Flight number record

DL 2156

Delta Air Lines · San Jose to Minneapolis

Route: SJC → MSP
Departs: 06:20
Flights: 347
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2156, check with Delta Air Lines.

DL 2156 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 347 flights, with a median arrival 16 minutes early.

Set against the rest of the country, DL 2156's record is 17 points better than the US average of 77.3%. That gap is worth roughly 169 fewer late arrivals for every thousand flights.

On time

94.2%

Arrivals under 15 minutes late, of 344 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

0.86%

National rate is 1.89%

1 hour+ late

2.3%

National rate is 8.3%

These figures cover 347 flights between September 2025 and August 2026. The median arrival is 16 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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Schedule

When DL 2156 flies

DL 2156 is scheduled to leave San Jose (SJC) at 06:20 local time and reach Minneapolis (MSP) at 12:03. That slot held for 285 of the 347 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 06:20285 flights82.1%

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 06:20 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2156 runs 5 points better at 94.2%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

DL 2156 next to SJC to MSP

Every carrier on SJC to MSP combined arrived on time 91.1% of the time across 511 flights, so DL 2156 is 3 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 13 points.

DL 2156 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2156thin sample	347	94.2%	97 min	0.86%	A+
All Delta Air Lines on SJC–MSP	511	91.1%	78 min	0.98%	A+
All carriers on SJC–MSP	511	91.1%	78 min	0.98%	A+
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 2156 quarter by quarter

Quarter by quarter DL 2156 held fairly steady: 100.0% in Jul–Sep 2025, 91.0% in Oct–Dec 2025, 90.9% in Jan–Mar 2026, 95.3% in Apr–Jun 2026 and 98.4% in Jul–Sep 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202530 flights100.0%
Oct–Dec 202591 flights91.0%
Jan–Mar 202678 flights90.9%
Apr–Jun 202686 flights95.3%
Jul–Sep 202662 flights98.4%

Scale runs 80% to 100%.

By weekday, DL 2156 ranged from 90.0% on Thursday to 100.0% on Wednesday. With about 50 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late DL 2156 runs when it is late

DL 2156 often beats the schedule: 184 of 344 completed flights, 53%, arrived 15 minutes or more early. The 20 late arrivals split 4 under half an hour, 8 between 30 and 60 minutes, and 8 an hour or more.

15+ min early184 flights53.5%
Within 15 min140 flights40.7%
15–29 min late4 flights1.2%
30–59 min late8 flights2.3%
1–2 hours late1 flights0.3%
2+ hours late7 flights2.0%

Scale runs 0% to 100%.

Share of 344 completed flights by arrival against schedule.

A late pushback is often recovered here: of 29 departures that left 15 minutes late or more, 12 still arrived on time. Only 3 left on time and still arrived late.

The worst days

Worst days for DL 2156

The latest arrival of the period was on 21 December 2025, 9 hours 6 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.

The latest arrivals of DL 2156 in the period
Date	Arrived late by	Largest filed cause
21 December 2025	9 hours 6 minutes	Carrier
18 July 2026	2 hours 57 minutes	Carrier
16 April 2026	2 hours 44 minutes	Carrier
13 March 2026	2 hours 39 minutes	Carrier
15 December 2025	2 hours 19 minutes	Late-arriving aircraft

Delay causes

Why DL 2156 runs late

Carrier accounts for 75% of the 1,931 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
75%
Late-arriving aircraft
21%
National Airspace System
5%

The largest share of delay minutes, 75%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,439 of the 1,931 delay minutes reported here. The split is drawn from 1,931 delay minutes reported on DL 2156.

Cancellations are rare at 0.86%, 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

Badly late arrivals are rare here: only 2.3% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

At 1,575 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 347 flights under DL 2156 in the data flew SJC to MSP. 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. 347 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 2156

For a booking, DL 2156 has one of the better records a US domestic flight can show: 94.2% on time and 0.86% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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 22 October 2026; recomputed monthly. How this data is collected.

Key figures