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 1 time in 10 at 8 am and 1 time in 3 at 7 pm.

Nonstops


American	PHL	GSP	2h 03m	80%	2.2%	1,095	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	PHL 06:00 → CLT 07:53AA 3139	3h 14m Charlotte	CLT 11:07 → GSP 12:14AA 5802 · flown by Piedmont	6h 14m	99%	91%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	2h 35m Atlanta	ATL 09:57 → GSP 10:57DL 2158	5h 42m	98%	90%
Delta Details →	PHL 06:25 → ATL 08:32DL 1152	2h 43m Atlanta	ATL 11:15 → GSP 12:18DL 1725	5h 53m	99%	87%
Delta Details →	PHL 08:05 → ATL 10:12DL 1180	3h 00m Atlanta	ATL 13:12 → GSP 14:13DL 1273	6h 08m	97%	83%
American Details →	PHL 05:15 → ORD 06:38AA 1652	1h 22m Chicago	ORD 08:00 → GSP 11:03AA 3556 · flown by Envoy	5h 46m	89%	81%
United Details →	PHL 06:10 → IAD 07:19UA 3693 · flown by Republic	56m Dulles	IAD 08:15 → GSP 09:55UA 4961 · flown by CommuteAir	3h 45m	94%	79%
American Details →	PHL 08:20 → CLT 10:18AA 1494	2h 47m Charlotte	CLT 13:05 → GSP 14:07AA 5805 · flown by Piedmont	5h 47m	96%	79%
American Details →	PHL 10:35 → ORD 12:09AA 1041	3h 01m Chicago	ORD 15:10 → GSP 18:11AA 3559 · flown by Envoy	7h 37m	100%	78%
Tight connection: often missed
Delta Details →	PHL 17:22 → DTW 19:09DL 1391	56m Detroit	DTW 20:05 → GSP 21:48DL 1561	4h 26m	68%	52%
Delta Details →	PHL 16:08 → ATL 18:25DL 2131	51m Atlanta	ATL 19:16 → GSP 20:20DL 2319	4h 12m	65%	49%
United Details →	PHL 11:38 → ORD 13:06UA 2207	49m Chicago	ORD 13:55 → GSP 17:00UA 5403 · flown by SkyWest	5h 22m	64%	48%

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 12m · leaves 06:00 3%

IAD · 56m · leaves 06:10 6%

DFW · 1h 16m · leaves 09:15 8%

Afternoon and evening

BNA · 1h 03m · leaves 13:55 29%

DTW · 56m · leaves 17:22 32%

ATL · 51m · leaves 16:08 35%

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 5037 PHL 07:00 → ATL Delta DL 1273 ATL 13:12 → GSP Connection details →	3h 53m	7h 13m	97%	81%
Frontier F9 2387 PHL 08:00 → CLT American AA 5805 CLT 13:05 → GSP Connection details →	3h 09m	6h 07m	94%	79%
American AA 4338 PHL 09:32 → ATL Delta DL 3095 ATL 15:07 → GSP Connection details →	3h 14m	6h 38m	100%	78%

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