Route · MDW → PHL · 2020–2025 BTS data
Chicago to Philadelphia
The MDW–PHL corridor (Chicago, IL → Philadelphia, PA) runs behind the national average, served by 3 carriers across roughly 668 miles.
Data updated 2026-06-13
- 75.7%
- On-time
- -3.3 pts
- vs US avg
- 63 min
- Delay when late
- 8,393
- Flights
Cancelled
1.0%
Best Month
Feb 2025 87%
Worst Month
Jul 2025 64%
Distance
668 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 122 | 41 | 0 | 0 | WN,F9 |
| Nov 2025 | 136 | 24 | 7 | 0 | F9,WN |
| Oct 2025 | 155 | 28 | 0 | 0 | WN,F9 |
| Sep 2025 | 159 | 28 | 0 | 0 | WN,F9 |
| Aug 2025 | 155 | 36 | 1 | 1 | WN,F9 |
| Jul 2025 | 153 | 55 | 4 | 0 | WN,F9 |
| Jun 2025 | 147 | 52 | 0 | 0 | WN,F9 |
| May 2025 | 128 | 34 | 0 | 0 | WN,F9 |
| Apr 2025 | 121 | 25 | 0 | 1 | F9,WN |
| Mar 2025 | 89 | 17 | 1 | 0 | WN |
| Feb 2025 | 85 | 11 | 0 | 0 | WN |
| Jan 2025 | 103 | 17 | 4 | 0 | WN,F9 |
| Dec 2024 | 142 | 28 | 0 | 0 | F9,WN |
| Nov 2024 | 156 | 23 | 0 | 0 | WN,F9 |
| Oct 2024 | 177 | 35 | 1 | 1 | WN,F9 |
| Sep 2024 | 186 | 33 | 1 | 0 | WN,F9 |
| Aug 2024 | 181 | 53 | 1 | 1 | F9,WN |
| Jul 2024 | 153 | 48 | 4 | 1 | F9,WN |
| Jun 2024 | 146 | 40 | 1 | 0 | F9,WN |
| May 2024 | 145 | 47 | 0 | 0 | F9,WN |
| Apr 2024 | 140 | 38 | 0 | 1 | F9,WN |
| Mar 2024 | 131 | 19 | 0 | 0 | F9,WN |
| Feb 2024 | 95 | 13 | 0 | 0 | WN |
| Jan 2024 | 122 | 35 | 8 | 0 | F9,WN |
Cancellation Rate
1.0%
33 of 3,327 flights
Diversion Rate
0.2%
6 of 3,327 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 →PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Destination airport →Compare the two airports
See MDW and PHL 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–PHL.
Routes with a similar on-time rate
What the Data Says About MDW to PHL
The Chicago to Philadelphia corridor (MDW to PHL) posts a 75.7% on-time rate on the lower edge of the average band, based on 8,393 tracked flights. Late flights run 62.7 minutes behind on average. 3 carriers cover the 668-mile route; over the last 24 months, 33 of 3,327 flights were cancelled (1.0%) and 0.2% diverted.
The monthly split is wide on this route: Feb 2025 posted the strongest performance at 87% on-time, while Jul 2025 came in at just 64% - a 23-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.