Flight number record

B6 1955

JetBlue Airways · Boston to Washington

Route: BOS → DCA
Departs: 18:15
Flights: 287
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1955, check with JetBlue Airways.

B6 1955 earns an F−, which is as low as this site's scale goes for a reason. Only 54.3% of flights arrive inside the 15-minute window, 23 points worse than the national rate of 77.6%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 287 flights, with a median arrival 9 minutes late.

The national on-time rate over the same period is 77.6%, so B6 1955 runs 23 points behind the country as a whole. Across a thousand flights that is about 233 extra late arrivals.

On time

54.3%

Arrivals under 15 minutes late, of 276 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

3.83%

National rate is 1.81%

1 hour+ late

22.1%

National rate is 8.1%

These figures cover 287 flights between July 2025 and June 2026. Beyond the headline rate, 22.1% 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 1955 flies

B6 1955 flies BOS to DCA without a single fixed slot. Its most common scheduled departure was 18:15, used on 58 of 287 flights, with 12:40 (36 flights) and 13:59 (31 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:1558 flights20.2%
Departs 12:4036 flights12.5%
Departs 13:5931 flights10.8%

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 18:15 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and B6 1955 runs 14 points worse at 54.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

B6 1955 next to BOS to DCA

Every carrier on BOS to DCA combined arrived on time 74.0% of the time across 9,082 flights, so B6 1955 is 20 points behind it. JetBlue flew 2,634 flights on the same city pair under all its flight numbers, including this one, and those ran 68.8% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 18 points.

B6 1955 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1955thin sample	287	54.3%	80 min	3.83%	F−
All JetBlue Airways on BOS–DCA	2,634	68.8%	72 min	3.80%	C−
All carriers on BOS–DCA	9,082	74.0%	72 min	3.88%	C−
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1955 quarter by quarter

B6 1955 did not run the same all year. Its best quarter was Oct–Dec 2025 at 81.1% on time and its weakest Jul–Sep 2025 at 46.6%, a swing of 34 points on roughly 72 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 flights46.6%
Oct–Dec 202537 flights81.1%
Jan–Mar 202685 flights54.3%
Apr–Jun 202673 flights50.0%

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

By weekday, B6 1955 did best on Saturday at 67.7% on time and worst on Thursday at 42.9%. Each day rests on about 41 flights, so a gap of 25 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1955 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 10,000 reported delay minutes.

Late-arriving aircraft
41%
National Airspace System
37%
Carrier
17%
Extreme weather
4%

41% 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 10,000 reported delay minutes here, that single category outweighs weather by 10 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 10,062 delay minutes reported on B6 1955.

Cancellations run at 3.83%, against 1.81% nationally. That is about one flight in 25 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 22.1% 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.

Every one of the 287 flights under B6 1955 in the data flew BOS 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. 287 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 1955

For a booking, the cancellation rate is the figure to plan around on B6 1955: 3.83% of its 287 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.

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