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WanderNerd

Flight Reliability

UA 2340 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2340 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
6 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 625 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(93 flights)
  • Tue85%(84 flights)
  • Wed85%(91 flights)
  • Thu80%(90 flights)
  • Fri72%(92 flights)
  • Sat85%(80 flights)
  • Sun72%(90 flights)
On-time by departure window
  • 6–9 AM87%(197 flights)
  • 9 AM–12 PM92%(101 flights)
  • 12–3 PM79%(111 flights)
  • 3–6 PM67%(66 flights)
  • 6–9 PM58%(116 flights)
  • 9 PM–12 AM69%(29 flights)
On-time trend by month
73%
May

Jun 60% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202561%31
August 202548%31
September 202560%30
October 202567%36
November 202573%51
December 202580%59
January 202690%86
February 202691%80
March 202685%86
April 202692%49
May 202673%51
Departures on time
82%
Diverted
0.2%
Flights flown
620
Months covered
12

Based on 625 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.