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Flight Reliability

UA 1668 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1668 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
7 min
Average arrival delay
0.5%
Cancelled
8 min early
Median arrival delay

Based on 621 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(94 flights)
  • Tue86%(76 flights)
  • Wed82%(89 flights)
  • Thu78%(94 flights)
  • Fri85%(94 flights)
  • Sat82%(77 flights)
  • Sun73%(90 flights)
On-time by departure window
  • 3–6 AM84%(37 flights)
  • 6–9 AM53%(83 flights)
  • 9 AM–12 PM89%(197 flights)
  • 12–3 PM86%(272 flights)
  • 6–9 PM60%(25 flights)
On-time trend by month
45%
May

Jun 58% → May 45% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%33
July 202575%40
August 202590%50
September 202588%56
October 202588%59
November 202578%59
December 202588%60
January 202689%56
February 202686%50
March 202689%62
April 202672%58
May 202645%31
Departures on time
80%
Diverted
0.6%
Flights flown
614
Months covered
12

Keep nerding

Based on 621 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.