Sun, Oct 4 has passed, so this is the 12-month record.

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

The nonstop is quickest: Southwest HOU → COS (2h 20m), on time 7 times in 10. Southwest via Denver (4h 25m) is more reliable, 98%, but takes 2h 05m longer.

Nonstops (seasonal or thin)


Southwest	HOU	COS	2h 20m	69%	0.0%	193	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 (Colorado Springs is 1 h behind Houston). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	HOU 05:30 → DEN 06:55WN 1970	1h 05m Denver	DEN 08:00 → COS 08:55WN 3419	4h 25m	100%	98%
Southwest Details →	HOU 05:30 → LAS 06:30WN 2251	2h 20m Las Vegas	LAS 08:50 → COS 11:45WN 4326	7h 15m	100%	90%
American Details →	HOU 06:03 → DFW 07:30AA 3395 · flown by Envoy	3h 58m Dallas-Fort Worth	DFW 11:28 → COS 12:37AA 6390 · flown by SkyWest	7h 34m	98%	82%
Delta Details →	HOU 06:00 → ATL 09:05DL 2557	2h 25m Atlanta	ATL 11:30 → COS 12:35DL 2427	7h 35m	98%	79%
Southwest Details →	HOU 07:00 → DAL 08:10WN 4	2h 55m Dallas	DAL 11:05 → COS 12:00WN 3257	6h 00m	100%	70%
Southwest Details →	HOU 06:25 → MDW 08:50WN 2039	3h 40m Chicago	MDW 12:30 → COS 14:00WN 1230	8h 35m	100%	69%
Southwest Details →	HOU 06:20 → PHX 06:55WN 2062	50m Phoenix	PHX 07:45 → COS 10:30WN 4142	5h 10m	88%	67%
American Details →	HOU 10:18 → DFW 11:43AA 5071 · flown by PSA	3h 54m Dallas-Fort Worth	DFW 15:37 → COS 16:43AA 4956 · flown by SkyWest	7h 25m	95%	65%
Tight connection: often missed
American Details →	HOU 18:49 → DFW 20:15AA 6385 · flown by SkyWest	1h 10m Dallas-Fort Worth	DFW 21:25 → COS 22:23AA 790	4h 34m	63%	30%
Southwest Details →	HOU 17:55 → DEN 19:40WN 1974	1h 15m Denver	DEN 20:55 → COS 21:45WN 3811	4h 52m	39%	11%

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

DEN · 1h 05m · leaves 05:30 0%

PHX · 50m · leaves 06:20 12%

Afternoon and evening

DFW · 1h 10m · leaves 18:49 37%

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 2622 HOU 05:50 → ATL Delta DL 2427 ATL 11:30 → COS Connection details →	2h 40m	7h 45m	100%	82%
Southwest WN 1974 HOU 17:55 → DEN United UA 4745 DEN 23:09 → COS Connection details →	3h 29m	7h 04m	94%	81%
Southwest WN 1970 HOU 05:30 → DEN United UA 5306 DEN 09:45 → COS Connection details →	2h 50m	6h 16m	100%	81%

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