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Flight Reliability

UA 2420 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2420 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
1 min early
Average arrival delay
0.4%
Cancelled
9 min early
Median arrival delay

Based on 532 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(76 flights)
  • Tue87%(69 flights)
  • Wed83%(75 flights)
  • Thu85%(78 flights)
  • Fri87%(76 flights)
  • Sat78%(77 flights)
  • Sun87%(78 flights)
On-time by departure window
  • 3–6 AM97%(256 flights)
  • 6–9 AM33%(21 flights)
  • 9 AM–12 PM79%(178 flights)
  • 12–3 PM89%(52 flights)
  • 6–9 PM46%(22 flights)
On-time trend by month
52%
May

Jun 92% → May 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%60
July 202581%62
August 202568%31
September 202594%36
October 202597%62
November 202587%60
December 202594%46
January 202697%36
February 202693%28
March 202671%51
April 202689%26
May 202652%31
Departures on time
90%
Diverted
0.2%
Flights flown
529
Months covered
12

Keep nerding

Based on 532 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.