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

No clear winner: American’s ROC → PHL flights land within a few points of 84% on time whatever the hour.

Nonstops


American	ROC	PHL	1h 26m	84%	1.9%	1,288	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Philadelphia on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	ROC 06:16 → DTW 07:34DL 1752	2h 36m Detroit	DTW 10:10 → PHL 11:46DL 2331	5h 33m	97%	84%
American Details →	ROC 06:05 → BOS 07:35AA 4806 · flown by Republic	2h 02m Boston	BOS 09:37 → PHL 11:12AA 3225	5h 07m	96%	81%
Delta Details →	ROC 06:00 → ATL 08:12DL 1200	3h 09m Atlanta	ATL 11:21 → PHL 13:24DL 2279	7h 26m	99%	80%
American Details →	ROC 05:00 → CLT 06:54AA 1058	1h 01m Charlotte	CLT 07:55 → PHL 09:41AA 3046	4h 41m	92%	80%
American Details →	ROC 05:00 → ORD 05:54AA 4247 · flown by Envoy	2h 35m Chicago	ORD 08:29 → PHL 11:41AA 471	6h 41m	100%	79%
United Details →	ROC 10:28 → IAD 11:49UA 4476 · flown by GoJet	1h 06m Dulles	IAD 12:55 → PHL 14:10UA 3541 · flown by Republic	3h 42m	88%	77%
United Details →	ROC 06:10 → IAD 07:31UA 4578 · flown by GoJet	1h 04m Dulles	IAD 08:35 → PHL 09:45UA 4015 · flown by Mesa	3h 35m	91%	71%
Delta Details →	ROC 18:21 → ATL 20:35DL 2047	2h 20m Atlanta	ATL 22:55 → PHL 00:59 +1DL 2642	6h 39m	95%	70%
Tight connection: often missed
American Details →	ROC 18:55 → CLT 21:00AA 2424	1h 29m Charlotte	CLT 22:29 → PHL 00:17 +1AA 2189	5h 22m	75%	54%
United Details →	ROC 19:54 → IAD 21:16UA 4861 · flown by CommuteAir	54m Dulles	IAD 22:10 → PHL 23:20UA 3502 · flown by Republic	3h 26m	72%	42%

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

CLT · 1h 01m · leaves 05:00 8%

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.


American AA 4806 ROC 06:05 → BOS Delta DL 5805 BOS 10:50 → PHL Connection details →	3h 15m	6h 23m	97%	81%
American AA 4247 ROC 05:00 → ORD United UA 2752 ORD 09:06 → PHL Connection details →	3h 12m	7h 25m	100%	78%
Delta DL 1200 ROC 06:00 → ATL American AA 5037 ATL 09:50 → PHL Connection details →	1h 38m	5h 59m	81%	64%

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