MKE to SLC flight delays
Milwaukee, WI (MKE) Salt Lake City, UT (SLC) · 1,247 miles
363 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
82.73%
Arrived on time
Within 15 minutes of schedule
0.83%
Cancelled
Share of scheduled flights
87 min
When late, late by
Average across delayed arrivals
16 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In July it ran 40.2 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 87 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
Only Delta Air Lines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 363 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, Delta Air Lines arrived on time most often on MKE to SLC. Flights ran closest to schedule in May and worst in December.
Every airline on MKE to SLC
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 347 | 83.38% | 0.86% | 93 min | B |
| SkyWest Airlines | 16 | 68.75% | 0% | 18 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SLC to MKE Salt Lake City back to Milwaukee 81.06% on time BOther routes from Milwaukee
Common questions
Are flights from Milwaukee to Salt Lake City usually delayed?
82.73% of flights on the MKE to SLC route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Milwaukee to Salt Lake City?
Only Delta Air Lines appears in the published record on this route, with 347 flights and 83.38% arriving on time.
How often are MKE to SLC flights cancelled?
0.83% of scheduled flights did not operate — about 8 in every thousand. That is in the normal range.
What is the best month to fly Milwaukee to Salt Lake City?
July, when 93.5% of flights arrived on time. The worst was December at 53.3%.
When MKE to SLC flights are late, how late are they?
About 87 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MKE to SLC during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →