Flight number record

DL 2457

Delta Air Lines · Los Angeles to Portland

Route: LAX → PDX
Departs: 19:55
Flights: 303
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2457, check with Delta Air Lines.

DL 2457 lands a B+, 3 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 about an hour on average. That is a workable record, not a spotless one. That rests on 303 flights, with a median arrival 10 minutes early.

On time

80.5%

Arrivals under 15 minutes late, of 303 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

7.9%

National rate is 8.1%

These figures cover 303 flights between July 2025 and June 2026. The median arrival is 10 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 2457 flies

DL 2457 flies LAX to PDX without a single fixed slot. Its most common scheduled departure was 19:55, used on 56 of 303 flights, with 20:20 (54 flights) and 20:29 (54 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:5556 flights18.5%
Departs 20:2054 flights17.8%
Departs 20:2954 flights17.8%

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 19:55 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 2457 runs 12 points better at 80.5%. 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 2457 next to LAX to PDX

Every carrier on LAX to PDX combined arrived on time 86.4% of the time across 4,406 flights, so DL 2457 is 6 points behind it. Delta flew 1,690 flights on the same city pair under all its flight numbers, including this one, and those ran 86.2% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 2457 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2457thin sample	303	80.5%	58 min	0.00%	B+
All Delta Air Lines on LAX–PDX	1,690	86.2%	74 min	0.89%	A+
All carriers on LAX–PDX	4,406	86.4%	68 min	0.84%	A+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2457 quarter by quarter

Quarter by quarter DL 2457 held fairly steady: 81.5% in Jul–Sep 2025, 80.5% in Oct–Dec 2025, 78.6% in Jan–Mar 2026 and 80.5% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights81.5%
Oct–Dec 202582 flights80.5%
Jan–Mar 202642 flights78.6%
Apr–Jun 202687 flights80.5%

Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2457 did best on Tuesday at 90.9% on time and worst on Friday at 69.6%. Each day rests on about 43 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2457 runs late

One category carries most of the weight here. Carrier accounts for 63% of the 3,403 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
63%
Late-arriving aircraft
34%
National Airspace System
3%

The largest share of delay minutes, 63%, 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 2,155 of the 3,403 delay minutes reported here. The split is drawn from 3,403 delay minutes reported on DL 2457.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

7.9% 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 about an hour, which a normal layover absorbs.

The 833 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 303 flights under DL 2457 in the data flew LAX to PDX. 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. 303 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 2457

For a booking, DL 2457 is one of the weaker ways to fly LAX to PDX: 6 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.

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