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Flight Reliability

UA 5215 · United Airlines

Chicago → LNK (ORD–LNK)94% of its flights flew this route. The rest (ORD–GSP) are included in these numbers.

72
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
13 min
Average arrival delay
1.9%
Cancelled
2 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 79% of the time, against 73% between 6–9 AM.

Sunday scaries are real for this one.

UA 5215 arrived on time 86% of the time on Thursdays and just 64% on Sundays. That gap is worth planning around.

Better than the ORD–LNK route average.

UA 5215 arrived on time 76% of the time, versus 64% across the ORD–LNK route.

A bit behind the United Airlines network.

UA 5215 arrived on time 76% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue84%(50 flights)
  • Wed76%(50 flights)
  • Thu86%(49 flights)
  • Fri77%(51 flights)
  • Sat74%(50 flights)
  • Sun64%(53 flights)
On-time by departure window
  • 6–9 AM73%(198 flights)
  • 9 AM–12 PM79%(155 flights)
On-time trend by month
74%
May

Jun 87% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202577%31
August 202587%30
September 202586%28
October 202561%31
November 202586%28
December 202557%30
January 202677%30
February 202678%27
March 202676%29
April 202664%28
May 202674%31
Departures on time
81%
Diverted
0.6%
Flights flown
353
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.