Route on-time record
LAS to PHX: most on-time flights and the best time to fly
Las Vegas (Harry Reid International Airport) to Phoenix (Phoenix Sky Harbor International Airport). 6,060 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Southwest 3842 at 5:55 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LAS → PHX
Las Vegas to Phoenix: 6,060 nonstop flights a year
On time (12 months)
78%
Cancelled
1.1%
avg delay 15 min
Best time to leave
Before 9 AM
92% on time vs 68% after 9 PM
Most reliable airline
American
81% chance on time
Lowest nonstop fare seen in the next two months: $122 (Frontier 1896 on 2026-10-26). 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 3842
5:55 AM → 7:10 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 192; its record covers all of them.
92%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.0%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (98 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; After 9 PM: 68%).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
Moderate track record · 98 flights
Find Southwest 3842 fares Opens this date on Aviasales#2 · American 1808
6:15 AM → 7:30 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.6%
- Avg arrival delay
- 11 min
- Arrived on time 91% of the time (346 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; After 9 PM: 68%).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
Strong track record · 346 flights
Find American 1808 fares Opens this date on Aviasales#3 · American 2953
10:04 AM → 11:22 AM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1611; its record covers all of them.
89%
chance on time
- On time (history)
- 90%
- Cancelled
- 1.3%
- Avg arrival delay
- 11 min
- Arrived on time 90% of the time (313 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.
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 313 flights
Find American 2953 fares Opens this date on Aviasales#4 · Southwest 786
7:05 AM → 8:20 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-27. Same departure also flew as Southwest 1931; its record covers all of them.
88%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 92% of the time (24 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; After 9 PM: 68%).
- 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 (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 786 fares Opens this date on Aviasales#5 · American 2004
9:56 AM → 11:10 AM1h 14m nonstop
Local times, typical schedule. Last flown 2026-05-29.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 88% of the time (8 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 (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#6 · Southwest 3018
7:35 AM → 8:50 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 3621; its record covers all of them.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 87% of the time (61 flights, Jun 2025 to May 2026).
- Never cancelled in 61 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; After 9 PM: 68%).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 104 ground stops and delay programs started).
Moderate track record · 61 flights
Find Southwest 3018 fares Opens this date on Aviasales#7 · Frontier 4048
9:59 AM → 11:23 AM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.3%
- Avg arrival delay
- 18 min
- Arrived on time 88% of the time (222 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).
- 59% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 222 flights
Find Frontier 4048 fares Opens this date on Aviasales#8 · Southwest 2064
9:50 AM → 11:05 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
84%
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).
- 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 2064 fares Opens this date on Aviasales#9 · Southwest 295
1:20 PM → 2:40 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-30.
83%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (24 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.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 295 fares Opens this date on Aviasales#10 · Frontier 1020
9:10 AM → 10:33 AM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-04.
82%
chance on time
- On time (history)
- 84%
- Cancelled
- 1.0%
- Avg arrival delay
- 7 min
- Arrived on time 84% of the time (97 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).
Moderate track record · 97 flights
Find Frontier 1020 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines81%
1,693 flights · 82% on time as flown · 0.9% cancel
- Frontier Airlines78%
874 flights · 79% on time as flown · 1.2% cancel
- Southwest Airlines76%
3,449 flights · 77% on time as flown · 1.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
1,393 flights · avg delay 7 min
- 9 AM to noon86%
1,026 flights · avg delay 10 min
- Noon to 3 PM76%
1,073 flights · avg delay 16 min
- 3 to 6 PM69%
1,108 flights · avg delay 20 min
- 6 to 9 PM69%
1,032 flights · avg delay 23 min
- After 9 PM68%
428 flights · avg delay 23 min
Best day: Saturday (87%). Worst: Thursday (74%).
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 aircraft57%
- Airline (crew, maintenance, boarding)27%
- Air traffic control and airport volume15%
- 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 PHX questions
- What time of day is best to fly LAS to PHX?
- Before 9 AM: 92% of flights arrived on time, against 68% for departures after 9 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 PHX?
- American, with a season-adjusted 81% chance of operating and arriving on time over 1,693 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 PHX?
- July (71% on time); the best was December (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
- PHX to LAS (return)
- LAS to LAX 79%
- LAS to DEN 77%
- LAS to SAN 68%
- 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%
- LAS to RNO 80%
Live status: FAA delays and ground stops