Flight number record
DL 2606
Delta Air Lines · Los Angeles to Seattle
- Route
- LAX → SEA
- Departs
- 14:00
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2606, check with Delta Air Lines.
DL 2606 lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, DL 2606's record is 6 points better than the US average of 77.3%. That gap is worth roughly 58 fewer late arrivals for every thousand flights.
Key figures
On time
83.1%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
0.55%
National rate is 1.89%
1 hour+ late
8.0%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 8.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2606 flies
DL 2606 flies LAX to SEA without a single fixed slot. Its most common scheduled departure was 14:00, used on 123 of 365 flights, with 15:35 (60 flights) and 14:10 (47 flights) next.
- Departs 14:00123 flights33.7%
- Departs 15:3560 flights16.4%
- Departs 14:1047 flights12.9%
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 14:00 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2606 runs 11 points better at 83.1%. 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 2606 next to LAX to SEA
Every carrier on LAX to SEA combined arrived on time 85.0% of the time across 7,534 flights, so DL 2606 is 2 points behind it. Delta flew 2,228 flights on the same city pair under all its flight numbers, including this one, and those ran 85.2% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2606 | 365 | 83.1% | 76 min | 0.55% | B+ |
| All Delta Air Lines on LAX–SEA | 2,228 | 85.2% | 71 min | 0.67% | A+ |
| All carriers on LAX–SEA | 7,534 | 85.0% | 62 min | 0.84% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2606 quarter by quarter
Quarter by quarter DL 2606 held fairly steady: 86.7% in Jul–Sep 2025, 85.4% in Oct–Dec 2025, 81.1% in Jan–Mar 2026, 83.5% in Apr–Jun 2026 and 80.6% in Jul–Sep 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights86.7%
- Oct–Dec 202592 flights85.4%
- Jan–Mar 202690 flights81.1%
- Apr–Jun 202691 flights83.5%
- Jul–Sep 202662 flights80.6%
Scale runs 70% to 90%.
By weekday, DL 2606 did best on Tuesday at 94.2% on time and worst on Sunday at 68.6%. Each day rests on about 52 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2606 runs when it is late
DL 2606 often beats the schedule: 143 of 362 completed flights, 40%, arrived 15 minutes or more early. The 61 late arrivals split 21 under half an hour, 11 between 30 and 60 minutes, and 29 an hour or more.
- 15+ min early143 flights39.5%
- Within 15 min158 flights43.6%
- 15–29 min late21 flights5.8%
- 30–59 min late11 flights3.0%
- 1–2 hours late19 flights5.2%
- 2+ hours late10 flights2.8%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
20 of 77 late departures made up the time and arrived on time, 26% of them. Only 4 left on time and still arrived late.
The worst days
Worst days for DL 2606
The latest arrival of the period was on 12 June 2026, 5 hours 22 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 June 2026 | 5 hours 22 minutes | Late-arriving aircraft |
| 27 March 2026 | 4 hours 12 minutes | Late-arriving aircraft |
| 30 October 2025 | 3 hours 54 minutes | Carrier |
| 4 January 2026 | 3 hours 50 minutes | Late-arriving aircraft |
| 6 July 2026 | 3 hours 44 minutes | Carrier |
Delay causes
Why DL 2606 runs late
Carrier accounts for 59% of the 4,611 delay minutes carriers reported here, and the remaining four split what is left.
- 59%Carrier
- 35%Late-arriving aircraft
- 6%National Airspace System
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,611 reported delay minutes here, that single category outweighs weather by 35 to one. The split is drawn from 4,611 delay minutes reported on DL 2606.
Cancellations are rare at 0.55%, below the national 1.89% 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
8.0% 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 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.
Every one of the 365 flights under DL 2606 in the data flew LAX to SEA. 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. 365 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 2606
For a booking, read DL 2606 as 83.1% on time with 0.55% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to SEA, every carrier and departure
- SEA to LAX, the return direction
- Delta Air Lines 2980 on the same route92.2%
- Delta Air Lines 2640 on the same route81.8%
- Delta Air Lines 1714 on the same route91.7%
- Delta Air Lines 1045 on the same route86.9%
- Alaska Airlines 1305 on the same route73.3%
- Frontier Airlines 1177 on the same route83.6%
- Los Angeles International (LAX) delay statistics
- Seattle-Tacoma International (SEA) 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.