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

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

87.9% of 1,074 official scheduled SLC-to-BIL flights arrived on time; 7.1% arrived at least 30 minutes late and 0.6% 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
87.9%arrived on time
7.1%30+ min late
0.6%cancelled
1,074scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.8%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-1.3 mincompleted flights

Which departure time was most reliable for SLC to BIL?

Among qualifying SLC-to-BIL departure window results, Late morning had the highest on-time rate: 94.0% of 365 flights. Night was lowest at 81.0% across 364 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning36594.0%2.5%0.8%
Afternoon34588.7%6.4%0.3%
Night36481.0%12.4%0.5%

Which weekday was most reliable for SLC to BIL?

Among qualifying SLC-to-BIL weekday results, Tuesday had the highest on-time rate: 91.2% of 159 flights. Sunday was lowest at 84.3% across 153 flights.

DayFlightsOn time30+ minCancelled
Monday15587.7%7.1%0.6%
Tuesday15991.2%3.8%0.0%
Wednesday15485.7%9.1%0.6%
Thursday15387.6%7.8%0.0%
Friday15487.7%7.1%1.3%
Saturday14691.1%4.1%0.7%
Sunday15384.3%10.5%0.7%

Which airline was most reliable for SLC to BIL?

Among qualifying SLC-to-BIL airline results, SkyWest Airlines had the highest on-time rate: 91.4% of 708 flights. Delta Air Lines was lowest at 81.1% across 366 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines70891.4%4.4%0.6%
Delta Air Lines36681.1%12.3%0.5%

Which month was most reliable for SLC to BIL?

Among qualifying SLC-to-BIL month results, September 2025 had the highest on-time rate: 96.7% of 90 flights. February 2026 was lowest at 79.5% across 78 flights.

MonthFlightsOn time30+ minCancelled
July 20259287.0%7.6%1.1%
August 20259390.3%7.5%0.0%
September 20259096.7%2.2%0.0%
October 20259290.2%5.4%0.0%
November 20258890.9%3.4%3.4%
December 20259083.3%12.2%0.0%
January 20268687.2%9.3%0.0%
February 20267879.5%11.5%0.0%
March 20269289.1%5.4%1.1%
April 20269086.7%5.6%0.0%
May 20269389.2%8.6%0.0%
June 20269083.3%6.7%1.1%

What drove SLC to BIL delay minutes?

Airline was the largest recorded SLC-to-BIL delay category, accounting for 66.8% of 8,320 BTS-attributed delay minutes during July 2025–June 2026.

Airline66.8%
Late aircraft16.7%
National airspace3.0%
Weather13.5%
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.