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, any airlines

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.


Southwest + Deltatwo ticketsDetails →	MCI 19:10 → DEN 20:05WN 3570	3h 54m Denver	DEN 23:59 → JFK 05:48 +1DL 758	9h 38m	96%	88%
Southwest + Deltatwo ticketsDetails →	MCI 05:10 → TPA 08:45WN 4796	2h 23m Tampa	TPA 11:08 → JFK 13:59DL 2042	7h 49m	100%	85%
American + JetBluetwo ticketsDetails →	MCI 05:30 → ORD 07:31AA 3845 · flown by Envoy	2h 09m Chicago	ORD 09:40 → JFK 12:59B6 906	6h 29m	97%	82%
Southwest + Deltatwo ticketsDetails →	MCI 08:30 → DEN 09:18WN 3169	2h 52m Denver	DEN 12:10 → JFK 18:25DL 532	8h 58m	100%	81%
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%
Southwest + Deltatwo ticketsDetails →	MCI 06:50 → AUS 08:40WN 2528	2h 34m Austin	AUS 11:14 → JFK 16:12DL 1406	8h 22m	100%	80%
Southwest + Americantwo ticketsDetails →	MCI 18:30 → PHX 19:15WN 2580	2h 35m Phoenix	PHX 21:50 → JFK 05:47 +1AA 1587	10h 17m	94%	79%
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.

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