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, any airlines

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.


Southwest + Unitedtwo ticketsDetails →	ATL 06:25 → DEN 07:30WN 2114	2h 25m Denver	DEN 09:55 → FSD 12:35UA 4759 · flown by SkyWest	7h 10m	100%	88%
Southwest + Unitedtwo ticketsDetails →	ATL 09:30 → DEN 10:40WN 202	3h 00m Denver	DEN 13:40 → FSD 16:23UA 5378 · flown by SkyWest	7h 53m	100%	86%
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%
American + Unitedtwo ticketsDetails →	ATL 07:25 → ORD 08:45AA 616	3h 55m Chicago	ORD 12:40 → FSD 14:32UA 4443 · flown by GoJet	8h 07m	95%	80%
Delta Details →	ATL 16:31 → MSP 18:09DL 2654	3h 56m Minneapolis	MSP 22:05 → FSD 23:06DL 1694	7h 38m	99%	77%
Delta + Unitedtwo ticketsDetails →	ATL 16:39 → DEN 17:56DL 519	3h 14m Denver	DEN 21:10 → FSD 23:53UA 5700 · flown by SkyWest	8h 14m	97%	76%
Delta + Frontiertwo ticketsDetails →	ATL 11:45 → DEN 12:59DL 706	3h 43m Denver	DEN 16:42 → FSD 19:19F9 2108	8h 35m	99%	75%
Delta + Unitedtwo ticketsDetails →	ATL 12:50 → DEN 14:04DL 957	3h 24m Denver	DEN 17:28 → FSD 20:08UA 645	8h 18m	98%	75%
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.

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