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Flight Reliability

DL 5655 · Delta Air Lines

Boston → Cleveland (BOS–CLE)95% of its flights flew this route. The rest (BOS–CVG, CMH–DTW) are included in these numbers.

47
Bring Snacks
WanderNerd Reliability Score
62%
Arrive within 15 minutes
18 min
Average arrival delay
4.5%
Cancelled
2 min early
Median arrival delay

Based on 333 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

DL 5655 departing between 3–6 PM arrived on time 70% of the time, versus 59% between 6–9 PM.

Sunday scaries are real for this one.

DL 5655 arrived on time 77% of the time on Saturdays and just 53% on Sundays. That gap is worth planning around.

Lagging the BOS–CLE route.

DL 5655 arrived on time 62% of the time, versus 76% across the BOS–CLE route.

Well behind the Delta Air Lines network.

DL 5655 arrived on time 62% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon55%(47 flights)
  • Tue56%(50 flights)
  • Wed65%(49 flights)
  • Thu65%(46 flights)
  • Fri67%(52 flights)
  • Sat77%(26 flights)
  • Sun53%(47 flights)
On-time by departure window
  • 12–3 PM—(2 flights)
  • 3–6 PM70%(27 flights)
  • 6–9 PM59%(206 flights)
  • 9 PM–12 AM65%(82 flights)
On-time trend by month
57%
May

Jun 67% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202548%27
August 202580%30
September 202558%24
October 202548%29
November 202563%27
December 202565%26
January 202686%22
February 202667%21
March 202642%26
April 202664%25
May 202657%30
Departures on time
64%
Diverted
0.3%
Flights flown
317
Months covered
12

Same route, other flights

Keep nerding

Based on 333 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.