Flight number record

DL 355

Delta Air Lines · Nashville to Los Angeles

Route: BNA → LAX
Departs: 14:50
Flights: 352
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 355, check with Delta Air Lines.

DL 355 lands a B, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 45 minutes on average. That is a workable record, not a spotless one. That rests on 352 flights, with a median arrival 5 minutes early.

Set against the rest of the country, DL 355's record is 5 points better than the US average of 77.6%. That gap is worth roughly 51 fewer late arrivals for every thousand flights.

On time

82.7%

Arrivals under 15 minutes late, of 346 completed flights

Avg delay

44 min

Across delayed arrivals only, not all flights

Cancelled

1.70%

National rate is 1.81%

1 hour+ late

3.5%

National rate is 8.1%

These figures cover 352 flights between July 2025 and June 2026. The median arrival is 5 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.

Schedule

When DL 355 flies

DL 355 flies BNA to LAX without a single fixed slot. Its most common scheduled departure was 14:50, used on 61 of 352 flights, with 15:02 (60 flights) and 15:23 (56 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:5061 flights17.3%
Departs 15:0260 flights17.0%
Departs 15:2356 flights15.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 14:50 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 355 runs 10 points better at 82.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 355 next to BNA to LAX

Every carrier on BNA to LAX combined arrived on time 77.0% of the time across 2,317 flights, so DL 355 is 6 points ahead of it. Delta flew 909 flights on the same city pair under all its flight numbers, including this one, and those ran 85.5% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 355 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 355thin sample	352	82.7%	44 min	1.70%	B
All Delta Air Lines on BNA–LAX	909	85.5%	61 min	1.32%	A
All carriers on BNA–LAX	2,317	77.0%	61 min	0.95%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 355 quarter by quarter

DL 355 did not run the same all year. Its best quarter was Jan–Mar 2026 at 93.2% on time and its weakest Apr–Jun 2026 at 74.4%, a swing of 19 points on roughly 88 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 202592 flights78.3%
Oct–Dec 202591 flights86.7%
Jan–Mar 202678 flights93.2%
Apr–Jun 202691 flights74.4%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 355 ranged from 76.1% on Sunday to 86.5% 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.

Delay causes

Why DL 355 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 50% of the 2,637 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
50%
Carrier
25%
National Airspace System
24%
Extreme weather
1%

50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,637 reported delay minutes here, that single category outweighs weather by 39 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,637 delay minutes reported on DL 355.

Cancellations sit at 1.70% against a national 1.81%, 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 3.5% land an hour or more behind schedule, against 8.1% 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.

Every one of the 352 flights under DL 355 in the data flew BNA to LAX. 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. 352 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 355

For a booking, read DL 355 as 82.7% on time with 1.70% cancelled over 352 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures