Historical on-time performance
Duluth to Chicago
Flights on DLH–ORD arrive on time 66% of the time over the last 12 months.
based on 1,221 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Republic AirwaysOn-time72%Medianon timep9060 minCancel3.8%Flights78
- SkyWest AirlinesOn-time66%Medianon timep9090 minCancel3.7%Flights1,143
Why flights run late
Delay causes
- Airline29%
- Weather16%
- Air traffic (NAS)24%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather93%
- Air traffic (NAS)7%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 45 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DLH → ORD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 30 min · 1,208 flights
- Middays73% on time · p90 65 min · 753 flights
- Afternoons72% on time · p90 75 min · 1,059 flights
- Evenings58% on time · p90 110 min · 187 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 78% on time.
- Thursdays78% on time · p90 50 min · 470 flights
- Tuesdays78% on time · p90 45 min · 454 flights
- Mondays77% on time · p90 70 min · 472 flights
- Wednesdays76% on time · p90 50 min · 457 flights
- Fridays75% on time · p90 65 min · 475 flights
- Saturdays74% on time · p90 70 min · 424 flights
- Sundays73% on time · p90 80 min · 455 flights
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