Route profile
DTW→ORD
Flight reliability, delays and best times to fly from Detroit to Chicago, 235 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 26% of comparable major US routes (4,598 compared)
Calculated from 17,417 flights. How this is calculated
DTW → ORD arrives on time 77.7% of the time; the return trip, ORD → DTW, arrives on time 76.7% of the time.
DTW → ORD spends 37.9 minutes on the ground on a 235-mile trip: 19.3 minutes from pushback to wheels-up at DTW and 18.6 minutes from touchdown to gate at ORD.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Why DTW → ORD flights are cancelled
July 2023 – July 2026
DTW → ORD cancelled 336 of 17,417 scheduled flights — about 1 in every 52. The reason filed most often was extreme weather, 61.3% of the cancellations coded on this route — about 1 in every 85 scheduled flights.
Share of cancellations
Of 336 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
206 cancellations, 61.3% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
68 cancellations, 20.2% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
62 cancellations, 18.5% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
336 coded cancellations were recorded on DTW → ORD; the section appears from 50.
When it goes wrong
July 2023 – July 2026
52 min late
against a median of 6 min early
Percentiles over 17,417 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at ORD after arriving from DTW.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 37% | Likely to miss |
| 45 min | 22% | High risk |
| 60 min | 15% | Some risk |
| 90 min | 8.9% | Some risk |
| 120 min | 6.2% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.93% of the time and diverts 0.13% of the time, which a late arrival never shows up in.
Chance of missing is the share of 17,058 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 52 minutes late (90th-percentile gate arrival delay), over 17,417 operations.
Any other layover length: connection checker.
Best time to fly
DTW → ORD flights departing 9 AM–12 PM arrived on time 85.5% of the time, against 64.3% for 6–9 PM departures, a gap of 21.2 percentage points.
By day and hour
On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (DTW).
Hour of departure matters more than day of the week: hourly averages sit a typical 8.7 points from the route-wide rate, weekday averages 2.0 points.
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
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| 8 PM–9 PM |
On-time rate, % · stronger color, fewer on time
- 50–59
- 60–69
- 70–79
- 80–89
- 90–99
- Fewer than 120 flights, not scored
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.
No slot is named best or worst: too few reach 500 flights. Departures before 6 AM and after 9 PM (574 flights) are not drawn: no slot in those hours has enough flights to score.
View as tableHide table
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|---|
| 6 AM–7 AM | 86.3% on time261 flights | 86.9% on time230 flights | 88.1% on time239 flights | 86.1% on time238 flights | 86.2% on time251 flights | 88.0% on time243 flights | 85.0% on time247 flights |
| 7 AM–8 AM | 79.2% on time278 flights | 81.4% on time283 flights | 86.2% on time288 flights | 79.7% on time287 flights | 77.0% on time286 flights | 80.4% on time186 flights | 84.1% on time276 flights |
| 8 AM–9 AM | 79.6% on time163 flights | 81.3% on time172 flights | 85.1% on time166 flights | 78.2% on time158 flights | 76.4% on time161 flights | 84.6% on time199 flights | 76.0% on time156 flights |
| 9 AM–10 AM | 82.6% on time228 flights | 83.8% on time228 flights | 89.6% on time232 flights | 81.7% on time228 flights | 78.3% on time230 flights | 80.5% on time193 flights | 84.1% on time223 flights |
| 10 AM–11 AM | 99 flights, too few to score | 105 flights, too few to score | 90 flights, too few to score | 100 flights, too few to score | 102 flights, too few to score | 97 flights, too few to score | 87 flights, too few to score |
| 11 AM–12 PM | 88.7% on time178 flights | 89.9% on time171 flights | 89.0% on time184 flights | 82.1% on time175 flights | 90.3% on time170 flights | 91.4% on time142 flights | 86.1% on time170 flights |
| 12 PM–1 PM | 80.8% on time197 flights | 75.4% on time209 flights | 80.3% on time203 flights | 82.1% on time196 flights | 77.6% on time203 flights | 78.0% on time184 flights | 77.2% on time196 flights |
| 1 PM–2 PM | 107 flights, too few to score | 85 flights, too few to score | 102 flights, too few to score | 105 flights, too few to score | 102 flights, too few to score | 109 flights, too few to score | 99 flights, too few to score |
| 2 PM–3 PM | 79.0% on time128 flights | 84.4% on time141 flights | 81.4% on time132 flights | 82.3% on time126 flights | 78.6% on time131 flights | 115 flights, too few to score | 74.8% on time120 flights |
| 3 PM–4 PM | 81 flights, too few to score | 69 flights, too few to score | 73 flights, too few to score | 73 flights, too few to score | 79 flights, too few to score | 74 flights, too few to score | 76 flights, too few to score |
| 4 PM–5 PM | 77.4% on time151 flights | 72.1% on time150 flights | 78.2% on time145 flights | 79.5% on time153 flights | 72.4% on time146 flights | 114 flights, too few to score | 72.7% on time141 flights |
| 5 PM–6 PM | 67.2% on time193 flights | 68.8% on time163 flights | 63.4% on time166 flights | 66.8% on time199 flights | 61.7% on time202 flights | 113 flights, too few to score | 62.8% on time196 flights |
| 6 PM–7 PM | 62.2% on time234 flights | 58.3% on time213 flights | 55.9% on time220 flights | 52.5% on time222 flights | 52.3% on time225 flights | 66.9% on time172 flights | 58.9% on time220 flights |
| 7 PM–8 PM | 47 flights, too few to score | 48 flights, too few to score | 44 flights, too few to score | 44 flights, too few to score | 50 flights, too few to score | 40 flights, too few to score | 51 flights, too few to score |
| 8 PM–9 PM | 71.1% on time160 flights | 78.2% on time149 flights | 71.7% on time150 flights | 74.2% on time156 flights | 66.9% on time158 flights | 78.9% on time132 flights | 73.2% on time161 flights |
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 87.3% on time from 420 flights
- 6 AM: 86.6% on time from 1,709 flights
- 7 AM: 81.2% on time from 1,884 flights
- 8 AM: 80.4% on time from 1,175 flights
- 9 AM: 83.0% on time from 1,562 flights
- 10 AM: 86.7% on time from 680 flights
- 11 AM: 88.1% on time from 1,190 flights
- 12 PM: 78.7% on time from 1,388 flights
- 1 PM: 75.7% on time from 709 flights
- 2 PM: 81.0% on time from 893 flights
- 3 PM: 73.6% on time from 525 flights
- 4 PM: 75.0% on time from 1,000 flights
- 5 PM: 65.8% on time from 1,232 flights
- 6 PM: 57.8% on time from 1,506 flights
- 7 PM: 64.6% on time from 324 flights
- 8 PM: 73.3% on time from 1,066 flights
- 9 PM: 74.3% on time from 149 flights
- 10 PM to 11 PM: too few flights to score
Why DTW → ORD runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DTW → ORD. Only delays of 15 minutes or more are attributed.
How this route holds up in bad weather
July 2023 – July 2026
The harder-hit end is ORD, where the flight lands. Its figure counts departures from ORD, so it says more about how that airport copes than about this route. Bad weather cancels 5.5 times the normal rate at ORD against 2.3 times at DTW. Cancelled in bad weather against normal hours: DTW 2.5% against 1.1%, ORD 6.5% against 1.2%. Flights that did leave ORD in bad weather arrived on time 55.7% of the time, against 77.1% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | DTW | ORD |
|---|---|---|
| Cancelled in bad weather | 2.5% | 6.5% |
| Cancelled in normal hours | 1.1% | 1.2% |
| Arrived on time, bad weather | 66.5% | 55.7% |
| Arrived on time, normal hours | 81.6% | 77.1% |
| Departures in bad weather | 53,809 | 104,455 |
Of the carriers on this route, Delta Air Lines (1.6% cancelled against 3.3% for the other carriers at DTW) cancelled the fewest departures from DTW in bad weather and SkyWest Airlines (3.7% cancelled against 2.3% for the other carriers at DTW) the most. One more carrier flies this route but has too few bad-weather departures from DTW to compare.
This route’s airlines in bad weather at DTW
All departures from DTW| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| Delta Air Lines | 25,101 | 1.6%below the others | 3.3% |
| United Airlines | 1,025 | 1.4%below the others | 2.5% |
| American Airlines | 2,327 | 3.1%above the others | 2.4% |
| Republic Airways | 2,294 | 3.8%above the others | 2.6% |
| SkyWest Airlines | 11,156 | 3.7%above the others | 2.3% |
These are airport figures, not route figures: every scheduled departure from DTW and ORD, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from DTW on every route.
Weather source and limits. In full: DTW (airlines), ORD, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| SkyWest Airlines | 6,835 | 78.8% | 2.00% | -7 min | 9.2% |
| Delta Air Lines | 4,598 | 77.8% | 1.26% | -6 min | 9.1% |
| Envoy Air | 2,065 | 78.3% | 3.20% | -7 min | 8.3% |
| United Airlines | 1,881 | 70.9% | 1.33% | 0 min | 8.0% |
| Republic Airways | 1,274 | 85.2% | 2.51% | -12 min | 7.2% |
| American Airlines | 569 | 69.5% | 2.99% | -3 min | 16.7% |
SkyWest Airlines flew 39.7% of the 17,222 flights listed. Envoy Air cancelled 3.20% of its flights here against 1.26% for Delta Air Lines.
Republic Airways arrived on time 15.7 percentage points more often than American Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
OO4754 (6:00 AM) arrived on time 88.7% of the time, 21.4 points more often than UA426 (9:00 AM) at 67.3%.
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Friday the least, a gap of 6.1 percentage points.
By month
- Jan: 67.3%
- Feb: 79.5%
- Mar: 75.0%
- Apr: 79.8%
- May: 80.6%
- Jun: 77.5%
- Jul: 73.0%
- Aug: 76.7%
- Sep: 84.1%
- Oct: 83.8%
- Nov: 80.8%
- Dec: 73.1%
January is historically the weakest month and September the strongest, a spread of 16.8 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 75.1% from 392 flights
- August 2023: 80.5% from 405 flights
- September 2023: 82.4% from 413 flights
- October 2023: 88.5% from 445 flights
- November 2023: 86.8% from 418 flights
- December 2023: 87.0% from 400 flights
- January 2024: 65.6% from 353 flights
- February 2024: 92.1% from 381 flights
- March 2024: 83.8% from 450 flights
- April 2024: 81.6% from 464 flights
- May 2024: 78.2% from 485 flights
- June 2024: 79.3% from 466 flights
- July 2024: 75.4% from 472 flights
- August 2024: 74.9% from 532 flights
- September 2024: 88.4% from 517 flights
- October 2024: 87.7% from 552 flights
- November 2024: 84.2% from 457 flights
- December 2024: 77.3% from 429 flights
- January 2025: 76.5% from 423 flights
- February 2025: 72.0% from 389 flights
- March 2025: 81.1% from 493 flights
- April 2025: 81.6% from 532 flights
- May 2025: 83.9% from 531 flights
- June 2025: 74.2% from 526 flights
- July 2025: 67.7% from 536 flights
- August 2025: 75.5% from 501 flights
- September 2025: 80.8% from 481 flights
- October 2025: 75.7% from 519 flights
- November 2025: 71.6% from 472 flights
- December 2025: 55.0% from 420 flights
- January 2026: 58.9% from 407 flights
- February 2026: 75.2% from 443 flights
- March 2026: 59.8% from 488 flights
- April 2026: 76.6% from 568 flights
- May 2026: 79.6% from 600 flights
- June 2026: 79.2% from 524 flights
- July 2026: 74.6% from 533 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 72.5% against 79.3% in the 12 months before — declining by 6.8 percentage points.
Data and methodology
Calculated by FlyerIntel from 17,417 DTW → ORD flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed