Carrier route record
B6SJU→TPA
JetBlue Airways · San Juan to Tampa
- Flights
- 680
- Period
- September 2025 to August 2026
- Share of route
- 44%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on SJU to TPA lands a B, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 680 flights, with a median arrival 6 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on SJU to TPA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.1%
Arrivals under 15 minutes late, of 667 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
1.47%
National rate is 1.89%
Whole route
77.2%
Every carrier on SJU to TPA, 1,562 flights
These figures cover 680 flights between September 2025 and August 2026. Beyond the headline rate, 8.4% 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.
Carrier by carrier
JetBlue against every carrier on SJU to TPA
JetBlue flew 680 of the 1,562 flights on SJU to TPA, about 44% of it. Its 77.1% on time is about level with the route as a whole at 77.2%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Southwest at 79.6% to Spirit at 55.8%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 469 | 79.6% | 59 min | 0.85% | B+ |
| JetBlue Airways (this page) | 680 | 77.1% | 72 min | 1.47% | B |
| Frontier Airlinesthin sample | 363 | 76.8% | 87 min | 2.48% | B |
| Spirit Airlinesthin sample | 50 | 55.8% | 51 min | 14.00% | D− |
Flight by flight
JetBlue flight numbers on SJU to TPA
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.
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 40 points, against half a point between the best and worst carrier.
- 5am–8am293 flights94.1%
- 8am–11am20 flights—
- 11am–2pm86 flights68.4%
- 2pm–5pm91 flights54.4%
- 5pm–8pm58 flights62.1%
- 8pm–5am132 flights66.7%
Scale runs 45% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 94.1% of the time, against 54.4% for the afternoon window. That is 40 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 293 flights scheduled in it.
Across the year
JetBlue on SJU to TPA through the year
September is the best month on the calendar at 96.9% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 93 flights.
Across the week, Friday is the strongest day at 83.8% on time and Sunday the weakest at 70.8%, a spread of 13 points.
Arrival by arrival
How late JetBlue on SJU to TPA runs when it is late
The 153 late arrivals split 44 under half an hour, 53 between 30 and 60 minutes, and 56 an hour or more.
- 15+ min early141 flights21.1%
- Within 15 min373 flights55.9%
- 15–29 min late44 flights6.6%
- 30–59 min late53 flights7.9%
- 1–2 hours late34 flights5.1%
- 2+ hours late22 flights3.3%
Scale runs 0% to 100%.
Share of 667 completed flights by arrival against schedule.
27 of 170 late departures made up the time and arrived on time, 16% of them. Only 10 left on time and still arrived late.
The worst days
Worst days for JetBlue on SJU to TPA
The latest arrival of the period was on 5 October 2025, 8 hours 5 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 October 2025 | 8 hours 5 minutes | Late-arriving aircraft |
| 28 August 2026 | 5 hours 56 minutes | Late-arriving aircraft |
| 3 August 2026 | 5 hours 22 minutes | Late-arriving aircraft |
| 29 November 2025 | 4 hours 56 minutes | Late-arriving aircraft |
| 29 August 2026 | 4 hours 47 minutes | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 62% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Late-arriving aircraft
- 32%Carrier
- 6%National Airspace System
- 1%Extreme weather
62% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 62 to one. The split is drawn from 10,985 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.1% on time here.
Cancellations sit at 1.47% against a national 1.89%, which is ordinary. Diversions add another 0.44%.
Connections and stage length
What a delay here costs
8.4% 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 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.
The return leg runs 76.0% on time across 680 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 680 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 SJU to TPA
Put together: treat all of this as provisional. 680 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 77.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 667 completed flights over 12 months sit behind that.
Related
Where to go next
- SJU to TPA, every carrier
- JetBlue on TPA to SJU, the return leg
- Southwest Airlines on SJU to TPA79.6%
- Frontier Airlines on SJU to TPA76.8%
- JetBlue Airways network-wide record
- Luis Munoz Marin International (SJU) delay statistics
- Tampa International (TPA) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.