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Flight Reliability

DL 1635 · Delta Air Lines

Kansas City → Minneapolis (MCI–MSP)

84
Pretty Reliable
WanderNerd Reliability Score
92%
Arrive within 15 minutes
2 min early
Average arrival delay
3.6%
Cancelled
16 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Monday is the weak spot.

DL 1635 arrived on time 96% of the time on Saturdays. On Mondays: 84%.

Better than the MCI–MSP route average.

DL 1635 arrived on time 92% of the time, versus 80% across the MCI–MSP route.

Better than the Delta Air Lines network average.

DL 1635 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 1635 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon84%(50 flights)
  • Tue89%(52 flights)
  • Wed94%(52 flights)
  • Thu94%(51 flights)
  • Fri94%(50 flights)
  • Sat96%(48 flights)
  • Sun90%(48 flights)
On-time trend by month
97%
May

Jun 89% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%26
July 202594%31
August 202590%30
September 202583%30
October 2025100%31
November 202593%28
December 202587%30
January 202697%30
February 202693%27
March 202693%30
April 202683%29
May 202697%29
Departures on time
94%
Diverted
0.3%
Flights flown
351
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.