BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
BOI→LAS

Boise, ID (BOI) to Las Vegas, NV (LAS) flight delay odds

81.0% of 1,401 official scheduled BOI-to-LAS flights arrived on time; 11.3% arrived at least 30 minutes late and 0.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
81.0%arrived on time
11.3%30+ min late
0.1%cancelled
1,401scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.9%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+3.3 mincompleted flights

Which departure time was most reliable for BOI to LAS?

Among qualifying BOI-to-LAS departure window results, Early morning had the highest on-time rate: 96.9% of 457 flights. Evening was lowest at 68.6% across 420 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning45796.9%2.0%0.2%
Late morning14880.4%8.8%0.0%
Afternoon34977.4%12.3%0.0%
Evening42068.6%19.8%0.2%

Which weekday was most reliable for BOI to LAS?

Among qualifying BOI-to-LAS weekday results, Saturday had the highest on-time rate: 87.8% of 164 flights. Friday was lowest at 73.1% across 219 flights.

DayFlightsOn time30+ minCancelled
Monday22073.2%15.0%0.5%
Tuesday19086.8%5.3%0.0%
Wednesday18386.9%6.0%0.0%
Thursday20980.9%9.6%0.0%
Friday21973.1%19.6%0.5%
Saturday16487.8%7.9%0.0%
Sunday21681.9%13.0%0.0%

Which airline was most reliable for BOI to LAS?

Among qualifying BOI-to-LAS airline results, Alaska Airlines had the highest on-time rate: 91.5% of 71 flights. Spirit Airlines was lowest at 66.0% across 47 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,05081.4%10.2%0.2%
SkyWest Airlines21980.8%12.3%0.0%
Alaska Airlines7191.5%8.5%0.0%
Spirit Airlines4766.0%27.7%0.0%
Allegiant Air1450.0%35.7%0.0%

Which month was most reliable for BOI to LAS?

Among qualifying BOI-to-LAS month results, January 2026 had the highest on-time rate: 90.5% of 116 flights. September 2025 was lowest at 73.0% across 115 flights.

MonthFlightsOn time30+ minCancelled
July 202512782.7%11.8%0.0%
August 202512080.8%14.2%0.0%
September 202511573.0%18.3%0.9%
October 202512182.6%7.4%0.0%
November 202511377.0%15.0%0.0%
December 202512084.2%9.2%0.0%
January 202611690.5%7.8%0.0%
February 202610985.3%5.5%0.0%
March 202612283.6%6.6%0.8%
April 202612083.3%8.3%0.0%
May 202612374.0%16.3%0.0%
June 20269573.7%15.8%0.0%

What drove BOI to LAS delay minutes?

Late aircraft was the largest recorded BOI-to-LAS delay category, accounting for 52.6% of 15,496 BTS-attributed delay minutes during July 2025–June 2026.

Airline17.3%
Late aircraft52.6%
National airspace25.6%
Weather4.5%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.