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

Take the nonstop: Southwest MEM → MDW (1h 35m) reaches Chicago on time 83% of the time; the most reliable connection, Southwest via Nashville (3h 55m), 42%.

Nonstops (seasonal or thin)


Southwest	MEM	MDW	1h 35m	84%	1.8%	670	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	MEM 05:15 → ATL 07:35DL 1666	3h 30m Atlanta	ATL 11:05 → MDW 12:05DL 2417	6h 50m	98%	83%
Southwest Details →	MEM 08:25 → BNA 09:20WN 2913	3h 35m Nashville	BNA 12:55 → MDW 14:30WN 1430	6h 05m	98%	77%
Delta Details →	MEM 06:30 → DTW 09:23DL 2370	3h 02m Detroit	DTW 12:25 → MDW 12:46DL 4688 · flown by Endeavor	6h 16m	96%	75%
Delta Details →	MEM 10:36 → ATL 12:54DL 2071	2h 21m Atlanta	ATL 15:15 → MDW 16:15DL 1728	5h 39m	98%	72%
Delta Details →	MEM 16:21 → ATL 18:46DL 1700	2h 29m Atlanta	ATL 21:15 → MDW 22:17DL 1076	5h 56m	95%	71%
Southwest Details →	MEM 09:40 → DEN 11:05WN 579	1h 55m Denver	DEN 13:00 → MDW 16:20WN 1601	6h 40m	98%	58%
Delta Details →	MEM 06:00 → MSP 08:13DL 3899 · flown by SkyWest	3h 17m Minneapolis	MSP 11:30 → MDW 13:09DL 4820 · flown by Endeavor	7h 09m	97%	57%
Delta Details →	MEM 12:09 → MSP 14:25DL 3989 · flown by SkyWest	2h 13m Minneapolis	MSP 16:38 → MDW 18:18DL 4714 · flown by Endeavor	6h 08m	95%	55%
Tight connection: often missed
Delta Details →	MEM 17:54 → ATL 20:29DL 552	46m Atlanta	ATL 21:15 → MDW 22:17DL 1076	4h 23m	63%	47%
Southwest Details →	MEM 14:30 → DAL 15:50WN 4127	1h 00m Dallas	DAL 16:50 → MDW 19:05WN 36	4h 35m	54%	15%

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 20m · leaves 07:25 6%

Afternoon and evening

ATL · 46m · leaves 17:54 37%

DAL · 1h 00m · leaves 14:30 46%

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.


American AA 978 MEM 05:00 → CLT Southwest WN 4529 CLT 11:35 → MDW Connection details →	3h 49m	7h 35m	98%	94%
Delta DL 1666 MEM 05:15 → ATL Southwest WN 224 ATL 10:00 → MDW Connection details →	2h 25m	5h 45m	95%	83%
Delta DL 4088 MEM 06:40 → AUS Southwest WN 4077 AUS 10:25 → MDW Connection details →	1h 47m	6h 15m	90%	78%

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