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 90-minute layover misses 5% of the time at 8 am and 1 time in 5 at 4 pm.

Nonstops (seasonal or thin)


United	DEN	COU	2h 04m	83%	1.6%	310	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Columbia on time. Total trip = scheduled departure to arrival, layover included (Columbia is 1 h ahead of Denver). Layovers up to 4 hours. Pick a connection for the details.


United + Americantwo ticketsDetails →	DEN 09:40 → DFW 12:48UA 355	2h 19m Dallas-Fort Worth	DFW 15:07 → COU 16:49AA 3481 · flown by Envoy	6h 09m	99%	82%
American Details →	DEN 05:00 → DFW 08:05AA 2612	1h 25m Dallas-Fort Worth	DFW 09:30 → COU 11:14AA 3478 · flown by Envoy	5h 14m	95%	81%
American Details →	DEN 09:08 → ORD 12:56AA 1747	3h 33m Chicago	ORD 16:29 → COU 18:01AA 3479 · flown by Envoy	7h 53m	100%	79%
American Details →	DEN 13:56 → CLT 19:22AA 1758	1h 42m Charlotte	CLT 21:04 → COU 22:19AA 3990 · flown by Envoy	7h 22m	89%	73%
United Details →	DEN 15:01 → ORD 18:46UA 1023	3h 14m Chicago	ORD 22:00 → COU 23:33UA 5336 · flown by SkyWest	7h 32m	95%	69%
United Details →	DEN 06:00 → ORD 09:42UA 1377	3h 33m Chicago	ORD 13:15 → COU 14:50UA 5521 · flown by SkyWest	7h 50m	99%	68%
United + Americantwo ticketsDetails →	DEN 13:45 → DFW 16:51UA 578	3h 42m Dallas-Fort Worth	DFW 20:33 → COU 22:20AA 4282 · flown by Envoy	7h 35m	96%	67%
Frontier + Americantwo ticketsDetails →	DEN 10:09 → DFW 13:19F9 3366	3h 54m Dallas-Fort Worth	DFW 17:13 → COU 18:56AA 3890 · flown by Envoy	7h 47m	98%	63%
Tight connection: often missed
American Details →	DEN 14:22 → ORD 18:16AA 1760	1h 27m Chicago	ORD 19:43 → COU 21:15AA 3745 · flown by Envoy	5h 53m	70%	45%
American Details →	DEN 16:23 → DFW 19:34AA 1832	59m Dallas-Fort Worth	DFW 20:33 → COU 22:20AA 4282 · flown by Envoy	4h 57m	60%	40%

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.

Afternoon and evening

DFW · 59m · leaves 16:23 40%

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