Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Southwest’s MDW → LAX flights land within a few points of 7 in 10 on time whatever the hour.

Nonstops


Southwest	MDW	LAX	4h 30m	70%	0.9%	1,298	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Los Angeles on time. Total trip = scheduled departure to arrival, layover included (Los Angeles is 2 h behind Chicago). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MDW 05:15 → DEN 06:50WN 2989	2h 45m Denver	DEN 09:35 → LAX 11:05WN 1569	7h 50m	100%	91%
Delta Details →	MDW 06:00 → ATL 08:55DL 1285	2h 35m Atlanta	ATL 11:30 → LAX 13:05DL 326	9h 08m	95%	86%
Southwest Details →	MDW 07:30 → LAS 09:20WN 347	2h 50m Las Vegas	LAS 12:10 → LAX 13:30WN 3168	8h 00m	100%	83%
Delta Details →	MDW 09:54 → MSP 11:35DL 5469 · flown by Endeavor	1h 35m Minneapolis	MSP 13:10 → LAX 15:07DL 1651	7h 13m	96%	79%
Delta Details →	MDW 09:17 → DTW 11:35DL 4674 · flown by Endeavor	2h 39m Detroit	DTW 14:14 → LAX 15:55DL 908	8h 38m	98%	76%
Southwest Details →	MDW 05:20 → PHX 06:55WN 2858	1h 00m Phoenix	PHX 07:55 → LAX 09:20WN 2427	6h 00m	88%	75%
Delta Details →	MDW 11:05 → ATL 14:01DL 1063	3h 57m Atlanta	ATL 17:58 → LAX 19:39DL 500	10h 34m	99%	74%
Southwest Details →	MDW 10:05 → SJC 12:30WN 3752	3h 50m San Jose	SJC 16:20 → LAX 17:40WN 4541	9h 35m	100%	74%
Tight connection: often missed
Delta Details →	MDW 19:06 → MSP 20:51DL 4713 · flown by Endeavor	1h 08m Minneapolis	MSP 21:59 → LAX 23:54DL 2103	6h 48m	64%	47%
Southwest Details →	MDW 12:20 → DAL 14:35WN 2757	55m Dallas	DAL 15:30 → LAX 16:40WN 3161	6h 20m	59%	26%
Southwest Details →	MDW 10:05 → SFO 12:35WN 1546	1h 40m San Francisco	SFO 14:15 → LAX 15:45WN 278	7h 40m	66%	13%

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 00m · leaves 05:15 2%

DTW · 1h 03m · leaves 09:17 16%

Afternoon and evening

MSP · 1h 08m · leaves 19:06 36%

HOU · 50m · leaves 19:15 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.


Southwest WN 680 MDW 10:00 → TUL American AA 6366 TUL 15:21 → LAX Connection details →	3h 31m	8h 55m	100%	94%
Southwest WN 4114 MDW 10:10 → OKC American AA 6272 OKC 14:22 → LAX Connection details →	2h 07m	7h 29m	96%	93%
Southwest WN 3752 MDW 10:05 → SJC Delta DL 3822 SJC 16:30 → LAX Connection details →	4h 00m	9h 51m	100%	93%

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