Best Time to Fly SLC to MKE: On-Time Stats by Hour & Airline
Salt Lake City International → General Mitchell International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.7% of Salt Lake City (SLC) to Milwaukee (MKE) flights arrived on time (363 scheduled flights). That is 2.0 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (81% on time) and August the worst month (61%).
The cancellation rate was 0.8% (US average 1.8%).
SLC to MKE on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 79.3% | 88 min | 0.9% | 347 |
| SkyWest Airlines | Limited data | 16 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to MKE
On-time arrival % by scheduled departure hour (local time), 728 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | Limited data | 1 | |
| 5pm–6pm | 78.7% | 0.4% | 696 |
| 6pm–7pm | 77.4% | 0.0% | 31 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to MKE
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 90.0% | +9.0 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 67.7% | -13.2 pts | 0.0% | 124 |
| All other days | 81.0% | — | 0.5% | 562 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).