Route
DTW → SAT
Detroit Metropolitan Wayne County Airport San Antonio International Airport
1,214 miles
Return route SAT → DTW →
How punctual is this route?
- On-time arrivals
- 80.4%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 934
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 57%
- Air traffic control & airport 23%
- Late-arriving aircraft 17%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.4% | 82 |
| October 2025 | 90.4% | 83 |
| November 2025 | 81.9% | 83 |
| December 2025 | 72.1% | 86 |
| January 2026 | 61.9% | 64 |
| February 2026 | 83.9% | 56 |
| March 2026 | 86.9% | 62 |
| April 2026 | 81.6% | 76 |
| May 2026 | 75.9% | 87 |
| June 2026 | 75.3% | 83 |
| July 2026 | 80.7% | 85 |
| August 2026 | 87.4% | 87 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 934 | 80.4% | 0.7% | 60 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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