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Route Reliability

New York → St. Louis

JFK–STL · 892 miles · John F. Kennedy International Airport to St. Louis Lambert International Airport

79
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
6 min
Average arrival delay
2.1%
Cancelled
143
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 79% of the time across 143 flights. No comparison to make.

What the data says

Departure time hasn't mattered much.

On-time rates stay between 77% and 80% across the day.

Mondays have been rough.

JFK–STL flights arrived on time 86% of the time on Saturdays and just 65% on Mondays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon65%(20 flights)
  • Tue80%(20 flights)
  • Wed79%(19 flights)
  • Thu80%(20 flights)
  • Fri85%(20 flights)
  • Sat86%(21 flights)
  • Sun80%(20 flights)
On-time by departure window
  • 12–3 PM80%(118 flights)
  • 3–6 PM77%(22 flights)
On-time trend by month
79%
May

Sep 91% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
September 202591%23
October 202581%31
November 202576%29
December 202572%29
May 202679%24

Same trip, other airports

Keep nerding

Based on 143 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.