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431 km · Domestic

Chicago O'Hare (ORD) – Rochester (RST)

In July 2026, 175 flights operated between Chicago O'Hare and Rochester (both directions), and 69.7% 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 periods16 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January–176–
February–172–
March–168–
April207172▼ 16.9%
May242178▼ 26.4%
June184168▼ 8.7%
July173175▲ 1.2%
August160––
September142––
October174–in progress
November164––
December164––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods16 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January–63.6%–
February–75.6%–
March–70.8%–
April75.4%75.0%▼ 0.5%
May78.5%86.5%▲ 10.2%
June67.4%53.0%▼ 21.4%
July58.4%69.7%▲ 19.3%
August69.4%––
September79.6%––
October59.8%–in progress
November75.6%––
December52.4%––

Cancelled flights by month

The most recent periods16 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January–6–
February–0–
March–20–
April08–
May28▲ 300.0%
June410▲ 150.0%
July511▲ 120.0%
August6––
September2––
October0–in progress
November14––
December16––

Airlines on this route

  1. SkyWest Airlines 58.5%
  2. Envoy Air 40.6%
  3. Republic Airways 0.9%

Oct 1, 2024 – Jul 31, 2026

By direction

ORD → RST

Scheduled flights
1,517
Flights operated
1,461
Cancelled
56 · 3.7%
On-time departures
68.2%

RST → ORD

Scheduled flights
1,517
Flights operated
1,461
Cancelled
56 · 3.7%
On-time departures
72.3%

ORD → RST and RST → ORD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 1,775 58.5% 64.9% 58
Envoy Air MQ 1,231 40.6% 77.4% 54
Republic Airways YX 28 0.9% 92.9% 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 delay11:00–12:0014.8min · 257 recorded · 250 measured
Gap to highest-delay hour38.6min11:00 ↔ 22:00
Recorded flights3,034ORD–RST

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 · 170 recorded · 162 measured · Source: the US BTS 06:00 · 82.6% · 332 recorded · 321 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 51 recorded · 50 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 198 recorded · 192 measured · Source: the US BTS 10:00 · 73.9% · 223 recorded · 222 measured · Source: the US BTS 11:00 · 73.6% · 257 recorded · 250 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 159 recorded · 159 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 53 recorded · 53 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 116 recorded · 113 measured · Source: the US BTS 16:00 · 68.0% · 409 recorded · 397 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 75 recorded · 69 measured · Source: the US BTS 18:00 · 60.8% · 340 recorded · 319 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 60 recorded · 57 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 101 recorded · 100 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 36 recorded · 34 measured · Source: the US BTS 22:00 · 56.7% · 296 recorded · 270 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 34 recorded · 31 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 · 170 recorded · 162 measured · Source: the US BTS 06:00 · 21.7 min · 332 recorded · 321 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 51 recorded · 50 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 198 recorded · 192 measured · Source: the US BTS 10:00 · 16.1 min · 223 recorded · 222 measured · Source: the US BTS 11:00 · 14.8 min · 257 recorded · 250 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 159 recorded · 159 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 105 recorded · 105 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 53 recorded · 53 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 116 recorded · 113 measured · Source: the US BTS 16:00 · 30.6 min · 409 recorded · 397 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 75 recorded · 69 measured · Source: the US BTS 18:00 · 35.9 min · 340 recorded · 319 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 60 recorded · 57 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 101 recorded · 100 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 36 recorded · 34 measured · Source: the US BTS 22:00 · 53.4 min · 296 recorded · 270 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 34 recorded · 31 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 · 170 · 170 recorded · 162 measured · Source: the US BTS 06:00 · 332 · 332 recorded · 321 measured · Source: the US BTS 07:00 · 19 · 19 recorded · 18 measured · Source: the US BTS 08:00 · 51 · 51 recorded · 50 measured · Source: the US BTS 09:00 · 198 · 198 recorded · 192 measured · Source: the US BTS 10:00 · 223 · 223 recorded · 222 measured · Source: the US BTS 11:00 · 257 · 257 recorded · 250 measured · Source: the US BTS 12:00 · 159 · 159 recorded · 159 measured · Source: the US BTS 13:00 · 105 · 105 recorded · 105 measured · Source: the US BTS 14:00 · 53 · 53 recorded · 53 measured · Source: the US BTS 15:00 · 116 · 116 recorded · 113 measured · Source: the US BTS 16:00 · 409 · 409 recorded · 397 measured · Source: the US BTS 17:00 · 75 · 75 recorded · 69 measured · Source: the US BTS 18:00 · 340 · 340 recorded · 319 measured · Source: the US BTS 19:00 · 60 · 60 recorded · 57 measured · Source: the US BTS 20:00 · 101 · 101 recorded · 100 measured · Source: the US BTS 21:00 · 36 · 36 recorded · 34 measured · Source: the US BTS 22:00 · 296 · 296 recorded · 270 measured · Source: the US BTS 23:00 · 34 · 34 recorded · 31 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—162170
06:0082.6%21.7 min321332
07:00Fewer than 200 measured departures—1819
08:00Fewer than 200 measured departures—5051
09:00Fewer than 200 measured departures—192198
10:0073.9%16.1 min222223
11:0073.6%14.8 min250257
12:00Fewer than 200 measured departures—159159
13:00Fewer than 200 measured departures—105105
14:00Fewer than 200 measured departures—5353
15:00Fewer than 200 measured departures—113116
16:0068.0%30.6 min397409
17:00Fewer than 200 measured departures—6975
18:0060.8%35.9 min319340
19:00Fewer than 200 measured departures—5760
20:00Fewer than 200 measured departures—100101
21:00Fewer than 200 measured departures—3436
22:0056.7%53.4 min270296
23:00Fewer than 200 measured departures—3134

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 68.8% · 451 recorded · 433 measured · Source: the US BTS Tuesday · 73.8% · 418 recorded · 408 measured · Source: the US BTS Wednesday · 73.4% · 416 recorded · 406 measured · Source: the US BTS Thursday · 71.4% · 440 recorded · 427 measured · Source: the US BTS Friday · 64.8% · 439 recorded · 418 measured · Source: the US BTS Saturday · 71.2% · 424 recorded · 410 measured · Source: the US BTS Sunday · 68.3% · 446 recorded · 420 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 · 29.1 min · 451 recorded · 433 measured · Source: the US BTS Tuesday · 22.5 min · 418 recorded · 408 measured · Source: the US BTS Wednesday · 29.4 min · 416 recorded · 406 measured · Source: the US BTS Thursday · 23.1 min · 440 recorded · 427 measured · Source: the US BTS Friday · 28.5 min · 439 recorded · 418 measured · Source: the US BTS Saturday · 22.2 min · 424 recorded · 410 measured · Source: the US BTS Sunday · 27.1 min · 446 recorded · 420 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 · 451 · 451 recorded · 433 measured · Source: the US BTS Tuesday · 418 · 418 recorded · 408 measured · Source: the US BTS Wednesday · 416 · 416 recorded · 406 measured · Source: the US BTS Thursday · 440 · 440 recorded · 427 measured · Source: the US BTS Friday · 439 · 439 recorded · 418 measured · Source: the US BTS Saturday · 424 · 424 recorded · 410 measured · Source: the US BTS Sunday · 446 · 446 recorded · 420 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday68.8%29.1 min433451
Tuesday73.8%22.5 min408418
Wednesday73.4%29.4 min406416
Thursday71.4%23.1 min427440
Friday64.8%28.5 min418439
Saturday71.2%22.2 min410424
Sunday68.3%27.1 min420446

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 · Fewer than 200 measured departures · 182 recorded · 176 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 188 recorded · 168 measured · Source: the US BTS Apr · 75.2% · 387 recorded · 379 measured · Source: the US BTS May · 81.9% · 430 recorded · 420 measured · Source: the US BTS Jun · 60.5% · 366 recorded · 352 measured · Source: the US BTS Jul · 64.1% · 364 recorded · 348 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 166 recorded · 160 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 144 recorded · 142 measured · Source: the US BTS Oct · 65.7% · 236 recorded · 236 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 191 recorded · 177 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 208 recorded · 192 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 · Fewer than 200 measured departures · 182 recorded · 176 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 188 recorded · 168 measured · Source: the US BTS Apr · 15.6 min · 387 recorded · 379 measured · Source: the US BTS May · 9.5 min · 430 recorded · 420 measured · Source: the US BTS Jun · 34.2 min · 366 recorded · 352 measured · Source: the US BTS Jul · 37.5 min · 364 recorded · 348 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 166 recorded · 160 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 144 recorded · 142 measured · Source: the US BTS Oct · 30.9 min · 236 recorded · 236 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 191 recorded · 177 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 208 recorded · 192 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 · 182 · 182 recorded · 176 measured · Source: the US BTS Feb · 172 · 172 recorded · 172 measured · Source: the US BTS Mar · 188 · 188 recorded · 168 measured · Source: the US BTS Apr · 387 · 387 recorded · 379 measured · Source: the US BTS May · 430 · 430 recorded · 420 measured · Source: the US BTS Jun · 366 · 366 recorded · 352 measured · Source: the US BTS Jul · 364 · 364 recorded · 348 measured · Source: the US BTS Aug · 166 · 166 recorded · 160 measured · Source: the US BTS Sep · 144 · 144 recorded · 142 measured · Source: the US BTS Oct · 236 · 236 recorded · 236 measured · Source: the US BTS Nov · 191 · 191 recorded · 177 measured · Source: the US BTS Dec · 208 · 208 recorded · 192 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—176182
FebFewer than 200 measured departures—172172
MarFewer than 200 measured departures—168188
Apr75.2%15.6 min379387
May81.9%9.5 min420430
Jun60.5%34.2 min352366
Jul64.1%37.5 min348364
AugFewer than 200 measured departures—160166
SepFewer than 200 measured departures—142144
Oct65.7%30.9 min236236
NovFewer than 200 measured departures—177191
DecFewer than 200 measured departures—192208

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 67.6% 2,052
  • Delayed >15 min 28.7% 870
  • Cancelled 3.7% 112
  • 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

44
44 of 44
Flight numbersBy direction DeparturesOn time
OO6396 ORD → RST 143 50.4%
OO6338 RST → ORD 133 80.5%
MQ4196 ORD → RST 102 80.8%
MQ4196 RST → ORD 102 69.4%
OO4947 ORD → RST 93 72.0%
MQ4174 ORD → RST 72 74.7%
MQ4174 RST → ORD 72 69.0%
OO6291 ORD → RST 71 61.5%
OO6291 RST → ORD 71 52.3%
OO5000 ORD → RST 66 55.0%
OO4945 RST → ORD 62 62.9%
OO4970 ORD → RST 62 49.2%
OO6503 RST → ORD 62 72.6%
OO5002 ORD → RST 61 75.0%
OO6503 ORD → RST 61 77.1%
OO4888 RST → ORD 58 46.3%
OO6493 ORD → RST 58 75.9%
OO6493 RST → ORD 58 74.1%
MQ3854 ORD → RST 55 74.6%
MQ3745 RST → ORD 51 78.4%
MQ3972 ORD → RST 44 86.4%
MQ3972 RST → ORD 44 81.8%
MQ3973 RST → ORD 44 85.4%
MQ3973 ORD → RST 44 79.1%
MQ3974 RST → ORD 44 93.0%
MQ3975 ORD → RST 44 73.2%
MQ4111 RST → ORD 41 84.2%
OO4996 ORD → RST 38 75.0%
OO6360 ORD → RST 37 54.1%
OO5003 RST → ORD 36 57.1%
OO6360 RST → ORD 36 48.6%
MQ3346 ORD → RST 33 96.9%
MQ3949 RST → ORD 33 93.8%
OO6270 RST → ORD 33 93.9%
OO6272 ORD → RST 33 48.5%
OO5012 RST → ORD 31 82.8%
OO6190 RST → ORD 31 80.7%
OO6190 ORD → RST 31 67.7%
MQ3460 ORD → RST 30 72.7%
MQ3461 RST → ORD 30 88.5%
OO4917 RST → ORD 30 96.7%
OO4947 RST → ORD 30 82.8%
OO4951 RST → ORD 30 57.7%
OO4987 RST → ORD 30 93.3%

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 175 +1.2% 11 69.7%
June 2026 168 −8.7% 10 53.0%
May 2026 178 −26.4% 8 86.5%
April 2026 172 −16.9% 8 75.0%
March 2026 168 20 70.8%
February 2026 172 0 75.6%
January 2026 176 6 63.6%
December 2025 164 +485.7% 16 52.4%
November 2025 164 +1,161.5% 14 75.6%
October 2025 174 +180.6% 0 59.8%
September 2025 142 2 79.6%
August 2025 160 6 69.4%
July 2025 173 5 58.4%
June 2025 184 4 67.4%
May 2025 242 2 78.5%
April 2025 207 0 75.4%
December 2024 28 0 92.9%
November 2024 13 0 84.6%
October 2024 62 0 82.3%

How to read this chart

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