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

No clear winner: Alaska’s SEA → TUL flights land within a few points of 82% on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	SEA	TUL	3h 44m	82%	0.0%	136	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SEA 22:58 → ATL 06:45DL 409	1h 36m Atlanta	ATL 08:21 → TUL 09:25 +1DL 2754	8h 25m	100%	90%
United Details →	SEA 05:00 → DEN 08:43UA 2601	1h 21m Denver	DEN 10:04 → TUL 12:59UA 5315 · flown by SkyWest	5h 59m	99%	87%
American Details →	SEA 23:56 → ORD 06:02AA 2881	3h 38m Chicago	ORD 09:40 → TUL 11:44 +1AA 4135 · flown by Envoy	9h 48m	99%	87%
United Details →	SEA 11:55 → IAH 18:35UA 2293	3h 07m Houston	IAH 21:42 → TUL 23:15UA 6179 · flown by Mesa	9h 20m	100%	84%
United Details →	SEA 08:56 → DEN 12:45UA 1505	2h 50m Denver	DEN 15:35 → TUL 18:24UA 5280 · flown by SkyWest	7h 28m	97%	83%
Delta Details →	SEA 23:59 → ATL 07:46DL 652	3h 14m Atlanta	ATL 11:00 → TUL 11:56 +1DL 2620	9h 57m	99%	82%
Delta Details →	SEA 11:05 → SLC 14:11DL 1265	3h 19m Salt Lake City	SLC 17:30 → TUL 20:45DL 3825 · flown by SkyWest	8h 00m	99%	82%
Southwest Details →	SEA 05:15 → DEN 08:50WN 3615	1h 30m Denver	DEN 10:20 → TUL 13:05WN 1762	5h 50m	96%	82%
Tight connection: often missed
Delta Details →	SEA 13:30 → SLC 16:40DL 1120	50m Salt Lake City	SLC 17:30 → TUL 20:45DL 3825 · flown by SkyWest	5h 35m	74%	61%
American Details →	SEA 11:40 → DFW 17:50AA 767	46m Dallas-Fort Worth	DFW 18:36 → TUL 19:48AA 3830 · flown by Envoy	6h 08m	49%	32%
Southwest Details →	SEA 15:05 → DAL 21:00WN 1404	55m Dallas	DAL 21:55 → TUL 23:00WN 1419	5h 55m	11%	4%

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

IAH · 1h 16m · leaves 23:49 12%

Afternoon and evening

ORD · 59m · leaves 13:55 36%

DFW · 46m · leaves 11:40 51%

DAL · 55m · leaves 15:05 89%

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.


Alaska AS 328 SEA 00:17 → ORD American AA 4135 ORD 09:40 → TUL Connection details →	3h 20m	9h 27m	99%	89%
Southwest WN 3397 SEA 07:50 → DEN United UA 5311 DEN 13:40 → TUL Connection details →	2h 15m	6h 39m	98%	87%
Delta DL 1358 SEA 08:30 → DEN United UA 5280 DEN 15:35 → TUL Connection details →	3h 17m	7h 54m	99%	85%

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