Route
SLC → BIL
Salt Lake City International Airport Billings Logan International Airport
387 miles
Return route BIL → SLC →
How punctual is this route?
- On-time arrivals
- 87.2%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,074
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 59%
- Late-arriving aircraft 20%
- Extreme weather 17%
- Air traffic control & airport 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.7% | 90 |
| October 2025 | 90.2% | 92 |
| November 2025 | 94.1% | 88 |
| December 2025 | 83.3% | 90 |
| January 2026 | 87.2% | 86 |
| February 2026 | 79.5% | 78 |
| March 2026 | 90.1% | 92 |
| April 2026 | 86.7% | 90 |
| May 2026 | 89.2% | 93 |
| June 2026 | 84.3% | 90 |
| July 2026 | 81.3% | 92 |
| August 2026 | 82.8% | 93 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 709 | 91.1% | 0.6% | 77 min |
| Delta Air Lines | 365 | 79.7% | 0.3% | 62 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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