Route Reliability
Chicago → DLH
ORD–DLH · 397 miles · Chicago O'Hare International Airport to DLH Airport
- 66%
- Arrive within 15 minutes
- 23 min
- Average arrival delay
- 3.5%
- Cancelled
- 1,230
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 66% of the time across 1,230 flights. No comparison to make.
What the data says
Morning flights do better here.
ORD–DLH flights departing between 9 AM–12 PM arrived on time 83% of the time, versus 58% between 3–6 PM.
Wednesday is the weak spot.
ORD–DLH flights arrived on time 72% of the time on Saturdays. On Wednesdays: 57%.
Keep a backup plan handy.
This route was cancelled 3.5% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
ORD–DLH flights arrived on time 64% of the time over the last three months in the data, compared with 53% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon64%(171 flights)
- Tue70%(161 flights)
- Wed57%(168 flights)
- Thu70%(175 flights)
- Fri64%(173 flights)
- Sat72%(156 flights)
- Sun63%(177 flights)
- 6–9 AM71%(205 flights)
- 9 AM–12 PM83%(77 flights)
- 12–3 PM70%(355 flights)
- 3–6 PM58%(177 flights)
- 6–9 PM58%(326 flights)
- 9 PM–12 AM66%(41 flights)
Jun 71% → May 68% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 108 |
| July 2025 | 70% | 110 |
| August 2025 | 70% | 104 |
| September 2025 | 70% | 117 |
| October 2025 | 75% | 114 |
| November 2025 | 58% | 85 |
| December 2025 | 41% | 58 |
| January 2026 | 51% | 61 |
| February 2026 | 66% | 70 |
| March 2026 | 56% | 97 |
| April 2026 | 68% | 124 |
| May 2026 | 68% | 133 |
Keep nerding
Based on 1,230 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.