Skip to content
WanderNerd
Check a flight

Route Reliability

MDT → Chicago

MDT–ORD · 594 miles · MDT Airport to Chicago O'Hare International Airport

70
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
13 min
Average arrival delay
2.6%
Cancelled
2,597
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines77%1,111 flights
  2. 2.United Airlines76%1,486 flights

What the data says

Morning-you made the right choice.

MDT–ORD flights departing between 3–6 AM arrived on time 93% of the time, versus 60% between 6–9 PM.

Sunday scaries are real for this one.

MDT–ORD flights arrived on time 80% of the time on Saturdays. On Sundays: 72%.

Not much between American Airlines and United Airlines.

On this route they all land within 76% to 77% on time. Pick on schedule and price.

Ticking up lately.

MDT–ORD flights arrived on time 76% of the time over the last three months in the data, compared with 71% 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
  • Mon76%(376 flights)
  • Tue78%(347 flights)
  • Wed79%(345 flights)
  • Thu75%(368 flights)
  • Fri74%(371 flights)
  • Sat80%(335 flights)
  • Sun72%(375 flights)
On-time by departure window
  • 3–6 AM93%(118 flights)
  • 6–9 AM87%(823 flights)
  • 9 AM–12 PM78%(598 flights)
  • 12–3 PM72%(181 flights)
  • 3–6 PM63%(536 flights)
  • 6–9 PM60%(261 flights)
On-time trend by month
82%
May

Jun 78% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%207
July 202573%206
August 202583%192
September 202585%180
October 202578%227
November 202577%216
December 202559%207
January 202674%171
February 202680%181
March 202669%198
April 202677%268
May 202682%264

Keep nerding

Based on 2,597 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.