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 1 time in 10 at 9 am and almost half the time at 8 pm.

Nonstops


Delta	ATL	MCI	2h 11m	85%	1.4%	2,739	Flying now
Southwest	ATL	MCI	2h 15m	80%	0.0%	365	Flying now
Frontier	ATL	MCI	2h 12m	67%	0.6%	166	Flying now
American	ATL	MCI	–	100%few flights	0.0%	2	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	ATL 06:25 → DEN 07:30WN 2114	2h 30m Denver	DEN 10:00 → MCI 12:45WN 3114	7h 20m	100%	98%
Southwest Details →	ATL 09:30 → DEN 10:40WN 202	1h 50m Denver	DEN 12:30 → MCI 15:05WN 351	6h 35m	100%	88%
American Details →	ATL 06:01 → DFW 07:33AA 2770	2h 27m Dallas-Fort Worth	DFW 10:00 → MCI 11:44AA 3661 · flown by Envoy	6h 43m	98%	86%
Southwest Details →	ATL 06:30 → DAL 07:35WN 192	1h 00m Dallas	DAL 08:35 → MCI 10:10WN 1343	4h 40m	93%	86%
Delta Details →	ATL 09:55 → MSP 11:30DL 2090	2h 15m Minneapolis	MSP 13:45 → MCI 15:14DL 1613	6h 19m	98%	86%
Delta Details →	ATL 07:25 → DTW 09:20DL 1646	3h 05m Detroit	DTW 12:25 → MCI 13:24DL 2741	7h 00m	99%	85%
United Details →	ATL 11:10 → DEN 12:28UA 1327	1h 12m Denver	DEN 13:40 → MCI 16:22UA 586	6h 12m	95%	83%
United Details →	ATL 11:37 → IAH 12:47UA 425	1h 48m Houston	IAH 14:35 → MCI 16:47UA 3987 · flown by Mesa	6h 10m	97%	83%
Tight connection: often missed
Delta Details →	ATL 17:55 → SLC 19:58DL 653	52m Salt Lake City	SLC 20:50 → MCI 00:18 +1DL 2993	7h 22m	71%	59%
American Details →	ATL 18:45 → CLT 20:23AA 5040 · flown by PSA	1h 11m Charlotte	CLT 21:34 → MCI 22:58AA 1732	5h 13m	53%	35%
Delta Details →	ATL 12:30 → LGA 14:48DL 525	47m New York	LGA 15:35 → MCI 18:01DL 2068	6h 33m	58%	33%

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 20m · leaves 07:25 4%

DAL · 1h 00m · leaves 06:30 7%

DTW · 1h 15m · leaves 09:18 8%

Afternoon and evening

DEN · 1h 08m · leaves 18:20 49%

DFW · 1h 11m · leaves 17:34 52%

MDW · 1h 15m · leaves 19:35 57%

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 Frontier F9 4828 DEN 10:16 → MCI Connection details →	2h 46m	7h 35m	100%	90%
Delta DL 995 ATL 09:50 → DEN United UA 586 DEN 13:40 → MCI Connection details →	2h 33m	7h 32m	99%	85%
Delta DL 2235 ATL 07:25 → DEN Southwest WN 1586 DEN 10:48 → MCI Connection details →	2h 13m	7h 03m	98%	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