Flight number record
DL 355
Delta Air Lines · Nashville to Los Angeles
- Route
- BNA → LAX
- Departs
- 15:02
- Flights
- 352
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 355, check with Delta Air Lines.
DL 355 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 roughly 35 minutes on average. That rests on 352 flights, with a median arrival 4 minutes early.
Set against the rest of the country, DL 355's record is 6 points better than the US average of 77.3%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.
Key figures
On time
82.9%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
36 min
Across delayed arrivals only, not all flights
Cancelled
1.70%
National rate is 1.89%
1 hour+ late
2.6%
National rate is 8.3%
These figures cover 352 flights between September 2025 and August 2026. The median arrival is 4 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 355 flies
DL 355 flies BNA to LAX without a single fixed slot. Its most common scheduled departure was 15:02, used on 84 of 352 flights, with 15:23 (56 flights) and 14:50 (44 flights) next.
- Departs 15:0284 flights23.9%
- Departs 15:2356 flights15.9%
- Departs 14:5044 flights12.5%
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 15:02 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 355 runs 11 points better at 82.9%. 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 355 next to BNA to LAX
Every carrier on BNA to LAX combined arrived on time 76.0% of the time across 2,332 flights, so DL 355 is 7 points ahead of it. Delta flew 911 flights on the same city pair under all its flight numbers, including this one, and those ran 84.1% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 355thin sample | 352 | 82.9% | 36 min | 1.70% | B |
| All Delta Air Lines on BNA–LAX | 911 | 84.1% | 60 min | 1.10% | B |
| All carriers on BNA–LAX | 2,332 | 76.0% | 58 min | 0.77% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 355 quarter by quarter
DL 355 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 71.0%, a swing of 26 points on roughly 70 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 flights96.7%
- Oct–Dec 202591 flights86.7%
- Jan–Mar 202678 flights93.2%
- Apr–Jun 202691 flights74.4%
- Jul–Sep 202662 flights71.0%
Scale runs 65% to 100%.
By weekday, DL 355 did best on Tuesday at 88.2% on time and worst on Sunday at 73.9%. Each day rests on about 50 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 355 runs when it is late
Most of the lateness is short. 35 of the 59 late arrivals were under half an hour behind, and 9 reached an hour or more.
- 15+ min early78 flights22.5%
- Within 15 min209 flights60.4%
- 15–29 min late35 flights10.1%
- 30–59 min late15 flights4.3%
- 1–2 hours late8 flights2.3%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 346 completed flights by arrival against schedule.
15 of 51 late departures made up the time and arrived on time, 29% of them. In the other direction, 23 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 LAX.
The worst days
Worst days for DL 355
The latest arrival of the period was on 6 February 2026, 3 hours 5 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 February 2026 | 3 hours 5 minutes | Late-arriving aircraft |
| 10 July 2026 | 1 hour 33 minutes | Late-arriving aircraft |
| 8 October 2025 | 1 hour 30 minutes | Late-arriving aircraft |
| 3 January 2026 | 1 hour 30 minutes | Late-arriving aircraft |
| 17 February 2026 | 1 hour 14 minutes | National Airspace System |
Delay causes
Why DL 355 runs late
Late-arriving aircraft accounts for 43% of the 2,132 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 30%National Airspace System
- 27%Carrier
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,132 reported delay minutes here, that single category outweighs weather by 43 to one. The split is drawn from 2,132 delay minutes reported on DL 355.
Cancellations sit at 1.70% 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 2.6% 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.
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 82.9% on time with 1.70% cancelled over 352 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BNA to LAX, every carrier and departure
- LAX to BNA, the return direction
- Delta Air Lines 891 on the same route90.1%
- Nashville International (BNA) delay statistics
- Los Angeles International (LAX) 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
- Why the first flight of the morning is statistically safest
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.