Flight number record

DL 2854

Delta Air Lines · Seattle to Los Angeles

Route: SEA → LAX
Departs: 19:59
Flights: 320
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2854, check with Delta Air Lines.

DL 2854 lands a B+, 4 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 320 flights, with a median arrival 9 minutes early.

On time

81.1%

Arrivals under 15 minutes late, of 317 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

0.62%

National rate is 1.81%

1 hour+ late

6.0%

National rate is 8.1%

These figures cover 320 flights between July 2025 and June 2026. The median arrival is 9 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 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 (81 flights) and 20:10 (52 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:5986 flights26.9%
Departs 19:5581 flights25.3%
Departs 20:1052 flights16.3%

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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 2854 runs 13 points better at 81.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 2854 next to SEA to LAX

Every carrier on SEA to LAX combined arrived on time 83.4% of the time across 7,428 flights, so DL 2854 is 2 points behind it. Delta flew 2,225 flights on the same city pair under all its flight numbers, including this one, and those ran 84.5% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 2854 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2854thin sample	320	81.1%	74 min	0.62%	B+
All Delta Air Lines on SEA–LAX	2,225	84.5%	59 min	0.67%	B+
All carriers on SEA–LAX	7,428	83.4%	59 min	0.92%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2854 quarter by quarter

Quarter by quarter DL 2854 held fairly steady: 85.9% in Jul–Sep 2025, 77.9% in Oct–Dec 2025, 84.1% in Jan–Mar 2026 and 76.3% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights85.9%
Oct–Dec 202586 flights77.9%
Jan–Mar 202666 flights84.1%
Apr–Jun 202676 flights76.3%

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

By weekday, DL 2854 did best on Tuesday at 94.6% on time and worst on Sunday at 73.5%. Each day rests on about 46 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2854 runs late

One category carries most of the weight here. Carrier accounts for 52% of the 4,465 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.

Carrier
52%
Late-arriving aircraft
33%
National Airspace System
12%
Extreme weather
3%

The largest share of delay minutes, 52%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,305 of the 4,465 delay minutes reported here. The split is drawn from 4,465 delay minutes reported on DL 2854.

Cancellations are rare at 0.62%, below the national 1.81% 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

6.0% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

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, read DL 2854 as 81.1% on time with 0.62% cancelled over 320 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