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 8% of the time at 8 am and 30% of the time at 5 pm.

Nonstops


American	PHL	GSO	1h 43m	87%	2.3%	1,057	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Greensboro 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 19m Charlotte	CLT 11:12 → GSO 12:17AA 5796 · flown by Piedmont	6h 17m	99%	86%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	2h 53m Atlanta	ATL 10:15 → GSO 11:34DL 3052	6h 19m	99%	82%
Delta Details →	PHL 10:40 → ATL 12:54DL 1100	1h 36m Atlanta	ATL 14:30 → GSO 15:50DL 2539	5h 10m	97%	80%
American Details →	PHL 15:52 → CLT 17:57AA 3152	3h 13m Charlotte	CLT 21:10 → GSO 22:11AA 4054 · flown by Envoy	6h 17m	98%	79%
Delta Details →	PHL 08:05 → ATL 10:12DL 1180	2h 24m Atlanta	ATL 12:36 → GSO 13:49DL 3060	5h 46m	94%	76%
American Details →	PHL 10:30 → CLT 12:23AA 1180	2h 18m Charlotte	CLT 14:41 → GSO 15:46AA 5797 · flown by Piedmont	5h 16m	93%	76%
Delta Details →	PHL 06:10 → DTW 07:50DL 1540	1h 04m Detroit	DTW 08:54 → GSO 10:41DL 4966 · flown by Endeavor	4h 31m	92%	74%
American Details →	PHL 07:39 → ORD 09:08AA 3074	1h 22m Chicago	ORD 10:30 → GSO 13:34AA 3744 · flown by Envoy	5h 55m	91%	74%
Tight connection: often missed
Delta Details →	PHL 17:12 → ATL 19:20DL 1692	1h 37m Atlanta	ATL 20:57 → GSO 22:19DL 1617	5h 07m	75%	53%
American Details →	PHL 15:45 → ORD 17:29AA 470	1h 13m Chicago	ORD 18:42 → GSO 21:51AA 3648 · flown by Envoy	6h 04m	70%	51%
American Details →	PHL 11:02 → DFW 13:38AA 417	50m Dallas-Fort Worth	DFW 14:28 → GSO 18:08AA 1894	7h 05m	65%	32%

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 04m · leaves 06:10 8%

IAD · 1h 03m · leaves 10:39 14%

ATL · 48m · leaves 05:15 14%

Afternoon and evening

CLT · 1h 05m · leaves 13:49 19%

ATL · 1h 17m · leaves 16:08 19%

ORD · 1h 13m · leaves 15:45 30%

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.


United UA 660 PHL 06:00 → ORD American AA 3646 ORD 10:05 → GSO Connection details →	2h 35m	7h 14m	99%	86%
American AA 4338 PHL 09:32 → ATL Delta DL 2539 ATL 14:30 → GSO Connection details →	2h 37m	6h 18m	100%	85%
Frontier F9 2551 PHL 06:30 → ATL Delta DL 3060 ATL 12:36 → GSO Connection details →	3h 31m	7h 21m	98%	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