Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: American’s COS → DFW flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


American	COS	DFW	1h 57m	79%	2.5%	1,933	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas-Fort Worth on time. Total trip = scheduled departure to arrival, layover included (Dallas-Fort Worth is 1 h ahead of Colorado Springs). Layovers up to 4 hours. Pick a connection for the details.


United Details →	COS 05:30 → DEN 06:35UA 4697 · flown by SkyWest	3h 05m Denver	DEN 09:40 → DFW 12:48UA 355	6h 18m	100%	94%
United Details →	COS 07:30 → IAH 11:03UA 4029 · flown by Mesa	3h 43m Houston	IAH 14:46 → DFW 16:16UA 1388	7h 46m	100%	75%
United Details →	COS 08:45 → DEN 10:02UA 4725 · flown by SkyWest	3h 43m Denver	DEN 13:45 → DFW 16:51UA 578	7h 06m	99%	74%
United Details →	COS 12:06 → IAH 15:35UA 4030 · flown by Mesa	2h 30m Houston	IAH 18:05 → DFW 19:31UA 1535	6h 25m	91%	64%
United Details →	COS 17:07 → DEN 18:20UA 4719 · flown by SkyWest	2h 33m Denver	DEN 20:53 → DFW 23:59UA 2239	5h 52m	93%	62%
United Details →	COS 11:31 → DEN 12:45UA 4675 · flown by SkyWest	2h 57m Denver	DEN 15:42 → DFW 18:48UA 414	6h 17m	98%	60%
United Details →	COS 15:02 → DEN 16:15UA 4657 · flown by SkyWest	2h 38m Denver	DEN 18:53 → DFW 21:59UA 1565	5h 57m	86%	57%
Delta Details →	COS 13:40 → ATL 18:45DL 2427	2h 05m Atlanta	ATL 20:50 → DFW 22:11DL 3161	7h 32m	94%	49%

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

IAH · 1h 02m · leaves 07:30 10%

DEN · 48m · leaves 07:45 12%

Afternoon and evening

DEN · 1h 08m · leaves 18:32 24%

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.


Southwest WN 1220 COS 05:45 → DEN United UA 355 DEN 09:40 → DFW Connection details →	2h 55m	6h 03m	96%	90%
Southwest WN 4256 COS 06:45 → PHX American AA 3284 PHX 10:31 → DFW Connection details →	2h 56m	7h 25m	98%	85%
Southwest WN 3313 COS 06:10 → LAS American AA 1584 LAS 10:11 → DFW Connection details →	3h 06m	7h 58m	100%	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