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Flight Reliability

UA 218 · United Airlines

Honolulu → Chicago (HNL–ORD)100% of its flights flew this route. The rest (BOS–SJC) are included in these numbers.

93
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
3 min early
Average arrival delay
1.1%
Cancelled
14 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 92% of the time, against 86% between 6–9 PM.

Sunday scaries are real for this one.

UA 218 arrived on time 96% of the time on Mondays. On Sundays: 83%.

A bit ahead of the HNL–ORD route.

UA 218 arrived on time 90% of the time, versus 86% across the HNL–ORD route.

Better than the United Airlines network average.

UA 218 arrived on time 90% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon96%(51 flights)
  • Tue89%(52 flights)
  • Wed94%(52 flights)
  • Thu94%(52 flights)
  • Fri84%(50 flights)
  • Sat88%(51 flights)
  • Sun83%(53 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 3–6 PM92%(237 flights)
  • 6–9 PM86%(123 flights)
On-time trend by month
84%
May

Jun 97% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202593%30
August 2025100%31
September 202593%30
October 202593%30
November 202583%30
December 202587%30
January 202697%30
February 202686%28
March 202671%31
April 202693%30
May 202684%31
Departures on time
89%
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.