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Flight Reliability

DL 4233 · Delta Air Lines

Minneapolis → RHI (MSP–RHI)

85
Pretty Reliable
WanderNerd Reliability Score
89%
Arrive within 15 minutes
4 min early
Average arrival delay
3.0%
Cancelled
20 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Friday is doing you no favors.

DL 4233 arrived on time 94% of the time on Saturdays. On Fridays: 80%.

Better than the Delta Air Lines network average.

DL 4233 arrived on time 89% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 4233 was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.

Ticking up lately.

DL 4233 arrived on time 87% of the time over the last three months in the data, compared with 81% in the three months before that.

The breakdown

On-time by weekday
  • Mon90%(52 flights)
  • Tue90%(50 flights)
  • Wed92%(52 flights)
  • Thu94%(49 flights)
  • Fri80%(50 flights)
  • Sat94%(50 flights)
  • Sun80%(51 flights)
On-time by departure window
  • 12–3 PM—(3 flights)
  • 3–6 PM88%(59 flights)
  • 6–9 PM89%(292 flights)
On-time trend by month
94%
May

Jun 97% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202587%30
August 202594%31
September 202597%30
October 202594%31
November 202590%30
December 202572%29
January 202690%29
February 202682%27
March 202686%28
April 202682%28
May 202694%31
Departures on time
90%
Diverted
0%
Flights flown
354
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.