MIA to SAN flight delays
Miami, FL (MIA) San Diego, CA (SAN) · 2,267 miles
618 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
75.95%
Arrived on time
Within 15 minutes of schedule
1.13%
Cancelled
Share of scheduled flights
54 min
When late, late by
Average across delayed arrivals
14 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 48.1 points more punctual than in September — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. SAN to MIA arrives on time 8.4 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only American Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Miami to San Diego run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, American Airlines arrived on time most often on MIA to SAN. Flights ran closest to schedule in January and worst in September.
Every airline on MIA to SAN
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| American Airlines | 618 | 75.95% | 1.13% | 54 min | C |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SAN to MIA San Diego back to Miami 84.38% on time BOther routes from Miami
Common questions
Are flights from Miami to San Diego usually delayed?
75.95% of flights on the MIA to SAN route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Miami to San Diego?
Only American Airlines appears in the published record on this route, with 618 flights and 75.95% arriving on time.
How often are MIA to SAN flights cancelled?
1.13% of scheduled flights did not operate — about 11 in every thousand. That is in the normal range.
What is the best month to fly Miami to San Diego?
January, when 89.5% of flights arrived on time. The worst was September at 41.4%.
When MIA to SAN flights are late, how late are they?
About 54 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MIA to SAN during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →