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 80-minute layover misses 1% of the time at 8 am and 13% of the time at 6 pm.

Nonstops


American	GSO	ORD	2h 17m	81%	3.3%	934	Flying now
United	GSO	ORD	2h 20m	77%	3.5%	859	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chicago on time. Total trip = scheduled departure to arrival, layover included (Chicago is 1 h behind Greensboro). Layovers up to 4 hours. Pick a connection for the details.


American Details →	GSO 07:18 → CLT 08:20AA 3965 · flown by Envoy	2h 41m Charlotte	CLT 11:01 → ORD 12:19AA 2908	6h 01m	100%	89%
United Details →	GSO 06:15 → IAD 07:33UA 4251 · flown by CommuteAir	2h 58m Dulles	IAD 10:31 → ORD 11:53UA 1252	6h 38m	96%	87%
Delta Details →	GSO 06:00 → DTW 07:45DL 5088 · flown by Endeavor	2h 30m Detroit	DTW 10:15 → ORD 10:50DL 3673 · flown by SkyWest	5h 50m	96%	85%
American Details →	GSO 05:16 → CLT 06:09AA 1078	1h 37m Charlotte	CLT 07:46 → ORD 09:02AA 2843	4h 46m	95%	80%
American Details →	GSO 06:07 → PHL 07:39AA 5958 · flown by Piedmont	2h 56m Philadelphia	PHL 10:35 → ORD 12:09AA 1041	7h 02m	97%	78%
United Details →	GSO 06:00 → EWR 07:42UA 4580 · flown by GoJet	1h 38m Newark	EWR 09:20 → ORD 11:04UA 2290	6h 04m	97%	77%
Delta Details →	GSO 05:25 → ATL 06:44DL 3018	2h 18m Atlanta	ATL 09:02 → ORD 10:13DL 1147	5h 48m	99%	75%
Delta Details →	GSO 10:14 → ATL 11:31DL 3173	1h 31m Atlanta	ATL 13:02 → ORD 14:16DL 1477	5h 02m	98%	71%
Tight connection: often missed
American Details →	GSO 12:42 → CLT 13:49AA 5796 · flown by Piedmont	46m Charlotte	CLT 14:35 → ORD 15:56AA 2080	4h 14m	74%	53%
Delta Details →	GSO 14:20 → LGA 16:04DL 5862 · flown by Republic	56m New York	LGA 17:00 → ORD 19:10DL 2503	5h 50m	73%	38%
American Details →	GSO 18:18 → LGA 20:04AA 4421 · flown by Republic	1h 19m New York	LGA 21:23 → ORD 23:29AA 2057	6h 06m	70%	30%

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

PHL · 1h 19m · leaves 06:07 6%

ATL · 1h 06m · leaves 06:35 6%

LGA · 1h 04m · leaves 06:00 12%

Afternoon and evening

ATL · 1h 18m · leaves 19:59 15%

CLT · 1h 06m · leaves 16:11 27%

LGA · 1h 19m · leaves 18:18 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.


Delta DL 5088 GSO 06:00 → DTW American AA 4103 DTW 10:33 → ORD Connection details →	2h 48m	6h 08m	96%	89%
American AA 3965 GSO 07:18 → CLT United UA 4680 CLT 10:35 → ORD Connection details →	2h 15m	5h 41m	99%	83%
Delta DL 3004 GSO 06:35 → ATL United UA 1239 ATL 11:29 → ORD Connection details →	3h 33m	7h 17m	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