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

Billings, MT (BIL) to Salt Lake City, UT (SLC) flight delay odds

90.9% of 1,074 official scheduled BIL-to-SLC flights arrived on time; 5.6% arrived at least 30 minutes late and 0.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
90.9%arrived on time
5.6%30+ min late
0.7%cancelled
1,074scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.3%all scheduled flights
120+ minutes late1.8%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-5.4 mincompleted flights

Which departure time was most reliable for BIL to SLC?

Among qualifying BIL-to-SLC departure window results, Late morning had the highest on-time rate: 94.7% of 360 flights. Evening was lowest at 85.5% across 344 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36592.6%5.5%0.5%
Late morning36094.7%2.5%0.8%
Evening34485.5%8.7%0.6%

Which weekday was most reliable for BIL to SLC?

Among qualifying BIL-to-SLC weekday results, Monday had the highest on-time rate: 94.2% of 155 flights. Friday was lowest at 89.0% across 154 flights.

DayFlightsOn time30+ minCancelled
Monday15594.2%2.6%0.6%
Tuesday15993.1%5.0%0.0%
Wednesday15489.0%4.5%0.6%
Thursday15389.5%7.2%0.0%
Friday15489.0%8.4%0.0%
Saturday14691.1%4.1%2.7%
Sunday15390.2%7.2%0.7%

Which airline was most reliable for BIL to SLC?

Among qualifying BIL-to-SLC airline results, Delta Air Lines had the highest on-time rate: 92.6% of 366 flights. SkyWest Airlines was lowest at 90.0% across 708 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines70890.0%5.6%0.7%
Delta Air Lines36692.6%5.5%0.5%

Which month was most reliable for BIL to SLC?

Among qualifying BIL-to-SLC month results, September 2025 had the highest on-time rate: 97.8% of 90 flights. December 2025 was lowest at 84.4% across 90 flights.

MonthFlightsOn time30+ minCancelled
July 20259291.3%5.4%1.1%
August 20259391.4%5.4%0.0%
September 20259097.8%1.1%0.0%
October 20259293.5%5.4%0.0%
November 20258889.8%4.5%4.5%
December 20259084.4%11.1%0.0%
January 20268693.0%3.5%0.0%
February 20267884.6%7.7%0.0%
March 20269285.9%8.7%1.1%
April 20269090.0%6.7%0.0%
May 20269394.6%4.3%0.0%
June 20269093.3%3.3%1.1%

What drove BIL to SLC delay minutes?

Airline was the largest recorded BIL-to-SLC delay category, accounting for 77.2% of 7,552 BTS-attributed delay minutes during July 2025–June 2026.

Airline77.2%
Late aircraft2.8%
National airspace9.1%
Weather10.8%
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.