ON TIMEBOARD
SMF Sacramento / AUS Austin

SMF → AUS on time

Sacramento (Sacramento, CA) to Austin-Bergstrom (Austin, TX). Every scheduled flight, September 2025 to August 2026.

On time
78%
arrived < 15 min late
Cancelled
0.3%
378 flights
Typical arrival
0 min
median vs schedule
When late
+38 min
average delay
Flights / day
1
1 airline

78% of flights from Sacramento to Austin arrived on time over the past 12 months. That is about the typical U.S. route. 4% 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 SMF → AUS: when a flight was late, it was under 45 minutes late 76% of the time. About 1 in 25 flights landed an hour or more late; 0.3% were cancelled outright.

Share of all 378 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines37878%0.3%0 min4.0%+38 minSouthwest Airlines

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 SMF). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%5 a.m. departures: too few flights (48 flights)5a6 a.m. departures: too few flights (43 flights)6a7 a.m. departures: 87% on time (118 flights)877a8 a.m. departures: too few flights (20 flights)8a9 a.m. departures: too few flights (34 flights)9a10 a.m. departures: too few flights (48 flights)10a11 a.m. departures: too few flights (20 flights)11anoon departures: too few flights (21 flights)12p
SMF → AUS, 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

By month

Each calendar month pooled over 2023–2026. Best: February (91%). Worst: June (68%).

40%70%100%Jan: 84% on time (124 flights)84JanFeb: 91% on time (100 flights)91FebMar: 77% on time (117 flights)77MarApr: 89% on time (135 flights)89AprMay: 78% on time (146 flights)78MayJun: 68% on time (140 flights)68JunJul: 79% on time (147 flights)79JulAug: 85% on time (117 flights)85AugSep: 89% on time (140 flights)89SepOct: 81% on time (143 flights)81OctNov: 76% on time (142 flights)76NovDec: 86% on time (146 flights)86Dec

By day of week

DayFlightsOn timeCancelled
Monday53——
Tuesday52——
Wednesday52——
Thursday52——
Friday52——
Saturday57——
Sunday60——

Why flights were late

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

Airline (crew, maintenance, ops) 46%Late inbound plane 30%Air traffic & airport (NAS) 24%

Cancellations: airline 1

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from SMF to AUS on time?

78% of 378 scheduled flights from Sacramento, CA to Austin, TX arrived within 15 minutes of schedule between September 2025 and August 2026. 0.3% were cancelled.

What month has the most delays from SMF to AUS?

June (68% on time). The best month is February (91%), over 2023–2026.

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.