Route · MDW → SLC · 2020–2025 BTS data
Chicago to Salt Lake City
The MDW–SLC corridor (Chicago, IL → Salt Lake City, UT) runs behind the national average, served by 1 carrier across roughly 1,259 miles.
Data updated 2026-06-13
- 75.8%
- On-time
- -3.2 pts
- vs US avg
- 55 min
- Delay when late
- 4,055
- Flights
Cancelled
0.9%
Best Month
Apr 2025 91%
Worst Month
Jul 2025 67%
Distance
1,259 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 42 | 19 | 0 | 0 | WN |
| Nov 2025 | 35 | 7 | 2 | 0 | WN |
| Oct 2025 | 57 | 7 | 0 | 0 | WN |
| Sep 2025 | 56 | 13 | 0 | 0 | WN |
| Aug 2025 | 57 | 17 | 2 | 1 | WN |
| Jul 2025 | 57 | 19 | 1 | 0 | WN |
| Jun 2025 | 55 | 18 | 0 | 0 | WN |
| May 2025 | 53 | 8 | 0 | 0 | WN |
| Apr 2025 | 54 | 5 | 0 | 0 | WN |
| Mar 2025 | 62 | 9 | 0 | 0 | WN |
| Feb 2025 | 54 | 15 | 0 | 0 | WN |
| Jan 2025 | 56 | 7 | 0 | 0 | WN |
| Dec 2024 | 43 | 9 | 0 | 0 | WN |
| Nov 2024 | 47 | 5 | 0 | 0 | WN |
| Oct 2024 | 57 | 8 | 0 | 0 | WN |
| Sep 2024 | 60 | 6 | 0 | 0 | WN |
| Aug 2024 | 60 | 20 | 0 | 0 | WN |
| Jul 2024 | 57 | 13 | 0 | 0 | WN |
| Jun 2024 | 54 | 13 | 0 | 0 | WN |
| May 2024 | 54 | 14 | 0 | 1 | WN |
| Apr 2024 | 53 | 7 | 0 | 1 | WN |
| Mar 2024 | 57 | 12 | 1 | 0 | WN |
| Feb 2024 | 54 | 8 | 0 | 0 | WN |
| Jan 2024 | 58 | 15 | 5 | 0 | WN |
Cancellation Rate
0.9%
11 of 1,292 flights
Diversion Rate
0.2%
3 of 1,292 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Destination airport →Compare the two airports
See MDW and SLC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MDW–SLC.
Routes with a similar on-time rate
What the Data Says About MDW to SLC
The Chicago to Salt Lake City corridor (MDW to SLC) posts a 75.8% on-time rate on the lower edge of the average band, based on 4,055 tracked flights. Late flights run 54.8 minutes behind on average. 1 carrier cover the 1,259-mile route; over the last 24 months, 11 of 1,292 flights were cancelled (0.9%) and 0.2% diverted.
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 67% - a 24-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MDW to SLC? ▼
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Flight Guides
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.