PlainFlights

Route · MDW → ROC · 2020–2025 BTS data

Chicago to Rochester

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MDW to ROC (Chicago to Rochester) ranks #4247 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

69.5%
On-time
-9.5 pts
vs US avg
58 min
Delay when late
1,361
Flights
#4247 of 4927
Corpus placement

Cancelled

2.1%

Best Month

Oct 2023 83%

Worst Month

Jul 2023 54%

Distance

523 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Oct 2025 31 5 0 0 WN
Sep 2025 30 6 0 0 WN
Aug 2025 31 9 1 0 WN
Jul 2025 31 10 1 0 WN
Sep 2024 38 6 0 0 WN
Aug 2024 41 12 1 0 WN
Jul 2024 62 21 0 0 WN
Jun 2024 58 17 0 0 WN
May 2024 45 28 0 0 WN
Apr 2024 38 16 0 0 WN
Jan 2024 30 12 2 0 WN
Nov 2023 31 1 0 0 WN
Oct 2023 53 9 0 0 WN
Sep 2023 53 17 0 0 WN
Aug 2023 56 14 0 0 WN
Jul 2023 52 24 0 0 WN
Jun 2023 52 11 0 0 WN
May 2023 54 15 0 0 WN
Apr 2023 50 14 0 0 WN
Mar 2023 54 10 2 0 WN
Feb 2023 48 8 0 0 WN
Jan 2023 54 11 2 0 WN
Dec 2022 57 13 14 0 WN
Nov 2022 56 16 0 1 WN

MDW–ROC seasonal on-time pattern

Best: February (83.3%) · weakest: May (56.6%)

50%60%70%80%90% JanFebMarAprMayJunJulAugSepOctNovDec 77.2%

Strongest calendar month

February

83.3% on-time · ~48 flights/mo

Busiest calendar month

December

~57 flights/mo avg

Weakest calendar month

May

56.6% on-time · ~50 flights/mo

Cancellation Rate

2.1%

23 of 1,105 flights

Diversion Rate

0.1%

1 of 1,105 flights

Explore origin & destination

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

MDW - Chicago

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

MDW on-time profile

ROC - Rochester

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

ROC on-time profile

Compare the two airports

See MDW and ROC side by side on delays, cancellations, and reliability.

Compare MDW vs ROC

Origin-hub reliability standing

Softer reliability from MDW

Among 69 routes leaving MDW, only 18 (including this one) clear below 75% on-time, while 0 stay ≥85% and 51 sit mid-band. Travelers comparing MDW options should weigh this 69.5% print against those peers · fleet on-time rank #4849 of 4927.

What the Data Says About MDW to ROC

On-time performance on the MDW to ROC pairing (Chicago to Rochester) trails a chunk of the network: 69.5% of 1,361 tracked flights arrived on schedule, with a 57.9-minute average delay on the ones that ran late. The route spans about 523 miles across 1 carrier. Cancellations over the trailing 24 months hit 2.1% (23 of 1,105 flights), with 0.1% diverted.

The monthly split is wide on this route: Oct 2023 posted the strongest performance at 83% on-time, while Jul 2023 came in at just 54% - a 29-point swing worth factoring into travel timing.

On the multi-year calendar, MDW–ROC peaks in February at 83.3% on-time while December carries the heaviest traffic (~57 flights per month) ; the softest month is May at 56.6%, a 26.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does MDW to ROC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, MDW to ROC ranks #4247 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 MDW to ROC? ▼
Flights from Chicago to Rochester have a 69.5% on-time rate based on 1,361 flights. The average delay is 57.9 minutes. The best recent month was Oct 2023 with 83% on-time.
What is the cancellation rate for MDW to ROC? ▼
Over the last 24 months, 2.1% of flights on this route were cancelled (23 of 1,105 flights) and 0.1% were diverted.
How far is the flight from MDW to ROC? ▼
The flight distance from Chicago (MDW) to Rochester (ROC) is approximately 523 miles. This route is served by 1 carrier.
When is the best time to fly from MDW to ROC? ▼
The best recent month for on-time performance was Oct 2023 (83% on-time). The worst was Jul 2023 (54% on-time). Consider booking during months with historically better performance.

Airports on this route

MDW Airport

Chicago
ROC 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 MDW–ROC data

MDW–ROC sits 9.5 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.

  • Compare MDW and ROC airport profiles: delay causes and top routes differ even on the same corridor. MDW airport
  • If your dates flex, February (83.3% on-time) beats May (56.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 69.5% 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.