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461 km · Domestic

Detroit Metropolitan Wayne County (DTW) – Austin Straubel (GRB)

In July 2026, 130 flights operated between Detroit Metropolitan Wayne County and Austin Straubel (both directions), and 76.2% 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
January168176▲ 4.8%
February79162▲ 105.1%
March145167▲ 15.2%
April122180▲ 47.5%
May164184▲ 12.2%
June113136▲ 20.4%
July4130▲ 3,150.0%
August29––
September48––
October167–in progress
November163––
December173––
Year to date (Jan–Jul)7951,135▲ 42.8%

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
January73.8%68.2%▼ 7.6%
February70.9%82.1%▲ 15.8%
March80.7%65.3%▼ 19.1%
April83.6%76.1%▼ 9.0%
May85.4%80.4%▼ 5.9%
June76.1%93.4%▲ 22.7%
July75.0%76.2%▲ 1.6%
August72.4%––
September75.0%––
October85.0%–in progress
November79.8%––
December65.3%––
Year-to-date average (Jan–Jul)77.9%77.4%▼ 0.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March013–
April40▼ 100.0%
May02–
June00–
July00–
August0––
September0––
October0–in progress
November13––
December7––
Year to date (Jan–Jul)415▲ 275.0%

Airlines on this route

  1. SkyWest Airlines 87.5%
  2. Delta Air Lines 12.5%
  3. Endeavor Air 0.0%

Oct 1, 2024 – Jul 31, 2026

By direction

DTW → GRB

Scheduled flights
1,493
Flights operated
1,471
Cancelled
22 · 1.5%
On-time departures
73.4%

GRB → DTW

Scheduled flights
1,493
Flights operated
1,472
Cancelled
21 · 1.4%
On-time departures
81.2%

DTW → GRB and GRB → DTW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 2,612 87.5% 77.9% 37
Delta Air Lines DL 373 12.5% 73.0% 6
Endeavor Air 9E 1 0.0% 100.0% 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 delay07:00–08:008.9min · 426 recorded · 418 measured
Gap to highest-delay hour20.0min07:00 ↔ 20:00
Recorded flights2,986DTW–GRB

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS 07:00 · 87.8% · 426 recorded · 418 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 23 recorded · 23 measured · Source: the US BTS 10:00 · 80.2% · 439 recorded · 430 measured · Source: the US BTS 11:00 · 78.2% · 435 recorded · 427 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 46 recorded · 45 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 18 recorded · 17 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 84 recorded · 83 measured · Source: the US BTS 16:00 · 71.1% · 430 recorded · 426 measured · Source: the US BTS 17:00 · 75.8% · 428 recorded · 425 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 20:00 · 69.4% · 482 recorded · 474 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 34 recorded · 34 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS 07:00 · 8.9 min · 426 recorded · 418 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 23 recorded · 23 measured · Source: the US BTS 10:00 · 16.7 min · 439 recorded · 430 measured · Source: the US BTS 11:00 · 18.3 min · 435 recorded · 427 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 46 recorded · 45 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 18 recorded · 17 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 84 recorded · 83 measured · Source: the US BTS 16:00 · 21.4 min · 430 recorded · 426 measured · Source: the US BTS 17:00 · 16.8 min · 428 recorded · 425 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 20:00 · 28.9 min · 482 recorded · 474 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 34 recorded · 34 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.

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 103 · 103 recorded · 103 measured · Source: the US BTS 07:00 · 426 · 426 recorded · 418 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 23 · 23 recorded · 23 measured · Source: the US BTS 10:00 · 439 · 439 recorded · 430 measured · Source: the US BTS 11:00 · 435 · 435 recorded · 427 measured · Source: the US BTS 12:00 · 46 · 46 recorded · 45 measured · Source: the US BTS 13:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 14:00 · 18 · 18 recorded · 17 measured · Source: the US BTS 15:00 · 84 · 84 recorded · 83 measured · Source: the US BTS 16:00 · 430 · 430 recorded · 426 measured · Source: the US BTS 17:00 · 428 · 428 recorded · 425 measured · Source: the US BTS 18:00 · 35 · 35 recorded · 35 measured · Source: the US BTS 19:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 20:00 · 482 · 482 recorded · 474 measured · Source: the US BTS 21:00 · 34 · 34 recorded · 34 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———
05:00No observations———
06:00Fewer than 200 measured departures—103103
07:0087.8%8.9 min418426
08:00No observations———
09:00Fewer than 200 measured departures—2323
10:0080.2%16.7 min430439
11:0078.2%18.3 min427435
12:00Fewer than 200 measured departures—4546
13:00Fewer than 200 measured departures—22
14:00Fewer than 200 measured departures—1718
15:00Fewer than 200 measured departures—8384
16:0071.1%21.4 min426430
17:0075.8%16.8 min425428
18:00Fewer than 200 measured departures—3535
19:00Fewer than 200 measured departures—11
20:0069.4%28.9 min474482
21:00Fewer than 200 measured departures—3434
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 · 75.8% · 441 recorded · 429 measured · Source: the US BTS Tuesday · 78.4% · 436 recorded · 431 measured · Source: the US BTS Wednesday · 79.3% · 438 recorded · 435 measured · Source: the US BTS Thursday · 77.5% · 432 recorded · 426 measured · Source: the US BTS Friday · 75.8% · 431 recorded · 425 measured · Source: the US BTS Saturday · 80.9% · 385 recorded · 382 measured · Source: the US BTS Sunday · 73.7% · 423 recorded · 415 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 · 18.7 min · 441 recorded · 429 measured · Source: the US BTS Tuesday · 16.4 min · 436 recorded · 431 measured · Source: the US BTS Wednesday · 13.5 min · 438 recorded · 435 measured · Source: the US BTS Thursday · 22.1 min · 432 recorded · 426 measured · Source: the US BTS Friday · 17.3 min · 431 recorded · 425 measured · Source: the US BTS Saturday · 10.9 min · 385 recorded · 382 measured · Source: the US BTS Sunday · 25.3 min · 423 recorded · 415 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 · 441 · 441 recorded · 429 measured · Source: the US BTS Tuesday · 436 · 436 recorded · 431 measured · Source: the US BTS Wednesday · 438 · 438 recorded · 435 measured · Source: the US BTS Thursday · 432 · 432 recorded · 426 measured · Source: the US BTS Friday · 431 · 431 recorded · 425 measured · Source: the US BTS Saturday · 385 · 385 recorded · 382 measured · Source: the US BTS Sunday · 423 · 423 recorded · 415 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday75.8%18.7 min429441
Tuesday78.4%16.4 min431436
Wednesday79.3%13.5 min435438
Thursday77.5%22.1 min426432
Friday75.8%17.3 min425431
Saturday80.9%10.9 min382385
Sunday73.7%25.3 min415423

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 · 70.9% · 344 recorded · 344 measured · Source: the US BTS Feb · 78.4% · 241 recorded · 241 measured · Source: the US BTS Mar · 72.4% · 325 recorded · 312 measured · Source: the US BTS Apr · 79.1% · 306 recorded · 302 measured · Source: the US BTS May · 82.8% · 350 recorded · 348 measured · Source: the US BTS Jun · 85.5% · 249 recorded · 249 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 134 recorded · 134 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 48 recorded · 48 measured · Source: the US BTS Oct · 85.6% · 278 recorded · 278 measured · Source: the US BTS Nov · 77.2% · 346 recorded · 333 measured · Source: the US BTS Dec · 68.3% · 336 recorded · 325 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 · 29.6 min · 344 recorded · 344 measured · Source: the US BTS Feb · 14.7 min · 241 recorded · 241 measured · Source: the US BTS Mar · 20.6 min · 325 recorded · 312 measured · Source: the US BTS Apr · 14.3 min · 306 recorded · 302 measured · Source: the US BTS May · 10.3 min · 350 recorded · 348 measured · Source: the US BTS Jun · 8.7 min · 249 recorded · 249 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 134 recorded · 134 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 48 recorded · 48 measured · Source: the US BTS Oct · 4.1 min · 278 recorded · 278 measured · Source: the US BTS Nov · 12.7 min · 346 recorded · 333 measured · Source: the US BTS Dec · 40.9 min · 336 recorded · 325 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 · 344 · 344 recorded · 344 measured · Source: the US BTS Feb · 241 · 241 recorded · 241 measured · Source: the US BTS Mar · 325 · 325 recorded · 312 measured · Source: the US BTS Apr · 306 · 306 recorded · 302 measured · Source: the US BTS May · 350 · 350 recorded · 348 measured · Source: the US BTS Jun · 249 · 249 recorded · 249 measured · Source: the US BTS Jul · 134 · 134 recorded · 134 measured · Source: the US BTS Aug · 29 · 29 recorded · 29 measured · Source: the US BTS Sep · 48 · 48 recorded · 48 measured · Source: the US BTS Oct · 278 · 278 recorded · 278 measured · Source: the US BTS Nov · 346 · 346 recorded · 333 measured · Source: the US BTS Dec · 336 · 336 recorded · 325 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan70.9%29.6 min344344
Feb78.4%14.7 min241241
Mar72.4%20.6 min312325
Apr79.1%14.3 min302306
May82.8%10.3 min348350
Jun85.5%8.7 min249249
JulFewer than 200 measured departures—134134
AugFewer than 200 measured departures—2929
SepFewer than 200 measured departures—4848
Oct85.6%4.1 min278278
Nov77.2%12.7 min333346
Dec68.3%40.9 min325336

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 76.2% 2,275
  • Delayed >15 min 22.4% 668
  • Cancelled 1.4% 43
  • 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

21
21 of 21
Flight numbersBy direction DeparturesOn time
OO3984 GRB → DTW 402 88.9%
OO3850 DTW → GRB 390 70.1%
OO4059 DTW → GRB 385 79.8%
OO4059 GRB → DTW 385 79.4%
OO3854 DTW → GRB 212 69.8%
OO3854 GRB → DTW 141 66.7%
OO3974 GRB → DTW 75 76.8%
OO3974 DTW → GRB 75 78.3%
OO3624 DTW → GRB 72 72.9%
OO3878 GRB → DTW 72 87.1%
DL1453 GRB → DTW 57 80.7%
DL1453 DTW → GRB 57 71.9%
DL3102 GRB → DTW 54 79.6%
DL3102 DTW → GRB 54 72.2%
OO3670 GRB → DTW 34 87.5%
OO3684 DTW → GRB 34 63.6%
DL1475 DTW → GRB 31 51.7%
DL1475 GRB → DTW 31 62.1%
OO3653 GRB → DTW 31 87.1%
OO3924 DTW → GRB 31 80.0%
OO3924 GRB → DTW 31 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 130 +3,150.0% 0 76.2%
June 2026 136 +20.4% 0 93.4%
May 2026 184 +12.2% 2 80.4%
April 2026 180 +47.5% 0 76.1%
March 2026 167 +15.2% 13 65.3%
February 2026 162 +105.1% 0 82.1%
January 2026 176 +4.8% 0 68.2%
December 2025 173 +13.8% 7 65.3%
November 2025 163 −4.1% 13 79.8%
October 2025 167 +50.5% 0 85.0%
September 2025 48 0 75.0%
August 2025 29 0 72.4%
July 2025 4 0 75.0%
June 2025 113 0 76.1%
May 2025 164 0 85.4%
April 2025 122 4 83.6%
March 2025 145 0 80.7%
February 2025 79 0 70.9%
January 2025 168 0 73.8%
December 2024 152 4 71.7%
November 2024 170 0 74.7%
October 2024 111 0 86.5%

How to read this chart

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