Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Tucson → Phoenix via San Diego: arrives on time 31%
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19:00 TUS → 20:20 SANWN 3551 · Southwest · 1h 20m · 35% on time, 0.0% cancelled
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1h 25m layover in San Diego (SAN) · 45 min minimum on one ticket
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21:45 SAN → 23:15 PHXWN 3527 · Southwest · 1h 25m · 47% on time, 0.0% cancelled
Total trip 4h 10m, scheduled departure to arrival. Times are local. Both flew on 24 of the last 56 days.
Makes the connection65%The first flight arrived more than 40 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 1h 25m layover.
Arrives on time31%First flight not cancelled (0.0% are) × connection made (65%) × second flight not cancelled (0.0% are) and within 15 minutes (47%).
Total trip4h 10mTUS 19:00 to PHX 23:15, 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.