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Flight Reliability

DL 1127 · Delta Air Lines

Boston → Minneapolis (BOS–MSP)

77
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
1.4%
Cancelled
1 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Wednesday is the weak spot.

DL 1127 arrived on time 79% of the time on Tuesdays. On Wednesdays: 71%.

Lagging the BOS–MSP route.

DL 1127 arrived on time 76% of the time, versus 84% across the BOS–MSP route.

A bit behind the Delta Air Lines network.

DL 1127 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 1127 arrived on time 84% of the time over the last three months in the data, compared with 72% in the three months before that.

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue79%(52 flights)
  • Wed71%(51 flights)
  • Thu79%(52 flights)
  • Fri75%(52 flights)
  • Sat78%(51 flights)
  • Sun72%(50 flights)
On-time by departure window
  • 12–3 PM75%(40 flights)
  • 3–6 PM76%(319 flights)
On-time trend by month
94%
May

Jun 93% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202558%31
August 202587%31
September 202557%30
October 202574%31
November 202573%30
December 202563%30
January 202677%30
February 202677%26
March 202676%29
April 202683%30
May 202694%31
Departures on time
78%
Diverted
0.3%
Flights flown
359
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.