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, one ticket

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 Details →	MDW 07:00 → BWI 09:45WN 2742	1h 15m Baltimore	BWI 11:00 → ROC 12:15WN 2802	4h 15m	94%	74%
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%
Delta Details →	MDW 11:05 → ATL 14:01DL 1063	1h 14m Atlanta	ATL 15:15 → ROC 17:23DL 2047	5h 18m	93%	67%
Delta Details →	MDW 17:10 → ATL 20:22DL 1728	1h 24m Atlanta	ATL 21:46 → ROC 23:57DL 2472	5h 47m	86%	60%
Southwest Details →	MDW 12:00 → BWI 14:50WN 2744	1h 05m Baltimore	BWI 15:55 → ROC 17:15WN 3789	4h 15m	77%	57%
Southwest Details →	MDW 11:00 → MCO 14:35WN 2818	1h 35m Orlando	MCO 16:10 → ROC 19:00WN 2693	7h 00m	89%	37%
Southwest Details →	MDW 17:20 → BWI 20:15WN 4616	2h 40m Baltimore	BWI 22:55 → ROC 00:20 +1WN 1081	5h 55m	80%	33%
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.


Southwest WN 4122 MDW 07:40 → PHL American AA 5907 PHL 13:17 → ROC Connection details →	2h 35m	6h 05m	100%	78%
Southwest WN 4154 MDW 08:55 → ATL Delta DL 2047 ATL 15:15 → ROC Connection details →	3h 30m	7h 28m	100%	75%
Southwest WN 1405 MDW 09:10 → BOS American AA 4709 BOS 16:19 → ROC Connection details →	3h 51m	7h 47m	100%	72%

Rank all connections, any airlines →

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