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	ROC	ORD	2h 13m	78%	2.7%	1,137	Flying now
United	ROC	ORD	2h 11m	74%	2.3%	1,320	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	ROC 06:16 → DTW 07:34DL 1752	2h 41m Detroit	DTW 10:15 → ORD 10:50DL 3673 · flown by SkyWest	5h 34m	97%	87%
American Details →	ROC 06:05 → BOS 07:35AA 4806 · flown by Republic	2h 54m Boston	BOS 10:29 → ORD 12:30AA 3022	7h 24m	97%	86%
United Details →	ROC 06:10 → IAD 07:31UA 4578 · flown by GoJet	3h 00m Dulles	IAD 10:31 → ORD 11:53UA 1252	6h 43m	94%	83%
American Details →	ROC 06:05 → PHL 07:32AA 5930 · flown by Piedmont	3h 03m Philadelphia	PHL 10:35 → ORD 12:09AA 1041	7h 04m	98%	80%
American Details →	ROC 05:00 → CLT 06:54AA 1058	2h 48m Charlotte	CLT 09:42 → ORD 11:00AA 1038	7h 00m	98%	79%
American Details →	ROC 05:33 → DCA 06:59AA 5351 · flown by PSA	1h 26m Washington	DCA 08:25 → ORD 10:00AA 4360 · flown by Republic	5h 24m	94%	77%
United Details →	ROC 06:00 → EWR 07:20UA 3626 · flown by Republic	2h 00m Newark	EWR 09:20 → ORD 11:04UA 2290	6h 04m	98%	75%
Delta Details →	ROC 05:30 → JFK 06:59DL 5318 · flown by Endeavor	3h 31m New York	JFK 10:30 → ORD 12:20DL 5119 · flown by Endeavor	7h 50m	97%	73%
Tight connection: often missed
American Details →	ROC 15:13 → PHL 16:42AA 5907 · flown by Piedmont	58m Philadelphia	PHL 17:40 → ORD 19:26AA 1012	5h 13m	73%	37%
Delta Details →	ROC 12:35 → LGA 13:55DL 5340 · flown by Endeavor	50m New York	LGA 14:45 → ORD 16:45DL 2226	5h 10m	64%	36%
American Details →	ROC 17:43 → DCA 19:15AA 5375 · flown by PSA	51m Washington	DCA 20:06 → ORD 21:42AA 2903	4h 59m	45%	28%

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

DTW · 1h 17m · leaves 09:55 6%

CLT · 52m · leaves 05:00 10%

ATL · 50m · leaves 06:00 22%

Afternoon and evening

PHL · 58m · leaves 15:13 27%

DCA · 51m · leaves 17:43 55%

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.


Delta DL 1752 ROC 06:16 → DTW American AA 4103 DTW 10:33 → ORD Connection details →	2h 59m	5h 52m	97%	91%
Southwest WN 4680 ROC 06:10 → BWI United UA 704 BWI 10:32 → ORD Connection details →	3h 07m	6h 38m	98%	89%
American AA 1058 ROC 05:00 → CLT United UA 4680 CLT 10:35 → ORD Connection details →	3h 41m	7h 59m	98%	82%

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