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Route Reliability

New Orleans → San Antonio

MSY–SAT · 495 miles · Louis Armstrong New Orleans International Airport to San Antonio International Airport

86
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
6 min
Average arrival delay
0.3%
Cancelled
355
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 79% of the time across 355 flights. No comparison to make.

What the data says

Morning flights do better here.

MSY–SAT flights departing between 6–9 AM arrived on time 100% of the time, versus 69% between 6–9 PM.

Friday is doing you no favors.

MSY–SAT flights arrived on time 88% of the time on Tuesdays and just 67% on Fridays. That gap is worth planning around.

It basically never cancels.

Out of 355 scheduled flights, only 0.3% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon85%(53 flights)
  • Tue88%(43 flights)
  • Wed86%(43 flights)
  • Thu77%(53 flights)
  • Fri67%(54 flights)
  • Sat82%(39 flights)
  • Sun75%(69 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM100%(12 flights)
  • 9 AM–12 PM78%(23 flights)
  • 12–3 PM80%(148 flights)
  • 3–6 PM81%(149 flights)
  • 6–9 PM69%(13 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
77%
May

Jun 77% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%31
July 202565%31
August 202561%23
September 202586%21
October 202577%30
November 202590%30
December 202577%31
January 202690%30
February 202683%35
March 202678%32
April 202690%30
May 202677%30

Keep nerding

Based on 355 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.