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Flight records through . Security counts through .

Which SJU to JAX flight is punctual? Frontier 3305, 7 am.

78% on time across 86 flights in the last 3 months, 3.5% cancelled.

Find your flightSJU security

  • F9 3305

    78%

    on time

    7:00 am

    4% cancelled

  • B6 1742

    68%

    on time

    12:33 pm

    2% cancelled

2 regular flights, June to August 2026. Few flights on this route, so these shares move a lot from month to month.

Which airline is most reliable? Frontier and JetBlue, neck and neck.

Frontier landed on time 76% of the time, JetBlue 74%.

Flight records,

  • Frontier

    76%

    on time

    3.8% cancelled

  • JetBlue

    74%

    on time

    2.0% cancelled

When do the flights leave? 2 regular flights, 7 am to 12:33 pm.

F9 3305 was cancelled most often, 4% of the time.

Flight records,

  1. F9 3305 7:00 am, 4% cancelled 78%
  1. B6 1742 12:33 pm, 2% cancelled 68%

What time should I fly? The 7 am departures.

91% landed on time; at 6 am, 72%. Wednesday was the best day, Tuesday the worst.

Flight records,

DepartsLanded on time
6 am72%
7 am91%
12 pm81%

When is SJU security busiest? 11 am to 2 pm daily.

Calmest around 5 pm. San Juan security, hour by hour.

Security counts,

4a8a12p4p8p
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4a
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12p
1p
2p
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5p
6p
7p
8p
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11p

Monday, 1 pm

1,700

people screened, all terminals.