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

Billings, MT (BIL) to Denver, CO (DEN) flight delay odds

Historically, 81.1% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,782 flights.

HISTORICAL ROUTE SIGNALLower disruption
81.1%arrived on time
12.5%30+ min late
0.8%cancelled
1,782scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.1%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+1.8 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 morning58492.6%4.8%0.0%
Late morning36389.3%6.3%1.1%
Afternoon51571.1%20.0%0.0%
Evening32067.2%21.6%3.4%

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
Monday25878.3%14.0%0.8%
Tuesday25783.3%12.8%1.2%
Wednesday25682.4%10.2%0.8%
Thursday25379.4%13.8%0.8%
Friday25678.5%14.5%1.2%
Saturday24581.2%13.5%0.8%
Sunday25784.8%8.9%0.4%

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
SkyWest Airlines1,05280.5%13.5%1.4%
United Airlines73082.1%11.1%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202518367.8%23.5%1.6%
August 202518167.4%24.3%0.6%
September 202516780.2%13.8%0.0%
October 202515586.5%6.5%0.0%
November 202514684.2%7.5%2.7%
December 202512579.2%12.8%2.4%
January 202612485.5%6.5%0.8%
February 202611181.1%12.6%0.9%
March 202612482.3%12.1%0.8%
April 202612793.7%4.7%0.0%
May 202616389.0%9.2%0.0%
June 202617684.1%10.2%0.6%

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.

Airline27.4%
Late aircraft33.0%
National airspace31.7%
Weather7.8%
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.