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 9 am and 31% of the time at 10 pm.

Nonstops


American	ORD	GSO	1h 59m	81%	3.0%	935	Flying now
United	ORD	GSO	2h 04m	73%	3.0%	859	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 (Greensboro is 1 h ahead of Chicago). Layovers up to 4 hours. Pick a connection for the details.


American Details →	ORD 05:07 → CLT 08:10AA 2842	3h 02m Charlotte	CLT 11:12 → GSO 12:17AA 5796 · flown by Piedmont	6h 10m	98%	86%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	1h 42m Atlanta	ATL 10:15 → GSO 11:34DL 3052	5h 04m	96%	81%
Delta Details →	ORD 06:35 → ATL 09:41DL 1247	2h 55m Atlanta	ATL 12:36 → GSO 13:49DL 3060	6h 16m	98%	81%
Delta Details →	ORD 09:45 → ATL 12:51DL 1178	1h 39m Atlanta	ATL 14:30 → GSO 15:50DL 2539	5h 05m	96%	80%
American Details →	ORD 05:00 → DFW 07:30AA 760	2h 22m Dallas-Fort Worth	DFW 09:52 → GSO 13:37AA 3554 · flown by Envoy	7h 37m	98%	79%
American Details →	ORD 08:00 → CLT 11:08AA 3222	3h 33m Charlotte	CLT 14:41 → GSO 15:46AA 5797 · flown by Piedmont	6h 46m	97%	77%
United Details →	ORD 06:30 → IAD 09:24UA 1689	3h 34m Dulles	IAD 12:58 → GSO 14:20UA 4349 · flown by CommuteAir	6h 50m	100%	77%
American Details →	ORD 06:30 → CLT 09:37AA 1784	3h 28m Charlotte	CLT 13:05 → GSO 14:10AA 5789 · flown by Piedmont	6h 40m	98%	76%
Tight connection: often missed
United Details →	ORD 18:12 → IAD 21:22UA 2202	53m Dulles	IAD 22:15 → GSO 23:36UA 4849 · flown by CommuteAir	4h 24m	48%	36%
American Details →	ORD 16:30 → LGA 19:53AA 2086	1h 07m New York	LGA 21:00 → GSO 22:55AA 4577 · flown by Republic	5h 25m	55%	32%
American Details →	ORD 15:50 → DFW 18:28AA 2754	49m Dallas-Fort Worth	DFW 19:17 → GSO 22:58AA 1316	6h 06m	52%	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

IAD · 1h 06m · leaves 08:40 6%

DFW · 1h 16m · leaves 06:04 9%

LGA · 1h 18m · leaves 07:05 15%

Afternoon and evening

LGA · 1h 07m · leaves 16:30 45%

DFW · 49m · leaves 15:50 48%

IAD · 53m · leaves 18:12 52%

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 1363 ORD 08:12 → ATL Delta DL 2539 ATL 14:30 → GSO Connection details →	3h 16m	6h 38m	97%	82%
United UA 425 ORD 07:12 → ATL Delta DL 3060 ATL 12:36 → GSO Connection details →	2h 09m	5h 39m	97%	81%
United UA 382 ORD 08:00 → DCA American AA 4514 DCA 14:05 → GSO Connection details →	3h 04m	6h 29m	100%	77%

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