Route Reliability
Cleveland → St. Louis
CLE–STL · 487 miles · Cleveland Hopkins International Airport to St. Louis Lambert International Airport
- 85%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0.1%
- Cancelled
- 705
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 85% of the time across 705 flights. No comparison to make.
What the data says
Morning flights do better here.
CLE–STL flights departing between 9 AM–12 PM arrived on time 95% of the time, versus 50% between 9 PM–12 AM.
Sunday scaries are real for this one.
CLE–STL flights arrived on time 94% of the time on Wednesdays and just 77% on Sundays. That gap is worth planning around.
It basically never cancels.
Out of 705 scheduled flights, only 0.1% were cancelled.
Slipping a little lately.
CLE–STL flights arrived on time 80% of the time over the last three months in the data, compared with 84% in the three months before that.
Flights on this route
The breakdown
- Mon83%(112 flights)
- Tue89%(104 flights)
- Wed94%(104 flights)
- Thu84%(109 flights)
- Fri84%(111 flights)
- Sat84%(61 flights)
- Sun77%(103 flights)
- 3–6 AM—(1 flights)
- 6–9 AM93%(322 flights)
- 9 AM–12 PM95%(19 flights)
- 12–3 PM91%(42 flights)
- 3–6 PM88%(41 flights)
- 6–9 PM75%(265 flights)
- 9 PM–12 AM50%(14 flights)
Jun 92% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 92% | 60 |
| July 2025 | 80% | 61 |
| August 2025 | 87% | 67 |
| September 2025 | 87% | 69 |
| October 2025 | 95% | 58 |
| November 2025 | 85% | 54 |
| December 2025 | 77% | 57 |
| January 2026 | 88% | 56 |
| February 2026 | 89% | 52 |
| March 2026 | 76% | 58 |
| April 2026 | 89% | 56 |
| May 2026 | 75% | 56 |
Keep nerding
Based on 705 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.