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

Seattle → Denver via San Francisco: arrives on time 54%

  1. 15:33 SEA → 17:47 SFO
    UA 2866 · United · 2h 14m · 56% on time, 0.0% cancelled
  2. 1h 09m layover in San Francisco (SFO) · 45 min minimum on one ticket
  3. 18:56 SFO → 22:44 DEN
    UA 2436 · United · 2h 48m · 88% on time, 0.0% cancelled

Total trip 6h 11m, scheduled departure to arrival (Denver is 1 h ahead of Seattle). Times are local. Both flew on 46 of the last 56 days.

Makes the connection62%The first flight arrived more than 24 minutes late on 38% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time54%First flight not cancelled (0.0% are) × connection made (62%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip6h 11mSEA 15:33 to DEN 22:44, 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.