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

Connect in the morning. The same 70-minute layover misses 8% of the time at 9 am and 30% of the time at 5 pm.

Nonstops (seasonal or thin)


Delta	ASE	ATL	3h 26m	75%	3.6%	450	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Atlanta on time. Total trip = scheduled departure to arrival, layover included (Atlanta is 2 h ahead of Aspen). Layovers up to 4 hours. Pick a connection for the details.


United Details →	ASE 08:32 → DEN 09:50UA 4687 · flown by SkyWest	3h 36m Denver	DEN 13:26 → ATL 18:30UA 1671	7h 58m	99%	77%
Delta Details →	ASE 12:03 → LAX 13:27DL 4133 · flown by SkyWest	3h 13m Los Angeles	LAX 16:40 → ATL 00:10 +1DL 471	10h 07m	95%	77%
United Details →	ASE 07:30 → DEN 08:48UA 5766 · flown by SkyWest	1h 12m Denver	DEN 10:00 → ATL 15:10UA 2424	5h 40m	92%	75%
United Details →	ASE 07:00 → IAH 10:47UA 5300 · flown by SkyWest	1h 08m Houston	IAH 11:55 → ATL 15:16UA 4079 · flown by Mesa	6h 16m	88%	66%
United Details →	ASE 13:07 → DEN 14:20UA 5774 · flown by SkyWest	3h 28m Denver	DEN 17:48 → ATL 22:57UA 1305	7h 50m	94%	64%
United Details →	ASE 12:39 → ORD 16:45UA 5956 · flown by SkyWest	3h 24m Chicago	ORD 20:09 → ATL 23:30UA 2770	8h 51m	95%	60%
American Details →	ASE 07:25 → ORD 11:31AA 6225 · flown by SkyWest	2h 04m Chicago	ORD 13:35 → ATL 16:47AA 4759 · flown by Republic	7h 22m	88%	55%
American Details →	ASE 12:51 → DFW 16:10AA 4912 · flown by SkyWest	3h 16m Dallas-Fort Worth	DFW 19:26 → ATL 22:36AA 3212	7h 44m	100%	49%
Tight connection: often missed
Delta Details →	ASE 12:03 → LAX 13:27DL 4133 · flown by SkyWest	48m Los Angeles	LAX 14:15 → ATL 21:53DL 715	7h 47m	65%	51%
United Details →	ASE 15:25 → DEN 16:38UA 5776 · flown by SkyWest	1h 10m Denver	DEN 17:48 → ATL 22:57UA 1305	5h 32m	70%	47%
United Details →	ASE 09:00 → ORD 13:04UA 4669 · flown by SkyWest	51m Chicago	ORD 13:55 → ATL 17:10UA 356	6h 10m	57%	41%

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 12m · leaves 07:30 8%

IAH · 1h 08m · leaves 07:00 12%

DFW · 1h 13m · leaves 07:36 24%

Afternoon and evening

DEN · 1h 10m · leaves 15:25 30%

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 4687 ASE 08:32 → DEN Delta DL 824 DEN 13:15 → ATL Connection details →	3h 25m	7h 46m	99%	77%
United UA 5772 ASE 11:32 → DEN Delta DL 840 DEN 16:43 → ATL Connection details →	3h 58m	8h 22m	96%	75%
United UA 5770 ASE 09:15 → DEN Delta DL 706 DEN 14:15 → ATL Connection details →	3h 42m	8h 05m	95%	75%

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