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Flight Reliability

DL 385 · Delta Air Lines

Boston → Atlanta (BOS–ATL)

85
Pretty Reliable
WanderNerd Reliability Score
90%
Arrive within 15 minutes
2 min early
Average arrival delay
3.2%
Cancelled
11 min early
Median arrival delay

Based on 348 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 385 departing between 12–3 PM arrived on time 97% of the time, versus 80% between 6–9 PM.

Sunday scaries are real for this one.

DL 385 arrived on time 98% of the time on Wednesdays. On Sundays: 84%.

Better than the BOS–ATL route average.

DL 385 arrived on time 90% of the time, versus 79% across the BOS–ATL route.

Better than the Delta Air Lines network average.

DL 385 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon87%(47 flights)
  • Tue88%(51 flights)
  • Wed98%(52 flights)
  • Thu87%(52 flights)
  • Fri94%(49 flights)
  • Sat89%(36 flights)
  • Sun84%(50 flights)
On-time by departure window
  • 6–9 AM93%(15 flights)
  • 9 AM–12 PM90%(227 flights)
  • 12–3 PM97%(33 flights)
  • 3–6 PM83%(47 flights)
  • 6–9 PM80%(15 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%29
July 202597%31
August 202590%30
September 202590%30
October 202585%27
November 202585%27
December 202583%30
January 202687%23
February 202682%22
March 202689%28
April 202690%29
May 202697%31
Departures on time
89%
Diverted
0%
Flights flown
337
Months covered
12

Same route, other flights

Keep nerding

Based on 348 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.