Route · MDW → OAK · 2020–2025 BTS data
Chicago to Oakland
The MDW–OAK corridor (Chicago, IL → Oakland, CA) runs behind the national average, served by 1 carrier across roughly 1,844 miles.
Data updated 2026-06-13
- 75.3%
- On-time
- -3.7 pts
- vs US avg
- 56 min
- Delay when late
- 3,821
- Flights
Cancelled
1.0%
Best Month
Dec 2023 90%
Worst Month
Jun 2024 55%
Distance
1,844 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 33 | 21 | 0 | 0 | WN |
| Nov 2025 | 33 | 10 | 2 | 0 | WN |
| Oct 2025 | 35 | 19 | 0 | 0 | WN |
| Sep 2025 | 34 | 8 | 0 | 0 | WN |
| Aug 2025 | 37 | 8 | 0 | 0 | WN |
| Jul 2025 | 35 | 14 | 0 | 1 | WN |
| Jun 2025 | 34 | 8 | 0 | 0 | WN |
| May 2025 | 31 | 8 | 0 | 0 | WN |
| Apr 2025 | 31 | 8 | 0 | 0 | WN |
| Mar 2025 | 36 | 8 | 0 | 0 | WN |
| Feb 2025 | 30 | 8 | 0 | 0 | WN |
| Jan 2025 | 32 | 4 | 0 | 0 | WN |
| Dec 2024 | 34 | 11 | 0 | 0 | WN |
| Nov 2024 | 33 | 10 | 0 | 0 | WN |
| Oct 2024 | 58 | 10 | 0 | 0 | WN |
| Sep 2024 | 60 | 9 | 0 | 0 | WN |
| Aug 2024 | 65 | 21 | 0 | 0 | WN |
| Jul 2024 | 89 | 26 | 1 | 0 | WN |
| Jun 2024 | 80 | 36 | 0 | 0 | WN |
| May 2024 | 54 | 19 | 1 | 2 | WN |
| Apr 2024 | 53 | 6 | 0 | 0 | WN |
| Mar 2024 | 52 | 9 | 1 | 0 | WN |
| Jan 2024 | 38 | 8 | 3 | 0 | WN |
| Dec 2023 | 62 | 6 | 3 | 0 | WN |
Cancellation Rate
1.0%
11 of 1,079 flights
Diversion Rate
0.3%
3 of 1,079 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 →OAK - Oakland
Full on-time, delay-cause, and seasonal performance for Oakland, CA.
Destination airport →Compare the two airports
See MDW and OAK 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–OAK.
Routes with a similar on-time rate
What the Data Says About MDW to OAK
The Chicago to Oakland corridor (MDW to OAK) posts a 75.3% on-time rate on the lower edge of the average band, based on 3,821 tracked flights. Late flights run 56.0 minutes behind on average. 1 carrier cover the 1,844-mile route; over the last 24 months, 11 of 1,079 flights were cancelled (1.0%) and 0.3% diverted.
The monthly split is wide on this route: Dec 2023 posted the strongest performance at 90% on-time, while Jun 2024 came in at just 55% - a 35-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.