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Route Reliability

Miami → San Antonio

MIA–SAT · 1,143 miles · Miami International Airport to San Antonio International Airport

67
Usually Fine
WanderNerd Reliability Score
68%
Arrive within 15 minutes
11 min
Average arrival delay
1.4%
Cancelled
483
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 68% of the time across 483 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

MIA–SAT flights departing between 3–6 PM arrived on time 77% of the time, versus 62% between 6–9 PM.

Saturdays have been rough.

MIA–SAT flights arrived on time 78% of the time on Tuesdays and just 59% on Saturdays. That gap is worth planning around.

Recent months have been rougher.

MIA–SAT flights arrived on time 58% of the time over the last three months in the data, compared with 79% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon70%(69 flights)
  • Tue78%(63 flights)
  • Wed75%(65 flights)
  • Thu69%(67 flights)
  • Fri71%(69 flights)
  • Sat59%(68 flights)
  • Sun59%(71 flights)
On-time by departure window
  • 12–3 PM76%(72 flights)
  • 3–6 PM77%(44 flights)
  • 6–9 PM62%(71 flights)
  • 9 PM–12 AM67%(285 flights)
On-time trend by month
59%
May

Jun 47% → May 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%32
July 202566%55
August 202554%35
September 202580%30
October 202582%49
November 202576%33
December 202576%38
January 202676%49
February 202684%38
March 202660%30
April 202657%30
May 202659%53

Same trip, other airports

Keep nerding

Based on 483 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.