Carrier route record

B6DFW→BOS

JetBlue Airways · Dallas-Fort Worth to Boston

Flights: 231
Period: July 2025 to June 2026
Share of route: 6%
Carriers: 4

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

JetBlue on DFW to BOS earns a D−, which is as low as this site's scale goes for a reason. Only 55.9% of flights arrive inside the 15-minute window, 22 points worse than the national rate of 77.6%. Late arrivals average close to two hours. Treat any tight connection here as a coin flip. That rests on 231 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 861 at 77.4% on time.

The national on-time rate over the same period is 77.6%, so JetBlue on DFW to BOS runs 22 points behind the country as a whole. Across a thousand flights that is about 217 extra late arrivals.

On time

55.9%

Arrivals under 15 minutes late, of 220 completed flights

Avg delay

105 min

Across delayed arrivals only, not all flights

Cancelled

3.46%

National rate is 1.81%

Whole route

67.1%

Every carrier on DFW to BOS, 3,744 flights

These figures cover 231 flights between July 2025 and June 2026. Beyond the headline rate, 25.5% 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.

Carrier by carrier

JetBlue against every carrier on DFW to BOS

JetBlue flew 231 of the 3,744 flights on DFW to BOS, about 6% of it. Its 55.9% on time is 11 points worse than the route as a whole, which runs 67.1%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 77.4% to Spirit at 46.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 77.4% of the time; American Airlines manages 64.7%. Sample sizes sit next to every figure, because a two-point gap across 2,639 flights means less than a ten-point one.

On-time performance by carrier on DFW to BOS
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	861	77.4%	100 min	2.44%	B
American Airlines	2,639	64.7%	69 min	3.45%	D−
JetBlue Airways (this page)thin sample	231	55.9%	105 min	3.46%	D−
Spirit Airlinesthin sample	13	46.2%	70 min	0.00%	F+

American Airlines cancels 3.5% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Departure window

When JetBlue runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 13 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am—
8am–11am—
11am–2pm131 flights52.4%
2pm–5pm56 flights52.8%
5pm–8pm44 flights70.7%
8pm–5am—

Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 52.4% on time against 70.7% for 5pm–8pm. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 11am–2pm window is the busiest, with 131 flights scheduled in it.

Across the year

JetBlue on DFW to BOS through the year

Jul–Sep 202588 flights42.4%
Oct–Dec 202590 flights59.8%
Jan–Mar 202653 flights72.9%

Scale runs 35% to 80%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 55.9% on time across 231 flights.

JetBlue on DFW to BOS did not run the same all year. Its best quarter was Jan–Mar 2026 at 72.9% on time and its weakest Jul–Sep 2025 at 42.4%, a swing of 31 points on roughly 77 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.

Across the week, Wednesday is the strongest day at 58.1% on time and Sunday the weakest at 43.8%. 14 points is a smaller lever than departure hour, but it is free.

Delay causes

Why JetBlue runs late on this route

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.

National Airspace System
42%
Carrier
29%
Late-arriving aircraft
29%
Extreme weather
0%

42% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 4,258 minutes out of 10,000, against a national NAS share of 21%. The split is drawn from 10,183 reported delay minutes.

Cancellations run at 3.46%, against 1.81% 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 stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 25.5% 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.

At 1,562 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg is a different operation and performs like one: it runs 78.4% on time across 231 flights, 23 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 23 points of difference.

One caution: this is a thin sample. 231 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 JetBlue on DFW to BOS

Put together: the delay figures matter less here than the 3.46% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 220 completed flights over 12 months sit behind that.

Where to go next

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