Route Reliability
Chicago → ACK
ORD–ACK · 924 miles · Chicago O'Hare International Airport to ACK Airport
Not enough history
Only 27 flights in the data. We don't publish a score on samples this small.
- 85%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 0%
- Cancelled
- 27
- Flights in the data
Data through May 2026.
Airlines on this route
- United Airlines81% on time · 16 flights
- American Airlines90% on time · 11 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
The 12–3 PM departure wins.
ORD–ACK flights departing between 12–3 PM arrived on time 90% of the time, versus 81% between 9 AM–12 PM.
Flights on this route
The breakdown
- Mon—(0 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu—(0 flights)
- Fri—(0 flights)
- Sat94%(18 flights)
- Sun—(8 flights)
- 9 AM–12 PM81%(16 flights)
- 12–3 PM90%(10 flights)
Keep nerding
Based on 27 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.