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 MCI → JFK flights land within a few points of 86% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	MCI	JFK	3h 14m	86%	3.8%	366	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	MCI 05:38 → ATL 08:44DL 1204	56m Atlanta	ATL 09:40 → JFK 12:00DL 1034	5h 18m	92%	81%
American Details →	MCI 06:01 → PHX 06:50AA 2645	2h 27m Phoenix	PHX 09:17 → JFK 17:29AA 2689	10h 29m	97%	81%
Delta Details →	MCI 07:02 → SLC 08:45DL 2897	1h 14m Salt Lake City	SLC 09:59 → JFK 16:49DL 1792	8h 47m	96%	78%
American Details →	MCI 05:10 → ORD 07:01AA 6214 · flown by SkyWest	3h 59m Chicago	ORD 11:00 → JFK 14:38AA 4356 · flown by Republic	8h 28m	95%	77%
Delta Details →	MCI 09:13 → MSP 10:50DL 4867 · flown by Endeavor	2h 03m Minneapolis	MSP 12:53 → JFK 17:00DL 2661	6h 47m	94%	77%
American Details →	MCI 05:30 → ORD 07:31AA 3845 · flown by Envoy	3h 20m Chicago	ORD 10:51 → JFK 14:30AA 4350 · flown by Republic	8h 00m	100%	76%
Delta Details →	MCI 07:00 → ATL 10:04DL 1212	1h 06m Atlanta	ATL 11:10 → JFK 13:29DL 2380	5h 29m	95%	75%
Delta Details →	MCI 10:33 → DTW 13:30DL 2826	2h 48m Detroit	DTW 16:18 → JFK 18:29DL 2934	6h 56m	98%	74%
Tight connection: often missed
American Details →	MCI 13:30 → ORD 15:21AA 6249 · flown by SkyWest	1h 12m Chicago	ORD 16:33 → JFK 20:04AA 1421	5h 37m	73%	35%

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

SLC · 1h 14m · leaves 07:02 4%

ATL · 1h 06m · leaves 07:00 5%

DFW · 1h 18m · leaves 06:39 10%

Afternoon and evening

ATL · 1h 15m · leaves 12:21 6%

DFW · 1h 15m · leaves 14:37 19%

ORD · 1h 12m · leaves 13:30 27%

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 3570 MCI 19:10 → DEN Delta DL 758 DEN 23:59 → JFK Connection details →	3h 54m	9h 38m	96%	88%
Southwest WN 4796 MCI 05:10 → TPA Delta DL 2042 TPA 11:08 → JFK Connection details →	2h 23m	7h 49m	100%	85%
American AA 3845 MCI 05:30 → ORD JetBlue B6 906 ORD 09:40 → JFK Connection details →	2h 09m	6h 29m	97%	82%

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