Flight number record
DL 2457
Delta Air Lines · Los Angeles to Portland
- Route
- LAX → PDX
- Departs
- 20:00
- Flights
- 303
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2457, check with Delta Air Lines.
DL 2457 lands a B+, 4 points better than the national rate of 77.3%. 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 rests on 303 flights, with a median arrival 11 minutes early.
Key figures
On time
80.9%
Arrivals under 15 minutes late, of 303 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
8.6%
National rate is 8.3%
These figures cover 303 flights between September 2025 and August 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2457 flies
DL 2457 flies LAX to PDX without a single fixed slot. Its most common scheduled departure was 20:00, used on 61 of 303 flights, with 19:55 (56 flights) and 20:29 (54 flights) next.
- Departs 20:0061 flights20.1%
- Departs 19:5556 flights18.5%
- Departs 20:2954 flights17.8%
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 20:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 2457 runs 11 points better at 80.9%. 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 2457 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 2457 is 6 points behind 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%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2457thin sample | 303 | 80.9% | 72 min | 0.00% | B+ |
| 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 2457 quarter by quarter
Quarter by quarter DL 2457 held fairly steady: 83.3% in Jul–Sep 2025, 80.5% in Oct–Dec 2025, 78.6% in Jan–Mar 2026, 80.5% in Apr–Jun 2026 and 82.3% in Jul–Sep 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights83.3%
- Oct–Dec 202582 flights80.5%
- Jan–Mar 202642 flights78.6%
- Apr–Jun 202687 flights80.5%
- Jul–Sep 202662 flights82.3%
Scale runs 70% to 90%.
By weekday, DL 2457 did best on Tuesday at 90.7% on time and worst on Friday at 67.4%. Each day rests on about 43 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2457 runs when it is late
DL 2457 often beats the schedule: 118 of 303 completed flights, 39%, arrived 15 minutes or more early. The 58 late arrivals split 21 under half an hour, 11 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early118 flights38.9%
- Within 15 min127 flights41.9%
- 15–29 min late21 flights6.9%
- 30–59 min late11 flights3.6%
- 1–2 hours late20 flights6.6%
- 2+ hours late6 flights2.0%
Scale runs 0% to 100%.
Share of 303 completed flights by arrival against schedule.
12 of 68 late departures made up the time and arrived on time, 18% of them. Only 2 left on time and still arrived late.
The worst days
Worst days for DL 2457
The latest arrival of the period was on 5 August 2026, 13 hours 49 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 |
|---|---|---|
| 5 August 2026 | 13 hours 49 minutes | Carrier |
| 14 May 2026 | 3 hours 55 minutes | Late-arriving aircraft |
| 2 January 2026 | 3 hours 49 minutes | Carrier |
| 20 March 2026 | 2 hours 41 minutes | Carrier |
| 5 April 2026 | 2 hours 9 minutes | Carrier |
Delay causes
Why DL 2457 runs late
Carrier accounts for 65% of the 4,177 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 33%Late-arriving aircraft
- 3%National Airspace System
The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,697 of the 4,177 delay minutes reported here. The split is drawn from 4,177 delay minutes reported on DL 2457.
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
8.6% 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 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.
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.
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
- Why the first flight of the morning is statistically safest
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.