Flight number record
B6 484
JetBlue Airways · Raleigh to Boston
- Route
- RDU → BOS
- Departs
- 09:23
- Flights
- 323
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 484, check with JetBlue Airways.
B6 484 earns a B−. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 323 flights, with a median arrival 13 minutes early.
Set against the rest of the country, B6 484's record is 7 points better than the US average of 77.3%. That gap is worth roughly 70 fewer late arrivals for every thousand flights.
Key figures
On time
84.3%
Arrivals under 15 minutes late, of 312 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
3.41%
National rate is 1.89%
1 hour+ late
5.8%
National rate is 8.3%
These figures cover 323 flights between September 2025 and August 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When B6 484 flies
B6 484 flies RDU to BOS without a single fixed slot. Its most common scheduled departure was 09:23, used on 55 of 323 flights, with 08:58 (33 flights) next.
- Departs 09:2355 flights17.0%
- Departs 08:5833 flights10.2%
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 09:23 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and B6 484 runs level with that at 84.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
B6 484 next to RDU to BOS
Every carrier on RDU to BOS combined arrived on time 78.5% of the time across 2,847 flights, so B6 484 is 6 points ahead of it. JetBlue flew 1,104 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 484thin sample | 323 | 84.3% | 69 min | 3.41% | B− |
| All JetBlue Airways on RDU–BOS | 1,104 | 76.7% | 75 min | 3.44% | B− |
| All carriers on RDU–BOS | 2,847 | 78.5% | 83 min | 2.95% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 484 quarter by quarter
B6 484 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.0% on time and its weakest Oct–Dec 2025 at 74.4%, a swing of 17 points on roughly 81 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 202526 flights—
- Oct–Dec 202586 flights74.4%
- Jan–Mar 202670 flights84.1%
- Apr–Jun 202679 flights91.0%
- Jul–Sep 202662 flights89.8%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, B6 484 did best on Tuesday at 91.3% on time and worst on Saturday at 78.4%. Each day rests on about 46 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 484 runs when it is late
B6 484 often beats the schedule: 146 of 312 completed flights, 47%, arrived 15 minutes or more early. The 49 late arrivals split 14 under half an hour, 17 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early146 flights46.8%
- Within 15 min117 flights37.5%
- 15–29 min late14 flights4.5%
- 30–59 min late17 flights5.4%
- 1–2 hours late10 flights3.2%
- 2+ hours late8 flights2.6%
Scale runs 0% to 100%.
Share of 312 completed flights by arrival against schedule.
10 of 51 late departures made up the time and arrived on time, 20% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for B6 484
The latest arrival of the period was on 14 May 2026, 5 hours 45 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 May 2026 | 5 hours 45 minutes | Late-arriving aircraft |
| 28 November 2025 | 4 hours 23 minutes | Late-arriving aircraft |
| 19 August 2026 | 3 hours 28 minutes | Late-arriving aircraft |
| 6 March 2026 | 2 hours 24 minutes | Late-arriving aircraft |
| 5 June 2026 | 2 hours 11 minutes | Carrier |
Delay causes
Why B6 484 runs late
Late-arriving aircraft accounts for 64% of the 3,361 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Late-arriving aircraft
- 22%Carrier
- 13%National Airspace System
64% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,361 reported delay minutes here, that single category outweighs weather by 64 to one. The split is drawn from 3,361 delay minutes reported on B6 484.
Cancellations run at 3.41%, against 1.89% nationally. That is about one flight in 30 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
5.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 612 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 323 flights under B6 484 in the data flew RDU 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. 323 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 484
For a booking, the cancellation rate is the figure to plan around on B6 484: 3.41% of its 323 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.
Related
Where to go next
- RDU to BOS, every carrier and departure
- BOS to RDU, the return direction
- Delta Air Lines 1054 on the same route92.5%
- Delta Air Lines 1022 on the same route88.0%
- Delta Air Lines 2393 on the same route71.7%
- Delta Air Lines 1033 on the same route74.5%
- Raleigh-Durham International (RDU) delay statistics
- Boston Logan International (BOS) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.