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

Chicago, IL (ORD) to Anchorage, AK (ANC) flight delay odds

Historically, 73.0% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 786 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
73.0%arrived on time
16.0%30+ min late
0.8%cancelled
786scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.3%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+5.5 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
Early morning6478.1%14.1%0.0%
Late morning20281.2%7.9%0.5%
Afternoon31567.0%19.4%1.3%
Evening13468.7%21.6%0.0%
Night7180.3%15.5%1.4%

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
Monday11274.1%14.3%1.8%
Tuesday11175.7%15.3%0.0%
Wednesday10766.4%22.4%0.0%
Thursday10977.1%13.8%0.9%
Friday11777.8%12.0%0.0%
Saturday11770.1%17.1%0.9%
Sunday11369.9%17.7%1.8%

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 Airlines43872.8%15.1%0.9%
Alaska Airlines21076.7%14.3%1.0%
American Airlines13868.1%21.7%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202515571.0%16.8%0.6%
August 202514379.7%14.0%0.7%
September 202510177.2%11.9%0.0%
October 20254770.2%17.0%0.0%
November 20252969.0%10.3%3.4%
December 20251533.3%26.7%0.0%
January 20265100.0%0.0%0.0%
March 20262759.3%37.0%3.7%
April 20263158.1%25.8%0.0%
May 20269275.0%15.2%1.1%
June 202614175.2%14.9%0.7%

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.

Airline26.9%
Late aircraft29.5%
National airspace35.2%
Weather7.4%
Security1.0%
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.