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Flight Reliability

DL 1678 · Delta Air Lines

Bozeman → Minneapolis (BZN–MSP)93% of its flights flew this route. The rest (CHS–ATL, VPS–ATL) are included in these numbers.

98
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
7 min early
Average arrival delay
1.1%
Cancelled
14 min early
Median arrival delay

Based on 351 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 1678 arrived on time 100% of the time on Tuesdays. On Sundays: 90%.

A bit ahead of the BZN–MSP route.

DL 1678 arrived on time 94% of the time, versus 89% across the BZN–MSP route.

Better than the Delta Air Lines network average.

DL 1678 arrived on time 94% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon94%(49 flights)
  • Tue100%(50 flights)
  • Wed92%(49 flights)
  • Thu96%(50 flights)
  • Fri92%(50 flights)
  • Sat94%(49 flights)
  • Sun90%(50 flights)
On-time by departure window
  • 3–6 AM93%(59 flights)
  • 6–9 AM94%(288 flights)
On-time trend by month
100%
May

Jun 97% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202587%31
August 202597%31
September 202593%30
October 202597%31
November 202583%30
December 202597%30
January 202694%17
February 202696%28
March 202693%29
April 202693%30
May 2026100%30
Departures on time
92%
Diverted
0%
Flights flown
347
Months covered
12

Same route, other flights

Keep nerding

Based on 351 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.