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Flight Reliability

UA 5489 · United Airlines

SBN → Chicago (SBN–ORD)97% of its flights flew this route. The rest (MCI–LAX, GSP–ORD) are included in these numbers.

51
A Little Dicey
WanderNerd Reliability Score
66%
Arrive within 15 minutes
28 min
Average arrival delay
3.6%
Cancelled
6 min
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

UA 5489 departing between 3–6 PM arrived on time 92% of the time, versus 65% between 12–3 PM.

Wednesdays have been rough.

UA 5489 arrived on time 79% of the time on Tuesdays and just 55% on Wednesdays. That gap is worth planning around.

Lagging the United Airlines network.

UA 5489 arrived on time 66% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 5489 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon66%(50 flights)
  • Tue79%(52 flights)
  • Wed55%(51 flights)
  • Thu75%(51 flights)
  • Fri67%(49 flights)
  • Sat62%(50 flights)
  • Sun59%(49 flights)
On-time by departure window
  • 12–3 PM65%(340 flights)
  • 3–6 PM92%(12 flights)
On-time trend by month
74%
May

Jun 77% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202553%30
August 202583%30
September 202583%29
October 202577%31
November 202557%28
December 202540%30
January 202657%28
February 202668%28
March 202668%28
April 202655%29
May 202674%31
Departures on time
68%
Diverted
0%
Flights flown
352
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.