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Route · DTW → SAT · 2020–2025 BTS data

Detroit to San Antonio

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DTW to SAT (Detroit to San Antonio) ranks #2592 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.9%
On-time
+3.9 pts
vs US avg
66 min
Delay when late
4,680
Flights
#2592 of 4927
Corpus placement

Cancelled

0.7%

Best Month

Oct 2024 93%

Worst Month

Jul 2024 66%

Distance

1,214 mi

Carriers

7

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 86 24 0 0 DL
Nov 2025 83 15 0 0 DL
Oct 2025 83 8 0 0 DL
Sep 2025 82 12 0 0 DL
Aug 2025 97 11 0 0 NK,DL
Jul 2025 92 22 2 0 DL,NK
Jun 2025 93 16 1 0 DL,NK
May 2025 94 26 0 2 DL,NK
Apr 2025 75 11 0 0 DL
Mar 2025 62 15 0 0 DL
Feb 2025 56 9 0 0 DL
Jan 2025 62 14 1 0 DL
Dec 2024 86 23 0 0 DL
Nov 2024 70 8 0 0 DL
Oct 2024 84 6 0 0 DL
Sep 2024 82 15 0 0 DL
Aug 2024 79 15 0 0 DL
Jul 2024 85 29 7 0 DL
Jun 2024 82 13 0 0 DL
May 2024 79 25 0 0 DL
Apr 2024 73 14 0 0 DL
Mar 2024 62 7 0 1 DL
Feb 2024 58 8 0 0 DL
Jan 2024 62 15 2 0 DL

DTW–SAT seasonal on-time pattern

Best: October (88.4%) · weakest: January (78.2%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.8%

Strongest calendar month

October

88.4% on-time · ~73 flights/mo

Busiest calendar month

July

~77 flights/mo avg

Weakest calendar month

January

78.2% on-time · ~59 flights/mo

Cancellation Rate

0.7%

13 of 1,867 flights

Diversion Rate

0.2%

3 of 1,867 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

DTW - Detroit

Full on-time, delay-cause, and seasonal performance for Detroit, MI.

DTW on-time profile

SAT - San Antonio

Full on-time, delay-cause, and seasonal performance for San Antonio, TX.

SAT on-time profile

Compare the two airports

See DTW and SAT side by side on delays, cancellations, and reliability.

Compare DTW vs SAT

Origin-hub reliability standing

Mid-pack among DTW departures

From DTW, this corridor sits with 60 other 75–85% on-time routes out of 94 tracked departures, not the hub's reliability leaders (34 at ≥85%) and not the softest ( 0 below 75%). Destination: San Antonio · fleet on-time rank #1981 of 4927.

What the Data Says About DTW to SAT

Bureau of Transportation Statistics records show Detroit to San Antonio (DTW to SAT) running a 82.9% on-time rate over 4,680 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 65.7 minutes. The 1,214-mile corridor is served by 7 carriers, and over the last 24 months 0.7% of 1,867 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 66% - a 27-point swing worth factoring into travel timing.

On the multi-year calendar, DTW–SAT peaks in October at 88.4% on-time while July carries the heaviest traffic (~77 flights per month) ; the softest month is January at 78.2%, a 10.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DTW to SAT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DTW to SAT ranks #2592 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from DTW to SAT? ▼
Flights from Detroit to San Antonio have a 82.9% on-time rate based on 4,680 flights. The average delay is 65.7 minutes. The best recent month was Oct 2024 with 93% on-time.
What is the cancellation rate for DTW to SAT? ▼
Over the last 24 months, 0.7% of flights on this route were cancelled (13 of 1,867 flights) and 0.2% were diverted.
How far is the flight from DTW to SAT? ▼
The flight distance from Detroit (DTW) to San Antonio (SAT) is approximately 1,214 miles. This route is served by 7 carriers.
When is the best time to fly from DTW to SAT? ▼
The best recent month for on-time performance was Oct 2024 (93% on-time). The worst was Jul 2024 (66% on-time). Consider booking during months with historically better performance.

Airports on this route

DTW Airport

Detroit
SAT Airport

San Antonio
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using DTW–SAT data

DTW–SAT runs 3.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare DTW and SAT airport profiles: delay causes and top routes differ even on the same corridor. DTW airport
  • If your dates flex, October (88.4% on-time) beats January (78.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.