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Flight Reliability

UA 1888 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1888 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

78%
Arrive within 15 minutes
14 min
Average arrival delay
2.0%
Cancelled
8 min early
Median arrival delay

Based on 398 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(58 flights)
  • Tue83%(59 flights)
  • Wed76%(55 flights)
  • Thu72%(58 flights)
  • Fri80%(60 flights)
  • Sat89%(35 flights)
  • Sun73%(63 flights)
On-time by departure window
  • 6–9 AM95%(59 flights)
  • 9 AM–12 PM100%(23 flights)
  • 12–3 PM85%(91 flights)
  • 3–6 PM66%(190 flights)
  • 6–9 PM80%(25 flights)
On-time trend by month
62%
May

Jun 67% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%24
July 202540%25
August 202572%25
September 202586%29
October 202582%27
November 202568%25
December 202577%26
January 202693%57
February 202684%38
March 202694%54
April 202669%29
May 202662%29
Departures on time
80%
Diverted
0.5%
Flights flown
388
Months covered
12

Keep nerding

Based on 398 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.