Flight number record
DL 2854
Delta Air Lines · Seattle to Los Angeles
- Route
- SEA → LAX
- Departs
- 19:59
- Flights
- 320
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2854, check with Delta Air Lines.
DL 2854 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 320 flights, with a median arrival 6 minutes early.
Key figures
On time
74.8%
Arrivals under 15 minutes late, of 317 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
0.62%
National rate is 1.89%
1 hour+ late
6.9%
National rate is 8.3%
These figures cover 320 flights between September 2025 and August 2026. The median arrival is 6 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 2854 flies
DL 2854 flies SEA to LAX without a single fixed slot. Its most common scheduled departure was 19:59, used on 86 of 320 flights, with 19:55 (85 flights) and 20:25 (58 flights) next.
- Departs 19:5986 flights26.9%
- Departs 19:5585 flights26.6%
- Departs 20:2558 flights18.1%
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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 2854 runs 7 points better at 74.8%. 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 2854 next to SEA to LAX
Every carrier on SEA to LAX combined arrived on time 82.0% of the time across 7,536 flights, so DL 2854 is 7 points behind it. Delta flew 2,229 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2854thin sample | 320 | 74.8% | 72 min | 0.62% | C+ |
| All Delta Air Lines on SEA–LAX | 2,229 | 81.6% | 59 min | 0.58% | B+ |
| All carriers on SEA–LAX | 7,536 | 82.0% | 59 min | 0.81% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2854 quarter by quarter
DL 2854 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.1% on time and its weakest Jul–Sep 2026 at 54.8%, a swing of 29 points on roughly 64 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 flights83.3%
- Oct–Dec 202586 flights77.9%
- Jan–Mar 202666 flights84.1%
- Apr–Jun 202676 flights76.3%
- Jul–Sep 202662 flights54.8%
Scale runs 45% to 90%.
By weekday, DL 2854 did best on Tuesday at 91.7% on time and worst on Sunday at 67.3%. Each day rests on about 46 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2854 runs when it is late
DL 2854 often beats the schedule: 97 of 317 completed flights, 31%, arrived 15 minutes or more early. The 80 late arrivals split 31 under half an hour, 27 between 30 and 60 minutes, and 22 an hour or more.
- 15+ min early97 flights30.6%
- Within 15 min140 flights44.2%
- 15–29 min late31 flights9.8%
- 30–59 min late27 flights8.5%
- 1–2 hours late10 flights3.2%
- 2+ hours late12 flights3.8%
Scale runs 0% to 100%.
Share of 317 completed flights by arrival against schedule.
11 of 70 late departures made up the time and arrived on time, 16% of them. In the other direction, 21 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 2854
The latest arrival of the period was on 29 May 2026, 14 hours 20 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.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 May 2026 | 14 hours 20 minutes | Carrier |
| 3 August 2026 | 12 hours 56 minutes | Carrier |
| 14 January 2026 | 3 hours 29 minutes | Carrier |
| 10 October 2025 | 3 hours 8 minutes | Carrier |
| 22 December 2025 | 2 hours 49 minutes | Late-arriving aircraft |
Delay causes
Why DL 2854 runs late
Carrier accounts for 60% of the 5,777 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Carrier
- 24%Late-arriving aircraft
- 13%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 60%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,477 of the 5,777 delay minutes reported here. The split is drawn from 5,777 delay minutes reported on DL 2854.
Cancellations are rare at 0.62%, 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
6.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 954 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 320 flights under DL 2854 in the data flew SEA 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. 320 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 2854
For a booking, DL 2854 is one of the weaker ways to fly SEA to LAX: 7 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
- SEA to LAX, every carrier and departure
- LAX to SEA, the return direction
- Delta Air Lines 2769 on the same route83.8%
- Delta Air Lines 2861 on the same route74.2%
- Delta Air Lines 1628 on the same route90.6%
- Delta Air Lines 2830 on the same route83.8%
- Alaska Airlines 505 on the same route82.8%
- Delta Air Lines 2914 on the same route84.0%
- Seattle-Tacoma International (SEA) 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
- The best time of day to fly, according to 7.05 million flight records
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.