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 15% of the time at 11 am and 2 times in 5 at 7 pm.

Nonstops


United	DEN	COS	56m	78%	1.4%	3,879	Flying now
Southwest	DEN	COS	45m	75%	0.4%	1,129	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Colorado Springs on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	DEN 05:45 → LAS 06:40WN 3106	2h 10m Las Vegas	LAS 08:50 → COS 11:45WN 4326	6h 00m	100%	90%
Delta Details →	DEN 15:55 → SLC 17:34DL 1623	3h 25m Salt Lake City	SLC 20:59 → COS 22:42DL 3788 · flown by SkyWest	6h 47m	97%	88%
Delta Details →	DEN 12:45 → SLC 14:18DL 1553	1h 37m Salt Lake City	SLC 15:55 → COS 17:40DL 4449 · flown by SkyWest	4h 55m	95%	86%
United Details →	DEN 05:00 → IAH 08:32UA 320	1h 24m Houston	IAH 09:56 → COS 11:25UA 6122 · flown by Mesa	6h 25m	99%	85%
American Details →	DEN 05:00 → DFW 08:05AA 2612	3h 23m Dallas-Fort Worth	DFW 11:28 → COS 12:37AA 6390 · flown by SkyWest	7h 37m	99%	84%
United Details →	DEN 13:30 → IAH 17:04UA 1829	2h 48m Houston	IAH 19:52 → COS 21:29UA 6126 · flown by Mesa	7h 59m	97%	81%
Southwest Details →	DEN 06:15 → DAL 09:10WN 1517	1h 55m Dallas	DAL 11:05 → COS 12:00WN 3257	5h 45m	100%	69%
Delta Details →	DEN 05:45 → ATL 10:42DL 341	48m Atlanta	ATL 11:30 → COS 12:35DL 2427	6h 50m	85%	69%
Tight connection: often missed
Southwest Details →	DEN 17:30 → LAS 18:30WN 1564	1h 20m Las Vegas	LAS 19:50 → COS 22:45WN 4487	5h 12m	64%	38%
United Details →	DEN 15:01 → ORD 18:46UA 1023	59m Chicago	ORD 19:45 → COS 21:55UA 4638 · flown by SkyWest	6h 54m	60%	37%
Southwest Details →	DEN 20:35 → LAS 21:30WN 1566	55m Las Vegas	LAS 22:25 → COS 01:18 +1WN 2214	4h 42m	38%	24%

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

ATL · 48m · leaves 05:45 15%

DFW · 50m · leaves 05:00 15%

Afternoon and evening

PHX · 1h 20m · leaves 14:20 9%

ORD · 59m · leaves 15:01 40%

LAS · 55m · leaves 20:35 62%

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.


United UA 1963 DEN 11:40 → SLC Delta DL 4449 SLC 15:55 → COS Connection details →	2h 42m	6h 00m	98%	90%
United UA 5261 DEN 16:29 → SLC Delta DL 3788 SLC 20:59 → COS Connection details →	2h 49m	6h 13m	92%	84%
Frontier F9 2550 DEN 05:05 → DFW American AA 6390 DFW 11:28 → COS Connection details →	3h 19m	7h 32m	97%	84%

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