Flight number record

DL 2975

Delta Air Lines · Portland to Los Angeles

Route: PDX → LAX
Departs: 10:15
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2975, check with Delta Air Lines.

DL 2975 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 363 flights, with a median arrival 16 minutes early.

Set against the rest of the country, DL 2975's record is 13 points better than the US average of 77.6%. That gap is worth roughly 128 fewer late arrivals for every thousand flights.

On time

90.4%

Arrivals under 15 minutes late, of 354 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

2.48%

National rate is 1.81%

1 hour+ late

3.7%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. The median arrival is 16 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 2975 flies

DL 2975 flies PDX to LAX without a single fixed slot. Its most common scheduled departure was 10:15, used on 72 of 363 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 10:1572 flights19.8%

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 10:15 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2975 runs 6 points better at 90.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 2975 next to PDX to LAX

Every carrier on PDX to LAX combined arrived on time 87.4% of the time across 4,403 flights, so DL 2975 is 3 points ahead of it. Delta flew 1,689 flights on the same city pair under all its flight numbers, including this one, and those ran 90.9% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 9 points.

DL 2975 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2975thin sample	363	90.4%	74 min	2.48%	A
All Delta Air Lines on PDX–LAX	1,689	90.9%	108 min	0.89%	A+
All carriers on PDX–LAX	4,403	87.4%	79 min	0.89%	A+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2975 quarter by quarter

Quarter by quarter DL 2975 held fairly steady: 89.0% in Jul–Sep 2025, 93.3% in Oct–Dec 2025, 89.7% in Jan–Mar 2026 and 89.5% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights89.0%
Oct–Dec 202590 flights93.3%
Jan–Mar 202690 flights89.7%
Apr–Jun 202691 flights89.5%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2975 ranged from 85.1% on Sunday to 96.1% on Wednesday. With about 52 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 2975 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 51% of the 2,526 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
51%
Carrier
45%
National Airspace System
4%

51% 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 2,526 reported delay minutes here, that single category outweighs weather by 51 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 2,526 delay minutes reported on DL 2975.

Cancellations sit at 2.48% 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 3.7% 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.

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.

DL 2975 is not only a PDX to LAX flight. It also flew LAX to PDX (363 flights, 89.0% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 363 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.

Other routes flown as DL 2975
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
LAX to PDXthin sample	363	89.0%	54 min	2.75%	A

What to do with this

Booking DL 2975

For a booking, read DL 2975 as 90.4% on time with 2.48% cancelled over 363 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