Route · ORD → BWI · 2020–2025 BTS data
Chicago to Baltimore
The ORD–BWI corridor (Chicago, IL → Baltimore, MD) runs ahead of the national average, served by 42 carriers across roughly 622 miles.
Data updated 2026-06-13
- 79%
- On-time
- +0 pts
- vs US avg
- 66 min
- Delay when late
- 16,227
- Flights
Cancelled
1.5%
Best Month
Feb 2025 90%
Worst Month
Dec 2025 62%
Distance
622 mi
Carriers
42
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 207 | 79 | 4 | 0 | YX,F9,MQ,UA |
| Nov 2025 | 215 | 55 | 15 | 0 | UA,F9,MQ,AA,WN,YX |
| Oct 2025 | 246 | 53 | 0 | 0 | AA,UA,WN,F9,MQ,NK |
| Sep 2025 | 248 | 48 | 0 | 0 | MQ,UA,WN,NK,F9 |
| Aug 2025 | 253 | 62 | 3 | 1 | OO,WN,YX,F9,MQ,NK,UA |
| Jul 2025 | 247 | 88 | 10 | 1 | NK,OO,UA,WN,YX,F9,MQ |
| Jun 2025 | 237 | 67 | 2 | 1 | AA,OO,UA,WN,YX,MQ,NK |
| May 2025 | 236 | 59 | 3 | 4 | AA,OO,UA,WN,MQ,NK |
| Apr 2025 | 206 | 34 | 4 | 0 | MQ,UA,WN,AA |
| Mar 2025 | 214 | 55 | 2 | 1 | UA,WN,MQ |
| Feb 2025 | 178 | 18 | 1 | 0 | UA,WN,YX,MQ |
| Jan 2025 | 184 | 31 | 8 | 0 | UA,WN,YX,MQ |
| Dec 2024 | 187 | 37 | 0 | 0 | MQ,UA,WN,YX |
| Nov 2024 | 200 | 30 | 0 | 0 | UA,MQ,WN,AA |
| Oct 2024 | 248 | 48 | 0 | 0 | UA,MQ,WN,AA |
| Sep 2024 | 224 | 34 | 0 | 0 | WN,UA,AA,MQ |
| Aug 2024 | 224 | 59 | 2 | 4 | AA,MQ,WN,UA |
| Jul 2024 | 227 | 57 | 3 | 0 | AA,MQ,UA,WN |
| Jun 2024 | 220 | 48 | 1 | 0 | AA,MQ,UA,WN |
| May 2024 | 230 | 59 | 2 | 1 | AA,MQ,UA,WN |
| Apr 2024 | 223 | 44 | 0 | 0 | AA,MQ,UA,WN |
| Mar 2024 | 221 | 48 | 1 | 0 | AA,MQ,UA,WN |
| Feb 2024 | 194 | 29 | 0 | 0 | AA,MQ,UA,WN |
| Jan 2024 | 211 | 72 | 17 | 0 | AA,MQ,WN,UA |
Cancellation Rate
1.5%
78 of 5,280 flights
Diversion Rate
0.2%
13 of 5,280 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →BWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
Destination airport →Compare the two airports
See ORD and BWI side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–BWI.
Routes with a similar on-time rate
What the Data Says About ORD to BWI
16,227 tracked flights put the ORD to BWI pairing (Chicago to Baltimore) at a 79% on-time rate, squarely in line with the wider network. Delays that do occur run 65.8 minutes on average. Across the 622-mile route and its 42 carriers, the trailing 24 months show 1.5% cancelled and 0.2% diverted (5,280 flights sampled).
The monthly split is wide on this route: Feb 2025 posted the strongest performance at 90% on-time, while Dec 2025 came in at just 62% - a 28-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to BWI? ▼
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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.