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Route Reliability

DEC → Chicago

DEC–ORD · 156 miles · DEC Airport to Chicago O'Hare International Airport

48
Bring Snacks
WanderNerd Reliability Score
70%
Arrive within 15 minutes
28 min
Average arrival delay
4.8%
Cancelled
627
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 70% of the time across 627 flights. No comparison to make.

What the data says

Morning flights do better here.

DEC–ORD flights departing between 9 AM–12 PM arrived on time 83% of the time, versus 57% between 6–9 PM.

Saturday is the weak spot.

DEC–ORD flights arrived on time 78% of the time on Mondays. On Saturdays: 65%.

Keep a backup plan handy.

This route was cancelled 4.8% of the time. Typical for U.S. flights is around 1–2%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon78%(99 flights)
  • Tue70%(53 flights)
  • Wed72%(100 flights)
  • Thu70%(96 flights)
  • Fri65%(100 flights)
  • Sat65%(51 flights)
  • Sun65%(97 flights)
On-time by departure window
  • 9 AM–12 PM83%(293 flights)
  • 6–9 PM57%(303 flights)
On-time trend by month
65%
May

Jun 69% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%52
July 202574%49
August 202573%51
September 202577%51
October 202563%54
November 202564%47
December 202566%50
January 202662%50
February 202679%48
March 202669%45
April 202675%47
May 202665%52

Keep nerding

Based on 627 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.