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

Connect in the morning. The same 75-minute layover misses 8% of the time at 12 pm and 2 times in 5 at 9 pm.

Nonstops


United	DEN	TUL	1h 49m	85%	0.7%	1,516	Flying now
Southwest	DEN	TUL	1h 35m	68%	1.2%	893	Flying now
Frontier	DEN	TUL	1h 35m	77%	0.0%	43	Not 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 1 h ahead of Denver). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DEN 00:40 → ATL 05:42DL 302	2h 39m Atlanta	ATL 08:21 → TUL 09:25DL 2754	7h 43m	99%	88%
United Details →	DEN 07:42 → IAH 11:15UA 1720	3h 20m Houston	IAH 14:35 → TUL 16:15UA 6270 · flown by Mesa	7h 33m	100%	83%
Delta Details →	DEN 12:45 → SLC 14:18DL 1553	3h 12m Salt Lake City	SLC 17:30 → TUL 20:45DL 3825 · flown by SkyWest	7h 20m	99%	81%
United Details →	DEN 15:35 → IAH 19:10UA 489	2h 32m Houston	IAH 21:42 → TUL 23:15UA 6179 · flown by Mesa	6h 40m	96%	81%
Delta Details →	DEN 07:15 → ATL 12:12DL 431	2h 43m Atlanta	ATL 14:55 → TUL 15:53DL 1186	7h 41m	98%	81%
United Details →	DEN 13:30 → IAH 17:04UA 1829	3h 10m Houston	IAH 20:14 → TUL 21:52UA 6269 · flown by Mesa	7h 22m	98%	79%
American Details →	DEN 05:00 → DFW 08:05AA 2612	3h 01m Dallas-Fort Worth	DFW 11:06 → TUL 12:18AA 3829 · flown by Envoy	6h 18m	99%	79%
United Details →	DEN 05:00 → IAH 08:32UA 320	3h 23m Houston	IAH 11:55 → TUL 13:36UA 5413 · flown by SkyWest	7h 36m	100%	79%
Tight connection: often missed
United Details →	DEN 17:18 → IAH 20:55UA 1585	47m Houston	IAH 21:42 → TUL 23:15UA 6179 · flown by Mesa	4h 57m	61%	52%
American Details →	DEN 18:10 → DFW 21:18AA 1322	1h 20m Dallas-Fort Worth	DFW 22:38 → TUL 23:47AA 531	4h 37m	59%	33%
Southwest Details →	DEN 17:50 → DAL 21:00WN 1521	55m Dallas	DAL 21:55 → TUL 23:00WN 1419	4h 10m	33%	12%

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

ORD · 1h 07m · leaves 08:00 8%

SEA · 1h 10m · leaves 08:40 10%

DFW · 50m · leaves 05:00 15%

Afternoon and evening

IAH · 47m · leaves 17:18 39%

DFW · 1h 20m · leaves 18:10 41%

DAL · 55m · leaves 17:50 67%

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 1093 DEN 06:04 → LAX American AA 6366 LAX 09:36 → TUL Connection details →	2h 02m	7h 47m	99%	95%
Southwest WN 1732 DEN 13:05 → SLC Delta DL 3825 SLC 17:30 → TUL Connection details →	2h 55m	7h 00m	98%	81%
Southwest WN 431 DEN 08:40 → PHX American AA 3826 PHX 12:45 → TUL Connection details →	3h 10m	7h 29m	100%	79%

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