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

Chicago, IL (ORD) to Norfolk, VA (ORF) flight delay odds

Historically, 69.7% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,863 flights.

HISTORICAL ROUTE SIGNALVariable
69.7%arrived on time
19.8%30+ min late
2.6%cancelled
1,863scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.2%all scheduled flights
120+ minutes late4.0%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+12.2 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
Early morning27486.1%6.2%0.4%
Late morning49573.5%20.2%0.6%
Afternoon34973.9%15.5%2.0%
Evening70858.6%27.0%5.1%

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
Monday27365.2%20.5%5.1%
Tuesday26876.1%12.7%1.5%
Wednesday26373.0%19.8%1.1%
Thursday26769.7%18.7%3.4%
Friday26765.5%22.8%1.9%
Saturday25869.8%20.5%3.5%
Sunday26768.5%23.2%1.9%

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
United Airlines69065.7%23.3%1.7%
Republic Airways42876.2%15.9%1.4%
Envoy Air39781.4%11.3%2.0%
PSA Airlines18646.2%37.1%10.8%
SkyWest Airlines15667.9%14.7%1.9%
American Airlines666.7%33.3%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202515263.2%26.3%2.0%
August 202512675.4%14.3%3.2%
September 202514381.1%13.3%0.0%
October 202517080.6%10.6%0.0%
November 202514468.8%20.8%2.1%
December 202515752.9%35.0%1.9%
January 202610759.8%26.2%8.4%
February 202612561.6%27.2%0.0%
March 202615563.2%24.5%6.5%
April 202617368.8%17.9%5.2%
May 202621176.8%14.2%0.5%
June 202620076.0%13.5%3.5%

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.

Airline28.0%
Late aircraft48.2%
National airspace16.3%
Weather7.5%
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.