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Flight Reliability

UA 3627 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3627 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

81%
Arrive within 15 minutes
3 min
Average arrival delay
2.8%
Cancelled
10 min early
Median arrival delay

Based on 351 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(48 flights)
  • Tue80%(49 flights)
  • Wed80%(45 flights)
  • Thu84%(49 flights)
  • Fri84%(49 flights)
  • Sat76%(49 flights)
  • Sun82%(51 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM86%(157 flights)
  • 12–3 PM81%(94 flights)
  • 3–6 PM63%(35 flights)
  • 6–9 PM—(3 flights)
  • 9 PM–12 AM78%(49 flights)
On-time trend by month
85%
May

Jun 100% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%29
July 202557%30
August 202590%31
September 202590%30
October 202593%30
November 202568%28
December 202557%28
January 202689%27
February 202688%24
March 202679%29
April 202670%27
May 202685%27
Departures on time
84%
Diverted
0.3%
Flights flown
340
Months covered
12

Keep nerding

Based on 351 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.