Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · connections flying that day

Sat, Oct 10: DL 1074 at 06:50 is the safest bet, 7% chance of being 15+ min late; the others run 19%.

Nonstops that day

All 2 nonstops →


DL 1074 Delta Flight history →	COS 06:50	ATL 11:54	7%	2%	0.6%	93%
DL 2427 Delta Flight history →	COS 13:40	ATL 18:44	19%	5%	1.7%	83%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Atlanta on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Atlanta is 2 h ahead of Colorado Springs). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	COS 18:16 → SLC 20:09DL 4449 · flown by SkyWest	3h 26m Salt Lake City	SLC 23:35 → ATL 05:14 +1DL 912	8h 58m	100%	86%
United Details →	COS 06:00 → DEN 07:05UA 5291 · flown by SkyWest	3h 12m Denver	DEN 10:17 → ATL 15:23UA 2806	7h 23m	99%	81%
United Details →	COS 11:31 → DEN 12:45UA 4675 · flown by SkyWest	3h 09m Denver	DEN 15:54 → ATL 20:59UA 248	7h 28m	99%	75%
United Details →	COS 09:20 → DEN 10:33UA 5634 · flown by SkyWest	3h 07m Denver	DEN 13:40 → ATL 18:44UA 1671	7h 24m	98%	73%
United Details →	COS 12:06 → IAH 15:35UA 4030 · flown by Mesa	2h 35m Houston	IAH 18:10 → ATL 21:23UA 2240	7h 17m	93%	68%
American Details →	COS 08:01 → DFW 10:56AA 782	2h 29m Dallas-Fort Worth	DFW 13:25 → ATL 16:43AA 2398	6h 42m	95%	64%
United Details →	COS 12:11 → ORD 15:56UA 1398	2h 24m Chicago	ORD 18:20 → ATL 21:40UA 1398	7h 29m	96%	62%
American Details →	COS 10:17 → DFW 13:08AA 1552	2h 58m Dallas-Fort Worth	DFW 16:06 → ATL 19:26AA 2403	7h 09m	95%	55%

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Sat, Oct 10 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON