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 45-minute layover misses 17% of the time at 9 am and 43% of the time at 6 pm.

Nonstops


United	ASE	ORD	3h 05m	70%	4.1%	715	Flying now
American	ASE	ORD	3h 01m	56%	8.9%	418	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chicago on time. Total trip = scheduled departure to arrival, layover included (Chicago is 1 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	1h 25m Denver	DEN 11:15 → ORD 14:55UA 2865	5h 23m	99%	81%
United Details →	ASE 19:15 → LAX 20:43UA 5940 · flown by SkyWest	1h 52m Los Angeles	LAX 22:35 → ORD 04:51 +1UA 353	8h 36m	82%	67%
United Details →	ASE 07:30 → DEN 08:48UA 5766 · flown by SkyWest	47m Denver	DEN 09:35 → ORD 13:15UA 2329	4h 45m	83%	66%
United Details →	ASE 07:00 → IAH 10:47UA 5300 · flown by SkyWest	2h 54m Houston	IAH 13:41 → ORD 16:39UA 2458	8h 39m	96%	62%
United Details →	ASE 11:43 → IAH 15:40UA 5493 · flown by SkyWest	3h 04m Houston	IAH 18:44 → ORD 21:40UA 2197	8h 57m	94%	62%
United Details →	ASE 09:15 → DEN 10:33UA 5770 · flown by SkyWest	2h 52m Denver	DEN 13:25 → ORD 17:05UA 617	6h 50m	94%	61%
United Details →	ASE 14:22 → DEN 15:35UA 5607 · flown by SkyWest	3h 35m Denver	DEN 19:10 → ORD 22:49UA 2258	7h 27m	89%	60%
United Details →	ASE 15:25 → DEN 16:38UA 5776 · flown by SkyWest	3h 02m Denver	DEN 19:40 → ORD 23:19UA 2085	6h 54m	91%	59%
Tight connection: often missed
United Details →	ASE 17:10 → DEN 18:23UA 5778 · flown by SkyWest	47m Denver	DEN 19:10 → ORD 22:49UA 2258	4h 39m	57%	37%
American Details →	ASE 13:46 → AUS 17:09AA 6205 · flown by SkyWest	1h 17m Austin	AUS 18:26 → ORD 21:39AA 1398	6h 53m	67%	36%
United Details →	ASE 15:25 → DEN 16:38UA 5776 · flown by SkyWest	1h 22m Denver	DEN 18:00 → ORD 21:39UA 1411	5h 14m	74%	34%

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 08m · leaves 07:00 12%

DEN · 47m · leaves 07:30 17%

Afternoon and evening

AUS · 1h 17m · leaves 13:46 33%

DFW · 58m · leaves 14:21 38%

DEN · 47m · leaves 17:10 43%

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 American AA 1744 DEN 12:34 → ORD Connection details →	2h 44m	6h 59m	99%	74%
Delta DL 3924 ASE 07:36 → ATL United UA 516 ATL 15:30 → ORD Connection details →	2h 21m	8h 21m	91%	65%
American AA 4912 ASE 12:51 → DFW United UA 1517 DFW 19:30 → ORD Connection details →	3h 20m	8h 22m	98%	60%

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