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

No clear winner: airlines and hours on this route all land within a few points of 77% on time.

Nonstops


Delta	GSP	LGA	2h 01m	78%	6.5%	1,255	Flying now
American	GSP	LGA	2h 03m	76%	5.4%	927	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 →	GSP 05:44 → ATL 06:45DL 3028	3h 45m Atlanta	ATL 10:30 → LGA 12:44DL 371	7h 00m	99%	81%
Delta Details →	GSP 06:45 → ATL 07:49DL 1146	3h 41m Atlanta	ATL 11:30 → LGA 13:44DL 467	6h 59m	98%	81%
American Details →	GSP 09:04 → CLT 10:25AA 5798 · flown by Piedmont	2h 42m Charlotte	CLT 13:07 → LGA 15:05AA 2036	6h 01m	98%	79%
Delta Details →	GSP 07:10 → DTW 09:00DL 876	1h 05m Detroit	DTW 10:05 → LGA 11:50DL 2589	4h 40m	96%	78%
United Details →	GSP 06:10 → ORD 07:30UA 4728 · flown by SkyWest	2h 33m Chicago	ORD 10:03 → LGA 13:26UA 669	7h 16m	97%	78%
American Details →	GSP 06:15 → MIA 08:11AA 3806 · flown by Envoy	1h 45m Miami	MIA 09:56 → LGA 12:59AA 3256	6h 44m	96%	76%
American Details →	GSP 07:20 → ORD 08:46AA 3385 · flown by Envoy	1h 33m Chicago	ORD 10:19 → LGA 13:34AA 1015	6h 14m	100%	74%
Delta Details →	GSP 08:52 → ATL 09:57DL 1619	3h 33m Atlanta	ATL 13:30 → LGA 15:49DL 460	6h 57m	99%	73%
Tight connection: often missed
Delta Details →	GSP 18:55 → DTW 20:48DL 5090 · flown by Endeavor	1h 02m Detroit	DTW 21:50 → LGA 23:41DL 2603	4h 46m	63%	41%
American Details →	GSP 07:01 → DFW 08:44AA 1254	46m Dallas-Fort Worth	DFW 09:30 → LGA 13:59AA 3053	6h 58m	63%	35%
American Details →	GSP 19:20 → DCA 21:02AA 5208 · flown by PSA	1h 28m Washington	DCA 22:30 → LGA 23:44AA 4660 · flown by Republic	4h 24m	60%	28%

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 05m · leaves 07:10 4%

CLT · 1h 14m · leaves 09:04 5%

IAH · 1h 14m · leaves 07:00 6%

Afternoon and evening

IAD · 46m · leaves 19:40 27%

CLT · 58m · leaves 19:32 34%

DTW · 1h 02m · leaves 18:55 37%

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.


Southwest WN 4705 GSP 07:00 → BNA Delta DL 5688 BNA 09:25 → LGA Connection details →	2h 15m	5h 59m	100%	87%
Delta DL 3028 GSP 05:44 → ATL American AA 4628 ATL 09:24 → LGA Connection details →	2h 39m	6h 05m	99%	83%
United UA 4728 GSP 06:10 → ORD Delta DL 2252 ORD 09:35 → LGA Connection details →	2h 05m	6h 46m	97%	83%

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