Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 4242 · Delta Air Lines

Minneapolis → CIU (MSP–CIU)

64
A Little Dicey
WanderNerd Reliability Score
80%
Arrive within 15 minutes
9 min
Average arrival delay
3.6%
Cancelled
10 min early
Median arrival delay

Based on 357 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 84% of the time, against 78% between 12–3 PM.

Friday is doing you no favors.

DL 4242 arrived on time 90% of the time on Wednesdays. On Fridays: 75%.

Keep a backup plan handy.

DL 4242 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

DL 4242 arrived on time 80% of the time over the last three months in the data, compared with 68% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue79%(43 flights)
  • Wed90%(49 flights)
  • Thu81%(48 flights)
  • Fri75%(48 flights)
  • Sat76%(50 flights)
  • Sun78%(50 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM84%(120 flights)
  • 12–3 PM78%(214 flights)
On-time trend by month
92%
May

Jun 83% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%29
July 202580%30
August 202594%31
September 202580%30
October 202587%31
November 202590%30
December 202571%28
January 202663%27
February 202671%24
March 202673%26
April 202674%23
May 202692%26
Departures on time
83%
Diverted
2.5%
Flights flown
335
Months covered
12

Keep nerding

Based on 357 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.