Route · MIA → SFO · 2020–2025 BTS data
Miami to San Francisco
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MIA to SFO (Miami to San Francisco) ranks #1709 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 72.8%
- On-time
- -6.2 pts
- vs US avg
- 73 min
- Delay when late
- 7,410
- Flights
- #1709 of 4927
- Corpus placement
Cancelled
0.9%
Best Month
Apr 2025 88%
Worst Month
Mar 2024 42%
Distance
2,585 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 137 | 31 | 0 | 0 | AA,UA |
| Nov 2025 | 143 | 26 | 0 | 0 | UA,AA |
| Oct 2025 | 122 | 22 | 0 | 0 | AA,UA |
| Sep 2025 | 91 | 20 | 0 | 0 | UA,AA |
| Aug 2025 | 142 | 41 | 1 | 0 | AA,UA |
| Jul 2025 | 155 | 44 | 1 | 1 | AA,UA |
| Jun 2025 | 150 | 36 | 0 | 0 | AA,UA |
| May 2025 | 155 | 36 | 0 | 2 | AA,UA |
| Apr 2025 | 150 | 18 | 0 | 2 | UA,AA |
| Mar 2025 | 153 | 46 | 0 | 2 | AA,UA |
| Feb 2025 | 132 | 32 | 0 | 0 | AA,UA |
| Jan 2025 | 147 | 29 | 0 | 0 | AA,UA |
| Dec 2024 | 146 | 50 | 1 | 0 | AA,UA |
| Nov 2024 | 149 | 41 | 1 | 0 | UA,AA |
| Oct 2024 | 129 | 30 | 1 | 0 | UA,AA |
| Sep 2024 | 120 | 35 | 1 | 0 | UA,AA |
| Aug 2024 | 124 | 45 | 0 | 0 | AA,UA |
| Jul 2024 | 120 | 45 | 3 | 0 | AA,UA |
| Jun 2024 | 94 | 40 | 3 | 1 | AA,UA |
| May 2024 | 120 | 55 | 0 | 1 | AA,UA |
| Apr 2024 | 120 | 56 | 0 | 0 | AA,UA |
| Mar 2024 | 124 | 72 | 1 | 0 | AA,UA |
| Feb 2024 | 130 | 62 | 1 | 4 | AA,UA |
| Jan 2024 | 154 | 50 | 14 | 4 | AA,UA |
MIA–SFO seasonal on-time pattern
Best: January (78.3%) · weakest: June (67.7%)
Strongest calendar month
January
78.3% on-time · ~116 flights/mo
Busiest calendar month
March
~121 flights/mo avg
Weakest calendar month
June
67.7% on-time · ~99 flights/mo
Cancellation Rate
0.9%
28 of 3,207 flights
Diversion Rate
0.5%
17 of 3,207 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
MIA on-time profileSFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
SFO on-time profileCompare the two airports
See MIA and SFO side by side on delays, cancellations, and reliability.
Compare MIA vs SFOOrigin-hub reliability standing
Softer reliability from MIA
Among 63 routes leaving MIA, only 25 (including this one) clear below 75% on-time, while 1 stay ≥85% and 37 sit mid-band. Travelers comparing MIA options should weigh this 72.8% print against those peers · fleet on-time rank #4703 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to MIA–SFO.
Routes with a similar on-time rate
What the Data Says About MIA to SFO
On-time performance on the MIA to SFO pairing (Miami to San Francisco) trails a chunk of the network: 72.8% of 7,410 tracked flights arrived on schedule, with a 72.8-minute average delay on the ones that ran late. The route spans about 2,585 miles across 4 carriers. Cancellations over the trailing 24 months hit 0.9% (28 of 3,207 flights), with 0.5% diverted.
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 88% on-time, while Mar 2024 came in at just 42% - a 46-point swing worth factoring into travel timing.
On the multi-year calendar, MIA–SFO peaks in January at 78.3% on-time while March carries the heaviest traffic (~121 flights per month) ; the softest month is June at 67.7%, a 10.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does MIA to SFO rank among US routes by traffic? ▼
How often are flights delayed from MIA to SFO? ▼
What is the cancellation rate for MIA to SFO? ▼
How far is the flight from MIA to SFO? ▼
When is the best time to fly from MIA to SFO? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using MIA–SFO data
MIA–SFO sits 6.2 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare MIA and SFO airport profiles: delay causes and top routes differ even on the same corridor. MIA airport
- If your dates flex, January (78.3% on-time) beats June (67.7%) on this corridor. Seasonal chart
- 4 other routes post a similar 72.8% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.