Airport Reliability
WYS · West Yellowstone
West Yellowstone, MT (WYS)
- 81%
- Departures within 15 minutes
- 17 min
- Average departure delay
- 86%
- Arrivals within 15 minutes
- 0.6%
- Departures cancelled
Based on 339 departures and 339 arrivals. Data through May 2026.
What the data says
Morning-you made the right choice.
Departures from WYS departing between 9 AM–12 PM arrived on time 90% of the time, versus 75% between 12–3 PM.
Thursdays have been rough.
Departures from WYS arrived on time 91% of the time on Wednesdays and just 73% on Thursdays. That gap is worth planning around.
When WYS gets messy
- 9 AM–12 PM90%(38 flights)
- 12–3 PM75%(187 flights)
- 3–6 PM89%(102 flights)
- Mon81%(43 flights)
- Tue78%(40 flights)
- Wed91%(42 flights)
- Thu73%(41 flights)
- Fri88%(41 flights)
- Sat81%(69 flights)
- Sun77%(51 flights)
76%
May
Jun 78% → May 76% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 78% | 64 |
| July 2025 | 75% | 69 |
| August 2025 | 82% | 68 |
| September 2025 | 94% | 65 |
| October 2025 | 73% | 15 |
| May 2026 | 76% | 46 |
Airlines departing WYS
Busiest routes from WYS
Based on 339 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.