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 one-hour layover misses 8% of the time at 9 am and 37% of the time at 8 pm.

Nonstops (seasonal or thin)


Delta	ATL	FSD	2h 43m	79%	0.8%	365	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ATL 11:10 → DEN 12:28UA 1327	1h 12m Denver	DEN 13:40 → FSD 16:23UA 5378 · flown by SkyWest	6h 13m	95%	81%
Delta Details →	ATL 08:26 → MSP 10:02DL 2960	1h 36m Minneapolis	MSP 11:38 → FSD 12:49DL 3534 · flown by SkyWest	5h 19m	99%	80%
United Details →	ATL 07:30 → DEN 08:51UA 340	1h 04m Denver	DEN 09:55 → FSD 12:35UA 4759 · flown by SkyWest	6h 05m	92%	80%
Delta Details →	ATL 16:31 → MSP 18:09DL 2654	3h 56m Minneapolis	MSP 22:05 → FSD 23:06DL 1694	7h 38m	99%	77%
United Details →	ATL 16:22 → DEN 18:08UA 235	3h 02m Denver	DEN 21:10 → FSD 23:53UA 5700 · flown by SkyWest	8h 31m	96%	75%
Delta Details →	ATL 09:55 → MSP 11:30DL 2090	3h 06m Minneapolis	MSP 14:36 → FSD 15:44DL 3538 · flown by SkyWest	6h 49m	99%	73%
Frontier Details →	ATL 12:33 → DEN 14:00F9 3293	2h 42m Denver	DEN 16:42 → FSD 19:19F9 2108	7h 47m	97%	73%
American Details →	ATL 06:01 → DFW 07:33AA 2770	2h 17m Dallas-Fort Worth	DFW 09:50 → FSD 12:10AA 6194 · flown by SkyWest	7h 09m	98%	68%
Tight connection: often missed
American Details →	ATL 07:25 → ORD 08:45AA 616	55m Chicago	ORD 09:40 → FSD 11:34AA 4989 · flown by SkyWest	5h 15m	71%	50%
American Details →	ATL 12:00 → ORD 13:20AA 1363	58m Chicago	ORD 14:18 → FSD 16:12AA 4990 · flown by SkyWest	5h 12m	74%	47%
American Details →	ATL 19:43 → ORD 21:11AA 1372	1h 19m Chicago	ORD 22:30 → FSD 00:18 +1AA 4942 · flown by SkyWest	5h 35m	59%	32%

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 04m · leaves 07:30 8%

ORD · 55m · leaves 07:25 29%

Afternoon and evening

MSP · 1h 14m · leaves 15:38 16%

ORD · 1h 19m · leaves 19:43 41%

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.


Southwest WN 2114 ATL 06:25 → DEN United UA 4759 DEN 09:55 → FSD Connection details →	2h 25m	7h 10m	100%	88%
Southwest WN 202 ATL 09:30 → DEN United UA 5378 DEN 13:40 → FSD Connection details →	3h 00m	7h 53m	100%	86%
American AA 616 ATL 07:25 → ORD United UA 4443 ORD 12:40 → FSD Connection details →	3h 55m	8h 07m	95%	80%

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