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 → MEM flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	MDW	MEM	1h 40m	81%	1.5%	670	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Memphis on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	MDW 06:00 → ATL 08:55DL 1285	3h 20m Atlanta	ATL 12:15 → MEM 12:35DL 2778	6h 35m	96%	82%
Southwest Details →	MDW 06:50 → DEN 08:20WN 2765	2h 10m Denver	DEN 10:30 → MEM 13:55WN 4698	7h 05m	100%	77%
Southwest Details →	MDW 06:40 → DAL 09:00WN 3796	3h 25m Dallas	DAL 12:25 → MEM 13:50WN 888	7h 10m	100%	76%
Delta Details →	MDW 11:05 → ATL 14:01DL 1063	3h 52m Atlanta	ATL 17:53 → MEM 18:18DL 2939	7h 13m	99%	74%
Southwest Details →	MDW 08:55 → BWI 11:45WN 1355	3h 30m Baltimore	BWI 15:15 → MEM 16:30WN 4024	7h 35m	100%	69%
Delta Details →	MDW 17:10 → ATL 20:22DL 1728	2h 38m Atlanta	ATL 23:00 → MEM 23:24DL 2501	6h 15m	95%	68%
Southwest Details →	MDW 08:00 → MCO 11:35WN 2817	2h 45m Orlando	MCO 14:20 → MEM 15:35WN 3345	7h 35m	100%	64%
Southwest Details →	MDW 10:10 → HOU 12:50WN 2783	1h 55m Houston	HOU 14:45 → MEM 16:20WN 410	6h 10m	95%	59%
Tight connection: often missed
Southwest Details →	MDW 16:15 → DEN 18:00WN 2769	1h 10m Denver	DEN 19:10 → MEM 22:32WN 2225	6h 20m	67%	25%

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

ATL · 1h 15m · leaves 06:00 8%

Afternoon and evening

DEN · 1h 10m · leaves 16:15 33%

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 2765 MDW 06:50 → DEN United UA 1112 DEN 11:05 → MEM Connection details →	2h 45m	7h 36m	100%	92%
Southwest WN 3054 MDW 07:15 → ATL Delta DL 2778 ATL 12:15 → MEM Connection details →	2h 10m	5h 20m	100%	87%
Southwest WN 2960 MDW 11:10 → DEN Frontier F9 4626 DEN 15:43 → MEM Connection details →	3h 03m	7h 53m	96%	81%

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