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Flight Reliability

DL 862 · Delta Air Lines

Atlanta → Boston (ATL–BOS)84% of its flights flew this route. The rest (MSY–LGA, LGA–MSY) are included in these numbers.

81
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
4 min
Average arrival delay
2.6%
Cancelled
10 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 862 departing between 9 AM–12 PM arrived on time 84% of the time, versus 77% between 6–9 PM.

Mondays have been rough.

DL 862 arrived on time 90% of the time on Wednesdays and just 67% on Mondays. That gap is worth planning around.

Better than the ATL–BOS route average.

DL 862 arrived on time 83% of the time, versus 74% across the ATL–BOS route.

Trending in the right direction.

DL 862 arrived on time 89% of the time over the last three months in the data, compared with 79% in the three months before that.

The breakdown

On-time by weekday
  • Mon67%(48 flights)
  • Tue88%(49 flights)
  • Wed90%(51 flights)
  • Thu90%(50 flights)
  • Fri82%(50 flights)
  • Sat88%(41 flights)
  • Sun77%(48 flights)
On-time by departure window
  • 9 AM–12 PM84%(254 flights)
  • 12–3 PM83%(30 flights)
  • 3–6 PM—(2 flights)
  • 6–9 PM77%(51 flights)
On-time trend by month
96%
May

Jun 90% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202580%30
August 202593%30
September 202573%30
October 202568%31
November 202590%30
December 202583%30
January 202680%25
February 202673%26
March 202681%26
April 202691%21
May 202696%28
Departures on time
81%
Diverted
0%
Flights flown
337
Months covered
12

Same route, other flights

Keep nerding

Based on 346 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.