BOI to LAS flight delays & on-time performance
Nonstop flights from Boise Air Terminal/Gowen Field to Harry Reid International Airport · 519 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOI or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boise (BOI) to Las Vegas (LAS) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.2% were cancelled, and 6% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (92% on time); Southwest Airlines was the least (81%).
- Departures scheduled around 5am did best (100% on time); around 7pm did worst (60%).
- Saturday was the most reliable day to fly (88% on time) and Friday the least (73%).
- The largest source of delay minutes was late-arriving aircraft (53%).
Which airline is most on time from BOI to LAS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 92% | 0.0% | 7 min | 5.6% | 71 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 82% | 0.0% | 10 min | 6.4% | 188 |
| Southwest Airlines | 81% | 0.3% | 11 min | 5.2% | 1,051 |
| Spirit Airlines | 62% | 0.0% | 28 min | 12.8% | 39 |
| Allegiant Air | 50% | 0.0% | 83 min | 21.4% | 14 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am100%63 flights
- 6am97%291 flights
- 7am95%44 flights
- 8am97%59 flights
- 11am79%134 flights
- 12pm77%91 flights
- 1pm73%94 flights
- 2pm74%103 flights
- 3pm89%65 flights
- 5pm73%112 flights
- 6pm69%83 flights
- 7pm60%102 flights
- 8pm67%73 flights
- 9pm57%23 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%0.5% cancelled
- Tuesday87%0.5% cancelled
- Wednesday88%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday73%0.5% cancelled
- Saturday88%0.0% cancelled
- Sunday81%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft53%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
BOI to LAS: common questions
- How often are BOI to LAS flights on time?
- 81% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Boise to Las Vegas cancelled?
- 0.2% of scheduled flights were cancelled (3 of 1,363).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 59 min behind schedule on average, and 5.7% of flights were an hour or more late.
- How long is taxi time at BOI?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to BOI — 73% on time
More flights from Boise
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOI → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.