Flight number record

DL 2160

Delta Air Lines · Boston to West Palm Beach

Route: BOS → PBI
Departs: 15:35
Flights: 341
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2160, check with Delta Air Lines.

DL 2160 draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 341 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so DL 2160 runs 15 points behind the country as a whole. Across a thousand flights that is about 151 extra late arrivals.

On time

62.5%

Arrivals under 15 minutes late, of 333 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

2.05%

National rate is 1.81%

1 hour+ late

14.7%

National rate is 8.1%

These figures cover 341 flights between July 2025 and June 2026. Beyond the headline rate, 14.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When DL 2160 flies

DL 2160 flies BOS to PBI without a single fixed slot. Its most common scheduled departure was 15:35, used on 91 of 341 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:3591 flights26.7%

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 15:35 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2160 runs 10 points worse at 62.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2160 next to BOS to PBI

Every carrier on BOS to PBI combined arrived on time 65.7% of the time across 2,183 flights, so DL 2160 is 3 points behind it. Delta flew 591 flights on the same city pair under all its flight numbers, including this one, and those ran 70.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 19 points.

DL 2160 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2160thin sample	341	62.5%	72 min	2.05%	D
All Delta Air Lines on BOS–PBI	591	70.7%	74 min	2.37%	C
All carriers on BOS–PBI	2,183	65.7%	72 min	3.02%	C−
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2160 quarter by quarter

DL 2160 did not run the same all year. Its best quarter was Apr–Jun 2026 at 78.0% on time and its weakest Oct–Dec 2025 at 48.3%, a swing of 30 points on roughly 85 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 202591 flights65.6%
Oct–Dec 202588 flights48.3%
Jan–Mar 202671 flights55.4%
Apr–Jun 202691 flights78.0%

Scale runs 40% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2160 did best on Saturday at 70.0% on time and worst on Sunday at 58.0%. Each day rests on about 49 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2160 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 9,055 reported delay minutes.

Late-arriving aircraft
40%
National Airspace System
31%
Carrier
27%
Security
1%
Extreme weather
0%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 9,055 reported delay minutes here, that single category outweighs weather by 40 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 9,055 delay minutes reported on DL 2160.

Cancellations sit at 2.05% against a national 1.81%, which is ordinary. Diversions add another 0.29%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 1,197 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.

The same number turns up on one other city pair in the data, including PBI to BOS (159), but none flew often enough under DL 2160 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BOS to PBI only.

One caution: this is a thin sample. 341 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 2160

For a booking, DL 2160 is a flight to put a long connection behind. 14.7% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

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