tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

San Francisco → Chicago via Atlanta: arrives on time 86%

  1. 22:59 SFO → 06:40 ATL
    DL 495 · Delta · 4h 41m · 71% on time, 0.5% cancelled
  2. 3h 20m layover in Atlanta (ATL) · 90 min minimum on separate tickets
  3. 10:00 ATL → 11:00 MDW +1 day
    WN 224 · Southwest · 2h 00m · 89% on time, 0.0% cancelled

Total trip 10h 01m, scheduled departure to arrival (Chicago is 2 h ahead of San Francisco). Times are local. Both flew on 21 of the last 56 days.

Makes the connection98%The first flight arrived more than 110 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 20m layover.
Arrives on time86%First flight not cancelled (0.5% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip10h 01mSFO 22:59 to MDW 11:00, layover included

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