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1,449 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: almost all depart on time. After 4 pm it’s 2 in 3.

Best time to leave 5–6 am 100% arrive on time from BOI

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

5
6
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BOI
98
93
100
79
81
71
66
62
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55
Las Vegas flights leaving BOI 4–5 pm: 1Close ×
AS 2087flown by Horizon BOI 16:15 LAS 17:12 1h 57m 52 84% 3.8% 74 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

Alaska (incl. SkyWest, Horizon) 345 85% 0.9% 67 min
Southwest 1,051 82% 0.3% 55 min
Spirit 39 – 0.0% 72 min
Allegiant 14 – 0.0% 165 min

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.

No flight on this route ran 150+ times in the year.

All 6 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.

Alaska BOI LAS 1h 58m 85% 0.9% 345 Flying now
Southwest BOI LAS 1h 50m 82% 0.3% 1,051 Flying now
Spirit BOI LAS 1h 51m 62%few flights 0.0% 39 Not flying now
Allegiant BOI LAS 1h 49m 50%few flights 0.0% 14 Not flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON