Flight number record

B6 1680

JetBlue Airways · Fort Lauderdale to Washington

Route: FLL → DCA
Departs: 13:40
Flights: 334
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1680, check with JetBlue Airways.

B6 1680 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 334 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so B6 1680 runs 9 points behind the country as a whole. Across a thousand flights that is about 91 extra late arrivals.

On time

68.5%

Arrivals under 15 minutes late, of 324 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

1.20%

National rate is 1.81%

1 hour+ late

11.1%

National rate is 8.1%

These figures cover 334 flights between July 2025 and June 2026. Beyond the headline rate, 11.1% 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 1680 flies

B6 1680 flies FLL to DCA without a single fixed slot. Its most common scheduled departure was 13:40, used on 64 of 334 flights, with 09:00 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:4064 flights19.2%
Departs 09:0037 flights11.1%

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 13:40 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 1680 runs 10 points worse at 68.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 1680 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 1680 is about level with 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 4 points.

B6 1680 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1680thin sample	334	68.5%	74 min	1.20%	C
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 1680 quarter by quarter

B6 1680 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.8% on time and its weakest Jul–Sep 2025 at 41.7%, a swing of 36 points on roughly 84 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 202564 flights41.7%
Oct–Dec 202589 flights73.6%
Jan–Mar 202690 flights72.4%
Apr–Jun 202691 flights77.8%

Scale runs 35% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1680 did best on Wednesday at 79.2% on time and worst on Monday at 55.3%. Each day rests on about 48 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1680 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 7,563 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.

Late-arriving aircraft
47%
Carrier
35%
National Airspace System
14%
Extreme weather
4%
Security
0%

47% 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 7,563 reported delay minutes here, that single category outweighs weather by 12 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 7,563 delay minutes reported on B6 1680.

Cancellations sit at 1.20% against a national 1.81%, which is ordinary. Diversions add another 1.80%.

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. 11.1% 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 334 flights under B6 1680 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. 334 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 1680

For a booking, read B6 1680 as 68.5% on time with 1.20% cancelled over 334 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 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