Historical on-time performance
Chicago to Duluth
Flights on ORD–DLH arrive on time 62% of the time over the last 12 months.
based on 1,220 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-time71%Medianon timep9030 minCancel6.5%Flights77
- SkyWest AirlinesOn-time61%Medianon timep9080 minCancel3.2%Flights1,143
Why flights run late
Delay causes
- Airline36%
- Weather8%
- Air traffic (NAS)21%
- Late aircraft34%
- Security0%
Most delay minutes here are attributed to Airline.
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 42 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 ORD → DLH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 59% to 76% on time.
- Middays76% on time · p90 45 min · 1,066 flights
- Mornings73% on time · p90 45 min · 753 flights
- Evenings65% on time · p90 90 min · 477 flights
- Overnights63% on time · p90 80 min · 636 flights
- Afternoons59% on time · p90 95 min · 276 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 74% on time.
- Thursdays74% on time · p90 55 min · 474 flights
- Tuesdays74% on time · p90 50 min · 450 flights
- Wednesdays70% on time · p90 60 min · 457 flights
- Mondays69% on time · p90 70 min · 473 flights
- Saturdays69% on time · p90 55 min · 419 flights
- Sundays68% on time · p90 70 min · 458 flights
- Fridays65% on time · p90 65 min · 477 flights
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