Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 4 in 5 on time.

Nonstops


United	FSD	DEN	1h 53m	81%	1.4%	1,670	Flying now
Frontier	FSD	DEN	1h 51m	72%	0.0%	150	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	FSD 07:35 → ORD 09:31UA 1857	1h 23m Chicago	ORD 10:54 → DEN 12:45UA 581	6h 10m	93%	87%
Delta Details →	FSD 05:20 → ATL 08:54DL 1237	2h 51m Atlanta	ATL 11:45 → DEN 12:59DL 706	8h 39m	97%	83%
Delta Details →	FSD 10:56 → MSP 12:10DL 3561 · flown by SkyWest	2h 17m Minneapolis	MSP 14:27 → DEN 15:38DL 1025	5h 42m	100%	80%
Delta Details →	FSD 08:23 → MSP 09:29DL 1006	1h 31m Minneapolis	MSP 11:00 → DEN 12:10DL 2927	4h 47m	93%	76%
Delta Details →	FSD 05:12 → MSP 06:20DL 3840 · flown by SkyWest	2h 35m Minneapolis	MSP 08:55 → DEN 10:05DL 2849	5h 53m	94%	76%
American Details →	FSD 07:06 → ORD 09:05AA 4952 · flown by SkyWest	55m Chicago	ORD 10:00 → DEN 11:44AA 1744	5h 38m	85%	68%
United Details →	FSD 11:16 → ORD 13:14UA 4439 · flown by GoJet	1h 19m Chicago	ORD 14:33 → DEN 16:31UA 2803	6h 15m	89%	66%
American Details →	FSD 06:00 → DFW 08:20AA 2880	2h 21m Dallas-Fort Worth	DFW 10:41 → DEN 11:46AA 2359	6h 46m	95%	66%
Tight connection: often missed
United Details →	FSD 18:28 → ORD 20:26UA 4467 · flown by GoJet	1h 24m Chicago	ORD 21:50 → DEN 23:48UA 377	6h 20m	72%	46%
American Details →	FSD 12:04 → ORD 14:00AA 4989 · flown by SkyWest	1h 15m Chicago	ORD 15:15 → DEN 17:00AA 1734	5h 56m	62%	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.

Morning

ATL · 56m · leaves 05:20 14%

ORD · 55m · leaves 07:06 15%

Afternoon and evening

DFW · 1h 13m · leaves 12:40 14%

MSP · 1h 05m · leaves 16:26 18%

ORD · 1h 12m · leaves 15:07 19%

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.


Delta DL 1006 FSD 08:23 → MSP United UA 2232 MSP 11:34 → DEN Connection details →	2h 05m	5h 22m	92%	84%
Delta DL 1237 FSD 05:20 → ATL United UA 1327 ATL 11:10 → DEN Connection details →	2h 16m	8h 08m	94%	84%
American AA 4952 FSD 07:06 → ORD United UA 1150 ORD 12:56 → DEN Connection details →	3h 51m	8h 40m	97%	81%

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