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

No clear winner: airlines and hours on this route all land within a few points of 3 in 4 on time.

Nonstops


American	ORD	ROC	1h 52m	77%	3.3%	1,138	Flying now
United	ORD	ROC	1h 53m	73%	1.6%	1,322	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.


United Details →	ORD 06:30 → IAD 09:24UA 1689	3h 26m Dulles	IAD 12:50 → ROC 14:18UA 4485 · flown by GoJet	6h 48m	100%	84%
United Details →	ORD 06:00 → EWR 09:12UA 2295	1h 05m Newark	EWR 10:17 → ROC 11:40UA 3647 · flown by Republic	4h 40m	94%	83%
United Details →	ORD 15:53 → IAD 19:02UA 2437	3h 35m Dulles	IAD 22:37 → ROC 23:58UA 4394 · flown by GoJet	7h 05m	97%	76%
American Details →	ORD 05:07 → CLT 08:10AA 2842	1h 14m Charlotte	CLT 09:24 → ROC 11:35AA 5377 · flown by PSA	5h 28m	94%	73%
Delta Details →	ORD 09:45 → ATL 12:51DL 1178	2h 24m Atlanta	ATL 15:15 → ROC 17:23DL 2047	6h 38m	99%	72%
American Details →	ORD 15:19 → PHL 18:29AA 2925	3h 41m Philadelphia	PHL 22:10 → ROC 23:41AA 6090 · flown by Piedmont	7h 22m	94%	72%
American Details →	ORD 08:29 → PHL 11:41AA 471	1h 36m Philadelphia	PHL 13:17 → ROC 14:48AA 5907 · flown by Piedmont	5h 16m	91%	70%
United Details →	ORD 11:07 → IAD 14:12UA 1869	3h 18m Dulles	IAD 17:30 → ROC 19:05UA 4871 · flown by CommuteAir	6h 58m	99%	70%
Tight connection: often missed
Delta Details →	ORD 11:23 → ATL 14:25DL 1147	50m Atlanta	ATL 15:15 → ROC 17:23DL 2047	5h 00m	73%	53%
American Details →	ORD 13:32 → PHL 16:49AA 1859	51m Philadelphia	PHL 17:40 → ROC 19:14AA 6108 · flown by Piedmont	4h 42m	62%	36%
Delta Details →	ORD 18:00 → JFK 21:40DL 4783 · flown by Endeavor	1h 19m New York	JFK 22:59 → ROC 00:53 +1DL 5297 · flown by Endeavor	5h 53m	69%	36%

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.

Morning

EWR · 1h 05m · leaves 06:00 6%

LGA · 1h 10m · leaves 06:00 6%

CLT · 1h 14m · leaves 05:07 6%

Afternoon and evening

PHL · 51m · leaves 13:32 38%

DCA · 1h 13m · leaves 17:56 38%

LGA · 48m · leaves 17:35 58%

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.


United UA 2038 ORD 07:15 → PHL American AA 5907 PHL 13:17 → ROC Connection details →	2h 47m	6h 30m	99%	77%
United UA 530 ORD 09:07 → ATL Delta DL 2047 ATL 15:15 → ROC Connection details →	2h 53m	7h 16m	97%	71%
United UA 1117 ORD 09:15 → BOS American AA 4709 BOS 16:19 → ROC Connection details →	3h 22m	7h 42m	97%	70%

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