Flight number record

B6 1880

JetBlue Airways · Fort Lauderdale to Washington

Route: FLL → DCA
Departs: 16:45
Flights: 332
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1880, check with JetBlue Airways.

B6 1880 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 332 flights, with a median arrival 5 minutes late.

The national on-time rate over the same period is 77.6%, so B6 1880 runs 16 points behind the country as a whole. Across a thousand flights that is about 160 extra late arrivals.

On time

61.6%

Arrivals under 15 minutes late, of 323 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

2.11%

National rate is 1.81%

1 hour+ late

17.0%

National rate is 8.1%

These figures cover 332 flights between July 2025 and June 2026. Beyond the headline rate, 17.0% 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 B6 1880 flies

B6 1880 flies FLL to DCA without a single fixed slot. Its most common scheduled departure was 16:45, used on 77 of 332 flights, with 16:25 (40 flights) and 16:29 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:4577 flights23.2%
Departs 16:2540 flights12.0%
Departs 16:2934 flights10.2%

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 16:45 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and B6 1880 runs 11 points worse at 61.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 1880 next to FLL to DCA

Every carrier on FLL to DCA combined arrived on time 67.5% of the time across 2,303 flights, so B6 1880 is 6 points behind it. JetBlue flew 1,362 flights on the same city pair under all its flight numbers, including this one, and those ran 68.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 11 points.

B6 1880 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1880thin sample	332	61.6%	77 min	2.11%	D
All JetBlue Airways on FLL–DCA	1,362	68.6%	74 min	2.06%	C
All carriers on FLL–DCA	2,303	67.5%	75 min	1.87%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1880 quarter by quarter

B6 1880 did not run the same all year. Its best quarter was Oct–Dec 2025 at 67.8% on time and its weakest Jul–Sep 2025 at 56.3%, a swing of 12 points on roughly 83 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 202574 flights56.3%
Oct–Dec 202588 flights67.8%
Jan–Mar 202686 flights57.8%
Apr–Jun 202684 flights63.4%

Scale runs 50% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1880 did best on Wednesday at 78.4% on time and worst on Sunday at 52.0%. Each day rests on about 47 flights, so a gap of 26 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1880 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 9,552 reported delay minutes.

National Airspace System
38%
Late-arriving aircraft
36%
Carrier
24%
Extreme weather
2%

36% 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 9,552 reported delay minutes here, that single category outweighs weather by 15 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 9,552 delay minutes reported on B6 1880.

Cancellations sit at 2.11% against a national 1.81%, which is ordinary. Diversions add another 0.60%.

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. 17.0% 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 899 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 332 flights under B6 1880 in the data flew FLL to DCA. 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. 332 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 B6 1880

For a booking, B6 1880 is a flight to put a long connection behind. 17.0% 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 JetBlue Airways’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