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Route Reliability

Chicago → GSO

ORD–GSO · 589 miles · Chicago O'Hare International Airport to GSO Airport

75
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
7 min
Average arrival delay
2.4%
Cancelled
1,723
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.American Airlines81%865 flights
  2. 2.United Airlines74%858 flights

What the data says

Morning-you made the right choice.

ORD–GSO flights departing between 9 AM–12 PM arrived on time 90% of the time, versus 69% between 3–6 PM.

Tuesday has been the better bet.

A small edge: 80% on time on Tuesdays against 75% on Sundays.

American Airlines runs this route best.

American Airlines arrived on time 81% of the time on this route; United Airlines managed 74%.

Trending in the right direction.

ORD–GSO flights arrived on time 75% of the time over the last three months in the data, compared with 67% in the three months before that.

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%(252 flights)
  • Tue80%(223 flights)
  • Wed75%(231 flights)
  • Thu79%(254 flights)
  • Fri77%(250 flights)
  • Sat79%(215 flights)
  • Sun75%(254 flights)
On-time by departure window
  • 6–9 AM86%(382 flights)
  • 9 AM–12 PM90%(20 flights)
  • 12–3 PM81%(377 flights)
  • 3–6 PM69%(451 flights)
  • 6–9 PM75%(431 flights)
  • 9 PM–12 AM78%(18 flights)
On-time trend by month
83%
May

Jun 79% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%115
July 202573%116
August 202586%117
September 202592%149
October 202586%173
November 202583%127
December 202562%138
January 202672%106
February 202668%121
March 202669%147
April 202671%174
May 202683%196

Keep nerding

Based on 1,723 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.