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Flight Reliability

UA 1770 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1770 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

73%
Arrive within 15 minutes
13 min
Average arrival delay
1.2%
Cancelled
3 min early
Median arrival delay

Based on 401 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(55 flights)
  • Tue70%(43 flights)
  • Wed82%(60 flights)
  • Thu67%(67 flights)
  • Fri73%(66 flights)
  • Sat73%(40 flights)
  • Sun72%(65 flights)
On-time by departure window
  • 6–9 AM92%(37 flights)
  • 12–3 PM92%(26 flights)
  • 3–6 PM66%(250 flights)
  • 9 PM–12 AM78%(83 flights)
On-time trend by month
74%
May

Jun 73% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%44
July 202535%29
August 202568%31
September 202557%30
October 202587%31
November 202593%30
December 202566%29
January 202677%26
February 202684%37
March 202668%44
April 202695%19
May 202674%46
Departures on time
76%
Diverted
0%
Flights flown
396
Months covered
12

Keep nerding

Based on 401 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.