Route · BWI → ORD · 2020–2025 BTS data
Baltimore to Chicago
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BWI to ORD (Baltimore to Chicago) ranks #539 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.3%
- On-time
- +2.3 pts
- vs US avg
- 77 min
- Delay when late
- 16,274
- Flights
- #539 of 4927
- Corpus placement
Cancelled
1.5%
Best Month
Feb 2024 92%
Worst Month
Dec 2025 63%
Distance
622 mi
Carriers
42
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 205 | 76 | 4 | 1 | YX,F9,MQ,UA |
| Nov 2025 | 216 | 55 | 13 | 0 | UA,F9,MQ,AA,WN,YX |
| Oct 2025 | 246 | 54 | 0 | 0 | AA,UA,WN,F9,MQ,NK |
| Sep 2025 | 248 | 45 | 0 | 0 | MQ,UA,WN,OO,NK,F9 |
| Aug 2025 | 252 | 61 | 3 | 0 | OO,WN,YX,F9,MQ,NK,UA |
| Jul 2025 | 243 | 82 | 10 | 1 | NK,OO,UA,WN,YX,F9,MQ |
| Jun 2025 | 237 | 61 | 2 | 0 | AA,OO,UA,WN,YX,MQ,NK |
| May 2025 | 236 | 43 | 2 | 2 | AA,OO,UA,WN,MQ,NK |
| Apr 2025 | 209 | 43 | 4 | 0 | MQ,UA,WN,AA |
| Mar 2025 | 226 | 50 | 1 | 0 | UA,WN,MQ |
| Feb 2025 | 179 | 32 | 1 | 0 | UA,WN,YX,MQ |
| Jan 2025 | 180 | 33 | 7 | 0 | UA,WN,YX,MQ |
| Dec 2024 | 188 | 28 | 0 | 1 | MQ,UA,WN,YX |
| Nov 2024 | 200 | 21 | 0 | 1 | UA,MQ,WN,AA |
| Oct 2024 | 248 | 33 | 0 | 1 | UA,MQ,WN,AA |
| Sep 2024 | 224 | 20 | 0 | 0 | WN,UA,AA,MQ |
| Aug 2024 | 223 | 52 | 4 | 1 | AA,MQ,WN,UA |
| Jul 2024 | 227 | 54 | 3 | 2 | AA,MQ,UA,WN |
| Jun 2024 | 219 | 44 | 1 | 0 | AA,MQ,UA,WN |
| May 2024 | 227 | 47 | 1 | 0 | AA,MQ,UA,WN |
| Apr 2024 | 220 | 28 | 0 | 0 | AA,MQ,UA,WN |
| Mar 2024 | 224 | 28 | 1 | 0 | AA,MQ,UA,WN |
| Feb 2024 | 205 | 16 | 3 | 0 | AA,MQ,UA,WN |
| Jan 2024 | 220 | 55 | 17 | 2 | AA,MQ,WN,UA |
BWI–ORD seasonal on-time pattern
Best: September (86.0%) · weakest: July (70.6%)
Strongest calendar month
September
86.0% on-time · ~244 flights/mo
Busiest calendar month
August
~255 flights/mo avg
Weakest calendar month
July
70.6% on-time · ~247 flights/mo
Cancellation Rate
1.5%
77 of 5,302 flights
Diversion Rate
0.2%
12 of 5,302 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
BWI on-time profileORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileCompare the two airports
See BWI and ORD side by side on delays, cancellations, and reliability.
Compare BWI vs ORDOrigin-hub reliability standing
Mid-pack among BWI departures
From BWI, this corridor sits with 53 other 75–85% on-time routes out of 64 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 11 below 75%). Destination: Chicago · fleet on-time rank #2602 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to BWI–ORD.
Routes with a similar on-time rate
What the Data Says About BWI to ORD
16,274 tracked flights put the BWI to ORD pairing (Baltimore to Chicago) at a 81.3% on-time rate, squarely in line with the wider network. Delays that do occur run 76.7 minutes on average. Across the 622-mile route and its 42 carriers, the trailing 24 months show 1.5% cancelled and 0.2% diverted (5,302 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 92% on-time, while Dec 2025 came in at just 63% - a 29-point swing worth factoring into travel timing.
On the multi-year calendar, BWI–ORD peaks in September at 86.0% on-time while August carries the heaviest traffic (~255 flights per month) ; the softest month is July at 70.6%, a 15.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does BWI to ORD rank among US routes by traffic? ▼
How often are flights delayed from BWI to ORD? ▼
What is the cancellation rate for BWI to ORD? ▼
How far is the flight from BWI to ORD? ▼
When is the best time to fly from BWI to ORD? ▼
Airports on this route
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.
Using BWI–ORD data
BWI–ORD is mid-pack at 81.3% on-time; month and carrier mix move more than the corridor headline.
- Compare BWI and ORD airport profiles: delay causes and top routes differ even on the same corridor. BWI airport
- If your dates flex, September (86.0% on-time) beats July (70.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.3% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.