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Flight Reliability

DL 4890 · Delta Air Lines

CHA → New York (CHA–LGA)99% of its flights flew this route. The rest (LGA–ORF) are included in these numbers.

80
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
1 min early
Average arrival delay
3.8%
Cancelled
12 min early
Median arrival delay

Based on 314 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 89% of the time, against 84% between 9 AM–12 PM.

Saturdays have been rough.

DL 4890 arrived on time 96% of the time on Wednesdays and just 68% on Saturdays. That gap is worth planning around.

A bit ahead of the CHA–LGA route.

DL 4890 arrived on time 88% of the time, versus 82% across the CHA–LGA route.

Better than the Delta Air Lines network average.

DL 4890 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon93%(45 flights)
  • Tue83%(48 flights)
  • Wed96%(49 flights)
  • Thu92%(48 flights)
  • Fri86%(49 flights)
  • Sat68%(19 flights)
  • Sun88%(43 flights)
On-time by departure window
  • 6–9 AM89%(276 flights)
  • 9 AM–12 PM84%(25 flights)
On-time trend by month
83%
May

Jun 96% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%27
July 202596%25
August 202590%29
September 202593%30
October 202589%26
November 202587%23
December 202573%15
January 202691%21
February 202686%22
March 202680%25
April 202689%28
May 202683%30
Departures on time
92%
Diverted
0.3%
Flights flown
301
Months covered
12

Same route, other flights

Keep nerding

Based on 314 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.