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Route Reliability

Knoxville → Chicago

TYS–ORD · 475 miles · McGhee Tyson Airport to Chicago O'Hare International Airport

52
A Little Dicey
WanderNerd Reliability Score
69%
Arrive within 15 minutes
27 min
Average arrival delay
3.7%
Cancelled
2,731
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines74%1,454 flights
  2. 2.American Airlines64%1,277 flights

What the data says

Morning flights do better here.

TYS–ORD flights departing between 9 AM–12 PM arrived on time 79% of the time, versus 53% between 6–9 PM.

Monday is the weak spot.

TYS–ORD flights arrived on time 73% of the time on Saturdays. On Mondays: 66%.

United Airlines runs this route best.

United Airlines arrived on time 74% of the time on this route; American Airlines managed 64%.

Keep a backup plan handy.

This route was cancelled 3.7% 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
  • Mon66%(383 flights)
  • Tue70%(370 flights)
  • Wed69%(374 flights)
  • Thu70%(375 flights)
  • Fri67%(386 flights)
  • Sat73%(338 flights)
  • Sun72%(389 flights)
On-time by departure window
  • 3–6 AM—(4 flights)
  • 6–9 AM78%(736 flights)
  • 9 AM–12 PM79%(474 flights)
  • 12–3 PM70%(602 flights)
  • 3–6 PM56%(654 flights)
  • 6–9 PM53%(145 flights)
On-time trend by month
80%
May

Jun 70% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%235
July 202562%235
August 202575%232
September 202578%225
October 202569%271
November 202564%241
December 202553%207
January 202666%160
February 202673%168
March 202663%187
April 202679%213
May 202680%241

Same trip, other airports

Keep nerding

Based on 2,731 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.