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Flight Reliability

DL 5699 · Delta Air Lines

New York → Washington (JFK–DCA)96% of its flights flew this route. The rest (DCA–JFK) are included in these numbers.

40
Bring Snacks
WanderNerd Reliability Score
63%
Arrive within 15 minutes
22 min
Average arrival delay
5.8%
Cancelled
3 min
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 5699 departing between 6–9 AM arrived on time 94% of the time, versus 41% between 12–3 PM.

Friday is doing you no favors.

DL 5699 arrived on time 71% of the time on Mondays. On Fridays: 56%.

A bit behind the JFK–DCA route.

DL 5699 arrived on time 63% of the time, versus 68% across the JFK–DCA route.

Well behind the Delta Air Lines network.

DL 5699 arrived on time 63% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon71%(48 flights)
  • Tue65%(51 flights)
  • Wed64%(47 flights)
  • Thu58%(48 flights)
  • Fri56%(50 flights)
  • Sat70%(50 flights)
  • Sun57%(49 flights)
On-time by departure window
  • 6–9 AM94%(16 flights)
  • 12–3 PM41%(59 flights)
  • 3–6 PM66%(268 flights)
On-time trend by month
63%
May

Jun 46% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%26
July 202552%25
August 202560%30
September 202586%29
October 202577%30
November 202576%29
December 202583%30
January 202650%28
February 202639%26
March 202643%30
April 202673%30
May 202663%30
Departures on time
69%
Diverted
0.3%
Flights flown
343
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.