Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Columbus via Las Vegas: arrives on time 3%
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15:45 SFO → 17:25 LASWN 1288 · Southwest · 1h 40m · 4% on time, 3.8% cancelled
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1h 05m layover in Las Vegas (LAS) · 45 min minimum on one ticket
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18:30 LAS → 01:25 CMH +1 dayWN 873 · Southwest · 3h 55m · 36% on time, 0.0% cancelled
Total trip 6h 40m, scheduled departure to arrival (Columbus is 3 h ahead of San Francisco). Times are local. Both flew on 24 of the last 56 days.
Makes the connection8%The first flight arrived more than 20 minutes late on 92% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time3%First flight not cancelled (3.8% are) × connection made (8%) × second flight not cancelled (0.0% are) and within 15 minutes (36%).
Total trip6h 40mSFO 15:45 to CMH 01:25, 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.