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Flight Reliability

UA 1830 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1830 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

85%
Arrive within 15 minutes
5 min
Average arrival delay
1.6%
Cancelled
5 min early
Median arrival delay

Based on 491 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(77 flights)
  • Tue87%(68 flights)
  • Wed86%(70 flights)
  • Thu91%(78 flights)
  • Fri82%(77 flights)
  • Sat80%(46 flights)
  • Sun80%(66 flights)
On-time by departure window
  • 3–6 AM100%(37 flights)
  • 6–9 AM90%(160 flights)
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM82%(259 flights)
  • 3–6 PM—(1 flights)
  • 9 PM–12 AM59%(17 flights)
On-time trend by month
72%
May

Jun 94% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%51
July 202591%54
August 202593%42
September 202597%35
October 202587%53
November 202584%49
December 202561%28
January 202661%31
February 202692%52
March 202684%32
April 202673%26
May 202672%29
Departures on time
84%
Diverted
0.2%
Flights flown
482
Months covered
12

Keep nerding

Based on 491 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.