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 75-minute layover misses 1% of the time at 9 am and 1 time in 3 at 3 pm.

Nonstops


Southwest	LAS	MCI	2h 45m	76%	0.3%	1,731	Flying now
Frontier	LAS	MCI	2h 55m	81%few flights	0.0%	16	Flying now
Spirit	LAS	MCI	2h 47m	87%	3.3%	243	Not flying now
American	LAS	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 2 h ahead of Las Vegas). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	LAS 23:55 → MDW 05:25WN 2276	2h 35m Chicago	MDW 08:00 → MCI 09:30 +1WN 2808	7h 35m	98%	98%
Southwest Details →	LAS 05:05 → DEN 07:55WN 2223	2h 05m Denver	DEN 10:00 → MCI 12:45WN 3114	5h 40m	100%	98%
United Details →	LAS 06:00 → LAX 07:14UA 2039	2h 56m Los Angeles	LAX 10:10 → MCI 15:45UA 5426 · flown by SkyWest	7h 45m	100%	91%
Delta Details →	LAS 06:48 → LAX 08:00DL 553	1h 35m Los Angeles	LAX 09:35 → MCI 14:50DL 1517	6h 02m	98%	90%
Southwest Details →	LAS 06:30 → DEN 09:20WN 2966	3h 10m Denver	DEN 12:30 → MCI 15:05WN 351	6h 35m	100%	88%
United Details →	LAS 05:30 → DEN 08:32UA 596	1h 18m Denver	DEN 09:50 → MCI 12:38UA 2159	5h 08m	99%	87%
Delta Details →	LAS 06:00 → SLC 08:20DL 2674	2h 14m Salt Lake City	SLC 10:34 → MCI 14:00DL 2882	6h 00m	99%	87%
Delta Details →	LAS 00:33 → ATL 07:18DL 857	2h 47m Atlanta	ATL 10:05 → MCI 11:16DL 2908	8h 43m	100%	87%
Tight connection: often missed
Delta Details →	LAS 14:45 → ATL 21:57DL 591	51m Atlanta	ATL 22:48 → MCI 23:59DL 2911	7h 14m	72%	57%
American Details →	LAS 23:49 → ORD 05:37AA 2040	1h 08m Chicago	ORD 06:45 → MCI 08:32 +1AA 6250 · flown by SkyWest	6h 43m	69%	47%
United Details →	LAS 13:34 → SFO 15:16UA 1799	1h 13m San Francisco	SFO 16:29 → MCI 22:15UA 1515	6h 41m	68%	34%

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 18m · leaves 05:30 1%

DFW · 1h 19m · leaves 06:00 8%

IAH · 54m · leaves 06:00 9%

Afternoon and evening

ORD · 1h 00m · leaves 15:50 38%

PHX · 50m · leaves 13:50 45%

BNA · 48m · leaves 11:00 56%

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.


United UA 2039 LAS 06:00 → LAX Delta DL 1517 LAX 09:35 → MCI Connection details →	2h 21m	6h 50m	99%	91%
Southwest WN 2223 LAS 05:05 → DEN Frontier F9 4828 DEN 10:16 → MCI Connection details →	2h 21m	5h 55m	100%	90%
Southwest WN 2251 LAS 06:55 → LAX United UA 5426 LAX 10:10 → MCI Connection details →	2h 00m	6h 50m	97%	89%

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