Route Reliability
Detroit → St. Louis
DTW–STL · 440 miles · Detroit Metropolitan Wayne County Airport to St. Louis Lambert International Airport
- 78%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.9%
- Cancelled
- 1,932
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines78%1,299 flights
- 2.Southwest Airlines78%585 flights
Not enough history to rank: Spirit Airlines (48 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
DTW–STL flights departing between 9 AM–12 PM arrived on time 88% of the time, versus 67% between 9 PM–12 AM.
Friday is doing you no favors.
DTW–STL flights arrived on time 83% of the time on Tuesdays. On Fridays: 73%.
Not much between Delta Air Lines and Southwest Airlines.
On this route they all land within 78% to 78% on time. Pick on schedule and price.
Trending in the right direction.
DTW–STL flights arrived on time 78% of the time over the last three months in the data, compared with 68% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon74%(288 flights)
- Tue83%(269 flights)
- Wed82%(266 flights)
- Thu79%(291 flights)
- Fri73%(291 flights)
- Sat82%(217 flights)
- Sun75%(288 flights)
- 3–6 AM86%(28 flights)
- 6–9 AM86%(606 flights)
- 9 AM–12 PM88%(42 flights)
- 12–3 PM78%(281 flights)
- 3–6 PM76%(391 flights)
- 6–9 PM69%(508 flights)
- 9 PM–12 AM67%(54 flights)
Jun 77% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 176 |
| July 2025 | 77% | 189 |
| August 2025 | 85% | 179 |
| September 2025 | 93% | 155 |
| October 2025 | 80% | 172 |
| November 2025 | 79% | 151 |
| December 2025 | 61% | 152 |
| January 2026 | 68% | 122 |
| February 2026 | 76% | 112 |
| March 2026 | 73% | 160 |
| April 2026 | 81% | 167 |
| May 2026 | 79% | 175 |
Keep nerding
Based on 1,932 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.