Route · HOU → MDW · 2020–2025 BTS data
Houston to Chicago
The HOU–MDW corridor (Houston, TX → Chicago, IL) runs ahead of the national average, served by 1 carrier across roughly 937 miles.
Data updated 2026-06-13
- 81%
- On-time
- +2 pts
- vs US avg
- 55 min
- Delay when late
- 10,734
- Flights
Cancelled
1.4%
Best Month
Sep 2024 96%
Worst Month
Jul 2025 65%
Distance
937 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 144 | 33 | 0 | 0 | WN |
| Nov 2025 | 145 | 35 | 8 | 1 | WN |
| Oct 2025 | 154 | 32 | 0 | 0 | WN |
| Sep 2025 | 163 | 18 | 1 | 0 | WN |
| Aug 2025 | 167 | 37 | 3 | 0 | WN |
| Jul 2025 | 187 | 66 | 3 | 2 | WN |
| Jun 2025 | 179 | 55 | 3 | 0 | WN |
| May 2025 | 161 | 33 | 1 | 0 | WN |
| Apr 2025 | 142 | 20 | 0 | 0 | WN |
| Mar 2025 | 150 | 17 | 0 | 1 | WN |
| Feb 2025 | 112 | 11 | 2 | 0 | WN |
| Jan 2025 | 128 | 16 | 6 | 0 | WN |
| Dec 2024 | 140 | 33 | 1 | 0 | WN |
| Nov 2024 | 143 | 16 | 0 | 1 | WN |
| Oct 2024 | 145 | 21 | 1 | 0 | WN |
| Sep 2024 | 160 | 7 | 0 | 1 | WN |
| Aug 2024 | 164 | 23 | 0 | 0 | WN |
| Jul 2024 | 170 | 54 | 9 | 2 | WN |
| Jun 2024 | 164 | 41 | 0 | 1 | WN |
| May 2024 | 150 | 42 | 2 | 2 | WN |
| Apr 2024 | 144 | 29 | 0 | 0 | WN |
| Mar 2024 | 138 | 21 | 2 | 0 | WN |
| Feb 2024 | 112 | 13 | 0 | 1 | WN |
| Jan 2024 | 128 | 28 | 10 | 1 | WN |
Cancellation Rate
1.4%
52 of 3,590 flights
Diversion Rate
0.4%
13 of 3,590 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
HOU - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See HOU 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 HOU–MDW.
Routes with a similar on-time rate
Routes of a similar trip length
What the Data Says About HOU to MDW
10,734 tracked flights put the HOU to MDW pairing (Houston to Chicago) at a 81% on-time rate, squarely in line with the wider network. Delays that do occur run 55.3 minutes on average. Across the 937-mile route and its 1 carrier, the trailing 24 months show 1.4% cancelled and 0.4% diverted (3,590 flights sampled).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 96% on-time, while Jul 2025 came in at just 65% - a 31-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from HOU to MDW? ▼
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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.