Route Reliability
WYS → Salt Lake City
WYS–SLC · 273 miles · WYS Airport to Salt Lake City International Airport
97
Nerd Approved
WanderNerd Reliability Score
- 92%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 0.7%
- Cancelled
- 147
- Flights in the data
Data through May 2026.
Delta Air Lines is the only airline in this data on this route, arriving on time 92% of the time across 147 flights. No comparison to make.
What the data says
Morning flights do better here.
WYS–SLC flights departing between 9 AM–12 PM arrived on time 100% of the time, versus 89% between 12–3 PM.
Thursdays have been rough.
WYS–SLC flights arrived on time 100% of the time on Fridays and just 79% on Thursdays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon95%(20 flights)
- Tue89%(18 flights)
- Wed94%(18 flights)
- Thu79%(19 flights)
- Fri100%(19 flights)
- Sat97%(30 flights)
- Sun86%(22 flights)
- 9 AM–12 PM100%(17 flights)
- 12–3 PM89%(35 flights)
- 3–6 PM92%(94 flights)
83%
May
Jun 94% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 94% | 31 |
| July 2025 | 86% | 36 |
| August 2025 | 92% | 36 |
| September 2025 | 100% | 31 |
| May 2026 | 83% | 12 |
Keep nerding
Based on 147 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.