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Flight Reliability

DL 2538 · Delta Air Lines

Raleigh–Durham → Minneapolis (RDU–MSP)

91
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
3 min early
Average arrival delay
1.6%
Cancelled
12 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Skip Tuesday if you can.

DL 2538 arrived on time 94% of the time on Thursdays. On Tuesdays: 85%.

A bit ahead of the RDU–MSP route.

DL 2538 arrived on time 91% of the time, versus 84% across the RDU–MSP route.

Better than the Delta Air Lines network average.

DL 2538 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 2538 arrived on time 96% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon92%(51 flights)
  • Tue85%(52 flights)
  • Wed92%(51 flights)
  • Thu94%(52 flights)
  • Fri90%(52 flights)
  • Sat90%(50 flights)
  • Sun94%(50 flights)
On-time trend by month
93%
May

Jun 97% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202587%30
August 202594%31
September 202597%30
October 202593%30
November 202593%30
December 202574%31
January 202686%28
February 202686%28
March 202693%30
April 2026100%30
May 202693%30
Departures on time
92%
Diverted
0.3%
Flights flown
358
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.