Flight number record
DL 2558
Delta Air Lines · Minneapolis to Boston
- Route
- MSP → BOS
- Departs
- 13:20
- Flights
- 282
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2558, check with Delta Air Lines.
DL 2558 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 282 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so DL 2558 runs 7 points behind the country as a whole. Across a thousand flights that is about 73 extra late arrivals.
Key figures
On time
70.0%
Arrivals under 15 minutes late, of 280 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.35%
National rate is 1.89%
1 hour+ late
11.1%
National rate is 8.3%
These figures cover 282 flights between September 2025 and August 2026. Beyond the headline rate, 11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2558 flies
DL 2558 flies MSP to BOS without a single fixed slot. Its most common scheduled departure was 13:20, used on 96 of 282 flights, with 13:15 (33 flights) and 13:09 (31 flights) next.
- Departs 13:2096 flights34.0%
- Departs 13:1533 flights11.7%
- Departs 13:0931 flights11.0%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 13:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 2558 runs 8 points worse at 70.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 2558 next to MSP to BOS
Every carrier on MSP to BOS combined arrived on time 76.4% of the time across 1,849 flights, so DL 2558 is 6 points behind it. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2558thin sample | 282 | 70.0% | 61 min | 0.35% | C+ |
| All Delta Air Lines on MSP–BOS | 1,849 | 76.4% | 61 min | 1.19% | B |
| All carriers on MSP–BOS | 1,849 | 76.4% | 61 min | 1.19% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2558 quarter by quarter
DL 2558 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.1% on time and its weakest Oct–Dec 2025 at 64.8%, a swing of 12 points on roughly 94 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights—
- Oct–Dec 202588 flights64.8%
- Jan–Mar 202624 flights—
- Apr–Jun 202683 flights77.1%
- Jul–Sep 202657 flights64.9%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2558 ranged from 65.9% on Wednesday to 76.7% on Friday. With about 40 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2558 runs when it is late
DL 2558 often beats the schedule: 80 of 280 completed flights, 29%, arrived 15 minutes or more early. The 84 late arrivals split 24 under half an hour, 29 between 30 and 60 minutes, and 31 an hour or more.
- 15+ min early80 flights28.6%
- Within 15 min116 flights41.4%
- 15–29 min late24 flights8.6%
- 30–59 min late29 flights10.4%
- 1–2 hours late23 flights8.2%
- 2+ hours late8 flights2.9%
Scale runs 0% to 100%.
Share of 280 completed flights by arrival against schedule.
13 of 84 late departures made up the time and arrived on time, 15% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for DL 2558
The latest arrival of the period was on 24 September 2025, 4 hours 53 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 September 2025 | 4 hours 53 minutes | National Airspace System |
| 14 October 2025 | 4 hours 36 minutes | National Airspace System |
| 25 September 2025 | 3 hours 12 minutes | National Airspace System |
| 6 August 2026 | 2 hours 58 minutes | Carrier |
| 6 November 2025 | 2 hours 49 minutes | National Airspace System |
Delay causes
Why DL 2558 runs late
National Airspace System accounts for 65% of the 5,144 delay minutes carriers reported here, and the remaining four split what is left.
- 65%National Airspace System
- 25%Carrier
- 9%Late-arriving aircraft
65% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 3,367 minutes out of 5,144, against a national NAS share of 21%. The split is drawn from 5,144 delay minutes reported on DL 2558.
Cancellations are rare at 0.35%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,124 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 282 flights under DL 2558 in the data flew MSP to BOS. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 282 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking DL 2558
For a booking, DL 2558 is one of the weaker ways to fly MSP to BOS: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- MSP to BOS, every carrier and departure
- BOS to MSP, the return direction
- Delta Air Lines 2591 on the same route65.1%
- Delta Air Lines 2655 on the same route81.6%
- Delta Air Lines 2649 on the same route89.5%
- Delta Air Lines 2614 on the same route76.7%
- Minneapolis-St Paul International (MSP) delay statistics
- Boston Logan International (BOS) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- How often a connection fails at the major US hubs
A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.