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 TUL → DAL flights land within a few points of 87% on time whatever the hour.

Nonstops


Southwest	TUL	DAL	1h 05m	87%	1.4%	1,049	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	TUL 07:35 → BNA 09:10WN 4051	3h 10m Nashville	BNA 12:20 → DAL 14:15WN 5046	6h 40m	100%	85%
Delta Details →	TUL 06:00 → ATL 09:00DL 1259	1h 15m Atlanta	ATL 10:15 → DAL 11:24DL 1115	5h 24m	95%	83%
Southwest Details →	TUL 06:35 → PHX 07:05WN 4287	1h 10m Phoenix	PHX 08:15 → DAL 12:40WN 875	6h 05m	85%	79%
Delta Details →	TUL 10:11 → ATL 13:14DL 2754	3h 24m Atlanta	ATL 16:38 → DAL 17:55DL 2780	7h 44m	100%	75%
Southwest Details →	TUL 05:00 → MDW 06:45WN 4057	3h 15m Chicago	MDW 10:00 → DAL 12:15WN 1487	7h 15m	100%	73%
Southwest Details →	TUL 12:25 → HOU 14:05WN 680	1h 55m Houston	HOU 16:00 → DAL 17:10WN 40	4h 45m	98%	72%
Southwest Details →	TUL 06:00 → DEN 06:50WN 1676	3h 15m Denver	DEN 10:05 → DAL 13:10WN 1518	7h 10m	98%	72%
Delta Details →	TUL 16:45 → ATL 19:50DL 1186	1h 25m Atlanta	ATL 21:15 → DAL 22:34DL 1104	5h 49m	89%	70%
Tight connection: often missed
Southwest Details →	TUL 16:20 → BNA 17:55WN 2374	1h 03m Nashville	BNA 18:58 → DAL 20:52WN 490	4h 33m	69%	29%
Southwest Details →	TUL 18:40 → DEN 19:30WN 4333	1h 00m Denver	DEN 20:30 → DAL 23:30WN 1523	4h 50m	41%	17%

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 5%

Afternoon and evening

ATL · 53m · leaves 12:41 18%

DEN · 1h 00m · leaves 18:40 59%

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 1518 DEN 10:05 → DAL Connection details →	3h 05m	7h 10m	98%	72%
United UA 5276 TUL 11:44 → DEN Southwest WN 1388 DEN 15:55 → DAL Connection details →	3h 11m	7h 16m	96%	36%
United UA 5914 TUL 17:10 → DEN Southwest WN 1523 DEN 20:30 → DAL Connection details →	2h 20m	6h 20m	86%	34%

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