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 1 time in 4 at 8 pm.

Nonstops (seasonal or thin)


United	IAD	GSO	1h 23m	82%	1.8%	757	Flying now

Best connections, any airlines

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 →	IAD 06:33 → CLT 08:00AA 1216	3h 12m Charlotte	CLT 11:12 → GSO 12:17AA 5796 · flown by Piedmont	5h 44m	97%	85%
United + Americantwo ticketsDetails →	IAD 06:10 → ORD 07:27UA 2070	3h 03m Chicago	ORD 10:30 → GSO 13:34AA 3744 · flown by Envoy	7h 24m	97%	81%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	2h 29m Atlanta	ATL 10:15 → GSO 11:34DL 3052	5h 34m	97%	80%
United + Americantwo ticketsDetails →	IAD 08:15 → CLT 09:45UA 4063 · flown by Mesa	3h 20m Charlotte	CLT 13:05 → GSO 14:10AA 5789 · flown by Piedmont	5h 55m	100%	79%
United + Deltatwo ticketsDetails →	IAD 08:15 → ATL 10:14UA 2739	2h 22m Atlanta	ATL 12:36 → GSO 13:49DL 3060	5h 36m	96%	79%
American Details →	IAD 05:03 → CLT 06:35AA 5054 · flown by PSA	50m Charlotte	CLT 07:25 → GSO 08:30AA 5793 · flown by Piedmont	3h 27m	91%	79%
American Details →	IAD 09:20 → CLT 10:57AA 5219 · flown by PSA	3h 44m Charlotte	CLT 14:41 → GSO 15:46AA 5797 · flown by Piedmont	6h 26m	97%	79%
Delta Details →	IAD 10:21 → ATL 12:05DL 1324	2h 25m Atlanta	ATL 14:30 → GSO 15:50DL 2539	5h 29m	96%	78%
Tight connection: often missed
Delta Details →	IAD 15:02 → ATL 16:54DL 2135	58m Atlanta	ATL 17:52 → GSO 19:11DL 1604	4h 09m	72%	52%
United Details →	IAD 15:39 → ORD 17:02UA 1393	1h 13m Chicago	ORD 18:15 → GSO 21:23UA 4553 · flown by GoJet	5h 44m	72%	40%
American Details →	IAD 20:22 → CLT 21:55AA 1450	1h 06m Charlotte	CLT 23:01 → GSO 23:57AA 2802	3h 35m	54%	33%

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

DFW · 1h 17m · leaves 06:14 10%

DTW · 1h 14m · leaves 06:00 12%

Afternoon and evening

ATL · 58m · leaves 15:02 28%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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