ORD to DLH flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Duluth International Airport · 397 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or DLH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Duluth (DLH) arrived on time 65% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.4% were cancelled, and 14% arrived an hour or more late.
- Republic Airways was the most punctual airline here (78% on time); SkyWest Airlines was the least (64%).
- Departures scheduled around 3pm did best (74% on time); around 4pm did worst (57%).
- Saturday was the most reliable day to fly (72% on time) and Wednesday the least (59%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (40%).
Which airline is most on time from ORD to DLH?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 78% | 7.2% | 22 min | 5.3% | 83 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 64% | 4.2% | 29 min | 14.2% | 1,140 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am71%275 flights
- 9am67%18 flights
- 12pm67%365 flights
- 3pm74%64 flights
- 4pm57%115 flights
- 8pm57%268 flights
- 9pm64%91 flights
- 10pm62%16 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday62%6.7% cancelled
- Tuesday67%2.9% cancelled
- Wednesday59%2.9% cancelled
- Thursday68%4.4% cancelled
- Friday61%4.9% cancelled
- Saturday72%5.6% cancelled
- Sunday65%3.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)40%
- Late-arriving aircraft32%
- Air traffic control & airport congestion18%
- Extreme weather10%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather83%
- Air traffic control & airport congestion15%
- Airline (crew, maintenance, cleaning, fueling)2%
- Security0%
ORD to DLH: common questions
- How often are ORD to DLH flights on time?
- 65% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Chicago to Duluth cancelled?
- 4.4% of scheduled flights were cancelled (54 of 1,223).
- How long are typical delays?
- Across all flights the average arrival delay was 29 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 13.7% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 36 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DLH to ORD — 69% on time
More flights from Chicago
More flights to Duluth
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → DLH, nonstop flights by US airlines that report to the DOT. How we calculate this.