Historical on-time performance
Chicago to Salt Lake City
1,258 miData through Dec 2025Source: US DOT · BTS
Flights on MDW–SLC arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 638 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time76%Medianon timep9040 minCancel0.8%Flights638
Why flights run late
Delay causes
- Airline33%
- Weather0%
- Air traffic (NAS)13%
- Late aircraft53%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MDW → SLC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 65% to 84% on time.
- Mornings84% on time · p90 20 min · 710 flights
- Middays83% on time · p90 25 min · 333 flights
- Afternoons75% on time · p90 45 min · 118 flights · limited
- Evenings72% on time · p90 40 min · 126 flights · limited
- Overnights65% on time · p90 65 min · 722 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 78% on time.
- Tuesdays78% on time · p90 35 min · 305 flights
- Saturdays78% on time · p90 35 min · 219 flights
- Mondays77% on time · p90 40 min · 309 flights
- Wednesdays75% on time · p90 40 min · 303 flights
- Thursdays75% on time · p90 50 min · 303 flights
- Sundays73% on time · p90 50 min · 264 flights
- Fridays73% on time · p90 35 min · 306 flights
Advertisement
Keep exploring