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 5% of the time at 11 am and 43% of the time at 8 pm.

Nonstops (seasonal or thin)


United	SFO	MCI	3h 43m	70%	0.3%	365	Flying now

Best connections, any airlines

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 2 h ahead of San Francisco). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	SFO 05:00 → LAS 06:35WN 4231	3h 30m Las Vegas	LAS 10:05 → MCI 14:55WN 786	7h 55m	100%	100%
Southwest Details →	SFO 05:10 → DEN 08:40WN 1424	1h 20m Denver	DEN 10:00 → MCI 12:45WN 3114	5h 35m	96%	94%
Southwest Details →	SFO 23:40 → MDW 05:55WN 3649	2h 05m Chicago	MDW 08:00 → MCI 09:30 +1WN 2808	7h 50m	95%	93%
Southwest + Deltatwo ticketsDetails →	SFO 06:05 → LAX 07:35WN 2222	2h 00m Los Angeles	LAX 09:35 → MCI 14:50DL 1517	6h 45m	100%	93%
Alaska + Unitedtwo ticketsDetails →	SFO 06:00 → LAX 07:32AS 1620	2h 38m Los Angeles	LAX 10:10 → MCI 15:45UA 5426 · flown by SkyWest	7h 45m	100%	92%
United + Deltatwo ticketsDetails →	SFO 21:20 → ATL 05:20UA 1603	3h 00m Atlanta	ATL 08:20 → MCI 09:31 +1DL 2471	10h 11m	97%	88%
United + Deltatwo ticketsDetails →	SFO 21:30 → DTW 05:20UA 234	3h 25m Detroit	DTW 08:45 → MCI 09:48 +1DL 2826	10h 18m	100%	87%
United + Southwesttwo ticketsDetails →	SFO 05:00 → DEN 08:35UA 1479	3h 55m Denver	DEN 12:30 → MCI 15:05WN 351	8h 05m	99%	87%
Tight connection: often missed
United Details →	SFO 08:10 → IAD 16:25UA 1849	50m Dulles	IAD 17:15 → MCI 19:03UA 2057	8h 53m	73%	55%
Delta Details →	SFO 17:07 → SLC 20:02DL 1088	48m Salt Lake City	SLC 20:50 → MCI 00:18 +1DL 2993	5h 10m	57%	47%
American Details →	SFO 15:52 → PHX 18:04AA 1321	1h 28m Phoenix	PHX 19:32 → MCI 00:13 +1AA 623	6h 21m	59%	40%

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 15m · leaves 05:00 2%

IAH · 1h 10m · leaves 05:00 3%

LAX · 1h 05m · leaves 07:00 5%

Afternoon and evening

SLC · 48m · leaves 17:07 43%

ORD · 1h 09m · leaves 14:36 59%

LAS · 1h 00m · leaves 13:20 83%

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