ON TIMEBOARD

SBA → SEA on time

Santa Barbara (Santa Barbara, CA) to Seattle-Tacoma (Seattle, WA). Every scheduled flight, September 2025 to August 2026.

On time
81%
arrived < 15 min late
Cancelled
1.7%
532 flights
Typical arrival
−6 min
median vs schedule
When late
+52 min
average delay
Flights / day
1
1 airline

81% of flights from Santa Barbara to Seattle arrived on time over the past 12 months. That is about the typical U.S. route. The 10 a.m. departures ran on time 78% of the time; the 7 p.m. ones 77%. 6% 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 SBA → SEA: when a flight was late, it was under 45 minutes late 58% of the time. About 1 in 22 flights landed an hour or more late, and 1 in 266 three hours or more; 1.7% were cancelled outright.

Share of all 532 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Alaska Airlines53281%1.7%−6 min4.5%+52 minAlaska Airlines 65%, Horizon Air 35%

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

40%70%100%10 a.m. departures: 78% on time (109 flights)7810a11 a.m. departures: too few flights (66 flights)11anoon departures: too few flights (12 flights)12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights (70 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights5p6 p.m. departures: too few flights (23 flights)6p7 p.m. departures: 77% on time (251 flights)777p
SBA → SEA, 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 SBA → SEA, each airline's last flight of the day was cancelled 1.2% of the time, against 3.6% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 1.2% of the time (earlier flights: 0.0%). 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
Alaska Airlines7:28 p.m.1.2%1.2%3.6%first flight 10:51 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: November (90%). Worst: July (68%).

40%70%100%Jan: 79% on time (104 flights)79JanFeb: too few flights (85 flights)FebMar: too few flights (93 flights)MarApr: too few flights (98 flights)AprMay: 74% on time (145 flights)74MayJun: 73% on time (176 flights)73JunJul: 68% on time (184 flights)68JulAug: 70% on time (176 flights)70AugSep: 89% on time (133 flights)89SepOct: 89% on time (123 flights)89OctNov: 90% on time (107 flights)90NovDec: 78% on time (120 flights)78Dec

By day of week

DayFlightsOn timeCancelled
Monday82——
Tuesday72——
Wednesday72——
Thursday79——
Friday81——
Saturday66——
Sunday80——

Why flights were late

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

Late inbound plane 69%Air traffic & airport (NAS) 25%Airline (crew, maintenance, ops) 6%

Cancellations: weather 5 · airline 4

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from SBA to SEA on time?

81% of 532 scheduled flights from Santa Barbara, CA to Seattle, WA arrived within 15 minutes of schedule between September 2025 and August 2026. 1.7% were cancelled.

What is the best time of day to fly SBA to SEA?

Flights scheduled to leave at 10 a.m. were the most reliable (78% on time). The 7 p.m. departures were the least (77%).

What month has the most delays from SBA to SEA?

July (68% on time). The best month is November (90%), over 2023–2026.

Is the last flight of the day from SBA to SEA more likely to be cancelled?

No, the opposite. Each airline's last SBA–SEA flight of the day was cancelled 1.2% of the time over the past year, against 3.6% 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.