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 one-hour layover misses 5% of the time at 9 am and 42% of the time at 6 pm.

Nonstops (seasonal or thin)


United	BZN	IAH	3h 38m	80%	2.3%	86	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included (Houston is 1 h ahead of Bozeman). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BZN 05:15 → SLC 06:36DL 491	2h 49m Salt Lake City	SLC 09:25 → IAH 13:28DL 2502	7h 13m	99%	89%
Delta + Unitedtwo ticketsDetails →	BZN 08:25 → SEA 09:29DL 4092 · flown by SkyWest	2h 26m Seattle	SEA 11:55 → IAH 18:35UA 2293	9h 10m	96%	86%
Delta + Unitedtwo ticketsDetails →	BZN 12:13 → SLC 13:39DL 1971	3h 54m Salt Lake City	SLC 17:33 → IAH 21:50UA 6282 · flown by Mesa	8h 37m	99%	82%
Alaska + Unitedtwo ticketsDetails →	BZN 18:58 → SEA 20:02AS 3498 · flown by SkyWest	3h 47m Seattle	SEA 23:49 → IAH 06:10 +1UA 2379	10h 12m	98%	82%
Delta + Unitedtwo ticketsDetails →	BZN 06:00 → MSP 09:18DL 1678	2h 47m Minneapolis	MSP 12:05 → IAH 15:00UA 1795	8h 00m	98%	81%
American + Unitedtwo ticketsDetails →	BZN 11:39 → DFW 15:45AA 1653	3h 49m Dallas-Fort Worth	DFW 19:34 → IAH 20:55UA 2114	8h 16m	99%	78%
Alaska Details →	BZN 15:05 → SEA 16:05AS 286	1h 28m Seattle	SEA 17:33 → IAH 23:59AS 1579	7h 54m	88%	78%
Southwest + Unitedtwo ticketsDetails →	BZN 11:15 → DEN 12:55WN 1131	3h 25m Denver	DEN 16:20 → IAH 19:57UA 588	7h 42m	100%	78%
Tight connection: often missed
United Details →	BZN 12:48 → ORD 16:57UA 2202	48m Chicago	ORD 17:45 → IAH 20:50UA 1954	7h 02m	63%	48%
United Details →	BZN 16:24 → ORD 20:40UA 1744	1h 00m Chicago	ORD 21:40 → IAH 00:34 +1UA 2665	7h 10m	66%	48%
American Details →	BZN 16:14 → DFW 20:24AA 1647	46m Dallas-Fort Worth	DFW 21:10 → IAH 22:24AA 2209	5h 10m	49%	22%

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

MSP · 1h 06m · leaves 06:00 5%

DFW · 1h 11m · leaves 06:45 8%

Afternoon and evening

ORD · 48m · leaves 12:48 37%

SFO · 1h 04m · leaves 16:17 42%

DFW · 46m · leaves 16:14 51%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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