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

The nonstop is quickest: American ORD → IDA (3h 34m), on time 56% of the time. United via Denver (5h 50m) is more reliable, 86%, but takes 2h 16m longer.

Nonstops (seasonal or thin)


American	ORD	IDA	3h 34m	57%	0.6%	160	Flying now
United	ORD	IDA	–	80%few flights	0.0%	10	Not flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta Details →	ORD 07:45 → SLC 10:15DL 2231	3h 15m Salt Lake City	SLC 13:30 → IDA 14:37DL 3765 · flown by SkyWest	7h 52m	96%	88%
American Details →	ORD 05:00 → DFW 07:30AA 760	2h 42m Dallas-Fort Worth	DFW 10:12 → IDA 12:23AA 6219 · flown by SkyWest	8h 23m	99%	86%
United Details →	ORD 05:00 → DEN 06:42UA 2666	1h 23m Denver	DEN 08:05 → IDA 09:50UA 5374 · flown by SkyWest	5h 50m	99%	86%
United Details →	ORD 08:40 → DEN 10:31UA 526	3h 19m Denver	DEN 13:50 → IDA 15:34UA 5950 · flown by SkyWest	7h 54m	100%	82%
United Details →	ORD 10:54 → DEN 12:45UA 581	2h 50m Denver	DEN 15:35 → IDA 17:19UA 5322 · flown by SkyWest	7h 25m	97%	81%
United + Alaskatwo ticketsDetails →	ORD 13:30 → SEA 16:09UA 1660	3h 41m Seattle	SEA 19:50 → IDA 22:39AS 3423 · flown by SkyWest	10h 09m	100%	78%
United + Alaskatwo ticketsDetails →	ORD 07:00 → SEA 09:40UA 341	3h 05m Seattle	SEA 12:45 → IDA 15:37AS 3490 · flown by SkyWest	9h 37m	100%	73%
American + Unitedtwo ticketsDetails →	ORD 06:41 → DEN 08:24AA 1747	3h 21m Denver	DEN 11:45 → IDA 13:25UA 2383	7h 44m	99%	71%
Tight connection: often missed
United Details →	ORD 12:56 → DEN 14:46UA 1150	49m Denver	DEN 15:35 → IDA 17:19UA 5322 · flown by SkyWest	5h 23m	73%	61%
United Details →	ORD 16:12 → DEN 18:13UA 2769	1h 07m Denver	DEN 19:20 → IDA 21:07UA 5989 · flown by SkyWest	5h 55m	64%	41%

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