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

No clear winner: Delta’s ROC → LGA flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops (seasonal or thin)


Delta	ROC	LGA	1h 21m	74%	6.4%	974	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach New York 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 31m Detroit	DTW 10:05 → LGA 11:50DL 2589	5h 34m	97%	81%
American Details →	ROC 05:00 → ORD 05:54AA 4247 · flown by Envoy	2h 06m Chicago	ORD 08:00 → LGA 11:19AA 2079	6h 19m	100%	81%
Delta Details →	ROC 06:00 → ATL 08:12DL 1200	2h 18m Atlanta	ATL 10:30 → LGA 12:44DL 371	6h 44m	97%	79%
American Details →	ROC 05:00 → CLT 06:54AA 1058	2h 26m Charlotte	CLT 09:20 → LGA 11:15AA 1150	6h 15m	98%	74%
American Details →	ROC 05:33 → DCA 06:59AA 5351 · flown by PSA	3h 00m Washington	DCA 09:59 → LGA 11:25AA 4491 · flown by Republic	5h 52m	95%	74%
American Details →	ROC 06:05 → BOS 07:35AA 4806 · flown by Republic	3h 19m Boston	BOS 10:54 → LGA 12:18AA 4373 · flown by Republic	6h 12m	98%	74%
United Details →	ROC 06:20 → ORD 07:28UA 1778	2h 35m Chicago	ORD 10:03 → LGA 13:26UA 669	7h 06m	94%	74%
Delta Details →	ROC 09:55 → DTW 11:18DL 5240 · flown by Endeavor	2h 44m Detroit	DTW 14:02 → LGA 15:55DL 2602	6h 00m	98%	71%
Tight connection: often missed
American Details →	ROC 11:51 → DCA 13:19AA 5374 · flown by PSA	1h 37m Washington	DCA 14:56 → LGA 16:33AA 4773 · flown by Republic	4h 39m	74%	40%
United Details →	ROC 19:54 → IAD 21:16UA 4861 · flown by CommuteAir	49m Dulles	IAD 22:05 → LGA 23:30UA 3682 · flown by Republic	3h 36m	57%	23%

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

ORD · 1h 05m · leaves 05:00 1%

ATL · 1h 18m · leaves 06:00 8%

DTW · 57m · leaves 09:55 13%

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 4247 ROC 05:00 → ORD United UA 2092 ORD 08:00 → LGA Connection details →	2h 06m	6h 17m	99%	84%
Delta DL 1752 ROC 06:16 → DTW American AA 4415 DTW 10:40 → LGA Connection details →	3h 06m	6h 15m	97%	78%
American AA 4806 ROC 06:05 → BOS Delta DL 5744 BOS 10:00 → LGA Connection details →	2h 25m	5h 10m	96%	76%

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