Skip to content
WanderNerd
Check a flight

Route Reliability

San Antonio → New York

SAT–JFK · 1,587 miles · San Antonio International Airport to John F. Kennedy International Airport

69
Usually Fine
WanderNerd Reliability Score
81%
Arrive within 15 minutes
11 min
Average arrival delay
4.1%
Cancelled
362
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 81% of the time across 362 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

SAT–JFK flights departing between 12–3 PM arrived on time 84% of the time, versus 74% between 9 AM–12 PM.

Thursdays have been rough.

SAT–JFK flights arrived on time 89% of the time on Saturdays and just 73% on Thursdays. That gap is worth planning around.

Keep a backup plan handy.

This route was cancelled 4.1% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

SAT–JFK flights arrived on time 91% of the time over the last three months in the data, compared with 78% in the three months before that.

The breakdown

On-time by weekday
  • Mon86%(50 flights)
  • Tue78%(49 flights)
  • Wed80%(51 flights)
  • Thu73%(51 flights)
  • Fri82%(49 flights)
  • Sat89%(46 flights)
  • Sun77%(48 flights)
On-time by departure window
  • 9 AM–12 PM74%(115 flights)
  • 12–3 PM84%(222 flights)
  • 3–6 PM—(7 flights)
On-time trend by month
90%
May

Jun 59% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%27
July 202553%30
August 202587%31
September 202590%29
October 202584%31
November 202583%29
December 202577%26
January 202685%27
February 202673%26
March 202685%27
April 202697%30
May 202690%31

Same trip, other airports

Keep nerding

Based on 362 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.