Route Reliability
St. Louis → Savannah
STL–SAV · 689 miles · St. Louis Lambert International Airport to Savannah/Hilton Head International Airport
95
Nerd Approved
WanderNerd Reliability Score
- 87%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0%
- Cancelled
- 74
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 87% of the time across 74 flights. No comparison to make.
What the data says
Morning flights do better here.
STL–SAV flights departing between 6–9 AM arrived on time 92% of the time, versus 82% between 12–3 PM.
Saturday is the weak spot.
STL–SAV flights arrived on time 89% of the time on Sundays. On Saturdays: 80%.
Flights on this route
The breakdown
- Mon—(9 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu—(9 flights)
- Fri—(8 flights)
- Sat80%(30 flights)
- Sun89%(18 flights)
- 6–9 AM92%(26 flights)
- 9 AM–12 PM88%(17 flights)
- 12–3 PM82%(22 flights)
- 3–6 PM—(9 flights)
80%
May
Jun 95% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 95% | 21 |
| July 2025 | 85% | 20 |
| May 2026 | 80% | 10 |
Keep nerding
Based on 74 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.