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 1% of the time at 7 am and 44% of the time at 8 pm.

Nonstops


United	ORD	BOI	3h 55m	72%	2.2%	730	Flying now
American	ORD	BOI	4h 02m	69%	0.3%	378	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ORD 05:00 → DEN 06:42UA 2666	1h 03m Denver	DEN 07:45 → BOI 09:53UA 4765 · flown by SkyWest	5h 53m	99%	96%
American Details →	ORD 05:00 → PHX 06:32AA 2434	3h 38m Phoenix	PHX 10:10 → BOI 13:27AA 4948 · flown by SkyWest	9h 27m	99%	89%
United Details →	ORD 13:00 → LAX 15:34UA 1363	3h 23m Los Angeles	LAX 18:57 → BOI 22:05UA 5363 · flown by SkyWest	10h 05m	96%	86%
Delta Details →	ORD 06:55 → SEA 09:31DL 2041	2h 59m Seattle	SEA 12:30 → BOI 15:12DL 3959 · flown by SkyWest	9h 17m	98%	85%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	1h 57m Atlanta	ATL 10:30 → BOI 12:54DL 874	8h 24m	97%	85%
Delta Details →	ORD 14:42 → LAX 17:14DL 967	2h 45m Los Angeles	LAX 19:59 → BOI 23:04DL 4148 · flown by SkyWest	9h 22m	95%	83%
Delta Details →	ORD 07:35 → LAX 10:01DL 1556	1h 43m Los Angeles	LAX 11:44 → BOI 14:46DL 3773 · flown by SkyWest	8h 16m	93%	83%
Delta Details →	ORD 06:30 → MSP 08:06DL 1717	3h 33m Minneapolis	MSP 11:39 → BOI 13:51DL 2982	8h 21m	97%	82%
Tight connection: often missed
Delta Details →	ORD 13:00 → SEA 15:43DL 1564	52m Seattle	SEA 16:35 → BOI 19:13DL 3688 · flown by SkyWest	7h 11m	59%	50%
Alaska Details →	ORD 08:02 → SEA 10:37AS 587	59m Seattle	SEA 11:36 → BOI 14:07AS 2106 · flown by Horizon	7h 05m	63%	44%
American Details →	ORD 16:51 → DFW 19:28AA 2988	1h 37m Dallas-Fort Worth	DFW 21:05 → BOI 23:21AA 1104	7h 30m	69%	28%

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

DEN · 1h 03m · leaves 05:00 1%

PHX · 1h 04m · leaves 07:25 13%

ATL · 49m · leaves 06:35 19%

Afternoon and evening

ATL · 54m · leaves 15:22 28%

SEA · 46m · leaves 17:55 52%

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 341 ORD 07:00 → SEA Delta DL 3959 SEA 12:30 → BOI Connection details →	2h 50m	9h 12m	100%	88%
United UA 2099 ORD 08:45 → SEA Delta DL 4127 SEA 14:54 → BOI Connection details →	3h 16m	9h 45m	98%	87%
United UA 2373 ORD 06:00 → LAX Delta DL 3773 LAX 11:44 → BOI Connection details →	3h 17m	9h 51m	97%	86%

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