Miami to Phoenix Flight Delays
Sample size: 4,973 MIA–PHX flights, January 2023 to December 2025 (BTS). 25.84% of Miami to Phoenix flights arrived at least 15 minutes late. That is 1.6 points worse than the 24.2% median for those routes, so schedule padding matters here. Departure time moves the odds more than anything else on this route: 07:00 departures run 15.9% late against 33.85% for 16:00. Tuesday is the calmest day at 24.29%, Sunday the worst at 27.99%. Cancellations (2024 to 2025) peak in August at 2.33% of scheduled flights and bottom out in January at 0%. Last updated: 2026-10-01.
These figures are historical US domestic rates, not a forecast for one departure. Use the free delay prediction for your trip before you book.
MIA airport delay guide · PHX airport delay guide · Predict a MIA to PHX flight
Best time to fly MIA to PHX
The best time to fly MIA to PHX is the 7 AM departure and fly on a Tuesday, not a Sunday (24.29% against 27.99%): 15.9% of 7 AM flights arrived 15+ minutes late, against 33.85% at 4 PM.
Lowest observed delay rates depart 07:00, 10:00, 19:00. The highest sit at 13:00, 16:00–17:00. 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 |
|---|---|---|
| 07:00 | 15.9% | 1,000 |
| 10:00 | 18.16% | 391 |
| 11:00 | 27.03% | 148 |
| 13:00 | 29.88% | 482 |
| 16:00 | 33.85% | 260 |
| 17:00 | 32.6% | 911 |
| 19:00 | 25.88% | 456 |
| 20:00 | 28.73% | 268 |
| 21:00 | 29.82% | 721 |
MIA to PHX flight time and distance
Scheduled gate-to-gate time from MIA to PHX is a median 5 h 3 min. Flights actually took a median 4 h 54 min gate to gate, including 4 h 25 min in the air. 2.5% ran 30 or more minutes over schedule and 68.9% arrived sooner than scheduled (BTS data, January 2023 to December 2025).
MIA to PHX is 1,972 miles (BTS data).
| Airline | Scheduled (median) | Actual (median) | In the air (median) | 30+ min over schedule | Flights |
|---|---|---|---|---|---|
| American Airlines | 5 h 3 min | 4 h 54 min | 4 h 25 min | 2.5% | 4,973 |
How late, and why
When a MIA to PHX flight was late (15+ minutes), it arrived an average of 76 minutes late (median 41). 8.5% of all completed flights arrived an hour or more late (BTS data, 2023 to 2025).
Of the delay minutes on late MIA to PHX flights, 42.3% were caused by a late incoming aircraft, 35.7% by the airline (crew, maintenance, ground handling), 16.1% by the air-traffic system (volume, non-extreme weather, airport operations), 5.4% by extreme weather and 0.4% by security (BTS data, 2023 to 2025).
| Cause | Share of delay minutes |
|---|---|
| late incoming aircraft | 42.3% |
| airline | 35.7% |
| air-traffic system | 16.1% |
| extreme weather | 5.4% |
| security | 0.4% |
BTS assigns causes to delay minutes on flights that arrived 15+ minutes late. "Air-traffic system" includes non-extreme weather that slows traffic.
MIA to PHX delays by day of week
| Day | Delayed 15+ min | Flights observed |
|---|---|---|
| Mon | 24.37% | 714 |
| Tue | 24.29% | 708 |
| Wed | 24.93% | 698 |
| Thu | 26.59% | 707 |
| Fri | 25.67% | 713 |
| Sat | 26.99% | 715 |
| Sun | 27.99% | 718 |
Month-by-month cancellation pattern
Share of scheduled MIA–PHX 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% | 316 |
| Feb | 0% | 299 |
| Mar | 1.17% | 341 |
| Apr | 0.61% | 328 |
| May | 0.32% | 315 |
| Jun | 1.47% | 273 |
| Jul | 0.98% | 306 |
| Aug | 2.33% | 257 |
| Sep | 0.45% | 224 |
| Oct | 0.67% | 298 |
| Nov | 0.67% | 300 |
| Dec | 0% | 327 |
Airlines on MIA to PHX: delays and cancellations
American Airlines flies this route today. 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 |
|---|---|---|---|---|
| American Airlines | 100% | 25.84% | 0.7% | 3,584 |
Related pages
- MIA delays: rate, worst hours and live risk
- PHX delays: rate, worst hours and live risk
- US airline cancellation rates
- Thanksgiving and Christmas 2026 flight delay guide
- Predict a MIA to PHX flight
Check your odds: Will my flight be delayed? · Will my flight be cancelled?
MIA vs PHX: airport conditions
Both ends of a route shape its delay profile. These are DelayGuard's operational scores for Miami and Phoenix.
| Measure | MIA (Miami) | PHX (Phoenix) |
|---|---|---|
| Congestion | high | moderate |
| Weather risk | moderate | low |
| NAS vulnerability | high | low |
| Average taxi-out | 17 min | 13 min |
| Runways | 4 | 3 |
MIA to PHX questions
- How long is the flight from Miami to Phoenix?
- Scheduled gate-to-gate time from MIA to PHX is a median 5 h 3 min, and flights actually took a median 4 h 54 min including 4 h 25 min in the air. 2.5% ran 30+ minutes over schedule (BTS data, January 2023 to December 2025).
- How often do MIA to PHX flights get delayed?
- Across 4,973 recorded MIA–PHX departures, January 2023 to December 2025 (BTS), 25.84% arrived at least 15 minutes late. Departure time matters most: 7:00 departures run 15.9% late against 33.85% for 16:00. Actual delay frequency varies by airline, time of day, and season.
- What is the best time of year to fly MIA to PHX?
- Miami (FL) sees its highest delays during June–September (convective/thunderstorm season). Phoenix (AZ) peaks during November–February (coastal fog) with generally low risk year-round. The dominant seasonal risk on this route sits at the origin (Miami) — use the DelayGuard predictor to check conditions for your specific travel date.
- Which airline is most reliable on MIA to PHX?
- Among the carriers BTS records on MIA→PHX, ranked by each airline's network-wide delay rate — the share of that airline's flights that arrived 15 or more minutes late, January 2023 to December 2025 (BTS), not measured on this route — the strongest are American Airlines (25.0%). Use the DelayGuard predictor above to check your specific airline, date, and departure hour — conditions vary significantly by day.
- How late are MIA to PHX flights when they are delayed?
- When a MIA to PHX flight was late (15+ minutes), it arrived an average of 76 minutes late (median 41). 8.5% 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.