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Route Reliability

Newark → San Antonio

EWR–SAT · 1,569 miles · Newark Liberty International Airport to San Antonio International Airport

90
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
7 min early
Average arrival delay
1.1%
Cancelled
541
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines88% on time · 530 flights
  • Spirit Airlines60% on time · 11 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 91% of the time, against 85% between 12–3 PM.

Skip Saturday if you can.

EWR–SAT flights arrived on time 92% of the time on Tuesdays. On Saturdays: 79%.

Ticking up lately.

EWR–SAT flights arrived on time 94% of the time over the last three months in the data, compared with 88% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon88%(82 flights)
  • Tue92%(78 flights)
  • Wed88%(80 flights)
  • Thu89%(82 flights)
  • Fri88%(86 flights)
  • Sat79%(53 flights)
  • Sun85%(73 flights)
On-time by departure window
  • 6–9 AM91%(162 flights)
  • 9 AM–12 PM88%(197 flights)
  • 12–3 PM85%(168 flights)
  • 3–6 PM—(7 flights)
On-time trend by month
94%
May

Jun 76% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%38
July 202576%33
August 202584%31
September 202594%34
October 202578%55
November 202595%56
December 202578%58
January 202694%34
February 202691%35
March 202696%54
April 202690%52
May 202694%54

Same trip, other airports

Keep nerding

Based on 541 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.