Flight number record
DL 1673
Delta Air Lines · Newark to Atlanta
- Route
- EWR → ATL
- Departs
- 07:00
- Flights
- 343
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1673, check with Delta Air Lines.
DL 1673 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 10 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 343 flights, with a median arrival 10 minutes early.
Set against the rest of the country, DL 1673's record is 10 points better than the US average of 77.6%. That gap is worth roughly 101 fewer late arrivals for every thousand flights.
Key figures
On time
87.7%
Arrivals under 15 minutes late, of 332 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
2.92%
National rate is 1.81%
1 hour+ late
4.5%
National rate is 8.1%
These figures cover 343 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 1673 flies
DL 1673 flies EWR to ATL without a single fixed slot. Its most common scheduled departure was 07:00, used on 156 of 343 flights, with 07:05 (99 flights) and 07:10 (57 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 07:00156 flights45.5%
- Departs 07:0599 flights28.9%
- Departs 07:1057 flights16.6%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1673 runs level with that at 87.7%. 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 1673 next to EWR to ATL
Every carrier on EWR to ATL combined arrived on time 77.6% of the time across 6,290 flights, so DL 1673 is 10 points ahead of it. Delta flew 3,055 flights on the same city pair under all its flight numbers, including this one, and those ran 80.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1673thin sample | 343 | 87.7% | 73 min | 2.92% | A |
| All Delta Air Lines on EWR–ATL | 3,055 | 80.1% | 88 min | 3.40% | B− |
| All carriers on EWR–ATL | 6,290 | 77.6% | 84 min | 3.39% | B− |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1673 quarter by quarter
DL 1673 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.3% on time and its weakest Oct–Dec 2025 at 82.1%, a swing of 12 points on roughly 86 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202592 flights90.0%
- Oct–Dec 202580 flights82.1%
- Jan–Mar 202682 flights83.1%
- Apr–Jun 202689 flights94.3%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1673 did best on Friday at 95.9% on time and worst on Sunday at 78.7%. Each day rests on about 49 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 1673 runs late
One category carries most of the weight here. Carrier accounts for 43% of the 2,986 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.
- 43%Carrier
- 21%Late-arriving aircraft
- 21%National Airspace System
- 15%Extreme weather
Extreme weather accounts for 15% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.5 times the usual weather exposure. The split is drawn from 2,986 delay minutes reported on DL 1673.
Cancellations run at 2.92%, against 1.81% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.5% 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 746 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 343 flights under DL 1673 in the data flew EWR to ATL. 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. 343 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 1673
For a booking, the cancellation rate is the figure to plan around on DL 1673: 2.92% of its 343 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- EWR to ATL, every carrier and departure
- ATL to EWR, the return direction
- Delta Air Lines 2353 on the same route83.9%
- Frontier Airlines 4601 on the same route70.5%
- Delta Air Lines 2397 on the same route80.4%
- Frontier Airlines 1157 on the same route69.8%
- Delta Air Lines 2325 on the same route83.7%
- Delta Air Lines 2365 on the same route83.2%
- Newark Liberty International (EWR) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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
- What a cancellation rate actually tells you (and what it hides)
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.