Flight number record
B6 450
JetBlue Airways · Savannah to Boston
- Route
- SAV → BOS
- Departs
- 16:10
- Flights
- 256
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 450, check with JetBlue Airways.
B6 450 draws a D−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 256 flights, with a median arrival 3 minutes early.
The national on-time rate over the same period is 77.3%, so B6 450 runs 13 points behind the country as a whole. Across a thousand flights that is about 127 extra late arrivals.
Key figures
On time
64.6%
Arrivals under 15 minutes late, of 246 completed flights
Avg delay
90 min
Across delayed arrivals only, not all flights
Cancelled
3.91%
National rate is 1.89%
1 hour+ late
15.0%
National rate is 8.3%
These figures cover 256 flights between September 2025 and August 2026. Beyond the headline rate, 15.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 450 flies
B6 450 flies SAV to BOS without a single fixed slot. Its most common scheduled departure was 16:10, used on 40 of 256 flights, with 13:10 (27 flights) next.
- Departs 16:1040 flights15.6%
- Departs 13:1027 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 16:10 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and B6 450 runs 7 points worse at 64.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
B6 450 next to SAV to BOS
Every carrier on SAV to BOS combined arrived on time 68.5% of the time across 1,023 flights, so B6 450 is 4 points behind it. JetBlue flew 581 flights on the same city pair under all its flight numbers, including this one, and those ran 70.1% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 450thin sample | 256 | 64.6% | 90 min | 3.91% | D− |
| All JetBlue Airways on SAV–BOS | 581 | 70.1% | 84 min | 3.27% | C− |
| All carriers on SAV–BOS | 1,023 | 68.5% | 82 min | 3.42% | C− |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 450 quarter by quarter
B6 450 did not run the same all year. Its best quarter was Apr–Jun 2026 at 79.6% on time and its weakest Oct–Dec 2025 at 58.9%, a swing of 21 points on roughly 85 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 202528 flights—
- Oct–Dec 202592 flights58.9%
- Jan–Mar 202686 flights75.0%
- Apr–Jun 202650 flights79.6%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, B6 450 did best on Saturday at 77.1% on time and worst on Sunday at 52.9%. Each day rests on about 37 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 450 runs when it is late
B6 450 often beats the schedule: 63 of 246 completed flights, 26%, arrived 15 minutes or more early. The 87 late arrivals split 20 under half an hour, 30 between 30 and 60 minutes, and 37 an hour or more.
- 15+ min early63 flights25.6%
- Within 15 min96 flights39.0%
- 15–29 min late20 flights8.1%
- 30–59 min late30 flights12.2%
- 1–2 hours late25 flights10.2%
- 2+ hours late12 flights4.9%
Scale runs 0% to 100%.
Share of 246 completed flights by arrival against schedule.
14 of 88 late departures made up the time and arrived on time, 16% of them. In the other direction, 13 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BOS.
The worst days
Worst days for B6 450
The latest arrival of the period was on 30 December 2025, 25 hours 56 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 30 December 2025 | 25 hours 56 minutes | National Airspace System |
| 21 December 2025 | 9 hours 44 minutes | Late-arriving aircraft |
| 6 March 2026 | 6 hours 8 minutes | Late-arriving aircraft |
| 16 March 2026 | 3 hours 47 minutes | Late-arriving aircraft |
| 24 September 2025 | 3 hours 22 minutes | National Airspace System |
Delay causes
Why B6 450 runs late
National Airspace System accounts for 55% of the 7,857 delay minutes carriers reported here, and the remaining four split what is left.
- 55%National Airspace System
- 40%Late-arriving aircraft
- 5%Carrier
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,857 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 7,857 delay minutes reported on B6 450.
Cancellations run at 3.91%, against 1.89% 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
15.0% 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 901 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 256 flights under B6 450 in the data flew SAV 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. 256 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 450
For a booking, the cancellation rate is the figure to plan around on B6 450: 3.91% of its 256 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- SAV to BOS, every carrier and departure
- BOS to SAV, the return direction
- 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.