Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Southwest’s MDW → ROC flights land within a few points of 2 in 3 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	MDW	ROC	1h 35m	67%	2.0%	496	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Rochester on time. Total trip = scheduled departure to arrival, layover included (Rochester is 1 h ahead of Chicago). Layovers up to 4 hours. Pick a connection for the details.


Southwest + Americantwo ticketsDetails →	MDW 07:40 → PHL 10:42WN 4122	2h 35m Philadelphia	PHL 13:17 → ROC 14:48AA 5907 · flown by Piedmont	6h 05m	100%	78%
Southwest + Deltatwo ticketsDetails →	MDW 08:55 → ATL 11:45WN 4154	3h 30m Atlanta	ATL 15:15 → ROC 17:23DL 2047	7h 28m	100%	75%
Southwest Details →	MDW 07:00 → BWI 09:45WN 2742	1h 15m Baltimore	BWI 11:00 → ROC 12:15WN 2802	4h 15m	94%	74%
Southwest + Americantwo ticketsDetails →	MDW 09:10 → BOS 12:28WN 1405	3h 51m Boston	BOS 16:19 → ROC 17:57AA 4709 · flown by Republic	7h 47m	100%	72%
Southwest + Deltatwo ticketsDetails →	MDW 05:15 → LGA 08:15WN 2801	2h 04m New York	LGA 10:19 → ROC 11:53DL 5340 · flown by Endeavor	5h 38m	97%	72%
Delta Details →	MDW 09:17 → DTW 11:35DL 4674 · flown by Endeavor	2h 50m Detroit	DTW 14:25 → ROC 15:48DL 5211 · flown by Endeavor	5h 31m	98%	70%
Southwest + JetBluetwo ticketsDetails →	MDW 05:10 → MCO 08:40WN 2815	2h 30m Orlando	MCO 11:10 → ROC 13:56B6 1042	7h 46m	100%	65%
Southwest + Americantwo ticketsDetails →	MDW 15:22 → PHL 18:22WN 4948	3h 48m Philadelphia	PHL 22:10 → ROC 23:41AA 6090 · flown by Piedmont	7h 19m	87%	64%
Tight connection: often missed
Southwest Details →	MDW 19:00 → BWI 21:55WN 2745	1h 00m Baltimore	BWI 22:55 → ROC 00:20 +1WN 1081	4h 15m	66%	26%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Afternoon and evening

BWI · 1h 00m · leaves 19:00 34%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON