Route profile
SJU→TPA
Flight reliability, delays and best times to fly from San Juan to Tampa, 1,237 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 29% of comparable major US routes (4,598 compared)
Calculated from 4,821 flights. How this is calculated · What counts as on time
SJU → TPA arrives on time 76.4% of the time; the return trip, TPA → SJU, arrives on time 76.3% of the time.
SJU → TPA spends 22.3 minutes on the ground on a 1,237-mile trip: 15.6 minutes from pushback to wheels-up at SJU and 6.8 minutes from touchdown to gate at TPA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where SJU to TPA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
SJU to TPA is at its best against routes of similar length for flights scheduled at 8 AM: 95.1% arrive on time, 9.3 points ahead of the 85.8% those routes manage at that hour. Against all other routes the gap is 9.2 points.
SJU to TPA struggles most at 11 AM: 73.6% of its flights scheduled then arrive on time, 5.6 points behind the 79.2% on routes of similar length at the same hour. Against all other routes the gap is 7.4 points.
In August, SJU to TPA runs 11.3 points below routes of similar length, 63.8% on time to 75.1%. Against all other routes the gap is 12.7 points.
May is kinder to SJU to TPA than to routes of similar length: 78.7% on time against 73.8%, 4.9 points better.
Southwest Airlines does better on SJU to TPA than on its routes of similar length: 82.1% on time here, 75.7% there, 6.4 points apart. Against all other routes the gap is 4.7 points.
SJU to TPA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 8 AM departures | 95.1% | routes of similar length | 85.8% | +9.3 pts | 144 here, 128,751 there |
| Hour: 11 AM departures | 73.6% | routes of similar length | 79.2% | −5.6 pts | 208 here, 111,292 there |
| Month: August | 63.8% | routes of similar length | 75.1% | −11.3 pts | 376 here, 150,276 there |
| Month: May | 78.7% | routes of similar length | 73.8% | +4.9 pts | 371 here, 155,478 there |
| Airline: Southwest Airlines | 82.1% | routes of similar length | 75.7% | +6.4 pts | 1,445 here, 394,850 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,237 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why SJU → TPA flights are cancelled
July 2023 – July 2026
SJU → TPA cancelled 71 of 4,821 scheduled flights — about 1 in every 68. The reason filed most often was extreme weather, 57.7% of the cancellations coded on this route — about 1 in every 118 scheduled flights.
Share of cancellations
Of 71 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
41 cancellations, 57.7% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
20 cancellations, 28.2% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
10 cancellations, 14.1% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
71 coded cancellations were recorded on SJU → TPA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
54 min late
against a median of 3 min early
Percentiles over 4,821 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at TPA after arriving from SJU.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 42% | Likely to miss |
| 45 min | 23% | High risk |
| 60 min | 16% | High risk |
| 90 min | 8.6% | Some risk |
| 120 min | 5.6% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.47% of the time and diverts 0.15% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,743 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 54 minutes late (90th-percentile gate arrival delay), over 4,821 operations.
Any other layover length: connection checker.
Best time to fly
SJU → TPA flights departing 5–9 AM arrived on time 93.2% of the time, against 66.0% for 6–9 PM departures, a gap of 27.2 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 90.2% on time from 145 flights
- 6 AM: 93.6% on time from 679 flights
- 7 AM: 92.8% on time from 308 flights
- 8 AM: 95.1% on time from 145 flights
- 9 AM: too few flights to score
- 10 AM: 81.1% on time from 204 flights
- 11 AM: 73.6% on time from 212 flights
- 12 PM: too few flights to score
- 1 PM: 81.7% on time from 126 flights
- 2 PM: 73.4% on time from 213 flights
- 3 PM: 63.1% on time from 159 flights
- 4 PM: 70.9% on time from 487 flights
- 5 PM: 64.7% on time from 227 flights
- 6 PM: 63.7% on time from 257 flights
- 7 PM: 69.1% on time from 291 flights
- 8 PM: 65.5% on time from 607 flights
- 9 PM: 67.8% on time from 200 flights
- 10 PM to 11 PM: too few flights to score
Why SJU → TPA runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for SJU → TPA. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on SJU → TPA, at 57.4%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 93.2% of the time and 6–9 PM departures 66.0%.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| JetBlue | 1,812 | 72.6% | 1.43% | -3 min | 12.1% |
| Southwest Airlines | 1,459 | 82.1% | 0.82% | -2 min | 4.6% |
| Frontier Airlines | 1,265 | 76.3% | 1.66% | -6 min | 9.1% |
| Spirit Airlines | 285 | 71.8% | 4.21% | -2 min | 8.4% |
JetBlue flew 37.6% of the 4,821 flights listed. Spirit Airlines cancelled 4.21% of its flights here against 0.82% for Southwest Airlines.
Southwest Airlines arrived on time 10.3 percentage points more often than Spirit Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| B62752 JetBlue | 8:55 PM | 1,022 | 74.5% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 5.9 percentage points.
By month
- Jan: 80.0%
- Feb: 84.7%
- Mar: 78.4%
- Apr: 78.2%
- May: 78.7%
- Jun: 74.5%
- Jul: 67.3%
- Aug: 63.8%
- Sep: 83.8%
- Oct: 81.9%
- Nov: 80.0%
- Dec: 77.5%
August is historically the weakest month and February the strongest, a spread of 20.9 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 60.9% from 172 flights
- August 2023: 63.3% from 154 flights
- September 2023: too few flights to score (103)
- October 2023: too few flights to score (107)
- November 2023: 79.5% from 132 flights
- December 2023: 86.7% from 165 flights
- January 2024: 77.0% from 126 flights
- February 2024: too few flights to score (108)
- March 2024: 73.4% from 145 flights
- April 2024: 83.6% from 124 flights
- May 2024: 79.4% from 131 flights
- June 2024: 68.9% from 165 flights
- July 2024: 68.0% from 171 flights
- August 2024: 65.3% from 129 flights
- September 2024: too few flights to score (93)
- October 2024: too few flights to score (98)
- November 2024: 80.8% from 125 flights
- December 2024: 68.3% from 142 flights
- January 2025: 78.4% from 125 flights
- February 2025: 86.2% from 123 flights
- March 2025: 84.7% from 145 flights
- April 2025: too few flights to score (111)
- May 2025: 84.7% from 124 flights
- June 2025: 77.0% from 139 flights
- July 2025: 73.6% from 145 flights
- August 2025: too few flights to score (114)
- September 2025: too few flights to score (83)
- October 2025: too few flights to score (88)
- November 2025: 79.7% from 128 flights
- December 2025: 75.9% from 142 flights
- January 2026: 84.7% from 133 flights
- February 2026: too few flights to score (90)
- March 2026: 76.9% from 150 flights
- April 2026: 65.0% from 123 flights
- May 2026: too few flights to score (116)
- June 2026: 78.0% from 166 flights
- July 2026: 67.4% from 186 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 76.1% against 79.0% in the 12 months before — declining by 2.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 4,821 SJU → TPA flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed