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 TUL → MDW (1h 45m) reaches Chicago on time 85% of the time; the most reliable connection, Southwest via Nashville (4h 45m), 43%.

Nonstops (seasonal or thin)


Southwest	TUL	MDW	1h 45m	85%	0.9%	451	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.


Southwest Details →	TUL 06:00 → DEN 06:50WN 1676	3h 10m Denver	DEN 10:00 → MDW 13:25WN 755	7h 25m	98%	86%
Southwest Details →	TUL 05:35 → DAL 06:40WN 4814	3h 25m Dallas	DAL 10:05 → MDW 12:20WN 1357	6h 45m	100%	81%
Delta Details →	TUL 06:00 → ATL 09:00DL 1259	2h 05m Atlanta	ATL 11:05 → MDW 12:05DL 2417	6h 05m	97%	80%
Southwest Details →	TUL 07:35 → BNA 09:10WN 4051	3h 45m Nashville	BNA 12:55 → MDW 14:30WN 1430	6h 55m	100%	78%
Southwest Details →	TUL 20:35 → LAS 21:25WN 4056	2h 30m Las Vegas	LAS 23:55 → MDW 05:25 +1WN 2276	8h 50m	88%	74%
Delta Details →	TUL 10:11 → ATL 13:14DL 2754	2h 01m Atlanta	ATL 15:15 → MDW 16:15DL 1728	6h 04m	99%	73%
Delta Details →	TUL 16:45 → ATL 19:50DL 1186	1h 25m Atlanta	ATL 21:15 → MDW 22:17DL 1076	5h 32m	89%	66%
Southwest Details →	TUL 10:20 → DEN 11:00WN 690	4h 00m Denver	DEN 15:00 → MDW 18:20WN 1603	8h 00m	100%	59%
Tight connection: often missed
Southwest Details →	TUL 17:18 → MCO 21:05WN 2091	55m Orlando	MCO 22:00 → MDW 22:00WN 4762	6h 32m	50%	24%
Southwest Details →	TUL 18:40 → DEN 19:30WN 4333	1h 20m Denver	DEN 20:50 → MDW 00:15 +1WN 1615	5h 32m	59%	21%

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.

Afternoon and evening

DEN · 1h 20m · leaves 18:40 41%

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 5667 TUL 06:00 → DEN Southwest WN 755 DEN 10:00 → MDW Connection details →	3h 00m	7h 25m	98%	85%
Delta DL 1259 TUL 06:00 → ATL Southwest WN 225 ATL 12:30 → MDW Connection details →	3h 30m	7h 25m	98%	71%
United UA 1029 TUL 09:22 → DEN Southwest WN 1601 DEN 13:00 → MDW Connection details →	2h 50m	6h 58m	97%	57%

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