cancelled outright.

Share of all 1,979 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines1,97971%1.1%−4 min9.3%+68 minSkyWest 52%, United Airlines 48%

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%8 a.m. departures: 86% on time (362 flights)868a9 a.m. departures: too few flights9a10 a.m. departures: too few flights (32 flights)10a11 a.m. departures: 76% on time (152 flights)7611anoon departures: 57% on time (200 flights)5712p1 p.m. departures: 73% on time (122 flights)731p2 p.m. departures: too few flights (84 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: 62% on time (309 flights)624p5 p.m. departures: too few flights5p6 p.m. departures: 86% on time (228 flights)866p7 p.m. departures: too few flights (63 flights)7p8 p.m. departures: too few flights (13 flights)8p9 p.m. departures: too few flights (70 flights)9p10 p.m. departures: 62% on time (340 flights)6210p
SFO → RNO, 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 → RNO, each airline's last flight of the day was cancelled 0.5% of the time, against 1.2% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 0.5% of the time (earlier flights: 1.9%). 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 Airlines10:45 p.m.0.5%0.5%1.2%first flight 8:13 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.

By month

Each calendar month pooled over 2023–2026. Best: September (88%). Worst: June (70%).

40%70%100%Jan: 80% on time (457 flights)80JanFeb: 77% on time (422 flights)77FebMar: 81% on time (465 flights)81MarApr: 76% on time (466 flights)76AprMay: 75% on time (459 flights)75MayJun: 70% on time (371 flights)70JunJul: 72% on time (357 flights)72JulAug: 75% on time (397 flights)75AugSep: 88% on time (360 flights)88SepOct: 84% on time (406 flights)84OctNov: 77% on time (443 flights)77NovDec: 75% on time (451 flights)75Dec

By day of week

DayFlightsOn timeCancelled
Monday29265%0.7%
Tuesday28380%2.1%
Wednesday28475%1.1%
Thursday28066%0.4%
Friday28764%0.7%
Saturday26579%1.5%
Sunday28869%1.0%

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) 33%Air traffic & airport (NAS) 24%Severe weather 6%

Cancellations: weather 10 · air traffic/airport 9 · airline 2

Month by month

40%70%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2023: 90% on time, 0.0% cancelledOct 2023: 90% on time, 0.0% cancelledNov 2023: 88% on time, 0.0% cancelledDec 2023: 74% on time, 0.0% cancelledJan 2024: 75% on time, 0.9% cancelledFeb 2024: 75% on time, 3.5% cancelledMar 2024: 77% on time, 2.4% cancelledApr 2024: 71% on time, 0.8% cancelledMay 2024: 83% on time, 0.0% cancelledAug 2024: 84% on time, 0.0% cancelledSep 2024: 81% on time, 0.0% cancelledOct 2024: 80% on time, 0.0% cancelledNov 2024: 72% on time, 3.4% cancelledDec 2024: 81% on time, 0.0% cancelledJan 2025: 91% on time, 0.0% cancelledFeb 2025: 79% on time, 5.0% cancelledMar 2025: 81% on time, 3.2% cancelledApr 2025: 89% on time, 0.0% cancelledMay 2025: 81% on time, 0.6% cancelledJun 2025: 79% on time, 0.0% cancelledJul 2025: 79% on time, 0.0% cancelledAug 2025: 87% on time, 0.0% cancelledSep 2025: 92% on time, 0.8% cancelledOct 2025: 81% on time, 0.0% cancelledNov 2025: 75% on time, 4.5% cancelledDec 2025: 70% on time, 1.6% cancelledJan 2026: 75% on time, 1.6% cancelledFeb 2026: 76% on time, 1.8% cancelledMar 2026: 84% on time, 0.0% cancelledApr 2026: 65% on time, 0.6% cancelledMay 2026: 64% on time, 1.2% cancelledJun 2026: 55% on time, 0.0% cancelledJul 2026: 57% on time, 0.0% cancelledAug 2026: 62% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
SFO → RNO, monthly on-time and cancellation rate.

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 53948:13 a.m.33186%0.9%−10 minSkyWest
UA 570712:12 p.m.25460%0.8%+7 minSkyWest
UA 175710:45 p.m.27263%0.4%+6 minUnited Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Dec 21, 202570%2
Jun 8, 202650%0
Dec 25, 202540%0
Jan 3, 2026714%3
Jan 5, 2026714%0

Questions

How often are flights from SFO to RNO on time?

71% of 1,979 scheduled flights from San Francisco, CA to Reno, NV 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 RNO?

Flights scheduled to leave at 8 a.m. were the most reliable (86% on time). The noon departures were the least (57%).

What month has the most delays from SFO to RNO?

June (70% on time). The best month is September (88%), over 2023–2026.

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

No, the opposite. Each airline's last SFO–RNO flight of the day was cancelled 0.5% of the time over the past year, against 1.2% 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.