Route
BOI → SLC
Boise Air Terminal/Gowen Field Salt Lake City International Airport
How punctual is this route?
- On-time arrivals
- 91.1%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 92 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,732
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 57%
- Late-arriving aircraft 27%
- Air traffic control & airport 10%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.3% | 150 |
| October 2025 | 92.3% | 155 |
| November 2025 | 94.3% | 147 |
| December 2025 | 89.7% | 149 |
| January 2026 | 85.1% | 124 |
| February 2026 | 90.1% | 112 |
| March 2026 | 94.6% | 147 |
| April 2026 | 89.9% | 150 |
| May 2026 | 96.1% | 155 |
| June 2026 | 90.9% | 147 |
| July 2026 | 88.6% | 149 |
| August 2026 | 88.4% | 147 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 1,219 | 89.4% | 1.3% | 94 min |
| SkyWest Airlines | 513 | 94.9% | 0.2% | 80 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2173
10% late · 354 flights
-
DL1744
6% late · 242 flights
-
DL2095
13% late · 235 flights
-
OO3607
3% late · 121 flights
-
DL2920
19% late · 114 flights
-
OO3503
4% late · 110 flights
-
DL1442
13% late · 86 flights
-
DL1754
9% late · 86 flights
-
OO3725
1% late · 69 flights
-
OO4028
10% late · 62 flights
-
OO3504
6% late · 36 flights
-
OO3507
6% late · 36 flights
-
DL1710
9% late · 35 flights
-
DL2005
9% late · 35 flights
-
DL1106
4% late · 24 flights
-
OO3594
10% late · 21 flights
Reviews
No reviews yet. Be the first to review this route.