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

No clear winner: Delta’s ATL → CID flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops (seasonal or thin)


Delta	ATL	CID	2h 07m	76%	1.6%	367	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest + Unitedtwo ticketsDetails →	ATL 09:30 → DEN 10:40WN 202	3h 15m Denver	DEN 13:55 → CID 17:01UA 5677 · flown by SkyWest	8h 31m	100%	85%
Southwest + Unitedtwo ticketsDetails →	ATL 06:25 → DEN 07:30WN 2114	3h 50m Denver	DEN 11:20 → CID 14:15UA 476	8h 50m	100%	84%
Delta + Frontiertwo ticketsDetails →	ATL 07:25 → DEN 08:35DL 2235	2h 29m Denver	DEN 11:04 → CID 14:06F9 4386	7h 41m	99%	81%
United + Americantwo ticketsDetails →	ATL 11:29 → ORD 12:52UA 1239	3h 58m Chicago	ORD 16:50 → CID 18:11AA 3458 · flown by Envoy	7h 42m	100%	79%
Delta + Americantwo ticketsDetails →	ATL 11:28 → DFW 12:50DL 414	2h 38m Dallas-Fort Worth	DFW 15:28 → CID 17:33AA 3461 · flown by Envoy	7h 05m	95%	76%
Delta + Americantwo ticketsDetails →	ATL 16:13 → DFW 17:32DL 374	3h 48m Dallas-Fort Worth	DFW 21:20 → CID 23:31AA 3798 · flown by Envoy	8h 16m	96%	76%
American + Unitedtwo ticketsDetails →	ATL 07:25 → ORD 08:45AA 616	3h 55m Chicago	ORD 12:40 → CID 13:58UA 4647 · flown by SkyWest	7h 33m	95%	75%
American Details →	ATL 06:00 → DCA 08:06AA 5501 · flown by PSA	2h 33m Washington	DCA 10:39 → CID 12:10AA 3462 · flown by Envoy	7h 13m	96%	73%
Tight connection: often missed
American Details →	ATL 19:43 → ORD 21:11AA 1372	1h 29m Chicago	ORD 22:40 → CID 23:49AA 3326	5h 11m	61%	32%
United Details →	ATL 19:04 → ORD 20:30UA 1046	50m Chicago	ORD 21:20 → CID 22:42UA 1923	4h 38m	45%	27%
American Details →	ATL 17:34 → DFW 19:08AA 1376	47m Dallas-Fort Worth	DFW 19:55 → CID 22:05AA 4291 · flown by Envoy	5h 30m	34%	24%

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

MSP · 1h 16m · leaves 07:25 4%

ORD · 1h 15m · leaves 07:25 20%

Afternoon and evening

ORD · 50m · leaves 19:04 55%

DFW · 47m · leaves 17:34 66%

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