Route · PHL → MDW · 2020–2025 BTS data
Philadelphia to Chicago
The PHL–MDW corridor (Philadelphia, PA → Chicago, IL) runs ahead of the national average, served by 3 carriers across roughly 668 miles.
Data updated 2026-06-13
- 81.1%
- On-time
- +2.1 pts
- vs US avg
- 72 min
- Delay when late
- 8,414
- Flights
Cancelled
1.3%
Best Month
Mar 2025 94%
Worst Month
Jul 2025 56%
Distance
668 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 122 | 50 | 0 | 0 | WN,F9 |
| Nov 2025 | 136 | 28 | 8 | 2 | F9,WN |
| Oct 2025 | 155 | 36 | 0 | 0 | WN,F9 |
| Sep 2025 | 159 | 25 | 0 | 0 | WN,F9 |
| Aug 2025 | 156 | 38 | 1 | 0 | WN,F9 |
| Jul 2025 | 154 | 68 | 4 | 0 | WN,F9 |
| Jun 2025 | 146 | 53 | 1 | 0 | WN,F9 |
| May 2025 | 128 | 37 | 1 | 0 | WN,F9 |
| Apr 2025 | 121 | 21 | 0 | 1 | F9,WN |
| Mar 2025 | 89 | 5 | 2 | 0 | WN |
| Feb 2025 | 86 | 19 | 0 | 0 | WN |
| Jan 2025 | 103 | 27 | 2 | 0 | WN,F9 |
| Dec 2024 | 143 | 34 | 1 | 0 | F9,WN |
| Nov 2024 | 156 | 27 | 0 | 0 | WN,F9 |
| Oct 2024 | 177 | 41 | 0 | 0 | WN,F9 |
| Sep 2024 | 185 | 27 | 1 | 0 | WN,F9 |
| Aug 2024 | 181 | 55 | 5 | 1 | F9,WN |
| Jul 2024 | 153 | 43 | 7 | 0 | F9,WN |
| Jun 2024 | 147 | 37 | 0 | 1 | F9,WN |
| May 2024 | 146 | 47 | 1 | 1 | F9,WN |
| Apr 2024 | 141 | 33 | 1 | 1 | F9,WN |
| Mar 2024 | 132 | 25 | 0 | 0 | F9,WN |
| Feb 2024 | 102 | 6 | 0 | 0 | WN |
| Jan 2024 | 122 | 29 | 10 | 1 | F9,WN |
Cancellation Rate
1.3%
45 of 3,340 flights
Diversion Rate
0.2%
8 of 3,340 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Origin airport →MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See PHL 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 PHL–MDW.
Routes with a similar on-time rate
What the Data Says About PHL to MDW
8,414 tracked flights put the PHL to MDW pairing (Philadelphia to Chicago) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 72.2 minutes on average. Across the 668-mile route and its 3 carriers, the trailing 24 months show 1.3% cancelled and 0.2% diverted (3,340 flights sampled).
The monthly split is wide on this route: Mar 2025 posted the strongest performance at 94% on-time, while Jul 2025 came in at just 56% - a 39-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.