Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 1148 · Portland (PDX) → Chicago (MDW)
Sold by Southwest. Still flying: 24 of the last 56 days (Mon, Thu, Fri).
Arrives on time85%within 15 minutes, of 26 flights
Cancelled0.0%of scheduled flights
An hour or more late8%of flights that operated
When late, on average63 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Chicago is 2 h ahead of Portland).
- Leaves PDX
- 06:00
- Arrives MDW
- 11:50
- Flight time
- 3h 50m
- Days flown, last 8 weeks
- 24 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at PDX
All flights leaving Portland (PDX) at 6–7 am, wherever they’re going: 94% left within 15 minutes and 0.7% were cancelled (2,997 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.