Flight number record

DL 858

Delta Air Lines · Los Angeles to Nashville

Route: LAX → BNA
Departs: 17:59
Flights: 295
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 858, check with Delta Air Lines.

DL 858 lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 295 flights, with a median arrival 7 minutes early.

Set against the rest of the country, DL 858's record is 6 points better than the US average of 77.3%. That gap is worth roughly 55 fewer late arrivals for every thousand flights.

On time

82.8%

Arrivals under 15 minutes late, of 290 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

1.69%

National rate is 1.89%

1 hour+ late

3.8%

National rate is 8.3%

These figures cover 295 flights between September 2025 and August 2026. The median arrival is 7 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 858 flies

DL 858 flies LAX to BNA without a single fixed slot. Its most common scheduled departure was 17:59, used on 50 of 295 flights, with 18:31 (43 flights) and 15:00 (40 flights) next.

Departs 17:5950 flights16.9%
Departs 18:3143 flights14.6%
Departs 15:0040 flights13.6%

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 17:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 858 runs 15 points better at 82.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

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Against the route

DL 858 next to LAX to BNA

Every carrier on LAX to BNA combined arrived on time 79.8% of the time across 2,322 flights, so DL 858 is 3 points ahead of it. Delta flew 911 flights on the same city pair under all its flight numbers, including this one, and those ran 85.0% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 2 points.

DL 858 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 858thin sample	295	82.8%	67 min	1.69%	B
All Delta Air Lines on LAX–BNA	911	85.0%	61 min	1.32%	A
All carriers on LAX–BNA	2,322	79.8%	61 min	0.90%	B+
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 858 quarter by quarter

Quarter by quarter DL 858 held fairly steady: 80.4% in Oct–Dec 2025, 84.0% in Jan–Mar 2026, 80.7% in Apr–Jun 2026 and 78.3% in Jul–Sep 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202529 flights—
Oct–Dec 202546 flights80.4%
Jan–Mar 202686 flights84.0%
Apr–Jun 202688 flights80.7%
Jul–Sep 202646 flights78.3%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 858 did best on Tuesday at 94.1% on time and worst on Monday at 72.3%. Each day rests on about 42 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 858 runs when it is late

Most of the lateness is short. 25 of the 50 late arrivals were under half an hour behind, and 11 reached an hour or more.

15+ min early72 flights24.8%
Within 15 min168 flights57.9%
15–29 min late25 flights8.6%
30–59 min late14 flights4.8%
1–2 hours late6 flights2.1%
2+ hours late5 flights1.7%

Scale runs 0% to 100%.

Share of 290 completed flights by arrival against schedule.

8 of 42 late departures made up the time and arrived on time, 19% of them. In the other direction, 16 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BNA.

The worst days

Worst days for DL 858

The latest arrival of the period was on 11 May 2026, 15 hours 3 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.

The latest arrivals of DL 858 in the period
Date	Arrived late by	Largest filed cause
11 May 2026	15 hours 3 minutes	Carrier
16 March 2026	5 hours 18 minutes	Carrier
30 April 2026	3 hours 37 minutes	Carrier
19 December 2025	2 hours 57 minutes	Carrier
14 November 2025	2 hours 10 minutes	Carrier

Delay causes

Why DL 858 runs late

Carrier accounts for 73% of the 3,352 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
73%
National Airspace System
17%
Late-arriving aircraft
10%

The largest share of delay minutes, 73%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,447 of the 3,352 delay minutes reported here. The split is drawn from 3,352 delay minutes reported on DL 858.

Cancellations sit at 1.69% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.8% 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 1,798 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.

The same number turns up on one other city pair in the data, including MSP to SFO (16), but none flew often enough under DL 858 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to BNA only.

One caution: this is a thin sample. 295 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 858

For a booking, read DL 858 as 82.8% on time with 1.69% cancelled over 295 flights. Those are rates from the past twelve months, not a forecast for any particular 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