Flight Reliability
UA 840 · United Airlines
Chicago → Anchorage (ORD–ANC)82% of its flights flew this route. The rest (PWM–ORD) are included in these numbers.
90
Nerd Approved
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0%
- Cancelled
- 8 min early
- Median arrival delay
Based on 39 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
UA 840 departing between 9 AM–12 PM arrived on time 88% of the time, versus 76% between 12–3 PM.
Better than the ORD–ANC route average.
UA 840 arrived on time 82% of the time, versus 75% across the ORD–ANC route.
A bit ahead of the United Airlines network.
UA 840 arrived on time 82% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(4 flights)
- Wed—(4 flights)
- Thu—(6 flights)
- Fri—(6 flights)
- Sat—(8 flights)
- Sun—(6 flights)
- 6–9 AM—(2 flights)
- 9 AM–12 PM88%(16 flights)
- 12–3 PM76%(21 flights)
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 39
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 39 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.