Phoenix to Las Vegas Flight Delays
Sample size: 20,213 PHX–LAS flights, January 2023 to December 2025 (BTS). 23.16% of Phoenix to Las Vegas flights arrived at least 15 minutes late. That tracks the 24.2% median for the major US domestic routes DelayGuard covers almost exactly. Departure time moves the odds more than anything else on this route: 05:00 departures run 3.62% late against 36.21% for 16:00. Saturday is the calmest day at 17.22%, Friday the worst at 28.7%. Cancellations (2024 to 2025) peak in November at 2.37% of scheduled flights and bottom out in October at 0.08%. Last updated: 2026-10-01.
These figures are historical US domestic rates, not a forecast for one departure. Use the per-flight delay estimate before you book.
PHX airport delay guide · LAS airport delay guide · Predict a PHX to LAS flight
Best time to fly PHX to LAS
The best time to fly PHX to LAS is the 5 AM departure and fly on a Saturday, not a Friday (17.22% against 28.7%): 3.62% of 5 AM flights arrived 15+ minutes late, against 36.21% at 4 PM.
Lowest observed delay rates depart 05:00–07:00. The highest sit at 15:00–16:00, 18:00. Only departure hours with at least 100 recorded flights are listed, so sparse hours are blank rather than estimated.
| Departure hour | Delayed 15+ min | Flights observed |
|---|---|---|
| 05:00 | 3.62% | 276 |
| 06:00 | 4.75% | 884 |
| 07:00 | 6.62% | 1,436 |
| 08:00 | 10.01% | 1,678 |
| 09:00 | 12.91% | 968 |
| 10:00 | 19.59% | 1,511 |
| 11:00 | 17.41% | 1,539 |
| 12:00 | 23.81% | 907 |
| 13:00 | 25.84% | 1,014 |
| 14:00 | 32.16% | 1,362 |
| 15:00 | 33.89% | 1,012 |
| 16:00 | 36.21% | 1,091 |
| 17:00 | 33.14% | 1,059 |
| 18:00 | 33.17% | 1,028 |
| 19:00 | 32.75% | 861 |
| 20:00 | 30.28% | 1,635 |
| 21:00 | 29.05% | 988 |
| 22:00 | 28.55% | 865 |
PHX to LAS flight time and distance
Scheduled gate-to-gate time from PHX to LAS is a median 1 h 10 min. Flights actually took a median 1 h 5 min gate to gate, including 44 min in the air. 1.2% ran 30 or more minutes over schedule and 75.0% arrived sooner than scheduled (BTS data, January 2023 to December 2025).
PHX to LAS is 255 miles (BTS data).
| Airline | Scheduled (median) | Actual (median) | In the air (median) | 30+ min over schedule | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 1 h 10 min | 1 h 2 min | 44 min | 0.8% | 10,813 |
| American Airlines | 1 h 12 min | 1 h 9 min | 44 min | 1.7% | 5,402 |
| Frontier Airlines | 1 h 15 min | 1 h 9 min | 44 min | 1.2% | 2,829 |
| Spirit Airlines (ceased operating May 2026) | 1 h 10 min | 1 h 6 min | 44 min | 2.1% | 1,159 |
How late, and why
When a PHX to LAS flight was late (15+ minutes), it arrived an average of 61 minutes late (median 40). 7.8% of all completed flights arrived an hour or more late (BTS data, 2023 to 2025).
Of the delay minutes on late PHX to LAS flights, 48.4% were caused by a late incoming aircraft, 26.1% by the airline (crew, maintenance, ground handling), 23.2% by the air-traffic system (volume, non-extreme weather, airport operations), 2.0% by extreme weather and 0.2% by security (BTS data, 2023 to 2025).
| Cause | Share of delay minutes |
|---|---|
| late incoming aircraft | 48.4% |
| airline | 26.1% |
| air-traffic system | 23.2% |
| extreme weather | 2.0% |
| security | 0.2% |
BTS assigns causes to delay minutes on flights that arrived 15+ minutes late. "Air-traffic system" includes non-extreme weather that slows traffic.
PHX to LAS delays by day of week
| Day | Delayed 15+ min | Flights observed |
|---|---|---|
| Mon | 22.88% | 3,107 |
| Tue | 20.87% | 2,722 |
| Wed | 19.23% | 2,813 |
| Thu | 26.55% | 3,074 |
| Fri | 28.7% | 3,091 |
| Sat | 17.22% | 2,370 |
| Sun | 24.74% | 3,036 |
Month-by-month cancellation pattern
Share of scheduled PHX–LAS flights cancelled in each month, from BTS 2024–2025 on-time reporting. These are cancellations, not delays. Delay figures on this page cover January 2023 to December 2025.
| Month | Cancelled | Flights scheduled |
|---|---|---|
| Jan | 0.62% | 1,136 |
| Feb | 0.55% | 1,093 |
| Mar | 1.05% | 1,242 |
| Apr | 0.5% | 1,193 |
| May | 0.25% | 1,218 |
| Jun | 1.04% | 1,053 |
| Jul | 0.95% | 1,055 |
| Aug | 0.66% | 1,067 |
| Sep | 1.27% | 1,027 |
| Oct | 0.08% | 1,194 |
| Nov | 2.37% | 1,097 |
| Dec | 0.29% | 1,050 |
Airlines on PHX to LAS: delays and cancellations
Southwest Airlines, American Airlines and Frontier Airlines fly this route today. Spirit Airlines also appear in the history below but has ceased operations. Only carriers with at least 200 scheduled flights on the pairing are listed. Delay rates cover January 2023 to December 2025; cancellation rates cover 2024 to 2025.
| Airline | Share of flights | Delayed 15+ min | Cancelled | Flights scheduled |
|---|---|---|---|---|
| Southwest Airlines | 53% | 22.87% | 0.86% | 7,062 |
| American Airlines | 29% | 23.81% | 0.42% | 3,830 |
| Frontier Airlines | 15% | 22.83% | 1.07% | 2,056 |
| Spirit Airlines (ceased operations 2 May 2026) | 3% | 23.81% | 1.5% | 467 |
Related pages
- PHX delays: rate, worst hours and live risk
- LAS delays: rate, worst hours and live risk
- US airline cancellation rates
- Thanksgiving and Christmas 2026 flight delay guide
- Predict a PHX to LAS flight
Check your odds: Will my flight be delayed? · Will my flight be cancelled?
PHX vs LAS: airport conditions
Both ends of a route shape its delay profile. These are DelayGuard's operational scores for Phoenix and Las Vegas.
| Measure | PHX (Phoenix) | LAS (Las Vegas) |
|---|---|---|
| Congestion | moderate | moderate |
| Weather risk | low | low |
| NAS vulnerability | low | moderate |
| Average taxi-out | 13 min | 13 min |
| Runways | 3 | 4 |
PHX to LAS questions
- How long is the flight from Phoenix to Las Vegas?
- Scheduled gate-to-gate time from PHX to LAS is a median 1 h 10 min, and flights actually took a median 1 h 5 min including 44 min in the air. 1.2% ran 30+ minutes over schedule (BTS data, January 2023 to December 2025).
- How often do PHX to LAS flights get delayed?
- Across 20,213 recorded PHX–LAS departures, January 2023 to December 2025 (BTS), 23.16% arrived at least 15 minutes late. Departure time matters most: 5:00 departures run 3.62% late against 36.21% for 16:00. Actual delay frequency varies by airline, time of day, and season.
- What is the best time of year to fly PHX to LAS?
- Both Phoenix and Las Vegas share the same primary risk window: November–February (coastal fog) with generally low risk year-round. Plan around those periods for the lowest delay probability on this route.
- Which airline is most reliable on PHX to LAS?
- On PHX→LAS, Frontier Airlines has the lowest measured delay rate at 22.83% of 2,829 flights, and American Airlines the highest at 23.81% (BTS, January 2023 to December 2025). American Airlines cancels the fewest at 0.42% (2024 to 2025). These are route-specific figures, not airline-wide averages.
- How late are PHX to LAS flights when they are delayed?
- When a PHX to LAS flight was late (15+ minutes), it arrived an average of 61 minutes late (median 40). 7.8% of all completed flights arrived an hour or more late (BTS data, 2023 to 2025).
- How accurate is DelayGuard's delay prediction for this route?
- DelayGuard's delay risk score comes from an ML model trained on BTS data (3.95 million US domestic flights, 2023 to mid-2025), with live weather data (within 5 days of departure) and FAA NAS advisories (within 6 hours) — a likelihood of delay, not a guarantee.
Delay figures reflect arrivals 15 or more minutes late in BTS on-time reporting. Cancellation figures are separate and count flights that never operated. Hours, days and months with fewer than 100 recorded flights are omitted rather than estimated.