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 DAL → COS (1h 55m), on time 3 times in 4. Southwest via Denver (3h 55m) is more reliable, 92%, but takes 2h 00m longer.

Nonstops (seasonal or thin)


Southwest	DAL	COS	1h 55m	75%	0.9%	799	Flying now

Best connections, any airlines

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 Dallas). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	DAL 06:00 → DEN 07:00WN 1296	1h 00m Denver	DEN 08:00 → COS 08:55WN 3419	3h 55m	95%	92%
Southwest Details →	DAL 06:05 → LAS 06:50WN 1318	2h 00m Las Vegas	LAS 08:50 → COS 11:45WN 4326	6h 40m	100%	90%
Southwest + Unitedtwo ticketsDetails →	DAL 17:55 → DEN 19:25WN 1303	3h 44m Denver	DEN 23:09 → COS 23:59UA 4745 · flown by SkyWest	7h 04m	98%	82%
Southwest + Deltatwo ticketsDetails →	DAL 06:00 → ATL 09:05WN 1261	2h 25m Atlanta	ATL 11:30 → COS 12:35DL 2427	7h 35m	98%	80%
Southwest + Unitedtwo ticketsDetails →	DAL 10:45 → DEN 11:45WN 4394	3h 50m Denver	DEN 15:35 → COS 16:32UA 5546 · flown by SkyWest	6h 47m	98%	77%
Southwest Details →	DAL 06:00 → PHX 06:28WN 1379	1h 17m Phoenix	PHX 07:45 → COS 10:30WN 4142	5h 30m	100%	76%
Southwest Details →	DAL 08:30 → MDW 10:45WN 1356	1h 45m Chicago	MDW 12:30 → COS 14:00WN 1230	6h 30m	100%	67%
Southwest + Unitedtwo ticketsDetails →	DAL 08:40 → DEN 09:45WN 239	3h 45m Denver	DEN 13:30 → COS 14:27UA 4775 · flown by SkyWest	6h 47m	97%	67%
Tight connection: often missed
Southwest Details →	DAL 15:20 → PHX 15:45WN 4129	55m Phoenix	PHX 16:40 → COS 19:20WN 3064	5h 00m	43%	20%
Southwest Details →	DAL 17:55 → DEN 19:25WN 1303	1h 30m Denver	DEN 20:55 → COS 21:45WN 3811	4h 52m	69%	19%

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 00m · leaves 06:00 5%

Afternoon and evening

PHX · 55m · leaves 15:20 57%

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