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

Connect in the morning. The same one-hour layover misses 7% of the time at 8 am and 18% of the time at 4 pm.

Nonstops


American	GSP	PHL	1h 52m	85%	2.2%	1,095	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 →	GSP 07:10 → DTW 09:00DL 876	1h 10m Detroit	DTW 10:10 → PHL 11:46DL 2331	4h 39m	98%	82%
Delta Details →	GSP 06:45 → ATL 07:49DL 1146	3h 32m Atlanta	ATL 11:21 → PHL 13:24DL 2279	6h 41m	98%	81%
Delta Details →	GSP 05:44 → ATL 06:45DL 3028	2h 10m Atlanta	ATL 08:55 → PHL 10:57DL 2270	5h 17m	99%	81%
United Details →	GSP 06:10 → ORD 07:30UA 4728 · flown by SkyWest	1h 36m Chicago	ORD 09:06 → PHL 12:25UA 2752	6h 15m	97%	76%
American Details →	GSP 07:00 → CLT 08:16AA 5654 · flown by PSA	2h 44m Charlotte	CLT 11:00 → PHL 12:43AA 2498	5h 43m	96%	75%
American Details →	GSP 09:04 → CLT 10:25AA 5798 · flown by Piedmont	2h 37m Charlotte	CLT 13:02 → PHL 14:50AA 2573	5h 46m	98%	73%
American Details →	GSP 07:20 → ORD 08:46AA 3385 · flown by Envoy	2h 54m Chicago	ORD 11:40 → PHL 14:54AA 1743	7h 34m	100%	72%
Southwest Details →	GSP 07:00 → BNA 07:10WN 4705	3h 05m Nashville	BNA 10:15 → PHL 13:20WN 623	6h 20m	100%	72%
Tight connection: often missed
American Details →	GSP 07:01 → DFW 08:44AA 1254	54m Dallas-Fort Worth	DFW 09:38 → PHL 14:00AA 402	6h 59m	73%	52%
American Details →	GSP 11:33 → ORD 12:45AA 3556 · flown by Envoy	47m Chicago	ORD 13:32 → PHL 16:49AA 1859	5h 16m	72%	47%
American Details →	GSP 13:40 → DFW 15:22AA 3986 · flown by Envoy	48m Dallas-Fort Worth	DFW 16:10 → PHL 20:53AA 2973	7h 13m	70%	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

DTW · 1h 10m · leaves 07:10 2%

ATL · 1h 06m · leaves 06:45 7%

CLT · 1h 13m · leaves 07:00 10%

Afternoon and evening

CLT · 49m · leaves 16:07 38%

DFW · 1h 04m · leaves 17:28 41%

DTW · 47m · leaves 18:55 43%

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 1619 GSP 08:52 → ATL American AA 4338 ATL 12:25 → PHL Connection details →	2h 28m	5h 44m	96%	89%
Southwest WN 4705 GSP 07:00 → BNA American AA 5576 BNA 08:57 → PHL Connection details →	1h 47m	5h 06m	94%	82%
Delta DL 3028 GSP 05:44 → ATL American AA 5037 ATL 09:50 → PHL Connection details →	3h 05m	6h 15m	99%	79%

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