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Flight Reliability

UA 1378 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1378 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
10 min
Average arrival delay
0.8%
Cancelled
1 min
Median arrival delay

Based on 374 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(53 flights)
  • Tue87%(53 flights)
  • Wed77%(53 flights)
  • Thu77%(53 flights)
  • Fri77%(53 flights)
  • Sat79%(53 flights)
  • Sun69%(52 flights)
On-time by departure window
  • 6–9 AM62%(85 flights)
  • 9 AM–12 PM83%(285 flights)
On-time trend by month
98%
May

Jun 59% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202560%30
August 202563%30
September 2025100%30
October 202594%31
November 202597%30
December 202561%31
January 202652%31
February 202682%27
March 202668%31
April 202697%30
May 202698%40
Departures on time
86%
Diverted
0.3%
Flights flown
370
Months covered
12

Keep nerding

Based on 374 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.