Route on-time record
PHX to LAS: most on-time flights and the best time to fly
Phoenix (Phoenix Sky Harbor International Airport) to Las Vegas (Harry Reid International Airport). 6,055 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was Southwest 3805 at 5:45 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PHX → LAS
Phoenix to Las Vegas: 6,055 nonstop flights a year
On time (12 months)
79%
Cancelled
1.0%
avg delay 14 min
Best time to leave
Before 9 AM
93% on time vs 67% 3 to 6 PM
Most reliable airline
Frontier
81% chance on time
Lowest nonstop fare seen in the next two months: $45 (Frontier 1019 on 2026-11-17). 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 3805
5:45 AM → 6:55 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 98%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 98% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 55 flights
Find Southwest 3805 fares Opens this date on Aviasales#2 · Southwest 2958
7:10 AM → 8:20 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 96% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 54 flights
Find Southwest 2958 fares Opens this date on Aviasales#3 · Southwest 857
5:30 AM → 6:40 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
93%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 33 flights
Find Southwest 857 fares Opens this date on Aviasales#4 · Frontier 3983
11:33 AM → 12:52 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-18.
92%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.9%
- Avg arrival delay
- 4 min
- Arrived on time 94% of the time (313 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Strong track record · 313 flights
Find Frontier 3983 fares Opens this date on Aviasales#5 · Southwest 1350
6:55 AM → 8:10 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-04-04.
91%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (13 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 1350 fares Opens this date on Aviasales#6 · Southwest 2045
7:30 AM → 8:45 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
91%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (28 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 2045 fares Opens this date on Aviasales#7 · American 2004
7:43 AM → 8:59 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-29.
90%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find American 2004 fares Opens this date on Aviasales#8 · American 1611
7:51 AM → 9:06 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-20.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 1.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (312 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Strong track record · 312 flights
Find American 1611 fares Opens this date on Aviasales#9 · Frontier 1019
7:40 AM → 8:54 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 86% of the time (140 flights, Jun 2025 to May 2026).
- Never cancelled in 140 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 3 to 6 PM: 67%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Moderate track record · 140 flights
Find Frontier 1019 fares Opens this date on Aviasales#10 · American 2037
10:29 AM → 11:49 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find American 2037 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Frontier Airlines81%
871 flights · 83% on time as flown · 1.0% cancel
- American Airlines78%
1,692 flights · 79% on time as flown · 0.9% cancel
- Southwest Airlines77%
3,448 flights · 78% on time as flown · 1.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
1,386 flights · avg delay 4 min
- 9 AM to noon85%
1,208 flights · avg delay 10 min
- Noon to 3 PM76%
940 flights · avg delay 17 min
- 3 to 6 PM67%
885 flights · avg delay 21 min
- 6 to 9 PM70%
1,051 flights · avg delay 23 min
- After 9 PM72%
585 flights · avg delay 17 min
Best day: Saturday (84%). Worst: Friday (73%).
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 aircraft52%
- Airline (crew, maintenance, boarding)29%
- Air traffic control and airport volume16%
- Severe weather4%
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
PHX to LAS questions
- What time of day is best to fly PHX to LAS?
- Before 9 AM: 93% of flights arrived on time, against 67% 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 PHX to LAS?
- Frontier, with a season-adjusted 81% chance of operating and arriving on time over 871 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 PHX to LAS?
- July (72% on time); the best was November (83%), 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 PHX
- LAS to PHX (return)
- PHX to DEN 77%
- PHX to LAX 83%
- PHX to SEA 83%
- PHX to SAN 74%
- PHX to SLC 83%
- PHX to ORD 77%
- PHX to DFW 80%
- PHX to SFO 71%
- PHX to SNA 80%
- PHX to ATL 82%
- PHX to PDX 79%
- PHX to SMF 80%
Live status: FAA delays and ground stops