Flight number record
B6 374
JetBlue Airways · Syracuse to Boston
- Route
- SYR → BOS
- Departs
- 06:00
- Flights
- 358
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 374, check with JetBlue Airways.
B6 374 lands a B−, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 358 flights, with a median arrival 10 minutes early.
Set against the rest of the country, B6 374's record is 4 points better than the US average of 77.3%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.3%
Arrivals under 15 minutes late, of 343 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
4.19%
National rate is 1.89%
1 hour+ late
5.5%
National rate is 8.3%
These figures cover 358 flights between September 2025 and August 2026. The median arrival is 10 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.
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 374 flies
B6 374 flies SYR to BOS without a single fixed slot. Its most common scheduled departure was 06:00, used on 201 of 358 flights, with 07:00 (122 flights) next.
- Departs 06:00201 flights56.1%
- Departs 07:00122 flights34.1%
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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and B6 374 runs 8 points worse at 81.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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 374 next to SYR to BOS
Every carrier on SYR to BOS combined arrived on time 83.5% of the time across 505 flights, so B6 374 is 2 points behind it. Across its whole network JetBlue Airways managed 71.3%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 374thin sample | 358 | 81.3% | 76 min | 4.19% | B− |
| All JetBlue Airways on SYR–BOSthin sample | 358 | 81.3% | 76 min | 4.19% | B− |
| All carriers on SYR–BOS | 505 | 83.5% | 75 min | 2.97% | B |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 374 quarter by quarter
B6 374 did not run the same all year. Its best quarter was Jul–Sep 2026 at 96.4% on time and its weakest Jan–Mar 2026 at 66.7%, a swing of 30 points on roughly 90 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 202524 flights—
- Oct–Dec 202591 flights70.0%
- Jan–Mar 202690 flights66.7%
- Apr–Jun 202691 flights92.2%
- Jul–Sep 202662 flights96.4%
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, B6 374 did best on Saturday at 92.2% on time and worst on Sunday at 71.1%. Each day rests on about 51 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 374 runs when it is late
B6 374 often beats the schedule: 123 of 343 completed flights, 36%, arrived 15 minutes or more early. The 64 late arrivals split 23 under half an hour, 22 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early123 flights35.9%
- Within 15 min156 flights45.5%
- 15–29 min late23 flights6.7%
- 30–59 min late22 flights6.4%
- 1–2 hours late9 flights2.6%
- 2+ hours late10 flights2.9%
Scale runs 0% to 100%.
Share of 343 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 30 departures that left 15 minutes late or more, only 2 made it up before arrival. In the other direction, 36 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 374
The latest arrival of the period was on 20 November 2025, 9 hours 15 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 November 2025 | 9 hours 15 minutes | Carrier |
| 14 January 2026 | 5 hours 50 minutes | Late-arriving aircraft |
| 6 April 2026 | 5 hours 38 minutes | Carrier |
| 23 April 2026 | 5 hours 14 minutes | Carrier |
| 17 March 2026 | 4 hours 22 minutes | Carrier |
Delay causes
Why B6 374 runs late
Carrier accounts for 58% of the 4,875 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Carrier
- 33%National Airspace System
- 9%Late-arriving aircraft
- 0%Security
- 0%Extreme weather
The largest share of delay minutes, 58%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,828 of the 4,875 delay minutes reported here. The split is drawn from 4,875 delay minutes reported on B6 374.
Cancellations run at 4.19%, 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
5.5% 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.
Every one of the 358 flights under B6 374 in the data flew SYR 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. 358 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 374
For a booking, the cancellation rate is the figure to plan around on B6 374: 4.19% of its 358 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
- 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
- What a cancellation rate actually tells you (and what it hides)
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.