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279 km · Domestic

Austin Straubel (GRB) – Chicago O'Hare (ORD)

In July 2026, 362 flights operated between Austin Straubel and Chicago O'Hare (both directions), and 83.7% 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
January218323▲ 48.2%
February178326▲ 83.1%
March232485▲ 109.1%
April351586▲ 67.0%
May413430▲ 4.1%
June550406▼ 26.2%
July520362▼ 30.4%
August462––
September385––
October424–in progress
November493––
December474––
Year to date (Jan–Jul)2,4622,918▲ 18.5%

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
January72.5%69.7%▼ 3.9%
February76.4%79.4%▲ 3.9%
March70.3%75.1%▲ 6.8%
April88.6%75.4%▼ 14.9%
May86.9%75.6%▼ 13.0%
June80.4%82.0%▲ 2.0%
July68.7%83.7%▲ 21.8%
August79.9%––
September84.2%––
October87.7%–in progress
November81.5%––
December61.2%––
Year-to-date average (Jan–Jul)77.7%77.3%▼ 0.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January54▼ 20.0%
February20▼ 100.0%
March373▲ 2,333.3%
April339▲ 1,200.0%
May440.0%
June015–
July811▲ 37.5%
August17––
September4––
October3–in progress
November50––
December20––
Year to date (Jan–Jul)25146▲ 484.0%

Airlines on this route

  1. SkyWest Airlines 51.7%
  2. Envoy Air 43.2%
  3. Republic Airways 5.1%

Oct 1, 2024 – Jul 31, 2026

By direction

GRB → ORD

Scheduled flights
4,216
Flights operated
4,079
Cancelled
137 · 3.2%
On-time departures
80.9%

ORD → GRB

Scheduled flights
4,217
Flights operated
4,079
Cancelled
138 · 3.3%
On-time departures
76.2%

GRB → ORD and ORD → GRB counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 4,361 51.7% 76.3% 149
Envoy Air MQ 3,643 43.2% 80.1% 109
Republic Airways YX 429 5.1% 87.9% 17

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 delay09:00–10:003.2min · 520 recorded · 515 measured
Gap to highest-delay hour29.5min09:00 ↔ 20:00
Recorded flights8,433GRB–ORD

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 · Fewer than 200 measured departures · 159 recorded · 154 measured · Source: the US BTS 06:00 · 90.5% · 892 recorded · 874 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 87 recorded · 85 measured · Source: the US BTS 08:00 · 85.6% · 1,075 recorded · 1,052 measured · Source: the US BTS 09:00 · 88.0% · 520 recorded · 515 measured · Source: the US BTS 10:00 · 82.4% · 716 recorded · 693 measured · Source: the US BTS 11:00 · 80.0% · 385 recorded · 380 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 170 recorded · 163 measured · Source: the US BTS 13:00 · 75.9% · 634 recorded · 613 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 188 recorded · 182 measured · Source: the US BTS 15:00 · 72.9% · 956 recorded · 920 measured · Source: the US BTS 16:00 · 75.5% · 272 recorded · 265 measured · Source: the US BTS 17:00 · 69.3% · 907 recorded · 880 measured · Source: the US BTS 18:00 · 72.9% · 520 recorded · 490 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 148 recorded · 139 measured · Source: the US BTS 20:00 · 65.5% · 364 recorded · 339 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 39 recorded · 37 measured · Source: the US BTS 22:00 · 69.3% · 338 recorded · 316 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 63 recorded · 61 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 · Fewer than 200 measured departures · 159 recorded · 154 measured · Source: the US BTS 06:00 · 4.5 min · 892 recorded · 874 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 87 recorded · 85 measured · Source: the US BTS 08:00 · 8.7 min · 1,075 recorded · 1,052 measured · Source: the US BTS 09:00 · 3.2 min · 520 recorded · 515 measured · Source: the US BTS 10:00 · 13.3 min · 716 recorded · 693 measured · Source: the US BTS 11:00 · 11.1 min · 385 recorded · 380 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 170 recorded · 163 measured · Source: the US BTS 13:00 · 15.8 min · 634 recorded · 613 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 188 recorded · 182 measured · Source: the US BTS 15:00 · 22.7 min · 956 recorded · 920 measured · Source: the US BTS 16:00 · 13.7 min · 272 recorded · 265 measured · Source: the US BTS 17:00 · 30.6 min · 907 recorded · 880 measured · Source: the US BTS 18:00 · 19.7 min · 520 recorded · 490 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 148 recorded · 139 measured · Source: the US BTS 20:00 · 32.6 min · 364 recorded · 339 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 39 recorded · 37 measured · Source: the US BTS 22:00 · 20.0 min · 338 recorded · 316 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 63 recorded · 61 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 · 159 · 159 recorded · 154 measured · Source: the US BTS 06:00 · 892 · 892 recorded · 874 measured · Source: the US BTS 07:00 · 87 · 87 recorded · 85 measured · Source: the US BTS 08:00 · 1,075 · 1,075 recorded · 1,052 measured · Source: the US BTS 09:00 · 520 · 520 recorded · 515 measured · Source: the US BTS 10:00 · 716 · 716 recorded · 693 measured · Source: the US BTS 11:00 · 385 · 385 recorded · 380 measured · Source: the US BTS 12:00 · 170 · 170 recorded · 163 measured · Source: the US BTS 13:00 · 634 · 634 recorded · 613 measured · Source: the US BTS 14:00 · 188 · 188 recorded · 182 measured · Source: the US BTS 15:00 · 956 · 956 recorded · 920 measured · Source: the US BTS 16:00 · 272 · 272 recorded · 265 measured · Source: the US BTS 17:00 · 907 · 907 recorded · 880 measured · Source: the US BTS 18:00 · 520 · 520 recorded · 490 measured · Source: the US BTS 19:00 · 148 · 148 recorded · 139 measured · Source: the US BTS 20:00 · 364 · 364 recorded · 339 measured · Source: the US BTS 21:00 · 39 · 39 recorded · 37 measured · Source: the US BTS 22:00 · 338 · 338 recorded · 316 measured · Source: the US BTS 23:00 · 63 · 63 recorded · 61 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———
05:00Fewer than 200 measured departures—154159
06:0090.5%4.5 min874892
07:00Fewer than 200 measured departures—8587
08:0085.6%8.7 min1,0521,075
09:0088.0%3.2 min515520
10:0082.4%13.3 min693716
11:0080.0%11.1 min380385
12:00Fewer than 200 measured departures—163170
13:0075.9%15.8 min613634
14:00Fewer than 200 measured departures—182188
15:0072.9%22.7 min920956
16:0075.5%13.7 min265272
17:0069.3%30.6 min880907
18:0072.9%19.7 min490520
19:00Fewer than 200 measured departures—139148
20:0065.5%32.6 min339364
21:00Fewer than 200 measured departures—3739
22:0069.3%20.0 min316338
23:00Fewer than 200 measured departures—6163

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 80.1% · 1,273 recorded · 1,205 measured · Source: the US BTS Tuesday · 80.4% · 1,155 recorded · 1,132 measured · Source: the US BTS Wednesday · 79.6% · 1,134 recorded · 1,100 measured · Source: the US BTS Thursday · 79.3% · 1,214 recorded · 1,181 measured · Source: the US BTS Friday · 77.1% · 1,219 recorded · 1,190 measured · Source: the US BTS Saturday · 80.4% · 1,172 recorded · 1,130 measured · Source: the US BTS Sunday · 73.4% · 1,266 recorded · 1,220 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 16.4 min · 1,273 recorded · 1,205 measured · Source: the US BTS Tuesday · 14.3 min · 1,155 recorded · 1,132 measured · Source: the US BTS Wednesday · 13.0 min · 1,134 recorded · 1,100 measured · Source: the US BTS Thursday · 15.6 min · 1,214 recorded · 1,181 measured · Source: the US BTS Friday · 17.6 min · 1,219 recorded · 1,190 measured · Source: the US BTS Saturday · 13.0 min · 1,172 recorded · 1,130 measured · Source: the US BTS Sunday · 22.2 min · 1,266 recorded · 1,220 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 1,273 · 1,273 recorded · 1,205 measured · Source: the US BTS Tuesday · 1,155 · 1,155 recorded · 1,132 measured · Source: the US BTS Wednesday · 1,134 · 1,134 recorded · 1,100 measured · Source: the US BTS Thursday · 1,214 · 1,214 recorded · 1,181 measured · Source: the US BTS Friday · 1,219 · 1,219 recorded · 1,190 measured · Source: the US BTS Saturday · 1,172 · 1,172 recorded · 1,130 measured · Source: the US BTS Sunday · 1,266 · 1,266 recorded · 1,220 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.1%16.4 min1,2051,273
Tuesday80.4%14.3 min1,1321,155
Wednesday79.6%13.0 min1,1001,134
Thursday79.3%15.6 min1,1811,214
Friday77.1%17.6 min1,1901,219
Saturday80.4%13.0 min1,1301,172
Sunday73.4%22.2 min1,2201,266

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 · 70.8% · 550 recorded · 541 measured · Source: the US BTS Feb · 78.4% · 506 recorded · 504 measured · Source: the US BTS Mar · 73.5% · 793 recorded · 717 measured · Source: the US BTS Apr · 80.4% · 979 recorded · 937 measured · Source: the US BTS May · 81.1% · 851 recorded · 843 measured · Source: the US BTS Jun · 81.1% · 971 recorded · 956 measured · Source: the US BTS Jul · 74.8% · 901 recorded · 882 measured · Source: the US BTS Aug · 79.9% · 479 recorded · 462 measured · Source: the US BTS Sep · 84.2% · 389 recorded · 385 measured · Source: the US BTS Oct · 88.6% · 627 recorded · 624 measured · Source: the US BTS Nov · 83.4% · 733 recorded · 676 measured · Source: the US BTS Dec · 66.7% · 654 recorded · 631 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 23.8 min · 550 recorded · 541 measured · Source: the US BTS Feb · 16.8 min · 506 recorded · 504 measured · Source: the US BTS Mar · 24.1 min · 793 recorded · 717 measured · Source: the US BTS Apr · 16.3 min · 979 recorded · 937 measured · Source: the US BTS May · 12.6 min · 851 recorded · 843 measured · Source: the US BTS Jun · 14.2 min · 971 recorded · 956 measured · Source: the US BTS Jul · 16.6 min · 901 recorded · 882 measured · Source: the US BTS Aug · 14.2 min · 479 recorded · 462 measured · Source: the US BTS Sep · 5.9 min · 389 recorded · 385 measured · Source: the US BTS Oct · 3.9 min · 627 recorded · 624 measured · Source: the US BTS Nov · 11.0 min · 733 recorded · 676 measured · Source: the US BTS Dec · 31.8 min · 654 recorded · 631 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 550 · 550 recorded · 541 measured · Source: the US BTS Feb · 506 · 506 recorded · 504 measured · Source: the US BTS Mar · 793 · 793 recorded · 717 measured · Source: the US BTS Apr · 979 · 979 recorded · 937 measured · Source: the US BTS May · 851 · 851 recorded · 843 measured · Source: the US BTS Jun · 971 · 971 recorded · 956 measured · Source: the US BTS Jul · 901 · 901 recorded · 882 measured · Source: the US BTS Aug · 479 · 479 recorded · 462 measured · Source: the US BTS Sep · 389 · 389 recorded · 385 measured · Source: the US BTS Oct · 627 · 627 recorded · 624 measured · Source: the US BTS Nov · 733 · 733 recorded · 676 measured · Source: the US BTS Dec · 654 · 654 recorded · 631 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan70.8%23.8 min541550
Feb78.4%16.8 min504506
Mar73.5%24.1 min717793
Apr80.4%16.3 min937979
May81.1%12.6 min843851
Jun81.1%14.2 min956971
Jul74.8%16.6 min882901
Aug79.9%14.2 min462479
Sep84.2%5.9 min385389
Oct88.6%3.9 min624627
Nov83.4%11.0 min676733
Dec66.7%31.8 min631654

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 76.0% 6,408
  • Delayed >15 min 20.8% 1,750
  • Cancelled 3.3% 275
  • 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

92
92 of 92
Flight numbersBy direction DeparturesOn time
OO5375 ORD → GRB 374 87.0%
OO5285 GRB → ORD 373 85.2%
OO5213 GRB → ORD 353 84.5%
OO5637 ORD → GRB 273 75.4%
OO4761 GRB → ORD 223 70.3%
OO4739 ORD → GRB 218 72.0%
MQ3570 GRB → ORD 150 90.6%
OO4787 GRB → ORD 148 85.7%
OO5219 ORD → GRB 142 66.7%
MQ3673 ORD → GRB 140 76.3%
MQ3663 ORD → GRB 130 66.4%
MQ3892 GRB → ORD 104 91.3%
MQ3918 ORD → GRB 84 85.5%
MQ3918 GRB → ORD 84 86.6%
OO5545 ORD → GRB 81 77.9%
MQ3415 ORD → GRB 72 83.3%
MQ3415 GRB → ORD 72 79.2%
OO5320 GRB → ORD 72 84.1%
OO5907 ORD → GRB 72 72.1%
OO5608 ORD → GRB 71 67.6%
OO5792 GRB → ORD 71 77.5%
MQ3545 GRB → ORD 68 78.1%
MQ3337 ORD → GRB 62 75.8%
MQ3337 GRB → ORD 62 67.7%
MQ3833 ORD → GRB 62 62.3%
MQ3849 ORD → GRB 62 91.9%
MQ3852 GRB → ORD 62 82.3%
MQ3888 ORD → GRB 62 74.2%
MQ3888 GRB → ORD 61 74.6%
MQ4121 GRB → ORD 59 94.9%
MQ3546 ORD → GRB 58 96.6%
MQ3546 GRB → ORD 58 96.5%
MQ3847 GRB → ORD 58 51.8%
MQ3530 GRB → ORD 53 92.0%
OO4742 ORD → GRB 50 76.6%
OO5363 GRB → ORD 50 73.9%
OO5839 ORD → GRB 48 93.6%
OO5580 ORD → GRB 46 73.9%
OO4647 GRB → ORD 45 71.4%
OO5476 ORD → GRB 45 65.9%
MQ3543 GRB → ORD 44 83.7%
MQ3543 ORD → GRB 44 81.0%
MQ3613 ORD → GRB 44 77.3%
MQ3613 GRB → ORD 44 76.7%
MQ3614 ORD → GRB 44 86.4%
MQ3633 ORD → GRB 44 69.1%
MQ3984 GRB → ORD 44 88.6%
MQ3545 ORD → GRB 42 71.8%
OO5365 GRB → ORD 41 63.9%
OO5523 ORD → GRB 41 75.0%
OO4681 GRB → ORD 37 91.2%
OO5615 ORD → GRB 37 75.7%
MQ3393 ORD → GRB 36 66.7%
OO5266 GRB → ORD 36 97.2%
YX3451 ORD → GRB 36 80.0%
YX3595 GRB → ORD 36 87.5%
YX3665 ORD → GRB 36 82.4%
MQ3397 ORD → GRB 35 61.8%
MQ3444 GRB → ORD 35 94.1%
MQ3491 GRB → ORD 35 62.9%
OO4808 GRB → ORD 35 81.8%
OO5268 ORD → GRB 35 87.9%
OO5547 ORD → GRB 35 77.1%
YX3472 ORD → GRB 35 78.8%
MQ3426 ORD → GRB 34 58.6%
MQ3807 GRB → ORD 34 78.8%
MQ3729 ORD → GRB 33 90.9%
MQ3807 ORD → GRB 33 87.1%
MQ3893 ORD → GRB 33 84.9%
OO5211 GRB → ORD 32 75.0%
OO5214 GRB → ORD 32 65.5%
OO5234 GRB → ORD 32 82.8%
OO5321 ORD → GRB 32 79.3%
OO5327 ORD → GRB 32 71.0%
OO5332 ORD → GRB 32 48.3%
MQ3527 GRB → ORD 31 93.6%
MQ3953 GRB → ORD 31 87.1%
MQ4138 ORD → GRB 31 90.3%
MQ4138 GRB → ORD 31 87.1%
OO4773 GRB → ORD 31 93.3%
YX3469 GRB → ORD 31 80.7%
YX3576 GRB → ORD 31 90.0%
MQ3401 GRB → ORD 30 85.2%
MQ3402 ORD → GRB 30 70.8%
MQ3410 GRB → ORD 30 78.6%
MQ3493 GRB → ORD 30 96.7%
MQ3527 ORD → GRB 30 93.3%
MQ3550 ORD → GRB 30 81.5%
MQ3581 GRB → ORD 30 66.7%
MQ3581 ORD → GRB 30 74.1%
MQ4208 ORD → GRB 30 70.0%
MQ4309 ORD → GRB 30 92.9%

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 362 −30.4% 11 83.7%
June 2026 406 −26.2% 15 82.0%
May 2026 430 +4.1% 4 75.6%
April 2026 586 +67.0% 39 75.4%
March 2026 485 +109.1% 73 75.1%
February 2026 326 +83.1% 0 79.4%
January 2026 323 +48.2% 4 69.7%
December 2025 474 +201.9% 20 61.2%
November 2025 493 +169.4% 50 81.5%
October 2025 424 +112.0% 3 87.7%
September 2025 385 4 84.2%
August 2025 462 17 79.9%
July 2025 520 8 68.7%
June 2025 550 0 80.4%
May 2025 413 4 86.9%
April 2025 351 3 88.6%
March 2025 232 3 70.3%
February 2025 178 2 76.4%
January 2025 218 5 72.5%
December 2024 157 3 83.4%
November 2024 183 7 88.5%
October 2024 200 0 90.5%

How to read this chart

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