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Route Reliability

JST → Chicago

JST–ORD · 487 miles · JST Airport to Chicago O'Hare International Airport

35
Bring Snacks
WanderNerd Reliability Score
68%
Arrive within 15 minutes
46 min
Average arrival delay
5.2%
Cancelled
362
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 68% of the time across 362 flights. No comparison to make.

What the data says

Thursdays have been rough.

JST–ORD flights arrived on time 79% of the time on Saturdays and just 61% on Thursdays. That gap is worth planning around.

Keep a backup plan handy.

This route was cancelled 5.2% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

JST–ORD flights arrived on time 65% of the time over the last three months in the data, compared with 56% in the three months before that.

The breakdown

On-time by weekday
  • Mon61%(49 flights)
  • Tue74%(49 flights)
  • Wed67%(49 flights)
  • Thu61%(46 flights)
  • Fri71%(51 flights)
  • Sat79%(48 flights)
  • Sun65%(49 flights)
On-time by departure window
  • 9 AM–12 PM—(3 flights)
  • 12–3 PM68%(338 flights)
On-time trend by month
77%
May

Jun 67% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202561%31
August 202577%30
September 202587%30
October 202597%31
November 202559%27
December 202546%24
January 202663%27
February 202659%27
March 202662%26
April 202656%27
May 202677%31

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.