Best Time to Fly DLH to ORD: On-Time Stats by Hour & Airline
Duluth International → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
1,223 flights were scheduled from Duluth (DLH) to Chicago (ORD) in the last 12 months, and 68.8% of those that flew arrived on time, 8.8 points below the US average of 77.6%.
Among 2 airlines, Republic Airways led with 73.8% on time and SkyWest Airlines was last with 68.5%.
Over 24 months, Tuesday was the most reliable day (79% on time) and July the worst month (65%).
The cancellation rate was 4.5% (US average 1.8%).
DLH to ORD on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 73.8% | 77 min | 3.6% | 83 |
| SkyWest Airlines | 68.5% | 103 min | 4.6% | 1,140 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DLH to ORD
On-time arrival % by scheduled departure hour (local time), 2,329 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 28 | |
| 6am–7am | Limited data | 19 | |
| 7am–8am | 77.4% | 3.2% | 408 |
| 8am–9am | 87.4% | 1.2% | 321 |
| 9am–10am | 91.2% | 0.0% | 68 |
| 11am–12pm | 71.4% | 2.5% | 561 |
| 2pm–3pm | 61.1% | 2.7% | 37 |
| 3pm–4pm | 68.9% | 3.1% | 686 |
| 5pm–6pm | Limited data | 2 | |
| 6pm–7pm | 58.9% | 6.0% | 199 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DLH to ORD
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 76.5% | +1.0 pts | 10.3% | 39 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.4% | -0.0 pts | 5.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 66.1% | -9.3 pts | 3.3% | 450 |
| All other days | 75.5% | — | 2.5% | 1,780 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).