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 DFW → ASE flights land within a few points of 7 in 10 on time whatever the hour.

Nonstops


American	DFW	ASE	2h 39m	69%	4.5%	1,187	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	DFW 13:45 → LAX 14:58DL 521	2h 14m Los Angeles	LAX 17:12 → ASE 20:23DL 3704 · flown by SkyWest	7h 38m	97%	80%
United Details →	DFW 05:45 → DEN 06:53UA 773	2h 57m Denver	DEN 09:50 → ASE 10:51UA 5782 · flown by SkyWest	6h 06m	100%	77%
United Details →	DFW 11:59 → IAH 13:17UA 539	3h 38m Houston	IAH 16:55 → ASE 18:45UA 5917 · flown by SkyWest	7h 46m	97%	72%
United Details →	DFW 05:10 → IAH 06:22UA 2260	3h 28m Houston	IAH 09:50 → ASE 11:40UA 5814 · flown by SkyWest	7h 30m	99%	70%
United Details →	DFW 08:45 → DEN 10:06UA 644	3h 34m Denver	DEN 13:40 → ASE 14:44UA 5771 · flown by SkyWest	6h 59m	100%	69%
United Details →	DFW 11:35 → DEN 12:45UA 2049	2h 22m Denver	DEN 15:07 → ASE 16:08UA 5773 · flown by SkyWest	5h 33m	95%	69%
Delta Details →	DFW 05:30 → ATL 08:42DL 401	1h 03m Atlanta	ATL 09:45 → ASE 11:23DL 4011 · flown by SkyWest	6h 53m	94%	68%
American Details →	DFW 07:00 → AUS 08:04AA 3401 · flown by Envoy	1h 18m Austin	AUS 09:22 → ASE 10:50AA 4929 · flown by SkyWest	4h 50m	95%	68%
Tight connection: often missed
United Details →	DFW 14:15 → IAH 15:37UA 3985 · flown by Mesa	1h 18m Houston	IAH 16:55 → ASE 18:45UA 5917 · flown by SkyWest	5h 30m	74%	56%
United Details →	DFW 16:50 → DEN 18:20UA 1303	50m Denver	DEN 19:10 → ASE 20:11UA 5779 · flown by SkyWest	4h 21m	54%	35%
United Details →	DFW 16:13 → ORD 18:55UA 2299	52m Chicago	ORD 19:47 → ASE 22:00UA 5254 · flown by SkyWest	6h 47m	40%	23%

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

AUS · 1h 18m · leaves 07:00 5%

ATL · 1h 03m · leaves 05:30 6%

DEN · 1h 12m · leaves 08:45 6%

Afternoon and evening

IAH · 1h 18m · leaves 14:15 26%

DEN · 50m · leaves 16:50 46%

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.


Frontier F9 2147 DFW 05:18 → DEN United UA 5782 DEN 09:50 → ASE Connection details →	3h 19m	6h 33m	99%	77%
American AA 1523 DFW 07:04 → DEN United UA 5769 DEN 11:18 → ASE Connection details →	3h 10m	6h 22m	97%	70%
American AA 2512 DFW 11:58 → IAH United UA 5917 IAH 16:55 → ASE Connection details →	3h 46m	7h 47m	94%	68%

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