Duluth (DLH) to Chicago (ORD): On-Time Performance
Data through July 2026
When you fly DLH to ORD matters as much as anything else about the booking: the route swung from 91% on-time in October 2024 to just 53% in January 2026. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (79% vs 58%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 2.8%
- Flights/day
- 3.4
- last 12 months
- Duration
- 1h 54m
- scheduled
- Distance
- 397 mi
Best airline from DLH to ORD
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 90% | 9 min | 0.9% | 444 |
| SkyWest Airlines | 71% | 31 min | 3.2% | 1,979 |
Monthly on-time trend
Best time to fly from DLH to ORD
Aim for departures around 9 a.m. (91% on-time); avoid 6 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 26 min |
| Tuesdaybest | 79% | 19 min |
| Wednesday | 72% | 24 min |
| Thursday | 72% | 35 min |
| Friday | 72% | 28 min |
| Saturday | 76% | 26 min |
| Sunday | 72% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations32%
- National airspace system21%
- Weather13%
Frequently asked questions
- How often are flights from DLH to ORD delayed?
- 26% of DLH–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 27 minutes.
- Which airline is most reliable from DLH to ORD?
- Republic Airways has the best on-time record on this route at 90%, based on 444 flights. 2 airlines flew DLH–ORD frequently enough to compare in this period.
- What is the best time of day to fly from DLH to ORD?
- Departures around 9 a.m. have the best record (91% on-time), while departures around 6 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DLH to ORD?
- The scheduled DLH–ORD flight time averages 1h 54m over 397 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are DLH to ORD flights cancelled?
- 2.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DLH to ORD?
- January 2026 was the roughest month in this dataset, with only 53% of arrivals on time. The best was October 2024 at 91%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 2,423 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.