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 ACK → PHL flights land within a few points of 73% on time whatever the hour.

Nonstops (seasonal or thin)


American	ACK	PHL	1h 44m	73%	4.1%	122	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.


JetBlue Details →	ACK 14:56 → BOS 15:51B6 1151	2h 30m Boston	BOS 18:21 → PHL 20:00B6 2459	5h 04m	93%	59%
American Details →	ACK 11:00 → BOS 12:14AA 4708 · flown by Republic	2h 49m Boston	BOS 15:03 → PHL 16:39AA 2882	5h 39m	98%	51%
Tight connection: often missed
American Details →	ACK 10:45 → DCA 12:32AA 4543 · flown by Republic	58m Washington	DCA 13:30 → PHL 14:38AA 5474 · flown by PSA	3h 53m	74%	47%

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 4708 ACK 11:00 → BOS Delta DL 5706 BOS 15:10 → PHL Connection details →	2h 56m	5h 51m	98%	71%
JetBlue B6 1151 ACK 14:56 → BOS American AA 1147 BOS 19:37 → PHL Connection details →	3h 46m	6h 24m	95%	41%
JetBlue B6 1351 ACK 18:03 → BOS Delta DL 5610 BOS 20:40 → PHL Connection details →	1h 43m	4h 19m	68%	34%

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