Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 5218 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5218 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

74%
Arrive within 15 minutes
23 min
Average arrival delay
1.0%
Cancelled
7 min early
Median arrival delay

Based on 312 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(47 flights)
  • Tue81%(43 flights)
  • Wed73%(41 flights)
  • Thu82%(44 flights)
  • Fri67%(48 flights)
  • Sat75%(32 flights)
  • Sun78%(50 flights)
On-time by departure window
  • 6–9 AM83%(36 flights)
  • 9 AM–12 PM—(6 flights)
  • 3–6 PM59%(56 flights)
  • 6–9 PM77%(207 flights)
On-time trend by month
73%
May

Jun 90% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202583%30
August 202568%22
September 202565%26
October 202580%20
November 202592%25
December 202580%30
January 202680%15
February 202657%21
March 202673%30
April 202650%30
May 202673%26
Departures on time
78%
Diverted
1.3%
Flights flown
305
Months covered
12

Keep nerding

Based on 312 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.