Flight number record

B6 470

JetBlue Airways · Fort Lauderdale to Boston

Route: FLL → BOS
Departs: 20:00
Flights: 363
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s B6 470, check with JetBlue Airways.

B6 470 draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 363 flights, with a median arrival 5 minutes late.

The national on-time rate over the same period is 77.3%, so B6 470 runs 16 points behind the country as a whole. Across a thousand flights that is about 160 extra late arrivals.

On time

61.3%

Arrivals under 15 minutes late, of 354 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

2.48%

National rate is 1.89%

1 hour+ late

15.5%

National rate is 8.3%

These figures cover 363 flights between September 2025 and August 2026. Beyond the headline rate, 15.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Schedule

When B6 470 flies

B6 470 flies FLL to BOS without a single fixed slot. Its most common scheduled departure was 20:00, used on 56 of 363 flights, with 20:45 (50 flights) and 20:59 (38 flights) next.

Departs 20:0056 flights15.4%
Departs 20:4550 flights13.8%
Departs 20:5938 flights10.5%

Scale runs 0% to 100%.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 20:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and B6 470 runs 9 points worse at 61.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

B6 470 next to FLL to BOS

Every carrier on FLL to BOS combined arrived on time 66.8% of the time across 3,293 flights, so B6 470 is 6 points behind it. JetBlue flew 1,960 flights on the same city pair under all its flight numbers, including this one, and those ran 65.9% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 10 points.

B6 470 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 470thin sample	363	61.3%	65 min	2.48%	D
All JetBlue Airways on FLL–BOS	1,960	65.9%	76 min	3.37%	C−
All carriers on FLL–BOS	3,293	66.8%	77 min	3.67%	C−
JetBlue Airways, whole network	240,615	71.3%	77 min	3.56%	C−

Across the year

B6 470 quarter by quarter

B6 470 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.8% on time and its weakest Jul–Sep 2026 at 46.7%, a swing of 31 points on roughly 73 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 202530 flights60.0%
Oct–Dec 202591 flights60.4%
Jan–Mar 202690 flights55.4%
Apr–Jun 202690 flights77.8%
Jul–Sep 202662 flights46.7%

Scale runs 40% to 85%.

By weekday, B6 470 did best on Wednesday at 80.8% on time and worst on Sunday at 42.9%. Each day rests on about 52 flights, so a gap of 38 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late B6 470 runs when it is late

The 137 late arrivals split 42 under half an hour, 40 between 30 and 60 minutes, and 55 an hour or more.

15+ min early75 flights21.2%
Within 15 min142 flights40.1%
15–29 min late42 flights11.9%
30–59 min late40 flights11.3%
1–2 hours late41 flights11.6%
2+ hours late14 flights4.0%

Scale runs 0% to 100%.

Share of 354 completed flights by arrival against schedule.

31 of 161 late departures made up the time and arrived on time, 19% of them. Only 7 left on time and still arrived late.

The worst days

Worst days for B6 470

The latest arrival of the period was on 27 January 2026, 9 hours 8 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across January, March, July and November, with no single month standing out.

The latest arrivals of B6 470 in the period
Date	Arrived late by	Largest filed cause
27 January 2026	9 hours 8 minutes	Extreme weather
16 March 2026	4 hours 36 minutes	Late-arriving aircraft
3 July 2026	4 hours	Late-arriving aircraft
15 March 2026	3 hours 50 minutes	Carrier
8 November 2025	3 hours 26 minutes	Carrier

Delay causes

Why B6 470 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 8,923 reported delay minutes.

Carrier
40%
Late-arriving aircraft
36%
National Airspace System
11%
Extreme weather
11%
Security
1%

Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 8,923 delay minutes reported on B6 470.

Cancellations sit at 2.48% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

15.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

The 1,237 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.

Every one of the 363 flights under B6 470 in the data flew FLL to BOS. 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. 363 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 470

For a booking, B6 470 is a flight to put a long connection behind. 15.5% 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures