DTW to SAT flight delays & on-time performance
Nonstop flights from Detroit Metropolitan Wayne County Airport to San Antonio International Airport · 1,214 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DTW or SAT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Detroit (DTW) to San Antonio (SAT) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 6% arrived an hour or more late.
- Departures scheduled around 10am did best (97% on time); around 8pm did worst (70%).
- Tuesday was the most reliable day to fly (88% on time) and Sunday the least (76%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (59%).
Which airline is most on time from DTW to SAT?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Spirit Airlines | 90% | 0.0% | 31 min | 10.0% | 10 |
| Delta Air Lines | 81% | 0.7% | 12 min | 6.0% | 934 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am87%311 flights
- 10am97%34 flights
- 12pm80%25 flights
- 1pm85%200 flights
- 8pm70%297 flights
- 9pm79%56 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday80%1.4% cancelled
- Tuesday88%0.7% cancelled
- Wednesday82%0.0% cancelled
- Thursday81%0.7% cancelled
- Friday77%0.0% cancelled
- Saturday80%1.0% cancelled
- Sunday76%1.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)59%
- Air traffic control & airport congestion22%
- Late-arriving aircraft17%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)86%
- Extreme weather14%
- Air traffic control & airport congestion0%
- Security0%
DTW to SAT: common questions
- How often are DTW to SAT flights on time?
- 81% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Detroit to San Antonio cancelled?
- 0.7% of scheduled flights were cancelled (7 of 944).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 6.0% of flights were an hour or more late.
- How long is taxi time at DTW?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAT to DTW — 91% on time
More flights from Detroit
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DTW → SAT, nonstop flights by US airlines that report to the DOT. How we calculate this.