Skip to content
WanderNerd
Check a flight

Route Reliability

Dallas → San Antonio

DAL–SAT · 247 miles · Dallas Love Field to San Antonio International Airport

83
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
5 min
Average arrival delay
1.1%
Cancelled
2,716
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 80% of the time across 2,716 flights. No comparison to make.

What the data says

Morning flights do better here.

DAL–SAT flights departing between 6–9 AM arrived on time 96% of the time, versus 58% between 9 PM–12 AM.

Sunday scaries are real for this one.

DAL–SAT flights arrived on time 88% of the time on Tuesdays. On Sundays: 74%.

Recent months have been rougher.

DAL–SAT flights arrived on time 75% of the time over the last three months in the data, compared with 85% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(408 flights)
  • Tue88%(411 flights)
  • Wed82%(412 flights)
  • Thu76%(409 flights)
  • Fri80%(404 flights)
  • Sat81%(287 flights)
  • Sun74%(352 flights)
On-time by departure window
  • 6–9 AM96%(588 flights)
  • 9 AM–12 PM89%(400 flights)
  • 12–3 PM85%(567 flights)
  • 3–6 PM71%(456 flights)
  • 6–9 PM64%(514 flights)
  • 9 PM–12 AM58%(158 flights)
On-time trend by month
70%
May

Jun 78% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%210
July 202574%209
August 202579%217
September 202586%218
October 202587%253
November 202579%226
December 202583%227
January 202687%191
February 202686%187
March 202678%248
April 202677%247
May 202670%250

Same trip, other airports

Keep nerding

Based on 2,716 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.