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Flight Reliability

DL 4892 · Delta Air Lines

Atlanta → OAJ (ATL–OAJ)92% of its flights flew this route. The rest (GSO–DTW, DCA–MSP) are included in these numbers.

80
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
4 min
Average arrival delay
2.4%
Cancelled
10 min early
Median arrival delay

Based on 248 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 4892 departing between 6–9 AM arrived on time 93% of the time, versus 80% between 9 PM–12 AM.

Mondays have been rough.

DL 4892 arrived on time 91% of the time on Saturdays and just 73% on Mondays. That gap is worth planning around.

Slipping a little lately.

DL 4892 arrived on time 84% of the time over the last three months in the data, compared with 87% in the three months before that.

The breakdown

On-time by weekday
  • Mon73%(37 flights)
  • Tue74%(34 flights)
  • Wed86%(35 flights)
  • Thu83%(35 flights)
  • Fri82%(34 flights)
  • Sat91%(33 flights)
  • Sun82%(34 flights)
On-time by departure window
  • 6–9 AM93%(15 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM—(2 flights)
  • 6–9 PM80%(147 flights)
  • 9 PM–12 AM80%(76 flights)
On-time trend by month
86%
Jan

Jun 66% → Jan 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%29
July 202571%31
August 202577%31
September 202593%30
October 202590%31
November 202593%28
December 202573%30
January 202686%28
Departures on time
80%
Diverted
0%
Flights flown
242
Months covered
9

Same route, other flights

Keep nerding

Based on 248 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.