BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MDW→MHT

Chicago, IL (MDW) to Manchester, NH (MHT) flight delay odds

Historically, 73.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 517 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
73.5%arrived on time
13.2%30+ min late
1.5%cancelled
517scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.4%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+9.5 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Late morning5986.4%6.8%0.0%
Afternoon9679.2%9.4%0.0%
Evening32767.3%16.5%2.1%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday8169.1%17.3%1.2%
Tuesday7580.0%10.7%0.0%
Wednesday7279.2%9.7%0.0%
Thursday8274.4%8.5%2.4%
Friday8072.5%12.5%2.5%
Saturday5275.0%15.4%1.9%
Sunday7565.3%18.7%2.7%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines51773.5%13.2%1.5%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20255773.7%10.5%5.3%
August 20255680.4%10.7%1.8%
September 20255687.5%8.9%0.0%
October 20255780.7%8.8%0.0%
November 20252850.0%17.9%7.1%
December 20252962.1%17.2%0.0%
January 20262774.1%22.2%0.0%
February 20262777.8%14.8%0.0%
March 20263060.0%23.3%3.3%
April 20264379.1%7.0%0.0%
May 20264963.3%16.3%0.0%
June 20265872.4%13.8%1.7%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline33.7%
Late aircraft59.4%
National airspace5.7%
Weather1.2%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.