ON TIMEBOARD

BOI → SNA on time

Boise /Gowen (Boise, ID) to Orange County John Wayne (Santa Ana, CA). Every scheduled flight, September 2025 to August 2026.

On time
81%
arrived < 15 min late
Cancelled
0.6%
516 flights
Typical arrival
−5 min
median vs schedule
When late
+65 min
average delay
Flights / day
1
2 airlines

81% of flights from Boise to Santa Ana arrived on time over the past 12 months. That is about the typical U.S. route. Most reliable airline: Alaska Airlines (87%). 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 BOI → SNA: when a flight was late, it was under 45 minutes late 59% of the time. About 1 in 20 flights landed an hour or more late, and 1 in 65 three hours or more; 0.6% were cancelled outright.

Share of all 516 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Alaska Airlines36587%0.5%−7 min2.7%+55 minAlaska Airlines 65%, Horizon Air 35%
Allegiant Air15168%0.7%−1 min10.6%+73 minAllegiant Air

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

40%70%100%7 a.m. departures: too few flights (35 flights)7a8 a.m. departures: too few flights (55 flights)8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights (83 flights)10a11 a.m. departures: too few flights (50 flights)11anoon departures: too few flights (76 flights)12p1 p.m. departures: too few flights (41 flights)1p2 p.m. departures: too few flights (48 flights)2p3 p.m. departures: too few flights (37 flights)3p4 p.m. departures: too few flights (58 flights)4p5 p.m. departures: too few flights (25 flights)5p
BOI → SNA, 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: May (86%). Worst: July (76%).

40%70%100%Jan: 82% on time (110 flights)82JanFeb: too few flights (94 flights)FebMar: 77% on time (105 flights)77MarApr: too few flights (98 flights)AprMay: 86% on time (102 flights)86MayJun: 81% on time (101 flights)81JunJul: 76% on time (106 flights)76JulAug: 84% on time (100 flights)84AugSep: too few flights (59 flights)SepOct: too few flights (75 flights)OctNov: too few flights (75 flights)NovDec: too few flights (96 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday67——
Tuesday55——
Wednesday55——
Thursday99——
Friday66——
Saturday72——
Sunday10275%0.0%

Why flights were late

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

Late inbound plane 40%Airline (crew, maintenance, ops) 34%Air traffic & airport (NAS) 23%Severe weather 4%

Cancellations: airline 2 · weather 1

Month by month

Not enough months with data to draw a trend.

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Boise or Santa Ana. BOI → LAX has been 9 points more reliable.

RouteFlightsOn timeCancelled
BOI → SNA (this route)51681%0.6%
BOI → LAX Boise /Gowen to Los Angeles LAX1,68990%0.2%
BOI → BUR Boise /Gowen to Hollywood Burbank49985%0.4%

Questions

How often are flights from BOI to SNA on time?

81% of 516 scheduled flights from Boise, ID to Santa Ana, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.6% were cancelled.

Which airline is most on time from BOI to SNA?

Alaska Airlines: 87% of its 365 flights on the route arrived on time. Allegiant Air: 68%.

What month has the most delays from BOI to SNA?

July (76% on time). The best month is May (86%), 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.