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Route Reliability

Chicago → LEX

ORD–LEX · 323 miles · Chicago O'Hare International Airport to LEX Airport

57
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
24 min
Average arrival delay
2.6%
Cancelled
2,576
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines68%1,550 flights
  2. 2.American Airlines67%1,026 flights

What the data says

Morning-you made the right choice.

ORD–LEX flights departing between 9 AM–12 PM arrived on time 76% of the time, versus 54% between 3–6 PM.

Skip Monday if you can.

ORD–LEX flights arrived on time 72% of the time on Tuesdays. On Mondays: 64%.

Not much between United Airlines and American Airlines.

On this route they all land within 67% to 68% on time. Pick on schedule and price.

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
  • Mon64%(361 flights)
  • Tue72%(363 flights)
  • Wed70%(355 flights)
  • Thu68%(365 flights)
  • Fri68%(365 flights)
  • Sat67%(325 flights)
  • Sun65%(368 flights)
On-time by departure window
  • 6–9 AM75%(311 flights)
  • 9 AM–12 PM76%(385 flights)
  • 12–3 PM71%(542 flights)
  • 3–6 PM54%(434 flights)
  • 6–9 PM65%(484 flights)
  • 9 PM–12 AM68%(346 flights)
On-time trend by month
69%
May

Jun 62% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%209
July 202558%209
August 202574%206
September 202583%209
October 202574%241
November 202570%188
December 202555%178
January 202670%159
February 202666%175
March 202663%203
April 202667%245
May 202669%280

Keep nerding

Based on 2,576 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.