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1,954 km · Domestic

Detroit Metropolitan Wayne County (DTW) – San Antonio (SAT)

In July 2026, 166 flights operated between Detroit Metropolitan Wayne County and San Antonio (both directions), and 86.1% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January122126▲ 3.3%
February1121120.0%
March124122▼ 1.6%
April150152▲ 1.3%
May188170▼ 9.6%
June184164▼ 10.9%
July180166▼ 7.8%
August194––
September164––
October166–in progress
November166––
December172––
Year to date (Jan–Jul)1,0601,012▼ 4.5%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January88.5%78.6%▼ 11.2%
February84.8%84.8%0.0%
March84.7%89.3%▲ 5.4%
April92.0%86.8%▼ 5.7%
May84.0%83.5%▼ 0.6%
June87.0%85.4%▼ 1.8%
July81.1%86.1%▲ 6.2%
August90.7%––
September89.6%––
October89.8%–in progress
November88.6%––
December77.3%––
Year-to-date average (Jan–Jul)86.0%84.9%▼ 1.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January220.0%
February00–
March02–
April00–
May04–
June220.0%
July440.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)814▲ 75.0%

Airlines on this route

  1. Delta Air Lines 98.0%
  2. Spirit Airlines 2.0%

Oct 1, 2024 – Jul 31, 2026

By direction

DTW → SAT

Scheduled flights
1,686
Flights operated
1,675
Cancelled
11 · 0.7%
On-time departures
83.5%

SAT → DTW

Scheduled flights
1,687
Flights operated
1,676
Cancelled
11 · 0.7%
On-time departures
88.7%

DTW → SAT and SAT → DTW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 3,306 98.0% 86.1% 22
Spirit Airlines NK 67 2.0% 88.1% 0

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay05:00–06:00-2.5min · 651 recorded · 645 measured
Gap to highest-delay hour15.1min05:00 ↔ 20:00
Recorded flights3,373DTW–SAT

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 95.0% · 651 recorded · 645 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · 90.5% · 590 recorded · 587 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 55 recorded · 54 measured · Source: the US BTS 11:00 · 86.4% · 297 recorded · 294 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 139 recorded · 139 measured · Source: the US BTS 13:00 · 84.3% · 305 recorded · 305 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 16:00 · 83.4% · 611 recorded · 609 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 20:00 · 74.6% · 554 recorded · 547 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · -2.5 min · 651 recorded · 645 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · 2.9 min · 590 recorded · 587 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 55 recorded · 54 measured · Source: the US BTS 11:00 · 1.5 min · 297 recorded · 294 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 139 recorded · 139 measured · Source: the US BTS 13:00 · 4.2 min · 305 recorded · 305 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 16:00 · 9.2 min · 611 recorded · 609 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 20:00 · 12.7 min · 554 recorded · 547 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 651 · 651 recorded · 645 measured · Source: the US BTS 06:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 07:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 08:00 · 590 · 590 recorded · 587 measured · Source: the US BTS 09:00 · 16 · 16 recorded · 16 measured · Source: the US BTS 10:00 · 55 · 55 recorded · 54 measured · Source: the US BTS 11:00 · 297 · 297 recorded · 294 measured · Source: the US BTS 12:00 · 139 · 139 recorded · 139 measured · Source: the US BTS 13:00 · 305 · 305 recorded · 305 measured · Source: the US BTS 14:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 15:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 16:00 · 611 · 611 recorded · 609 measured · Source: the US BTS 17:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 17 · 17 recorded · 17 measured · Source: the US BTS 20:00 · 554 · 554 recorded · 547 measured · Source: the US BTS 21:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0095.0%-2.5 min645651
06:00Fewer than 200 measured departures—1010
07:00Fewer than 200 measured departures—11
08:0090.5%2.9 min587590
09:00Fewer than 200 measured departures—1616
10:00Fewer than 200 measured departures—5455
11:0086.4%1.5 min294297
12:00Fewer than 200 measured departures—139139
13:0084.3%4.2 min305305
14:00Fewer than 200 measured departures—1818
15:00Fewer than 200 measured departures—5252
16:0083.4%9.2 min609611
17:00Fewer than 200 measured departures—11
18:00No observations———
19:00Fewer than 200 measured departures—1717
20:0074.6%12.7 min547554
21:00Fewer than 200 measured departures—5656
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 84.9% · 524 recorded · 518 measured · Source: the US BTS Tuesday · 89.3% · 492 recorded · 488 measured · Source: the US BTS Wednesday · 87.1% · 489 recorded · 488 measured · Source: the US BTS Thursday · 88.1% · 488 recorded · 486 measured · Source: the US BTS Friday · 86.5% · 510 recorded · 510 measured · Source: the US BTS Saturday · 84.0% · 380 recorded · 375 measured · Source: the US BTS Sunday · 82.3% · 490 recorded · 486 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 4.2 min · 524 recorded · 518 measured · Source: the US BTS Tuesday · 0.1 min · 492 recorded · 488 measured · Source: the US BTS Wednesday · 2.6 min · 489 recorded · 488 measured · Source: the US BTS Thursday · 2.7 min · 488 recorded · 486 measured · Source: the US BTS Friday · 6.9 min · 510 recorded · 510 measured · Source: the US BTS Saturday · 4.9 min · 380 recorded · 375 measured · Source: the US BTS Sunday · 13.2 min · 490 recorded · 486 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 524 · 524 recorded · 518 measured · Source: the US BTS Tuesday · 492 · 492 recorded · 488 measured · Source: the US BTS Wednesday · 489 · 489 recorded · 488 measured · Source: the US BTS Thursday · 488 · 488 recorded · 486 measured · Source: the US BTS Friday · 510 · 510 recorded · 510 measured · Source: the US BTS Saturday · 380 · 380 recorded · 375 measured · Source: the US BTS Sunday · 490 · 490 recorded · 486 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday84.9%4.2 min518524
Tuesday89.3%0.1 min488492
Wednesday87.1%2.6 min488489
Thursday88.1%2.7 min486488
Friday86.5%6.9 min510510
Saturday84.0%4.9 min375380
Sunday82.3%13.2 min486490

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 83.5% · 252 recorded · 248 measured · Source: the US BTS Feb · 84.8% · 224 recorded · 224 measured · Source: the US BTS Mar · 87.0% · 248 recorded · 246 measured · Source: the US BTS Apr · 89.4% · 302 recorded · 302 measured · Source: the US BTS May · 83.8% · 362 recorded · 358 measured · Source: the US BTS Jun · 86.2% · 352 recorded · 348 measured · Source: the US BTS Jul · 83.5% · 354 recorded · 346 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 194 recorded · 194 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS Oct · 89.3% · 270 recorded · 270 measured · Source: the US BTS Nov · 88.9% · 306 recorded · 306 measured · Source: the US BTS Dec · 80.9% · 345 recorded · 345 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 8.4 min · 252 recorded · 248 measured · Source: the US BTS Feb · 6.1 min · 224 recorded · 224 measured · Source: the US BTS Mar · 6.0 min · 248 recorded · 246 measured · Source: the US BTS Apr · 0.5 min · 302 recorded · 302 measured · Source: the US BTS May · 4.9 min · 362 recorded · 358 measured · Source: the US BTS Jun · 5.6 min · 352 recorded · 348 measured · Source: the US BTS Jul · 6.6 min · 354 recorded · 346 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 194 recorded · 194 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS Oct · 2.0 min · 270 recorded · 270 measured · Source: the US BTS Nov · 4.9 min · 306 recorded · 306 measured · Source: the US BTS Dec · 9.2 min · 345 recorded · 345 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 252 · 252 recorded · 248 measured · Source: the US BTS Feb · 224 · 224 recorded · 224 measured · Source: the US BTS Mar · 248 · 248 recorded · 246 measured · Source: the US BTS Apr · 302 · 302 recorded · 302 measured · Source: the US BTS May · 362 · 362 recorded · 358 measured · Source: the US BTS Jun · 352 · 352 recorded · 348 measured · Source: the US BTS Jul · 354 · 354 recorded · 346 measured · Source: the US BTS Aug · 194 · 194 recorded · 194 measured · Source: the US BTS Sep · 164 · 164 recorded · 164 measured · Source: the US BTS Oct · 270 · 270 recorded · 270 measured · Source: the US BTS Nov · 306 · 306 recorded · 306 measured · Source: the US BTS Dec · 345 · 345 recorded · 345 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.5%8.4 min248252
Feb84.8%6.1 min224224
Mar87.0%6.0 min246248
Apr89.4%0.5 min302302
May83.8%4.9 min358362
Jun86.2%5.6 min348352
Jul83.5%6.6 min346354
AugFewer than 200 measured departures—194194
SepFewer than 200 measured departures—164164
Oct89.3%2.0 min270270
Nov88.9%4.9 min306306
Dec80.9%9.2 min345345

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 85.5% 2,885
  • Delayed >15 min 13.8% 466
  • Cancelled 0.7% 22
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

15
15 of 15
Flight numbersBy direction DeparturesOn time
DL2497 SAT → DTW 658 94.9%
DL1365 DTW → SAT 644 75.5%
DL788 DTW → SAT 616 90.2%
DL2432 SAT → DTW 315 84.1%
DL788 SAT → DTW 287 85.9%
DL2432 DTW → SAT 269 85.5%
DL2458 DTW → SAT 101 85.2%
DL2232 SAT → DTW 73 87.7%
DL2598 SAT → DTW 55 85.5%
DL2479 SAT → DTW 46 87.0%
DL512 SAT → DTW 40 87.5%
DL2252 SAT → DTW 36 75.0%
DL2543 SAT → DTW 32 87.5%
DL2448 SAT → DTW 31 90.3%
DL2299 SAT → DTW 30 86.7%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 166 −7.8% 4 86.1%
June 2026 164 −10.9% 2 85.4%
May 2026 170 −9.6% 4 83.5%
April 2026 152 +1.3% 0 86.8%
March 2026 122 −1.6% 2 89.3%
February 2026 112 +0.0% 0 84.8%
January 2026 126 +3.3% 2 78.6%
December 2025 172 −0.6% 0 77.3%
November 2025 166 +18.6% 0 88.6%
October 2025 166 +59.6% 0 89.8%
September 2025 164 0 89.6%
August 2025 194 0 90.7%
July 2025 180 4 81.1%
June 2025 184 2 87.0%
May 2025 188 0 84.0%
April 2025 150 0 92.0%
March 2025 124 0 84.7%
February 2025 112 0 84.8%
January 2025 122 2 88.5%
December 2024 173 0 84.4%
November 2024 140 0 89.3%
October 2024 104 0 88.5%

How to read this chart

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