Route · SLC → MDW · 2020–2025 BTS data
Salt Lake City to Chicago
The SLC–MDW corridor (Salt Lake City, UT → Chicago, IL) runs ahead of the national average, served by 1 carrier across roughly 1,259 miles.
Data updated 2026-06-13
- 85.4%
- On-time
- +6.4 pts
- vs US avg
- 54 min
- Delay when late
- 4,067
- Flights
Cancelled
0.5%
Best Month
Oct 2024 95%
Worst Month
Jan 2024 67%
Distance
1,259 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 42 | 7 | 0 | 0 | WN |
| Nov 2025 | 35 | 5 | 1 | 0 | WN |
| Oct 2025 | 57 | 9 | 0 | 0 | WN |
| Sep 2025 | 56 | 6 | 0 | 0 | WN |
| Aug 2025 | 57 | 6 | 0 | 1 | WN |
| Jul 2025 | 57 | 6 | 1 | 0 | WN |
| Jun 2025 | 55 | 9 | 0 | 0 | WN |
| May 2025 | 52 | 7 | 0 | 0 | WN |
| Apr 2025 | 54 | 5 | 0 | 1 | WN |
| Mar 2025 | 62 | 11 | 0 | 0 | WN |
| Feb 2025 | 54 | 10 | 0 | 0 | WN |
| Jan 2025 | 56 | 6 | 0 | 0 | WN |
| Dec 2024 | 43 | 3 | 0 | 0 | WN |
| Nov 2024 | 47 | 4 | 0 | 0 | WN |
| Oct 2024 | 57 | 3 | 0 | 0 | WN |
| Sep 2024 | 60 | 4 | 0 | 0 | WN |
| Aug 2024 | 60 | 9 | 0 | 0 | WN |
| Jul 2024 | 57 | 7 | 0 | 1 | WN |
| Jun 2024 | 54 | 12 | 0 | 0 | WN |
| May 2024 | 54 | 8 | 0 | 1 | WN |
| Apr 2024 | 53 | 5 | 0 | 0 | WN |
| Mar 2024 | 57 | 9 | 0 | 0 | WN |
| Feb 2024 | 54 | 8 | 0 | 0 | WN |
| Jan 2024 | 58 | 19 | 4 | 0 | WN |
Cancellation Rate
0.5%
6 of 1,291 flights
Diversion Rate
0.3%
4 of 1,291 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See SLC and MDW side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–MDW.
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What the Data Says About SLC to MDW
Salt Lake City to Chicago (SLC to MDW) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.4% on-time rate across 4,067 flights, with delays that do happen averaging 54.3 minutes. The corridor runs roughly 1,259 miles and is served by 1 carrier. Over the most recent 24 months, 6 of 1,291 flights were cancelled (0.5%) and 4 diverted (0.3%).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Jan 2024 came in at just 67% - a 28-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.