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Route Reliability

Dallas → St. Louis

DAL–STL · 546 miles · Dallas Love Field to St. Louis Lambert International Airport

81
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
7 min
Average arrival delay
1.4%
Cancelled
1,913
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 1,913 flights. No comparison to make.

What the data says

Morning-you made the right choice.

DAL–STL flights departing between 6–9 AM arrived on time 92% of the time, versus 51% between 9 PM–12 AM.

Sunday scaries are real for this one.

DAL–STL flights arrived on time 89% of the time on Tuesdays. On Sundays: 75%.

Recent months have been rougher.

DAL–STL flights arrived on time 71% 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
  • Mon77%(281 flights)
  • Tue89%(272 flights)
  • Wed84%(269 flights)
  • Thu75%(288 flights)
  • Fri77%(285 flights)
  • Sat81%(212 flights)
  • Sun75%(275 flights)
On-time by departure window
  • 6–9 AM92%(460 flights)
  • 9 AM–12 PM85%(354 flights)
  • 12–3 PM81%(237 flights)
  • 3–6 PM73%(307 flights)
  • 6–9 PM74%(389 flights)
  • 9 PM–12 AM51%(135 flights)
On-time trend by month
68%
May

Jun 73% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%158
July 202576%161
August 202581%169
September 202588%172
October 202581%154
November 202581%146
December 202590%153
January 202684%139
February 202687%149
March 202671%164
April 202675%154
May 202668%163

Same trip, other airports

Keep nerding

Based on 1,913 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.