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Route Reliability

San Antonio → Boston

SAT–BOS · 1,764 miles · San Antonio International Airport to Boston Logan International Airport

49
Bring Snacks
WanderNerd Reliability Score
61%
Arrive within 15 minutes
26 min
Average arrival delay
2.0%
Cancelled
355
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 61% of the time across 355 flights. No comparison to make.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 67% of the time, against 61% between 12–3 PM.

Friday is doing you no favors.

SAT–BOS flights arrived on time 71% of the time on Saturdays and just 50% on Fridays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon67%(49 flights)
  • Tue55%(51 flights)
  • Wed57%(51 flights)
  • Thu62%(47 flights)
  • Fri50%(48 flights)
  • Sat71%(49 flights)
  • Sun67%(49 flights)
On-time by departure window
  • 12–3 PM61%(332 flights)
  • 3–6 PM67%(12 flights)
On-time trend by month
69%
May

Jun 59% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202557%30
August 202575%28
September 202523%30
October 202537%30
November 202570%27
December 202567%27
January 202682%27
February 202663%27
March 202674%31
April 202666%29
May 202669%29

Keep nerding

Based on 355 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.