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Flight Reliability

DL 5616 · Delta Air Lines

Boston → Indianapolis (BOS–IND)95% of its flights flew this route. The rest (JFK–IND, PIT–BOS) are included in these numbers.

71
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
4 min
Average arrival delay
3.5%
Cancelled
15 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 81% of the time, against 76% between 6–9 PM.

Sunday scaries are real for this one.

DL 5616 arrived on time 86% of the time on Wednesdays and just 66% on Sundays. That gap is worth planning around.

A bit behind the BOS–IND route.

DL 5616 arrived on time 77% of the time, versus 82% across the BOS–IND route.

A bit behind the Delta Air Lines network.

DL 5616 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon72%(50 flights)
  • Tue78%(50 flights)
  • Wed86%(50 flights)
  • Thu83%(48 flights)
  • Fri71%(49 flights)
  • Sat85%(33 flights)
  • Sun66%(47 flights)
On-time by departure window
  • 12–3 PM—(2 flights)
  • 3–6 PM81%(53 flights)
  • 6–9 PM76%(272 flights)
On-time trend by month
87%
May

Jun 67% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202569%29
August 202583%30
September 202569%29
October 202577%26
November 202575%24
December 202580%30
January 202687%23
February 202680%20
March 202671%28
April 202682%28
May 202687%30
Departures on time
73%
Diverted
0%
Flights flown
327
Months covered
12

Same route, other flights

Keep nerding

Based on 339 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.