Route on-time record
LAS to BOI: most on-time flights and the best time to fly
Las Vegas (Harry Reid International Airport) to Boise (Boise Air Terminal/Gowen Field). 1,430 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 0.2% were cancelled. The most reliable flight number was Southwest 1793 at 8:40 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LAS → BOI
Las Vegas to Boise: 1,430 nonstop flights a year
On time (12 months)
74%
Cancelled
0.2%
avg delay 16 min
Best time to leave
Before 9 AM
91% on time vs 58% 3 to 6 PM
Most reliable airline
Alaska
80% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Southwest 1793
8:40 AM → 11:30 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-29.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 58%).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 1793 fares Opens this date on Aviasales#2 · Southwest 3816
9:40 AM → 12:30 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-27.
82%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 88% of the time (16 flights, Jun 2025 to May 2026).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 3816 fares Opens this date on Aviasales#3 · Southwest 2553
9:40 PM → 12:25 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 81% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 32 flights
Find Southwest 2553 fares Opens this date on Aviasales#4 · Southwest 1197
7:35 AM → 10:20 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-04-06.
79%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 87% of the time (15 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 58%).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 1197 fares Opens this date on Aviasales#5 · Alaska 228
7:59 PM → 10:52 PM1h 53m nonstop
Local times, typical schedule. Last flown 2026-04-21.
79%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 77% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 35 scheduled flights.
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- 66% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 35 flights
Find Alaska 228 fares Opens this date on Aviasales#6 · Southwest 2551
11:40 AM → 2:30 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-04-04.
78%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 85% of the time (13 flights, Jun 2025 to May 2026).
- Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 2551 fares Opens this date on Aviasales#7 · Southwest 2830
9:05 PM → 11:50 PM1h 45m nonstop
Local times, typical schedule. Last flown 2026-04-05.
77%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 77% of the time (13 flights, Jun 2025 to May 2026).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- 52% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 2830 fares Opens this date on Aviasales#8 · Southwest 2792
11:55 AM → 2:45 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
- Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2792 fares Opens this date on Aviasales#9 · SkyWest 3347 · sold as United Express, Delta Connection, American Eagle or Alaska
2:13 PM → 5:16 PM2h 03m nonstop
Local times, typical schedule. Last flown 2026-05-12.
76%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.0%
- Avg arrival delay
- 45 min
- Arrived on time 76% of the time (21 flights, Jun 2025 to May 2026).
- Departs inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- 54% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find 2:13 PM flight fares Opens this date on Aviasales#10 · SkyWest 3312 · sold as United Express, Delta Connection, American Eagle or Alaska
7:29 PM → 10:34 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-03-16.
73%
chance on time
- On time (history)
- 72%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 72% of the time (29 flights, Jun 2025 to May 2026).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
- Short track record (29 flights), so its score leans on the airline's record at this hour.
Limited track record · 29 flights
Find 7:29 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines80%
71 flights · 86% on time as flown · 0.1% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)75%
240 flights · 74% on time as flown · 0.3% cancel
- Southwest Airlines74%
1,049 flights · 74% on time as flown · 0.2% cancel
- Spirit Airlines71%
56 flights · 68% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
231 flights · avg delay 6 min
- 9 AM to noon82%
205 flights · avg delay 8 min
- Noon to 3 PM74%
214 flights · avg delay 19 min
- 3 to 6 PM58%
194 flights · avg delay 25 min
- 6 to 9 PM77%
287 flights · avg delay 17 min
- After 9 PM65%
299 flights · avg delay 20 min
Best day: Saturday (85%). Worst: Sunday (71%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft54%
- Airline (crew, maintenance, boarding)33%
- Air traffic control and airport volume11%
- Severe weather2%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
LAS to BOI questions
- What time of day is best to fly LAS to BOI?
- Before 9 AM: 91% of flights arrived on time, against 58% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from LAS to BOI?
- Alaska, with a season-adjusted 80% chance of operating and arriving on time over 71 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on LAS to BOI?
- July (63% on time); the best was January (84%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from LAS
- BOI to LAS (return)
- LAS to LAX 79%
- LAS to DEN 77%
- LAS to SAN 68%
- LAS to PHX 78%
- LAS to SFO 66%
- LAS to SEA 82%
- LAS to ORD 77%
- LAS to DFW 81%
- LAS to ATL 84%
- LAS to SNA 82%
- LAS to SMF 79%
- LAS to BUR 80%
Live status: FAA delays and ground stops