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Route Reliability

San Antonio → Dallas

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

87
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min
Average arrival delay
1.2%
Cancelled
2,717
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 84% of the time across 2,717 flights. No comparison to make.

What the data says

Morning flights do better here.

SAT–DAL flights departing between 6–9 AM arrived on time 99% of the time, versus 70% between 6–9 PM.

Tuesday comes out ahead.

A small edge: 88% on time on Tuesdays against 81% on Thursdays.

Slipping a little lately.

SAT–DAL flights arrived on time 84% of the time over the last three months in the data, compared with 87% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon83%(407 flights)
  • Tue88%(407 flights)
  • Wed86%(411 flights)
  • Thu81%(408 flights)
  • Fri83%(403 flights)
  • Sat87%(291 flights)
  • Sun82%(352 flights)
On-time by departure window
  • 3–6 AM94%(224 flights)
  • 6–9 AM99%(393 flights)
  • 9 AM–12 PM91%(516 flights)
  • 12–3 PM85%(526 flights)
  • 3–6 PM74%(409 flights)
  • 6–9 PM70%(488 flights)
  • 9 PM–12 AM81%(123 flights)
On-time trend by month
83%
May

Jun 77% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%209
July 202577%207
August 202586%217
September 202589%217
October 202589%254
November 202581%225
December 202585%227
January 202689%195
February 202688%186
March 202684%249
April 202684%248
May 202683%245

Same trip, other airports

Keep nerding

Based on 2,717 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.