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Flight Reliability

UA 5870 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5870 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

67%
Arrive within 15 minutes
20 min
Average arrival delay
3.5%
Cancelled
1 min
Median arrival delay

Based on 57 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon(7 flights)
  • Tue(4 flights)
  • Wed40%(10 flights)
  • Thu100%(10 flights)
  • Fri(8 flights)
  • Sat(4 flights)
  • Sun75%(12 flights)
On-time by departure window
  • 3–6 AM(4 flights)
  • 9 AM–12 PM76%(37 flights)
  • 12–3 PM46%(13 flights)
  • 6–9 PM(1 flights)
Departures on time
80%
Diverted
0%
Flights flown
55
Months covered
7

Based on 57 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.