Route
MIA → SFO
Miami International Airport San Francisco International Airport
Alerts at MIA and SFO
How punctual is this route?
- On-time arrivals
- 70.7%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,740
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 37%
- Late-arriving aircraft 31%
- Airline (crew, maintenance, cleaning) 28%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.0% | 91 |
| October 2025 | 82.0% | 122 |
| November 2025 | 81.8% | 143 |
| December 2025 | 77.4% | 137 |
| January 2026 | 74.1% | 153 |
| February 2026 | 77.4% | 137 |
| March 2026 | 86.1% | 154 |
| April 2026 | 57.0% | 153 |
| May 2026 | 56.1% | 164 |
| June 2026 | 56.4% | 174 |
| July 2026 | 55.7% | 176 |
| August 2026 | 80.6% | 136 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| American Airlines | 1,137 | 69.2% | 0.9% | 68 min |
| United Airlines | 603 | 73.7% | 0.2% | 77 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2423
28% late · 193 flights
-
AA2426
48% late · 181 flights
-
UA1257
11% late · 158 flights
-
AA2035
50% late · 149 flights
-
AA1557
12% late · 132 flights
-
AA2933
19% late · 132 flights
-
AA3076
24% late · 91 flights
-
UA2810
55% late · 84 flights
-
AA2565
7% late · 76 flights
-
AA2799
68% late · 71 flights
-
AA3117
31% late · 62 flights
-
AA2753
7% late · 61 flights
-
UA1511
58% late · 46 flights
-
UA1957
9% late · 44 flights
-
UA424
0% late · 36 flights
-
AA1302
17% late · 30 flights
-
AA1842
31% late · 27 flights
-
AA888
29% late · 24 flights
-
AA1650
10% late · 20 flights
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