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Flight Reliability

DL 404 · Delta Air Lines

Atlanta → New York (ATL–LGA)96% of its flights flew this route. The rest (RDU–BOS, DTW–MYR) are included in these numbers.

84
Pretty Reliable
WanderNerd Reliability Score
92%
Arrive within 15 minutes
7 min early
Average arrival delay
3.9%
Cancelled
11 min early
Median arrival delay

Based on 258 historical flights. Data through May 2026.

What the data says

Skip Tuesday if you can.

DL 404 arrived on time 96% of the time on Thursdays. On Tuesdays: 88%.

Well ahead of the ATL–LGA route.

DL 404 arrived on time 92% of the time, versus 73% across the ATL–LGA route.

Better than the Delta Air Lines network average.

DL 404 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 404 was cancelled 3.9% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon89%(46 flights)
  • Tue88%(48 flights)
  • Wed90%(50 flights)
  • Thu96%(51 flights)
  • Fri94%(46 flights)
  • Sat—(6 flights)
  • Sun—(1 flights)
On-time by departure window
  • 6–9 AM91%(238 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
86%
May

Jun 90% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%20
July 202584%19
August 2025100%22
September 202596%24
October 202596%23
November 202584%19
December 202578%18
January 2026100%22
February 202694%18
March 202695%20
April 202691%22
May 202686%21
Departures on time
90%
Diverted
0%
Flights flown
248
Months covered
12

Same route, other flights

Keep nerding

Based on 258 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.