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 4 pm.

Nonstops


Delta	GSP	ATL	1h 05m	90%	1.6%	2,827	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Atlanta 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 25m Detroit	DTW 10:25 → ATL 12:25DL 2856	5h 13m	98%	82%
United Details →	GSP 06:10 → ORD 07:30UA 4728 · flown by SkyWest	1h 37m Chicago	ORD 09:07 → ATL 12:22UA 530	6h 12m	97%	78%
Delta Details →	GSP 11:12 → DTW 13:00DL 5195 · flown by Endeavor	1h 57m Detroit	DTW 14:57 → ATL 17:05DL 1983	5h 53m	96%	75%
Delta Details →	GSP 06:00 → LGA 07:59DL 5171 · flown by Endeavor	3h 00m New York	LGA 10:59 → ATL 13:20DL 993	7h 20m	96%	75%
United Details →	GSP 11:18 → EWR 13:20UA 3684 · flown by Republic	2h 37m Newark	EWR 15:57 → ATL 18:41UA 1848	7h 23m	99%	73%
United Details →	GSP 10:45 → ORD 11:59UA 5361 · flown by SkyWest	1h 56m Chicago	ORD 13:55 → ATL 17:10UA 356	6h 25m	98%	71%
United Details →	GSP 06:30 → EWR 08:35UA 3700 · flown by Republic	2h 25m Newark	EWR 11:00 → ATL 13:23UA 642	6h 53m	99%	70%
American Details →	GSP 07:00 → CLT 08:16AA 5654 · flown by PSA	54m Charlotte	CLT 09:10 → ATL 10:41AA 5039 · flown by PSA	3h 41m	80%	69%
Tight connection: often missed
American Details →	GSP 07:01 → DFW 08:44AA 1254	50m Dallas-Fort Worth	DFW 09:34 → ATL 12:46AA 1358	5h 45m	68%	49%
American Details →	GSP 11:33 → ORD 12:45AA 3556 · flown by Envoy	50m Chicago	ORD 13:35 → ATL 16:47AA 4759 · flown by Republic	5h 14m	73%	48%
American Details →	GSP 14:29 → PHL 16:29AA 6132 · flown by Piedmont	1h 06m Philadelphia	PHL 17:35 → ATL 19:55AA 3041	5h 26m	69%	43%

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

LGA · 1h 01m · leaves 06:00 9%

CLT · 54m · leaves 07:00 20%

DFW · 50m · leaves 07:01 32%

Afternoon and evening

PHL · 1h 06m · leaves 14:29 31%

IAD · 47m · leaves 14:55 33%

CLT · 1h 13m · leaves 18:00 40%

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 3069 BNA 09:48 → ATL Connection details →	2h 38m	5h 01m	100%	90%
United UA 4728 GSP 06:10 → ORD Delta DL 1178 ORD 09:45 → ATL Connection details →	2h 15m	6h 41m	97%	83%
Southwest WN 1899 GSP 08:25 → BWI Delta DL 801 BWI 11:52 → ATL Connection details →	2h 02m	5h 16m	95%	82%

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