Flight number record

DL 699

Delta Air Lines · New York to Seattle

Route: JFK → SEA
Departs: 07:00
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 699, check with Delta Air Lines.

DL 699 sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land roughly 40 minutes behind schedule. That rests on 365 flights, with a median arrival 6 minutes early.

On time

75.1%

Arrivals under 15 minutes late, of 353 completed flights

Avg delay

39 min

Across delayed arrivals only, not all flights

Cancelled

2.47%

National rate is 1.81%

1 hour+ late

3.1%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 6 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 699 flies

DL 699 flies JFK to SEA without a single fixed slot. Its most common scheduled departure was 07:00, used on 146 of 365 flights, with 07:05 (100 flights) and 07:55 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00146 flights40.0%
Departs 07:05100 flights27.4%
Departs 07:5537 flights10.1%

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 699 runs 14 points worse at 75.1%. 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 699 next to JFK to SEA

Every carrier on JFK to SEA combined arrived on time 69.7% of the time across 2,906 flights, so DL 699 is 5 points ahead of it. Delta flew 1,338 flights on the same city pair under all its flight numbers, including this one, and those ran 73.2% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 7 points.

DL 699 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 699	365	75.1%	39 min	2.47%	B
All Delta Air Lines on JFK–SEA	1,338	73.2%	57 min	2.32%	C
All carriers on JFK–SEA	2,906	69.7%	61 min	2.58%	C
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 699 quarter by quarter

DL 699 did not run the same all year. Its best quarter was Jul–Sep 2025 at 89.1% on time and its weakest Jan–Mar 2026 at 63.1%, a swing of 26 points on roughly 91 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 flights89.1%
Oct–Dec 202592 flights67.8%
Jan–Mar 202690 flights63.1%
Apr–Jun 202691 flights78.9%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 699 ranged from 70.6% on Friday to 78.4% on Tuesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 699 runs late

One category carries most of the weight here. National Airspace System accounts for 60% of the 3,396 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.

National Airspace System
60%
Carrier
31%
Extreme weather
8%
Late-arriving aircraft
2%

60% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,021 minutes out of 3,396, against a national NAS share of 21%. The split is drawn from 3,396 delay minutes reported on DL 699.

Cancellations sit at 2.47% against a national 1.81%, which is ordinary. Diversions add another 0.82%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.1% 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.

At 2,422 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 365 flights under DL 699 in the data flew JFK 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 699

For a booking, read DL 699 as 75.1% on time with 2.47% cancelled over 365 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