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Flight Reliability

UA 2408 · United Airlines

Denver → Washington (DEN–IAD)99% of its flights flew this route. The rest (SFO–BZN) are included in these numbers.

69
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
19 min
Average arrival delay
1.1%
Cancelled
1 min
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 2408 departing between 6–9 PM arrived on time 77% of the time, versus 69% between 3–6 PM.

Thursdays have been rough.

UA 2408 arrived on time 75% of the time on Wednesdays and just 60% on Thursdays. That gap is worth planning around.

Lagging the DEN–IAD route.

UA 2408 arrived on time 70% of the time, versus 80% across the DEN–IAD route.

Lagging the United Airlines network.

UA 2408 arrived on time 70% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon69%(52 flights)
  • Tue73%(52 flights)
  • Wed75%(52 flights)
  • Thu60%(52 flights)
  • Fri73%(51 flights)
  • Sat75%(51 flights)
  • Sun65%(51 flights)
On-time by departure window
  • 9 AM–12 PM—(2 flights)
  • 3–6 PM69%(329 flights)
  • 6–9 PM77%(30 flights)
On-time trend by month
71%
May

Jun 59% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202527%30
August 202555%31
September 202553%30
October 202581%31
November 202580%30
December 202581%31
January 202690%30
February 202679%28
March 202673%30
April 202690%30
May 202671%31
Departures on time
75%
Diverted
0%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.