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

No clear winner: United’s IAD → ROC flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


United	IAD	ROC	1h 27m	81%	2.5%	1,259	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. Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAD 08:15 → ORD 09:36UA 1775	2h 16m Chicago	ORD 11:52 → ROC 14:49UA 3629 · flown by Republic	6h 34m	98%	90%
United Details →	IAD 06:33 → EWR 07:52UA 2147	2h 25m Newark	EWR 10:17 → ROC 11:40UA 3647 · flown by Republic	5h 07m	100%	88%
Delta Details →	IAD 06:00 → DTW 07:40DL 3826 · flown by SkyWest	2h 40m Detroit	DTW 10:20 → ROC 11:46DL 4120 · flown by SkyWest	5h 46m	96%	78%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	1h 37m Atlanta	ATL 09:23 → ROC 11:31DL 2511	5h 32m	95%	76%
Delta Details →	IAD 11:10 → DTW 12:44DL 2884	1h 41m Detroit	DTW 14:25 → ROC 15:48DL 5211 · flown by Endeavor	4h 38m	100%	71%
American Details →	IAD 05:03 → CLT 06:35AA 5054 · flown by PSA	2h 49m Charlotte	CLT 09:24 → ROC 11:35AA 5377 · flown by PSA	6h 32m	94%	70%
Delta Details →	IAD 10:21 → ATL 12:05DL 1324	3h 10m Atlanta	ATL 15:15 → ROC 17:23DL 2047	7h 02m	97%	69%
United Details →	IAD 10:31 → ORD 11:53UA 1252	2h 02m Chicago	ORD 13:55 → ROC 16:45UA 1239	6h 14m	98%	67%
Tight connection: often missed
United Details →	IAD 15:39 → ORD 17:02UA 1393	1h 27m Chicago	ORD 18:29 → ROC 21:22UA 1568	5h 43m	73%	45%

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 4015 IAD 08:35 → PHL American AA 5907 PHL 13:17 → ROC Connection details →	3h 32m	6h 10m	100%	75%
United UA 4534 IAD 17:35 → PHL American AA 6090 PHL 22:10 → ROC Connection details →	3h 16m	6h 06m	91%	63%
United UA 6246 IAD 17:22 → DTW Delta DL 3148 DTW 21:35 → ROC Connection details →	2h 33m	5h 32m	90%	61%

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