PlainFlights

Route · ORD → RST · 2020–2025 BTS data

Chicago to Rochester

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ORD to RST (Chicago to Rochester) ranks #2731 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.2%
On-time
+2.2 pts
vs US avg
75 min
Delay when late
4,394
Flights
#2731 of 4927
Corpus placement

Cancelled

2.4%

Best Month

Feb 2023 92%

Worst Month

Dec 2025 49%

Distance

268 mi

Carriers

8

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 90 46 8 0 MQ,OO
Nov 2025 89 19 7 0 OO,MQ
Oct 2025 87 39 0 0 OO,MQ
Sep 2025 72 18 1 1 MQ,OO
Aug 2025 83 30 2 0 OO,MQ
Jul 2025 89 41 2 0 OO
Jun 2025 94 40 2 0 OO
May 2025 122 24 1 0 OO
Apr 2025 104 26 0 1 OO
Oct 2024 51 8 0 0 MQ
Sep 2024 58 8 0 0 MQ
Aug 2024 31 12 0 0 MQ
Jul 2024 40 24 1 0 MQ
May 2024 57 23 3 0 MQ,OO
Apr 2024 38 10 0 0 MQ
Mar 2024 67 11 0 0 MQ
Oct 2023 48 13 0 3 YX
May 2023 66 15 0 0 MQ,YX
Apr 2023 85 12 2 0 YX,MQ
Mar 2023 93 14 1 0 MQ
Feb 2023 74 6 2 0 MQ,YX
Jan 2023 70 26 4 0 MQ
Dec 2022 61 17 3 1 OO,MQ
Nov 2022 59 9 2 0 OO,MQ

ORD–RST seasonal on-time pattern

Best: November (89.2%) · weakest: July (74.1%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 75.1%

Strongest calendar month

November

89.2% on-time · ~79 flights/mo

Busiest calendar month

June

~101 flights/mo avg

Weakest calendar month

July

74.1% on-time · ~80 flights/mo

Cancellation Rate

2.4%

41 of 1,728 flights

Diversion Rate

0.3%

6 of 1,728 flights

Explore origin & destination

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

ORD - Chicago

Full on-time, delay-cause, and seasonal performance for Chicago, IL.

ORD on-time profile

RST - Rochester

Full on-time, delay-cause, and seasonal performance for Rochester, MN.

RST on-time profile

Compare the two airports

See ORD and RST side by side on delays, cancellations, and reliability.

Compare ORD vs RST

Origin-hub reliability standing

Mid-pack among ORD departures

From ORD, this corridor sits with 147 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 11 below 75%). Destination: Rochester · fleet on-time rank #2662 of 4927.

What the Data Says About ORD to RST

4,394 tracked flights put the ORD to RST pairing (Chicago to Rochester) at a 81.2% on-time rate, squarely in line with the wider network. Delays that do occur run 75.1 minutes on average. Across the 268-mile route and its 8 carriers, the trailing 24 months show 2.4% cancelled and 0.3% diverted (1,728 flights sampled).

The monthly split is wide on this route: Feb 2023 posted the strongest performance at 92% on-time, while Dec 2025 came in at just 49% - a 43-point swing worth factoring into travel timing.

On the multi-year calendar, ORD–RST peaks in November at 89.2% on-time while June carries the heaviest traffic (~101 flights per month) ; the softest month is July at 74.1%, a 15.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ORD to RST rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, ORD to RST ranks #2731 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 ORD to RST? ▼
Flights from Chicago to Rochester have a 81.2% on-time rate based on 4,394 flights. The average delay is 75.1 minutes. The best recent month was Feb 2023 with 92% on-time.
What is the cancellation rate for ORD to RST? ▼
Over the last 24 months, 2.4% of flights on this route were cancelled (41 of 1,728 flights) and 0.3% were diverted.
How far is the flight from ORD to RST? ▼
The flight distance from Chicago (ORD) to Rochester (RST) is approximately 268 miles. This route is served by 8 carriers.
When is the best time to fly from ORD to RST? ▼
The best recent month for on-time performance was Feb 2023 (92% on-time). The worst was Dec 2025 (49% on-time). Consider booking during months with historically better performance.

Airports on this route

ORD Airport

Chicago
RST Airport

Rochester
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 ORD–RST data

ORD–RST is mid-pack at 81.2% on-time; month and carrier mix move more than the corridor headline.

  • Compare ORD and RST airport profiles: delay causes and top routes differ even on the same corridor. ORD airport
  • If your dates flex, November (89.2% on-time) beats July (74.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.2% 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.