Airport Reliability
GST · Gustavus
Gustavus, AK (GST)
- 84%
- Departures within 15 minutes
- 6 min
- Average departure delay
- 85%
- Arrivals within 15 minutes
- 3.5%
- Departures cancelled
Based on 86 departures and 86 arrivals. Data through May 2026.
What the data says
Saturdays have been rough.
Departures from GST arrived on time 92% of the time on Thursdays and just 62% on Saturdays. That gap is worth planning around.
When GST gets messy
- Mon82%(11 flights)
- Tue83%(12 flights)
- Wed91%(11 flights)
- Thu92%(12 flights)
- Fri83%(12 flights)
- Sat62%(13 flights)
- Sun92%(12 flights)
86%
Aug
Jun 79% → Aug 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 24 |
| July 2025 | 83% | 30 |
| August 2025 | 86% | 29 |
Airlines departing GST
Busiest routes from GST
Based on 86 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.