tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Detroit → San Juan via Dallas-Fort Worth: arrives on time 36%

  1. 19:30 DTW → 21:31 DFW
    F9 3175 · Frontier · 3h 01m · 54% on time, 3.1% cancelled
  2. 1h 30m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
  3. 23:01 DFW → 05:02 SJU +1 day
    F9 2220 · Frontier · 5h 01m · 58% on time, 10.4% cancelled

Total trip 9h 32m, scheduled departure to arrival. Times are local. Both flew on 28 of the last 56 days.

Makes the connection72%The first flight arrived more than 45 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 1h 30m layover.
Arrives on time36%First flight not cancelled (3.1% are) × connection made (72%) × second flight not cancelled (10.4% are) and within 15 minutes (58%).
Total trip9h 32mDTW 19:30 to SJU 05:02, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.