Flight number record
DL 2459
Delta Air Lines · Los Angeles to Portland
- Route
- LAX → PDX
- Departs
- 16:30
- Flights
- 292
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2459, check with Delta Air Lines.
DL 2459 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 292 flights, with a median arrival 16 minutes early.
Set against the rest of the country, DL 2459's record is 9 points better than the US average of 77.3%. That gap is worth roughly 90 fewer late arrivals for every thousand flights.
Key figures
On time
86.3%
Arrivals under 15 minutes late, of 292 completed flights
Avg delay
110 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
7.2%
National rate is 8.3%
These figures cover 292 flights between September 2025 and August 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.
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Schedule
When DL 2459 flies
DL 2459 flies LAX to PDX without a single fixed slot. Its most common scheduled departure was 16:30, used on 66 of 292 flights, with 17:01 (59 flights) and 16:35 (45 flights) next.
- Departs 16:3066 flights22.6%
- Departs 17:0159 flights20.2%
- Departs 16:3545 flights15.4%
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 16:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2459 runs 14 points better at 86.3%. 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 2459 next to LAX to PDX
Every carrier on LAX to PDX combined arrived on time 86.8% of the time across 4,289 flights, so DL 2459 is about level with it. Delta flew 1,689 flights on the same city pair under all its flight numbers, including this one, and those ran 86.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2459thin sample | 292 | 86.3% | 110 min | 0.00% | A+ |
| All Delta Air Lines on LAX–PDX | 1,689 | 86.6% | 75 min | 0.83% | A+ |
| All carriers on LAX–PDX | 4,289 | 86.8% | 68 min | 0.61% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2459 quarter by quarter
Quarter by quarter DL 2459 held fairly steady: 84.8% in Oct–Dec 2025, 88.3% in Jan–Mar 2026, 84.6% in Apr–Jun 2026 and 85.4% in Jul–Sep 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 202517 flights—
- Oct–Dec 202579 flights84.8%
- Jan–Mar 202677 flights88.3%
- Apr–Jun 202678 flights84.6%
- Jul–Sep 202641 flights85.4%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2459 did best on Wednesday at 95.0% on time and worst on Friday at 74.5%. Each day rests on about 42 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2459 runs when it is late
DL 2459 often beats the schedule: 158 of 292 completed flights, 54%, arrived 15 minutes or more early. When DL 2459 is late it tends to be very late: 21 of its 40 late arrivals were an hour or more behind, and 8 were two hours or more.
- 15+ min early158 flights54.1%
- Within 15 min94 flights32.2%
- 15–29 min late9 flights3.1%
- 30–59 min late10 flights3.4%
- 1–2 hours late13 flights4.5%
- 2+ hours late8 flights2.7%
Scale runs 0% to 100%.
Share of 292 completed flights by arrival against schedule.
10 of 50 late departures made up the time and arrived on time, 20% of them. No flight that left on time arrived late.
The worst days
Worst days for DL 2459
The latest arrival of the period was on 13 February 2026, 19 hours 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 February 2026 | 19 hours 36 minutes | Carrier |
| 5 April 2026 | 5 hours 10 minutes | Carrier |
| 16 February 2026 | 4 hours 18 minutes | Carrier |
| 1 April 2026 | 3 hours 54 minutes | Carrier |
| 10 October 2025 | 3 hours 44 minutes | Carrier |
Delay causes
Why DL 2459 runs late
Carrier accounts for 88% of the 4,379 delay minutes carriers reported here, and the remaining four split what is left.
- 88%Carrier
- 10%Late-arriving aircraft
- 1%Extreme weather
- 1%National Airspace System
The largest share of delay minutes, 88%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,856 of the 4,379 delay minutes reported here. The split is drawn from 4,379 delay minutes reported on DL 2459.
Cancellations are rare at 0.00%, below the national 1.89% 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
7.2% 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 close to two hours, 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.
The same number turns up on one other city pair in the data, including PDX to LAX (238), but none flew often enough under DL 2459 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to PDX only.
One caution: this is a thin sample. 292 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 2459
For a booking, DL 2459 has one of the better records a US domestic flight can show: 86.3% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- LAX to PDX, every carrier and departure
- PDX to LAX, the return direction
- Delta Air Lines 2766 on the same route88.7%
- Delta Air Lines 2975 on the same route89.5%
- Alaska Airlines 1315 on the same route91.7%
- Delta Air Lines 2551 on the same route87.1%
- Alaska Airlines 1397 on the same route88.5%
- Alaska Airlines 668 on the same route94.5%
- Los Angeles International (LAX) delay statistics
- Portland International (PDX) 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
- How to read this site: grades, sample sizes, and honest caveats
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.